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Note: This page contains sample records for the topic "atomic bomb survivors" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


1

Lifestyle Factors, Radiation and Gastric Cancer in Atomic-Bomb Survivors (Japan)  

Science Journals Connector (OSTI)

Longitudinal study including 38,576 atomic-bomb survivors in Hiroshima and Nagasaki, Japan, followed-up between 1980 and 1999. Individual radiation dose was estimated according to the Dosimetry...

Catherine Sauvaget; Frédéric Lagarde; Jun Nagano; Midori Soda…

2005-09-01T23:59:59.000Z

2

Cancer and non-cancer effects in Japanese atomic bomb survivorsPresented as an invited paper at the 21st LH Gray Conference 'The Radiobiology—Radiation  

Science Journals Connector (OSTI)

The survivors of the atomic bombings in Hiroshima and Nagasaki are a general population of all ages and sexes and, because of the wide and well characterised range of doses received, have been used by many scientific committees (International Commission on Radiological Protection (ICRP), United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR), Biological Effects of Ionizing Radiations (BEIR)) as the basis of population cancer risk estimates following radiation exposure. Leukaemia was the first cancer to be associated with atomic bomb radiation exposure, with preliminary indications of an excess among the survivors within the first five years after the bombings. An excess of solid cancers became apparent approximately ten years after radiation exposure. With increasing follow-up, excess risks of most cancer types have been observed, the major exceptions being chronic lymphocytic leukaemia, and pancreatic, prostate and uterine cancer. For most solid cancer sites a linear dose response is observed, although in the latest follow-up of the mortality data there is evidence (p = 0.10) for an upward curvature in the dose response for all solid cancers. The only cancer sites which exhibit (upward) curvature in the dose response are leukaemia, and non-melanoma skin and bone cancer. For leukaemia the dose response is very markedly upward curving, indeed largely describable as a pure quadratic dose response, particularly in the low dose (0–2 Sv) range. Even 55 years after the bombings over 40% of the Life Span Study cohort remain alive, so continued follow-up of this group is vital for completing our understanding of long-term radiation effects in people. In general, the relative risks per unit dose among the Japanese atomic bomb survivors are greater than those among comparable subsets in studies of medically exposed individuals. Cell sterilisation largely accounts for the discrepancy in relative risks between these two populations, although other factors may contribute, such as the generally higher underlying cancer risks in the medical series than in the Japanese atomic bomb survivors. Risks among occupationally exposed groups such as nuclear workforces and underground miners are generally consistent with those observed in the Japanese atomic bomb survivors. In general, consistent patterns of variation of risk with age at exposure are also seen in all studies—risks for all cancer types diminish with increasing age at exposure. There are also excess risks of various types of non-malignant disease in the Japanese atomic bomb survivors, in particular cardiovascular, respiratory and digestive diseases. Indeed, risks are elevated to much the same degree for a number of non-malignant disease endpoints, suggestive of bias. However, in contrast with the cancer data, there is much less consistency in the pattern of risk between the atomic bomb survivors and other exposed groups; for example, radiation-associated respiratory and digestive diseases have not been seen in these other groups. Although cardiovascular risks have been seen elsewhere, particularly in medically exposed groups, in contrast with the cancer data there is much less consistency in risk between studies: risks per unit dose in epidemiological studies vary over at least two orders of magnitude, possibly as a result of confounding factors. In the absence of a convincing mechanistic explanation of epidemiological evidence, at present a cause-and-effect interpretation of the reported statistical associations for cardiovascular disease is unreliable but cannot be excluded. Further epidemiological and biological evidence will allow a firmer conclusion to be drawn.

M P Little

2009-01-01T23:59:59.000Z

3

E-Print Network 3.0 - a-bomb survivors exposed Sample Search...  

NLE Websites -- All DOE Office Websites (Extended Search)

FISH are A- bomb survivors and Chernobyl liquidators... R, Awa AA, Nakamura N. 2001. Detection of stable chromosome aberrations by FISH in A-bomb survivors... aberrations in...

4

E-Print Network 3.0 - a-bomb survivors Sample Search Results  

NLE Websites -- All DOE Office Websites (Extended Search)

The reason that the A-bomb... depicts lifetime cancer risks from a given low dose of radiation, based on results from A-bomb survivors... .15 200 mAs different organs from these...

5

Publication of New Atomic Bomb Radiation Dosimetry System  

Energy.gov (U.S. Department of Energy (DOE))

Atomic bomb dosimetry studies. The Radiation Effects Research Foundation Dosimetry System 2002 (DS02)

6

President Roosevelt Approves Production of Atomic Bomb | National Nuclear  

National Nuclear Security Administration (NNSA)

Approves Production of Atomic Bomb | National Nuclear Approves Production of Atomic Bomb | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Home > About Us > Our History > NNSA Timeline > President Roosevelt Approves Production of Atomic Bomb President Roosevelt Approves Production of Atomic Bomb January 19, 1942 Washington, DC President Roosevelt Approves Production of Atomic Bomb

7

Commemoration of the 60th Annniversary of The Atomic Bomb Casualty...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

60th Annniversary of The Atomic Bomb Casualty CommissionRadiation Effects Research Foundation Commemoration of the 60th Annniversary of The Atomic Bomb Casualty Commission...

8

Manhattan Project: The Atomic Bombing of Nagasaki, August 9, 1945  

Office of Scientific and Technical Information (OSTI)

Nagasaki, August 9, 1945 THE ATOMIC BOMBING OF NAGASAKI Nagasaki, August 9, 1945 THE ATOMIC BOMBING OF NAGASAKI (Nagasaki, Japan, August 9, 1945) Events > Dawn of the Atomic Era, 1945 The War Enters Its Final Phase, 1945 Debate Over How to Use the Bomb, Late Spring 1945 The Trinity Test, July 16, 1945 Safety and the Trinity Test, July 1945 Evaluations of Trinity, July 1945 Potsdam and the Final Decision to Bomb, July 1945 The Atomic Bombing of Hiroshima, August 6, 1945 The Atomic Bombing of Nagasaki, August 9, 1945 Japan Surrenders, August 10-15, 1945 The Manhattan Project and the Second World War, 1939-1945 The next break in the weather over Japan was due to appear just three days after the attack on Hiroshima, to be followed by at least five more days of prohibitive weather. The plutonium implosion bomb, nicknamed "Fat Man," was rushed into readiness to take advantage of this window. No further orders were required for the attack. Truman's order of July 25th had authorized the dropping of additional bombs as soon as they were ready. At 3:47 a.m. on August 9, 1945, a B-29 named Bock's Car lifted off from Tinian and headed toward the primary target: Kokura Arsenal, a massive collection of war industries adjacent to the city of Kokura.

9

Gosling, The Manhattan Project: Making the Atomic Bomb | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Gosling, The Manhattan Project: Making the Atomic Gosling, The Manhattan Project: Making the Atomic Bomb Gosling, The Manhattan Project: Making the Atomic Bomb F.G. Gosling. The Manhattan Project: Making the Atomic Bomb. DOE/MA-0002 Revised. Washington, D.C.: Department of Energy, 2010. 115 pp., with 38 pp. photo gallery). From the Forward to the 2010 Edition: "In a national survey at the turn of the millennium, journalists and historians ranked the dropping of the atomic bomb and the surrender of Japan to end the Second World War as the top story of the twentieth century. The advent of nuclear weapons, brought about by the Manhattan Project, not only helped bring an end to World War II but ushered in the atomic age and determined how the next war-the Cold War-would be fought. The Manhattan Project also became the organizational model behind

10

Manhattan Project: Order to Drop the Atomic Bomb  

Office of Scientific and Technical Information (OSTI)

ORDER TO DROP THE ATOMIC BOMB Handy to Spaatz, National Archives (July 25, 1945) Resources > Library The document below is the order to attack Japanese cities with atomic bombs. In it, the Acting Army Chief of Staff, Thomas Handy, orders Commanding General Carl Spaatz, Army Strategic Air Forces, to "deliver [the] first special bomb as soon as weather will permit . . . after about 3 August 1945." The target list: "Hiroshima, Kokura, Niigata, and Nagasaki." Further attacks were also authorized: "additional bombs will be delivered on the above targets as soon as made ready." Handy was the acting chief of staff because George Marshall was with President Harry S. Truman at the Potsdam Conference. The letter explicitly notes that this order was approved by Marshall and Secretary of War Henry Stimson. Truman, of course, provided the ultimate authorization for dropping the bomb.

11

Manhattan Project: The Atomic Bombing of Hiroshima, August 6, 1945  

Office of Scientific and Technical Information (OSTI)

Hiroshima, August 6, 1945 THE ATOMIC BOMBING OF HIROSHIMA Hiroshima, August 6, 1945 THE ATOMIC BOMBING OF HIROSHIMA (Hiroshima, Japan, August 6, 1945) Events > Dawn of the Atomic Era, 1945 The War Enters Its Final Phase, 1945 Debate Over How to Use the Bomb, Late Spring 1945 The Trinity Test, July 16, 1945 Safety and the Trinity Test, July 1945 Evaluations of Trinity, July 1945 Potsdam and the Final Decision to Bomb, July 1945 The Atomic Bombing of Hiroshima, August 6, 1945 The Atomic Bombing of Nagasaki, August 9, 1945 Japan Surrenders, August 10-15, 1945 The Manhattan Project and the Second World War, 1939-1945 In the early morning hours of August 6, 1945, a B-29 bomber named Enola Gay took off from the island of Tinian and headed north by northwest toward Japan. The bomber's primary target was the city of Hiroshima, located on the deltas of southwestern Honshu Island facing the Inland Sea. Hiroshima had a civilian population of almost 300,000 and was an important military center, containing about 43,000 soldiers.

12

SciTech Connect: MEDICAL EFFECTS OF ATOMIC BOMBS THE REPORT OF...  

Office of Scientific and Technical Information (OSTI)

MEDICAL EFFECTS OF ATOMIC BOMBS THE REPORT OF THE JOINT COMMISSION FOR THE INVESTIGATION OF THE EFFECTS OF THE ATOMIC BOMB IN JAPAN VOLUME 1 Citation Details In-Document Search...

13

Commemoration of the 60th Annniversary of The Atomic Bomb Casualty Commission/Radiation Effects Research Foundation  

Energy.gov (U.S. Department of Energy (DOE))

Commemoration of the 60th Annniversary of The Atomic Bomb Casualty Commission/Radiation Effects Research Foundation (ABCC/RERF)

14

Atomic Bombs, Winning the War and Women in Pants: Voices of the Manhattan  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Atomic Bombs, Winning the War and Women in Pants: Voices of the Atomic Bombs, Winning the War and Women in Pants: Voices of the Manhattan Project Speak of the Nation's History Atomic Bombs, Winning the War and Women in Pants: Voices of the Manhattan Project Speak of the Nation's History November 28, 2012 - 12:00pm Addthis Manhattan Project veteran Ralph Gates (far right) celebrates Christmas in 1945. Gates contributed to the Voices of the Manhattan Project, a storytelling project launched by the Atomic Heritage Foundation and Los Alamos Historical Society. Manhattan Project veteran Ralph Gates (far right) celebrates Christmas in 1945. Gates contributed to the Voices of the Manhattan Project, a storytelling project launched by the Atomic Heritage Foundation and Los Alamos Historical Society. WASHINGTON, D.C. - A year out of high school in 1944, Nashville native

15

The development of the atomic bomb, Los Alamos  

SciTech Connect

The historical presentation begins with details of the selection of Los Alamos as the site of the Army installation. Wartime efforts of the Army Corps of Engineers, and scientists to include the leader of Los Alamos, Robert Oppenheimer are presented. The layout and construction of the facilities are discussed. The monumental design requirements of the bombs are discussed, including but not limited to the utilization of the second choice implosion method of detonation, and the production of bomb-grade nuclear explosives. The paper ends with a philosophical discussion on the use of nuclear weapons.

Seidel, R.W.

1993-11-01T23:59:59.000Z

16

Genetic studies at the Atomic Bomb Casualty Commission–Radiation Effects Research Foundation: 1946–1997  

Science Journals Connector (OSTI)

...environment but especially from radon (12). This annual exposure is...Mice When the atomic bomb project, the Manhattan Engineering District, was initiated...but current national and international recommendations regarding permissible...History, 20th Century Humans International Cooperation Japan Male Mice...

James V. Neel

1998-01-01T23:59:59.000Z

17

Plowshare Program - American Atomic Bomb Tests For Industrial Applications  

SciTech Connect

The United States Atomic Energy Commission (AEC) established the Plowshare Program as a research and development activity to explore the technical and economic feasibility of using nuclear explosives for industrial applications. The reasoning was that the relatively inexpensive energy available from nuclear explosions could prove useful for a wide variety of peaceful purposes. The Plowshare Program began in 1958 and continued through 1975. Between December 1961 and May 1973, the United States conducted 27 Plowshare nuclear explosive tests comprising 35 individual detonations. Conceptually, industrial applications resulting from the use of nuclear explosives could be divided into two broad categories: 1) large-scale excavation and quarrying, where the energy from the explosion was used to break up and/or move rock; and 2) underground engineering, where the energy released from deeply buried nuclear explosives increased the permeability and porosity of the rock by massive breaking and fracturing. Possible excavation applications included: canals, harbors, highway and railroad cuts through mountains, open pit mining, construction of dams, and other quarry and construction-related projects. Underground nuclear explosion applications included: stimulation of natural gas production, preparation of leachable ore bodies for in situ leaching, creation of underground zones of fractured oil shale for in situ retorting, and formation of underground natural gas and petroleum storage reservoirs.

None

2012-04-22T23:59:59.000Z

18

E-Print Network 3.0 - atomic bombs estimates Sample Search Results  

NLE Websites -- All DOE Office Websites (Extended Search)

for CO2 with recent bomb C measurements Summary: smaller than estimates using global ocean inventories of either natural or bomb-produced radiocarbon (21... , a dimensionless...

19

Seeing the Light: Visibility of the July '45 Trinity Atomic Bomb Test from the Inner Solar System  

Science Journals Connector (OSTI)

In his The Making of the Atomic Bomb Richard Rhodes remarks of the July 16 1945 Trinity atomic bomb test in New Mexico that “had astronomers been watching they could have seen it reflected from the moon literal moonshine ” an allusion to Ernest Rutherford's famous dismissal of the prospect of atomic energy.1 Investigating this impressive claim makes for a nice exercise in exploring astronomical magnitudes and leads to other intriguing questions: Just how bright would the explosion have appeared to an observer on the Moon say as compared to Venus? What about an observer on Mars or otherwise located in the solar system? What fraction of the bomb's yield was in the form of visible light?

B. Cameron Reed

2006-01-01T23:59:59.000Z

20

Relationship between Radiation Exposure and Risk of Second Primary Cancers among Atomic Bomb Survivors  

Science Journals Connector (OSTI)

...Welford, Department of Radiation Oncology, Case Western Reserve...case.edu 1 Department of Radiation Oncology, Case Western Reserve...Ohio. 2 Department of Radiation Oncology, Osaka University, Osaka, Japan. 3 School of Applied Sciences...

Christopher I. Li; Nobuo Nishi; Jean A. McDougall; Erin O. Semmens; Hiromi Sugiyama; Midori Soda; Ritsu Sakata; Mikiko Hayashi; Fumiyoshi Kasagi; Akihiko Suyama; Kiyohiko Mabuchi; Scott Davis; Kazunori Kodama; and Kenneth J. Kopecky

2010-09-15T23:59:59.000Z

Note: This page contains sample records for the topic "atomic bomb survivors" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

How radiation exposure affects immunogenetical risk of stomach cancer among atomic-bomb survivors  

Science Journals Connector (OSTI)

...Targeted alpha-Particle Radiation Therapy Kwamena E. Baidoo...comparison of the structure of radiation oncology in the United States and Japan.Int J Radiat Oncol Biol...FAQs/Fast-Facts-About-Radiation-Therapy/Index.aspx...

Tomonori Hayashi; Kazue Imai; Yoichiro Kusunoki; Kei Nakachi; and Eiichi Tahara

2005-05-01T23:59:59.000Z

22

Cancer risk at low doses of ionizing radiation: artificial neural networks inference from atomic bomb survivors  

Science Journals Connector (OSTI)

......with low linear energy transfer (LET...Obviously, the challenge of understanding...but the stable integration of viral DNA...activation should be sustainable for a long period...SA. Directed integration of viral DNA...adeno-associated virus DNA integration. Proc Natl...high linear energy transfer ionizing......

Masao S. Sasaki; Akira Tachibana; Shunichi Takeda

2014-05-01T23:59:59.000Z

23

External Radiation in Dolon Village Due to Local Fallout from the First USSR Atomic Bomb Test in 1949  

Science Journals Connector (OSTI)

......Dolon. According to the observation of atomic bomb tests at the Nevada test site, USA,11) off-site contribution of neutron-capture...m2 of 137 Cs. Based on observation around the Nevada test site, Hicks reported fractionation such that half of......

Tetsuji Imanaka; Satoshi Fukutani; Masayoshi Yamamoto; Aya Sakaguchi; Masaharu Hoshi

2006-02-01T23:59:59.000Z

24

RET/PTC Rearrangements Preferentially Occurred in Papillary Thyroid Cancer among Atomic Bomb Survivors Exposed to High Radiation Dose  

Science Journals Connector (OSTI)

...Molecular Epidemiology, Radiation Effects Research Foundation...Hiroshima 732-0815, Japan. Phone: 81-82-261-3169...an important role in radiation-associated thyroid...Molecular Epidemiology, Radiation Effects Research Foundation...Hiroshima 732-0815, Japan. hamatani@rerf...

Kiyohiro Hamatani; Hidetaka Eguchi; Reiko Ito; Mayumi Mukai; Keiko Takahashi; Masataka Taga; Kazue Imai; John Cologne; Midori Soda; Koji Arihiro; Megumu Fujihara; Kuniko Abe; Tomayoshi Hayashi; Masahiro Nakashima; Ichiro Sekine; Wataru Yasui; Yuzo Hayashi; and Kei Nakachi

2008-09-01T23:59:59.000Z

25

Liver Cancer in Atomic-bomb Survivors: Histological Characteristics and Relationships to Radiation and Hepatitis B and C Viruses  

Science Journals Connector (OSTI)

......the Semipalatinsk nuclear test site in Kazakhstan, where 37,200 residents received exposures...Placek, V. and Kunz, E. (1993) Radon exposure and cancers other than lung cancer...Samet, J.M. and Yao, S.X. (1995) Radon and cancers other than lung cancer in......

Toshiyuki Fukuhara; Gerald B. Sharp; Terumi Mizuno; Hideyo Itakura; Masami Yamamoto; Masayoshi Tokunaga; Shoji Tokuoka; John B. Cologne; Yasuyuki Fujita; Midori Soda; Kiyohiko Mabuchi

2001-06-01T23:59:59.000Z

26

BOMB THREAT CALL PROCEDURES  

E-Print Network (OSTI)

THREAT CALL PROCEDURES BOMB THREAT CHECKLIST Date: Time: Time Caller Phone Number Where Hung Up: Call Received:Most bomb threats are received by phone. Bomb threats are serious until proven otherwise. Act threat is received by phone: 1. Remain calm. Keep the caller on the line for as long as possible. DO

Guo, Ting

27

BOMB THREAT CALL PROCEDURES  

E-Print Network (OSTI)

BOMB THREAT CALL PROCEDURES WHO TO CONTACT (select one) · Follow your local guidelines · Federal Protective Service (FPS) Police 1-877-4-FPS-411 (1-877-437-7411) · 911 Most bomb threats are received by phone. Bomb threats are serious until proven otherwise. Act quickly, but remain calm and obtain

Boyce, Richard L.

28

BOMB THREATS What should I know about bomb threats?  

E-Print Network (OSTI)

BOMB THREATS What should I know about bomb threats? Goals of a Bomb Threat: Motivation and goals for making a bomb threat usually comes from one of two goals: The Hoax Caller: The most frequent goal of the threat to minimize personal injuries or property damage. The caller may be the person placing the bomb

Fernandez, Eduardo

29

Truman's decision to drop the bomb to be discussed at 70th anniversary  

NLE Websites -- All DOE Office Websites (Extended Search)

70th anniversary lecture July 10 about Truman, bomb 70th anniversary lecture July 10 about Truman, bomb Truman's decision to drop the bomb to be discussed at 70th anniversary lecture July 10 Noel Pugach will discuss Truman's decision to drop atomic bombs on Japanese cities and explain how and why he made it July 3, 2013 70th anniversary lecture July 10 about Truman, bomb Noel Pugach will discuss Truman's decision to drop atomic bombs on Japanese cities and explain how and why he made it Contact Nick Njegomir Communications Office (505) 667-5679 Email "Harry S. Truman considered the use of the atomic bomb on Japan among the most important and consequential actions of his presidency. Historians and journalists have concurred in that judgment, though some have condemned it," Pugach said. Truman's decision to drop the bomb to be discussed at 70th anniversary

30

BOMB THREATS What should I know about bomb threats?  

E-Print Network (OSTI)

BOMB THREATS What should I know about bomb threats? Goals of a Bomb Threat: Motivation and goals for making a bomb threat usually comes from one of two goals: The Hoax Caller: The most frequent goal to warn of the threat to minimize personal injuries or property damage. The caller may be the person

Fernandez, Eduardo

31

BOMB THREATS What should I know about bomb threats?  

E-Print Network (OSTI)

BOMB THREATS What should I know about bomb threats? Goals of a Bomb Threat · The Hoax Caller and goals for making a bomb threat usually comes from one of two goals: · The Credible Caller: The caller or she wants to warn of the threat to minimize personal injuries or property damage. The caller may

Fernandez, Eduardo

32

Bomb calorimetry: The energy content of pizza  

Science Journals Connector (OSTI)

Bomb calorimetry: The energy content of pizza ... Determining the energy content and percent protein of pizza using bomb calorimetry. ...

Roland P. Stout; Faith E. Nettleton; Lynn M. Price

1985-01-01T23:59:59.000Z

33

Bomb threat There are two types of Bomb Threats  

E-Print Network (OSTI)

v Bomb threat There are two types of Bomb Threats: 1. Specific Information/location will be given about the device, or a suspicious item and/or location. Specific Threat - On a landline Dial 6111, state you have received a "SPecific BOmB threat". If possible recall exact wording of threat. 2. Non

Hickman, Mark

34

Manhattan Project: Debate Over How to Use the Bomb, 1945  

Office of Scientific and Technical Information (OSTI)

Ernest Lawrence, Arthur Compton, Vannevar Bush, James Conant, Karl Compton, and Alfred Loomis, Berkeley, 1940 DEBATE OVER HOW TO USE THE BOMB Ernest Lawrence, Arthur Compton, Vannevar Bush, James Conant, Karl Compton, and Alfred Loomis, Berkeley, 1940 DEBATE OVER HOW TO USE THE BOMB (Washington, D.C., Late Spring 1945) Events > Dawn of the Atomic Era, 1945 The War Enters Its Final Phase, 1945 Debate Over How to Use the Bomb, Late Spring 1945 The Trinity Test, July 16, 1945 Safety and the Trinity Test, July 1945 Evaluations of Trinity, July 1945 Potsdam and the Final Decision to Bomb, July 1945 The Atomic Bombing of Hiroshima, August 6, 1945 The Atomic Bombing of Nagasaki, August 9, 1945 Japan Surrenders, August 10-15, 1945 The Manhattan Project and the Second World War, 1939-1945 J. Robert Oppenheimer, Enrico Fermi, and Ernest Lawrence In early May 1945, Secretary of War Henry L. Stimson, with the approval of President Harry S. Truman, formed an Interim Committee of top officials charged with recommending the proper use of atomic weapons in wartime and developing a position for the United States on postwar atomic policy. Stimson headed the advisory group composed of Vannevar Bush, James Conant, Karl T. Compton, Under Secretary of the Navy Ralph A. Bard, Assistant Secretary of State William L. Clayton, and future Secretary of State James F. Byrnes. Robert Oppenheimer, Enrico Fermi, Arthur Compton, and Ernest Lawrence served as scientific advisors (the Scientific Panel), while General George Marshall represented the military. The committee met on May 31 and then again the next day with leaders from the business side of the Manhattan Project, including Walter S. Carpenter of DuPont, James C. White of Tennessee Eastman, George H. Bucher of Westinghouse, and James A. Rafferty of Union Carbide.

35

Microsoft PowerPoint - Powerpoint_Web DIrty Bomb.ppt [Compatibility Mode]  

NLE Websites -- All DOE Office Websites (Extended Search)

Radioactive Weapons Radioactive Weapons * Atomic bombs, such as those dropped over Japan in World War II, involve nuclear reactions and produce a sudden intense radiation exposure and large amounts of radiation exposure and large amounts of radiation contamination. * "Dirty bombs" are regular bombs which do not involve nuclear reactions, but contain radioactive material which can be dispersed by the explosion of the bomb. y p These weapons are NOT the same! Even though both contain radioactive material, the amount of the damage and exposure , g p they produce are different by many orders of magnitude. ATOMIC BOMB Radioactive materials are mixed with High initial neutron and gamma radiation Blast can wipe out square miles area Radioactive materials are mixed with debris which comes up from the blast

36

Most bomb threats are received by phone. Bomb threats are serious until proven otherwise. Act  

E-Print Network (OSTI)

Most bomb threats are received by phone. Bomb threats are serious until proven otherwise. Act quickly, but remain calm and obtain information with the checklist on this card. BOMB THREAT CALL PROCEDURE If a bomb threat is received by phone: Remain calm. Keep the caller on the line for as long

Slatton, Clint

37

Fallout: New H-Bomb Peril?  

Science Journals Connector (OSTI)

The bright flashes in the morning sky came from a "thermonuclear device," the A-bomb's big brother. ...

1955-02-28T23:59:59.000Z

38

Radiation Sensitivity of Leukemic Progenitor Cells in Acute Nonlymphocytic Leukemia  

Science Journals Connector (OSTI)

...Foundation, Hiroshima, Japan; 2Hiroshima University...Dentistry, Hiroshima, Japan. Background: Epidemiological...A-bomb) survivors by the Radiation Effects Research Foundation...distal colorectum to radiation exposure. Citation Format...atomic bomb survivors in Japan. [abstract]. In...

Keiya Ozawa; Yasusada Miura; Toshio Suda; Kazuo Motoyoshi; and Fumimaro Takaku

1983-05-01T23:59:59.000Z

39

Americans as Survivors  

Science Journals Connector (OSTI)

...and Vietnam: both are seen as unwinnable counterinsurgencies with unclear goals carried out in alien, hostile environments against enemies who are invisible and highly dangerous. A small but growing group of veterans of Iraq who embrace these alternative meanings have modeled themselves on the antiwar... Physicians have always been concerned with how people survive trauma, writes Dr. Robert Jay Lifton. Less noted has been the experience of Americans as survivors of violent collective trauma. However, responses can be both painful and a potential source of ...

Lifton R.J.

2005-06-02T23:59:59.000Z

40

Instead of splitting the atom --the  

E-Print Network (OSTI)

the atomic bomb and led to civilian nuclear plants - - ITER seeks to harness nuclear fusion: the power the atomic bomb and led to civilian nuclear plants -- ITER seeks to harness nuclear fusion: the power a few minutes and input/yield ratios remain low. That compares with ITER's goal of producing sustained

Note: This page contains sample records for the topic "atomic bomb survivors" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Manhattan Project: Potsdam and the Final Decision to Use the Bomb, July  

Office of Scientific and Technical Information (OSTI)

Joseph Stalin, Harry Truman, and Winston Churchill at the Potsdam Conference, July 1945 POTSDAM AND THE FINAL DECISION TO USE THE BOMB Joseph Stalin, Harry Truman, and Winston Churchill at the Potsdam Conference, July 1945 POTSDAM AND THE FINAL DECISION TO USE THE BOMB (Potsdam, Germany, July 1945) Events > Dawn of the Atomic Era, 1945 The War Enters Its Final Phase, 1945 Debate Over How to Use the Bomb, Late Spring 1945 The Trinity Test, July 16, 1945 Safety and the Trinity Test, July 1945 Evaluations of Trinity, July 1945 Potsdam and the Final Decision to Bomb, July 1945 The Atomic Bombing of Hiroshima, August 6, 1945 The Atomic Bombing of Nagasaki, August 9, 1945 Japan Surrenders, August 10-15, 1945 The Manhattan Project and the Second World War, 1939-1945 Potsdam, July 19, 1945. Truman wrote a note on the back of the photograph in which he states incorrectly that Stalin did not know about the atomic bomb. After President Harry S. Truman received word of the success of the Trinity test, his need for the help of the Soviet Union in the war against Japan was greatly diminished. The Soviet leader, Joseph Stalin, had promised to join the war against Japan by August 15th. Truman and his advisors now were not sure they wanted this help. If use of the atomic bomb made victory possible without an invasion, then accepting Soviet help would only invite them into the discussions regarding the postwar fate of Japan. During the second week of Allied deliberations at Potsdam, on the evening of July 24, 1945, Truman approached Stalin without an interpreter and, as casually as he could, told him that the United States had a "new weapon of unusual destructive force." Stalin showed little interest, replying only that he hoped the United States would make "good use of it against the Japanese." The reason for Stalin's composure became clear later: Soviet intelligence had been receiving information about the atomic bomb program since fall 1941.

42

Dismantling the Final B53 Bomb | Department of Energy  

Energy Savers (EERE)

Dismantling the Final B53 Bomb Dismantling the Final B53 Bomb October 25, 2011 - 5:39pm Addthis Two Pantex Plant employees examine the final B53 bomb prior to its dismantling. |...

43

 EARLY BOMB RADIOCARBON DETECTED IN PALAU ARCHIPELAGO CORALS  

E-Print Network (OSTI)

bomb 14 C from surface thermonuclear weapons testing in theinjection of 14 C by thermonuclear bomb testing occurredwhere the largest US thermonuclear weapons test occurred on

Glynn, Danielle S; Druffel, Ellen R.M.; Griffin, Sheila; Dunbar, Robert; Osborne, Michael; Sanchez-Cabeza, Joan Albert

2013-01-01T23:59:59.000Z

44

Early Bomb Radiocarbon Detected in Palau Archipelago Corals  

E-Print Network (OSTI)

bomb 14 C from surface thermonuclear weapons testing in theinjection of 14 C by thermonuclear bomb testing occurredwhere the largest US thermonuclear weapons test occurred on

Glynn, Danielle; Druffel, Ellen; Griffin, Sheila; Dunbar, R. B.; Osbourne, M.; Sanchez-Cabeza, J.-A.

2013-01-01T23:59:59.000Z

45

BOMB THREAT CHECKLIST QUESTIONS TO ASK  

E-Print Network (OSTI)

BOMB THREAT CHECKLIST QUESTIONS TO ASK: 1. When is the bomb going to explode? 2. Where is it right ___Clearing Throat ___Laughter ___Deep Breathing __Crying ___Cracking voice __Normal ___Disguised THREAT __Foul ___Taped __Message read by threat maker __Irrational If voice is familiar, who did it sound like

Cui, Yan

46

Bomb threats hit Texas petrochemical plants  

Science Journals Connector (OSTI)

A recent rash of bomb threats has plagued petrochemical plants and refineries in the Houston area.No real bombs have been found. But plant managers are concerned that if law enforcement officials do not soon find those involved and discourage others, ...

ANN THAYER

1996-04-29T23:59:59.000Z

47

Manhattan Project: A Tentative Decision to Build the Bomb<!--Include title  

Office of Scientific and Technical Information (OSTI)

President Franklin Roosevelt's note to Vannevar Bush giving Bush the tentative go-ahead to build the atomic bomb. A TENTATIVE DECISION TO BUILD THE BOMB President Franklin Roosevelt's note to Vannevar Bush giving Bush the tentative go-ahead to build the atomic bomb. A TENTATIVE DECISION TO BUILD THE BOMB Washington, D.C.(1941-1942) Events > Early Government Support, 1939-1942 Einstein's Letter, 1939 Early Uranium Research, 1939-1941 Piles and Plutonium, 1939-1941 Reorganization and Acceleration, 1940-1941 The MAUD Report, 1941 A Tentative Decision to Build the Bomb, 1941-1942 Vannevar Bush moved swiftly to take advantage of the positive MAUD Report. Without waiting for Arthur Compton's latest committee to finish its work confirming the MAUD Committee's conclusions, Bush on October 9, 1941, met with President Franklin D. Roosevelt and Vice President Henry A. Wallace (who had been briefed on uranium research in July). Bush summarized the British findings, discussed cost and duration of a bomb project, and emphasized the uncertainty of the situation. He also received the President's permission to explore construction needs with the Army. Roosevelt instructed him to move as quickly as possible but not to go beyond research and development. Bush, then, was to find out if a bomb could be built and at what cost but not to proceed to the production stage without further presidential authorization. Roosevelt indicated that he could find a way to finance the project and asked Bush to draft a letter so that the British government could be approached "at the top.

48

Manhattan Project: The Uranium Path to the Bomb, 1942-1944  

Office of Scientific and Technical Information (OSTI)

Alpha Racetrack, Y-12 Electromagnetic Plant, Oak Ridge THE URANIUM PATH TO THE BOMB Alpha Racetrack, Y-12 Electromagnetic Plant, Oak Ridge THE URANIUM PATH TO THE BOMB (1942-1944) Events > The Uranium Path to the Bomb, 1942-1944 Y-12: Design, 1942-1943 Y-12: Construction, 1943 Y-12: Operation, 1943-1944 Working K-25 into the Mix, 1943-1944 The Navy and Thermal Diffusion, 1944 The uranium path to the atomic bomb ran through Oak Ridge, Tennessee. Only if the new plants built at Oak Ridge produced enough enriched uranium-235 would a uranium bomb be possible. General Groves placed two methods into production: 1) electromagnetic, based on the principle that charged particles of the lighter isotope would be deflected more when passing through a magnetic field; and 2) gaseous diffusion, based on the principle that molecules of the lighter isotope, uranium-235, would pass more readily through a porous barrier. Full-scale electromagnetic and gaseous diffusion production plants were built at Oak Ridge at sites designated as "Y-12" and "K-25", respectively.

49

Bomb squads saddle-up for Robot Rodeo  

NLE Websites -- All DOE Office Websites (Extended Search)

Bomb squads saddle-up for Robot Rodeo Bomb squads saddle-up for Robot Rodeo Rodeo events include a fun obstacle course and tests of skill, finesse, and endurance for both robot and...

50

50th Anniversary of U.S.- Japan Health Studies | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

of sessions on risk estimation, noncancer end points, molecular and genetic basis of cancer, dosimetry, and studies on offspring of the atomic bomb survivors, RERF scientists...

51

BOMB THREAT PLACE THIS CARD UNDER YOUR TELEPHONE  

E-Print Network (OSTI)

BOMB THREAT PLACE THIS CARD UNDER YOUR TELEPHONE QUESTIONS TO ASK: 1. When is the bomb going? EXACT WORDING OF THE THREAT: Sex of caller: Race: Age: Number at which call received: Length of call: Check Caller ID - *69: Record caller's number: Time: Date: IMMEDIATELY REPORT BOMB THREATS TO

Slatton, Clint

52

Manhattan Project: Early Bomb Design, Los Alamos: Laboratory, 1943-1944  

Office of Scientific and Technical Information (OSTI)

Little Boy at Tinian Island, August 1945 EARLY BOMB DESIGN Little Boy at Tinian Island, August 1945 EARLY BOMB DESIGN (Los Alamos: Laboratory, 1943-1944) Events > Bringing it All Together, 1942-1945 Establishing Los Alamos, 1942-1943 Early Bomb Design, 1943-1944 Basic Research at Los Alamos, 1943-1944 Implosion Becomes a Necessity, 1944 Oak Ridge and Hanford Come Through, 1944-1945 Final Bomb Design, 1944-1945 Atomic Rivals and the ALSOS Mission, 1938-1945 Espionage and the Manhattan Project, 1940-1945 Early work on the design of the atomic bomb began even as scientists continued to arrive at Los Alamos throughout 1943. The properties of uranium were reasonably well understood, those of plutonium less so, and knowledge of fission explosions entirely theoretical. That 2.2 secondary neutrons were produced when uranium-235 fissioned was accepted, but while Glenn Seaborg's team had proven in March 1941 that plutonium underwent neutron-induced fission, it was not known yet if plutonium released secondary neutrons during bombardment. Further, the exact sizes of the "cross sections" of various fissionable substances had yet to be determined in experiments using the various particle accelerators then being shipped to Los Alamos. The theoretical consensus was that fission Fission chain reaction chain reactions (left) did take place with sufficient speed to produce powerful releases of energy (and not simply result in the explosion of the critical mass itself), but only experiments could test this theory. The optimum size of the critical mass remained to be established, as did the optimum shape. When enough data were gathered to establish optimum critical mass, optimum effective mass still had to be determined. That is, it was not enough simply to start a chain reaction in a critical mass; it was necessary to start one in a mass that would release the greatest possible amount of energy before it was destroyed in the explosion.

53

The 'secureplan' bomb utility: A PC-based analytic tool for bomb defense  

SciTech Connect

This paper illustrates a recently developed, PC-based software system for simulating the effects of an infinite variety of hypothetical bomb blasts on structures and personnel in the immediate vicinity of such blasts. The system incorporates two basic rectangular geometries in which blast assessments can be made - an external configuration (highly vented) and an internal configuration (vented and unvented). A variety of explosives can be used - each is translated to an equivalent TNT weight. Provisions in the program account for bomb cases (person, satchel, case and vehicle), mixes of explosives and shrapnel aggregates and detonation altitudes. The software permits architects, engineers, security personnel and facility managers, without specific knowledge of explosives, to incorporate realistic construction hardening, screening programs, barriers and stand-off provisions in the design and/or operation of diverse facilities. System outputs - generally represented as peak incident or reflected overpressure or impulses - are both graphic and analytic and integrate damage threshold data for common construction materials including window glazing. The effects of bomb blasts on humans is estimated in terms of temporary and permanent hearing damage, lung damage (lethality) and whole body translation injury. The software system has been used in the field in providing bomb defense services to a number of commercial clients since July of 1986. In addition to the design of siting, screening and hardening components of bomb defense programs, the software has proven very useful in post-incident analysis and repair scenarios and as a teaching tool for bomb defense training.

Massa, R.J.

1987-07-01T23:59:59.000Z

54

First Plutonium Bomb Successfully Tested | National Nuclear Security  

NLE Websites -- All DOE Office Websites (Extended Search)

Plutonium Bomb Successfully Tested | National Nuclear Security Plutonium Bomb Successfully Tested | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Home > About Us > Our History > NNSA Timeline > First Plutonium Bomb Successfully Tested First Plutonium Bomb Successfully Tested July 16, 1945 Los Alamos, NM First Plutonium Bomb Successfully Tested

55

First Plutonium Bomb Successfully Tested | National Nuclear Security  

National Nuclear Security Administration (NNSA)

Plutonium Bomb Successfully Tested | National Nuclear Security Plutonium Bomb Successfully Tested | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Home > About Us > Our History > NNSA Timeline > First Plutonium Bomb Successfully Tested First Plutonium Bomb Successfully Tested July 16, 1945 Los Alamos, NM First Plutonium Bomb Successfully Tested

56

Manhattan Project: The Plutonium Path to the Bomb, 1942-1944  

Office of Scientific and Technical Information (OSTI)

Painting of CP-1 going critical THE PLUTONIUM PATH TO THE BOMB Painting of CP-1 going critical THE PLUTONIUM PATH TO THE BOMB (1942-1944) Events > The Plutonium Path to the Bomb, 1942-1944 Production Reactor (Pile) Design, 1942 DuPont and Hanford, 1942 CP-1 Goes Critical, December 2, 1942 Seaborg and Plutonium Chemistry, 1942-1944 Final Reactor Design and X-10, 1942-1943 Hanford Becomes Operational, 1943-1944 Plutonium, produced in a uranium-fueled reactor (pile), was the second path taken toward achieving an atomic bomb. Design work on a full-scale plutonium production reactor began at the Met Lab in June 1942. Scientists at the Met Lab had the technical expertise to design a production pile, but construction and management on an industrial scale required an outside contractor. General Groves convinced the DuPont Corporation to become the primary contractor for plutonium production. With input from the Met Lab and DuPont, Groves selected a site at Hanford, Washington, on the Columbia River, to build the full-scale production reactors.

57

Manhattan Project: Final Bomb Design, Los Alamos: Laboratory, 1944-1945  

Office of Scientific and Technical Information (OSTI)

The first 0.11 seconds of the nuclear age, Trinity, July 16, 1945. FINAL BOMB DESIGN The first 0.11 seconds of the nuclear age, Trinity, July 16, 1945. FINAL BOMB DESIGN (Los Alamos: Laboratory, 1944-1945) Events > Bringing It All Together, 1942-1945 Establishing Los Alamos, 1942-1943 Early Bomb Design, 1943-1944 Basic Research at Los Alamos, 1943-1944 Implosion Becomes a Necessity, 1944 Oak Ridge and Hanford Come Through, 1944-1945 Final Bomb Design, 1944-1945 Atomic Rivals and the ALSOS Mission, 1938-1945 Espionage and the Manhattan Project, 1940-1945 American troops approaching the beach, D-Day, June 6, 1944. Late in 1944, Los Alamos began to shift from research to development and bomb production. Increased production at Oak Ridge and Hanford seemed to promise that enough plutonium and enriched uranium would be available for at least one bomb using each. Germany no longer was the intended primary target. The war in Europe (left) appeared to be entering its final phase, and evidence uncovered by the ALSOS mission in November 1944 indicated that the German atomic program had not gone beyond the research phase. Already by summer 1944, Groves and his advisers had turned their sights toward Japan. The atomic bomb would justify the years of effort, including both the vast expenditures and the judgment of everyone responsible, by bringing the war in the Pacific to a fiery end. J. Robert Oppenheimer Ongoing problems continued to complicate the efforts of Robert Oppenheimer (right) to finalize bomb design. Foremost among these were continuing personnel shortages, particularly of physicists, and supply difficulties. The procurement system, designed to protect the secrecy of the Los Alamos project, led to frustrating delays and, when Herb Lehr, SED, holding the Gadget's core, July 1945. combined with persistent late war shortages, proved a constant headache. The lack of contact between the remote laboratory and its supply sources exacerbated the problem, as did the relative lack of experience the academic scientists had with logistical matters. Leslie Groves and James Conant were determined not to let mundane problems compromise the bomb effort, and in fall 1944 they made several changes to prevent this possibility. Conant shipped as many scientists as could be spared from the Met Lab and Oak Ridge to Los Alamos, hired every civilian machinist he could lay his hands on, and arranged for Army enlisted men to supplement the work force (these GIs were known as SEDS ("Special Engineering Detachment"). Hartley Rowe, an experienced industrial engineer, provided help in easing the transition from research to production. Los Alamos also arranged for a rocket research team at the California Institute of Technology to aid in procurement, test fuses, and contribute to component development. These changes kept Los Alamos on track as design work reached its final stages.

58

Eligibility: Cancer Survivor ages 35-75  

E-Print Network (OSTI)

Eligibility: · Cancer Survivor ages 35-75 · Patient has completed treatment within last two years for non-metastic solid tumor · Patient's cancer is currently considered stable or in remission · At least. Please contact Missy Buchanan 415-353-7019 for more information. Helen Diller Family Comprehensive Cancer

Walter, Peter

59

RADIATION RESEARCH 145,501-507 (1996) 0033-7587196 $5.00  

E-Print Network (OSTI)

range of most interest for risk estimation for low-dose radiation (-900-1,450 m), predictions Biological Evidence for a Significant Neutron Dose to Survivors of the Hiroshima Atomic Bomb. Radiat. Res-bomb survivor cohorts in radiation risk estimation, dosimetry for the sur- vivors at Hiroshima and Nagasaki

Brenner, David Jonathan

60

U. S. to Build More Hydrogen Bombs  

Science Journals Connector (OSTI)

Chairman Lewis L. Strauss of the Atomic Energy Commission says President Eisenhower has given the goahead signal for "greatly increased" production of thermonuclear weapons. ... The stockpile, he indicates, will contain thermonuclear weapons of different designs and power. ...

1954-04-19T23:59:59.000Z

Note: This page contains sample records for the topic "atomic bomb survivors" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

B53 Nuclear Bomb Dismantlement | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

B53 Nuclear Bomb Dismantlement | National Nuclear Security Administration B53 Nuclear Bomb Dismantlement | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Home > Media Room > Video Gallery > B53 Nuclear Bomb Dismantlement B53 Nuclear Bomb Dismantlement B53 Nuclear Bomb Dismantlement The elimination of the B53 by Department of Energy's National Nuclear Security Administration (NNSA) is consistent with the goal President Obama announced in his April 2009 Prague speech to reduce the number of nuclear weapons. The President said, "We will reduce the role of nuclear weapons in our national security strategy, and urge others to do the same." The dismantlement of the last remaining B53 ensures that the system will never again be part of the U.S. nuclear weapons stockpile. As a key part of its national security mission, NNSA is actively responsible for safely dismantling weapons that are no longer needed, and disposing of the excess material and components.

62

Response to Bomb Threats Page 1 of 3 Virginia Polytechnic Institute and State University No. 5600 Rev.: 4  

E-Print Network (OSTI)

Response to Bomb Threats Page 1 of 3 Virginia Polytechnic Institute and State University No. 5600 __________________________________________________________________________________ Subject: Response to Bomb Threats ............................................................................................................................................................1 3.1 Telephoned Threat

Virginia Tech

63

E-Print Network 3.0 - american cancer survivors Sample Search...  

NLE Websites -- All DOE Office Websites (Extended Search)

Powered by Explorit Topic List Advanced Search Sample search results for: american cancer survivors Page: << < 1 2 3 4 5 > >> 1 Psychosocial Adjustment Among Cancer Survivors:...

64

E-Print Network 3.0 - adult cancer survivors Sample Search Results  

NLE Websites -- All DOE Office Websites (Extended Search)

Search Powered by Explorit Topic List Advanced Search Sample search results for: adult cancer survivors Page: << < 1 2 3 4 5 > >> 1 Psychosocial Adjustment Among Cancer Survivors:...

65

E-Print Network 3.0 - adolescent cancer survivors Sample Search...  

NLE Websites -- All DOE Office Websites (Extended Search)

cancer survivors Search Powered by Explorit Topic List Advanced Search Sample search results for: adolescent cancer survivors Page: << < 1 2 3 4 5 > >> 1 Psychooncology . Author...

66

Manhattan Project: Dawn of the Atomic Era, 1945  

Office of Scientific and Technical Information (OSTI)

Trinity, July 16, 1945 DAWN OF THE ATOMIC ERA (1945) Events The War Enters Its Final Phase, 1945 Debate Over How to Use the Bomb, Late Spring 1945 The Trinity Test, July 16, 1945 Safety and the Trinity Test, July 1945 Evaluations of Trinity, July 1945 Potsdam and the Final Decision to Bomb, July 1945 The Atomic Bombing of Hiroshima, August 6, 1945 The Atomic Bombing of Nagasaki, August 9, 1945 Japan Surrenders, August 10-15, 1945 The Manhattan Project and the Second World War, 1939-1945 As the war entered its final phase, the Manhattan Project became an increasingly important and controversial element in American strategy. Debate over how to use the bomb began in earnest in early summer of 1945. The Trinity atomic test of July 16 (right) confirmed that the stakes for this decision were very high. With a blast equivalent of approximately 21 kilotons of TNT, the test explosion was greater than had been predicted, and the dispersal of radioactive fallout following the test made safety something of a near thing. News of the success at Trinity reached President Harry S. Truman at the Potsdam Conference.

67

Global Warming Time Bomb:* Actions Needed to Avert Disaster  

E-Print Network (OSTI)

Global Warming Time Bomb:* Actions Needed to Avert Disaster James Hansen 26 October 2009 Club statements relating to policy are personal opinion Global Warming Status 1. Knowledge Gap Between - What Benefits of Solution Despite the publicity that global warming has received, there is a large gap between

Hansen, James E.

68

Smart Bombs: Air Warfare Undergoes a Reluctant Revolution  

Science Journals Connector (OSTI)

...sig-nificant. The Russians have larger, but less accurate, warheads and are not ex-pected to have a good supply of MIRV's for...destruction of the Thanh Hoa bridge in North Vietnam, which stood intact under repeated bombing raids from 1965-68. Aviation Week...

Robert Gillette

1972-06-09T23:59:59.000Z

69

BomB ThreaT Assume threat is real  

E-Print Network (OSTI)

Call 911 BomB ThreaT · Assume threat is real · Evacuate area explosion/ Fire · Activate fire alarm or office, do not let the person in · Do not block person's access to an exit · Move away from the threat

Alpay, S. Pamir

70

E-Print Network 3.0 - acute x-ray exposure Sample Search Results  

NLE Websites -- All DOE Office Websites (Extended Search)

late effects of acute ionizing radiation exposures in atomic bomb survivors" initiated October 2009... X-ray Yes Yes No No Retesting required 2 X-ray Yes Yes No No Retesting...

71

The Polyamine Catabolic Enzyme SAT1 Modulates Tumorigenesis and Radiation Response in GBM  

Science Journals Connector (OSTI)

...Introduction Exposure to ionizing radiation is a well-established...moderate to high-dose radiation exposure. Examples include...atomic bomb survivors in Japan, women treated with repeated exposure to radiation from fluoroscopic chest...

Adina Brett-Morris; Bradley M. Wright; Yuji Seo; Vinay Pasupuleti; Junran Zhang; Jun Lu; Raffaella Spina; Eli E. Bar; Maneesh Gujrati; Rebecca Schur; Zheng-Rong Lu; and Scott M. Welford

2014-12-01T23:59:59.000Z

72

Cost effective analysis comparing the small diameter bomb and the joint standoff weapon (A+ Variant) .  

E-Print Network (OSTI)

??This MBA project investigated and analyzed the cost effectiveness of implementing the Joint Standoff Weapon A+ (JSOW A+) variant versus the Small Diameter Bomb (SDB).… (more)

Stevens, Brett

2004-01-01T23:59:59.000Z

73

E-Print Network 3.0 - aya cancer survivors Sample Search Results  

NLE Websites -- All DOE Office Websites (Extended Search)

cancer survivors Search Powered by Explorit Topic List Advanced Search Sample search results for: aya cancer survivors Page: << < 1 2 3 4 5 > >> 1 SYN T H E S I S THE MAGAZINE OF...

74

34.07.99.M0.02 Bomb Threat Procedures Page 1 of 3 STANDARD ADMINISTRATIVE PROCEDURE  

E-Print Network (OSTI)

34.07.99.M0.02 Bomb Threat Procedures Page 1 of 3 STANDARD ADMINISTRATIVE PROCEDURE 34.07.99.M0 4, 2016 Standard Administrative Procedure Statement Any and all bomb threats are regarded seriously. 2. ADDITIONAL NOTIFICATION AND EVALUATION 2.1 Upon receipt of a bomb threat to a particular building

75

Manhattan Project: Exploring the Atom, 1919-1932  

Office of Scientific and Technical Information (OSTI)

Ernest Rutherford (and James Chadwick, on the far right) EXPLORING THE ATOM Ernest Rutherford (and James Chadwick, on the far right) EXPLORING THE ATOM (1919-1932) Events > Atomic Discoveries, 1890s-1939 A Miniature Solar System, 1890s-1919 Exploring the Atom, 1919-1932 Atomic Bombardment, 1932-1938 The Discovery of Fission, 1938-1939 Fission Comes to America, 1939 The road to the atomic bomb began in earnest in 1919 with the first artificial transmutation of an element. The New Zealander Ernest Rutherford, working in the Cavendish Laboratory at Cambridge University in England, changed several atoms of nitrogen into oxygen. The final addition to the atomic "miniature solar system" first proposed by Niels Bohr came in 1932 when James Chadwick, Rutherford's colleague at Cambridge, identified the third and final basic particle of the atom: the neutron.

76

Health Literacy and Media Preferences with Stroke Survivors  

E-Print Network (OSTI)

, increased hospitalizations and/or poor health choices. This study examined a convenient sample of 30 stroke survivors who attend a community based education program in the greater Kansas City area. To be included in the study, the participants had to have...

Schriner, Mylene Tracey

2011-04-08T23:59:59.000Z

77

A Crack Model of the Hiroshima Atomic Bomb: Explanation of the Contradiction of "Dosimetry System 1986"  

Science Journals Connector (OSTI)

......induced fission neutrons were emitted...exploded. The neutrons from Hiroshima...and lost their energy according to...Therefore the neutrons were attenuated...than the bare fission neutrons. At...fission neutron spectrum, (2) known...these factors, thermal- and first......

Masaharu Hoshi; Satoru Endo; Jun Takada; Masayori Ishikawa; Yumiko Nitta; Kazuo Iwatani; Takamitsu Oka; Shoichiro Fujita; Kiyoshi Shizuma; Hiromi Hasai

1999-03-01T23:59:59.000Z

78

Genetic studies at the Atomic Bomb Casualty Commission–Radiation Effects Research Foundation: 1946–1997  

Science Journals Connector (OSTI)

...inevitable, and studies to anticipate worker’s health hazards were undertaken. At that...data obtained by W. L. Russell at Oak Ridge (21, 22), yielding one of the lower estimates...in the course of the experiment at Oak Ridge occurred in the offspring of both...

James V. Neel

1998-01-01T23:59:59.000Z

79

Health Care Utilization by Adult Long-term Survivors of Hematopoietic Cell Transplant: Report from the Bone Marrow Transplant Survivor Study  

Science Journals Connector (OSTI)

...Cancer Research Article Research Articles Health Care Utilization by Adult Long-term...risk of long-term complications and health care needs among survivors. The aim of...was to evaluate the current status of health care utilization by long-term HCT survivors...

Sadhna M. Shankar; Andrea Carter; Can-Lan Sun; Liton Francisco; K. Scott Baker; James G. Gurney; Daniel G. Weisdorf; Stephen J. Forman; Leslie L. Robison; Marcia Grant; Smita Bhatia

2007-04-01T23:59:59.000Z

80

Manhattan Project: Atomic Rivals and the ALSOS Mission, 1938-1945  

Office of Scientific and Technical Information (OSTI)

Werner Heisenberg, the leader of the German atomic weapons program. ATOMIC RIVALS AND THE ALSOS MISSION Werner Heisenberg, the leader of the German atomic weapons program. ATOMIC RIVALS AND THE ALSOS MISSION (Germany and Japan, 1938-1945) Events > Bringing It All Together, 1942-1945 Establishing Los Alamos, 1942-1943 Early Bomb Design, 1943-1944 Basic Research at Los Alamos, 1943-1944 Implosion Becomes a Necessity, 1944 Oak Ridge and Hanford Come Through, 1944-1945 Final Bomb Design, 1944-1945 Atomic Rivals and the ALSOS Mission, 1938-1945 Espionage and the Manhattan Project, 1940-1945 For most of the Second World War, scientists and administrators of the Manhattan Project firmly believed that they were in a race with Germany to develop the atomic bomb. As it turns out, the German atomic program did not come close to developing a useable weapon. Allied planners were only able to confirm this, however, through the ALSOS intelligence mission to Europe toward the end of the war. Atomic research was also conducted in Japan, but as was suspected by the Allies, it did not get very far.

Note: This page contains sample records for the topic "atomic bomb survivors" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Fluid-filled bomb-disrupting apparatus and method  

DOE Patents (OSTI)

An apparatus and method for disarming improvised bombs are disclosed. The apparatus comprises a fluid-filled bottle or container made of plastic or another soft material which contains a fixed or adjustable, preferably sheet explosive. The charge is fired centrally at its apex and can be adjusted to propel a fluid projectile that is broad or narrow, depending upon how it is set up. In one embodiment, the sheet explosive is adjustable so as to correlate the performance of the fluid projectile to the disarming needs for the improvised explosive device (IED). Common materials such as plastic water bottles or larger containers can be used, with the sheet explosive or other explosive material configured in a general chevron-shape to target the projectile toward the target. In another embodiment, a thin disk of metal is conformably mounted with the exterior of the container and radially aligned with the direction of fire of the fluid projectile. Depending on the configuration and the amount of explosive and fluid used, a projectile is fired at the target that has sufficient energy to penetrate rigid enclosures from fairly long stand-off and yet is focused enough to be targeted to specific portions of the IED for disablement.

Cherry, Christopher R. (Albuquerque, NM)

2001-01-01T23:59:59.000Z

82

Small-Scale Structuring Of Ellerman Bombs at Solar Limb  

E-Print Network (OSTI)

Ellerman bombs (EBs) have been widely studied in recent years due to their dynamic, explosive nature and apparent links to the underlying photospheric magnetic field implying that they may be formed by magnetic reconnection in the photosphere. Despite a plethora of researches discussing the morphologies of EBs, there has been a limited investigation of how these events appear at the limb, specifically, whether they manifest as vertical extensions away from the disc. In this article, we make use of high-resolution, high-cadence observations of an AR at the solar limb, collected by the CRISP instrument, to identify EBs and infer their physical properties. The upper atmosphere is also probed using the SDO/AIA. We analyse 22 EB events evident within these data, finding that 20 appear to follow a parabolic path away from the solar surface at an average speed of 9 km s^(-1), extending away from their source by 580 km, before retreating back at a similar speed. These results show strong evidence of vertical motions ...

Nelson, C J; Doyle, J G; Freij, N; Erdélyi, R

2014-01-01T23:59:59.000Z

83

Application of Bomb Radiocarbon Chronologies to Shortfin Mako (Isurus oxyrinchus)  

SciTech Connect

There is an ongoing disagreement regarding the aging of the shortfin mako due to a difference of interpretation in the periodic deposition of vertebral growth band pairs, especially for the larger size classes. Using analysis of length-month information, tagging data, and length-frequency analysis, concluded that two band pairs were formed in the vertebral centrum every year (biannual band-pair interpretation). Cailliet et al. (1983), however, presented growth parameters based on the common assumption that one band pair forms annually (annual band-pair interpretation). Therefore, growth rates obtained by Pratt & Casey (1983) were twice that of Cailliet et al. (1983) and could lead to age discrepancies of about 15 years for maximum estimated ages on the order of 30 from the annual band-pair interpretation. Serious consequences in the population dynamics could occur for this species if inputs are based on an invalid age interpretation. The latest Fishery Management Plan (FMP) for Highly Migratory Species (HMS), for example, adopted the biannual band pair deposition hypothesis because it apparently fit the observed growth patterns best (Pacific Fishery Management Council 2003). However, the ongoing uncertainty about the aging of the shortfin mako was acknowledged and it was recommended that an endeavor to resolve this issue be made. Since 1983, five additional studies on the age and growth of the shortfin mako have been conducted (Chan 2001, Campana et al. 2002, Hsu 2003, Ribot-Carballal et al. 2005, Bishop et al. 2006). Using Marginal Increment Ratio (MIR), Hsu (2003) indicated the formation of annual translucent bands from July to September in western North Pacific Ocean shortfin makos. Using Marginal Increment Analysis (MIA) Ribot-Carballal et al. (2005) supported the annual band-pair interpretation for 109 shortfin makos collected in the eastern Pacific Ocean. Although the study provided support for annual band-pair deposition, no statistical test was performed and the number of samples for MIA analysis was insufficient for some months. Hence, unequivocal validation of shortfin mako age estimates has yet to be accomplished. Atmospheric testing of thermonuclear devices in the 1950s and 1960s effectively doubled the natural atmospheric radiocarbon ({sup 14}C). The elevated {sup 14}C levels were first recorded in 1957-58, with a peak around 1963. As a consequence, {sup 14}C entered the ocean through gas exchange with the atmosphere at the ocean surface and in terrestrial runoff. Despite variable oceanographic conditions, a worldwide rise of the bomb {sup 14}C signal entered the ocean mixed layer as dissolved inorganic carbon (DIC) in 1957-58. The large amounts of {sup 14}C released from the bomb tests produced a signature that can be followed through time, throughout the marine food web, and into deeper waters. The marked increase of radiocarbon levels was first measured in the DIC of seawater and in biogenic marine carbonates of hermatypic corals in Florida. Subsequently, this record was documented in corals from other regions and in the thallus of rhodoliths. The accumulation of radiocarbon in the hard parts of most marine organisms in the mixed layer (such as fish otoliths and bivalves) was synchronous with the coral time-series. This technique has been used to validate age estimates and longevity of numerous bony fishes to date, as well as to establish bomb radiocarbon chronologies from different oceans. In the first application of this technique to lamnoid sharks, validated annual band-pair deposition in vertebral growth bands for the porbeagle (Lamna nasus) aged up to 26 years. Radiocarbon values from samples obtained from 15 porbeagle caught in the western North Atlantic Ocean (some of which were known-age) produced a chronology similar in magnitude to the reference carbonate chronology for that region. The observed phase shift of about 3 years was attributed to different sources of carbon between vertebrae and those for otoliths, bivalves and corals. In the same study by Campana et al. (2002), a single vertebra fro

Ardizzone, D; Cailliet, G M; Natanson, L J; Andrews, A H; Kerr, L A; Brown, T A

2007-07-16T23:59:59.000Z

84

A MODEL OF THE RETRAUMATIZATION PROCESS: A META-SYNTHESIS OF CHILDHOOD SEXUAL ABUSE SURVIVORS' EXPERIENCES IN HEALTHCARE  

E-Print Network (OSTI)

Childhood sexual abuse survivors frequently report feeling retraumatized during routine healthcare encounters. The goal of this study was to develop a model to aid in understanding difficulties abuse survivors face when ...

Dallam, Stephanie J.

2010-01-28T23:59:59.000Z

85

Potential for Cardiovascular Exercise Dosing to Improve Cardiorespiratory Fitness in Breast Cancer Survivors  

E-Print Network (OSTI)

the cardiorespiratory fitness (VO2max) level and body composition (weight, BMI, % body fat) in breast cancer survivors. We reported that breast cancer survivors had a low VO2max compared to normal values in a healthy population. In addition, submaximal VO2 exercise...

Burnett, Dave

2013-05-31T23:59:59.000Z

86

Determination of Fluorine, Chlorine and Bromine in Household Products by means of Oxygen Bomb Combustion and Ion Chromatography  

Science Journals Connector (OSTI)

......K.L. Oxygen bomb combustion ion chromatography for...Determination of chlorine in coal by high performance...Determination of chlorine in coal by oxygen bomb-ion...Journal of Analytical Chemistry (2009) 37:1152-1156...chlorine-Oxygen flask combustion technique, SAC, Beijing......

Shuai Zhang; Tianbo Zhao; Jia Wang; Xiaoling Qu; Wei Chen; Yin Han

2013-01-01T23:59:59.000Z

87

Manhattan Project: Atomic Discoveries, 1890s-1939  

Office of Scientific and Technical Information (OSTI)

Excerpt from the comic book "Adventures Inside the Atom." Click on this image or visit the "Library" to view the whole comic book. ATOMIC DISCOVERIES Excerpt from the comic book "Adventures Inside the Atom." Click on this image or visit the "Library" to view the whole comic book. ATOMIC DISCOVERIES (1890s-1939) Events A Miniature Solar System, 1890s-1919 Exploring the Atom, 1919-1932 Atomic Bombardment, 1932-1938 The Discovery of Fission, 1938-1939 Fission Comes to America, 1939 Philosophers of Ancient Greece reasoned that all matter in the universe must be composed of fundamental, unchangeable, and indivisible objects, which they called "atoma" ("ατoµα"). The exact nature of these atoms remained elusive, however, despite centuries of attempts by alchemists to create a "philosopher's stone" that could transmute atoms of lead to gold, prove the Greeks wrong, and make its inventors Modern model of an atom very rich. It was only in the late 1890s and the early twentieth-century that this view of a solid atom, bouncing around the universe like a billiard ball, was replaced by an atom that resembled more a miniature solar system, its electrons orbiting around a small nucleus. Explorations into the nature of the atom from 1919 to 1932 confirmed this new model, especially with Ernest Rutherford's 1919 success in finally transmuting an atom of one substance into another and with James Chadwick's 1932 discovery of the elusive final basic particle of the atom, the neutron. From 1932 to 1938, scientists around the world learned a great deal more about atoms, primarily by bombarding the nuclei of atoms and using a variety of particle accelerators. In 1938, word came from Berlin of the most startling result of them all: the nucleus of an atom could actually be split in two, or "fissioned." This breakthrough was quickly confirmed in the United States and elsewhere. According to the theories of Albert Einstein, the fission of an atom should result in a release of energy. An "atomic bomb" was now no longer just science fiction -- it was a distinct possibility.

88

Underwater Bomb Trajectory Prediction for Stand-off Assault (Mine/IED) Breaching Weapon  

E-Print Network (OSTI)

Underwater Bomb Trajectory Prediction for Stand-off Assault (Mine/IED) Breaching Weapon Fuse To support the development and evaluation of the Stand-off Assault Breaching Weapon Fuse Improvement (SOABWFI/surf zones to VSW-zone, i.e., the Stand-off Assault Breaching Weapon Fuse Improvement (SOABWFI) program. #12

Chu, Peter C.

89

A silent bomb: The risk of anthrax as a weapon of mass destruction  

Science Journals Connector (OSTI)

...quantitative assessment of the deaths...predictive power is thus subject...greatest risk, but its dry...that of a nuclear bomb. The...reduction of risk of anthrax...reduction of risk of nuclear WMD achieved...the postal plants in Brentwood...The power of terrorism lies in its threat...

G. F. Webb

2003-01-01T23:59:59.000Z

90

Separating natural and bomb-produced radiocarbon in the ocean: The potential alkalinity method  

E-Print Network (OSTI)

in the upper ocean, and as a proxy for anthropogenic CO2 concentration. Both the power and the difficultySeparating natural and bomb-produced radiocarbon in the ocean: The potential alkalinity method M. Key Atmospheric and Oceanic Sciences Program, Princeton University, Princeton, New Jersey, USA

91

Hadronic Atoms  

E-Print Network (OSTI)

We review the theory of hadronic atoms in QCD+QED. The non-relativistic effective Lagrangian approach, used to describe this type of bound states, is illustrated with the case of pi+pi- atoms. In addition, we discuss the evaluation of isospin-breaking corrections to hadronic atom observables by invoking chiral perturbation theory.

J. Gasser; V. E. Lyubovitskij; A. Rusetsky

2009-03-02T23:59:59.000Z

92

Cancer survivors and survivorship care: Provider expectations, post-treatment health services, and patient reported outcomes  

E-Print Network (OSTI)

2011) Long Term Effects and Cancer Survivorship in the OlderGanz (Eds. ), Management of Cancer for the Older Patient (the Quality of Care for Cancer Survivors. Psycho-Oncology (

Hahn, Erin Elizabeth

2013-01-01T23:59:59.000Z

93

Endocrine therapy initiation among Medicaid-insured breast cancer survivors with hormone receptor-positive tumors  

Science Journals Connector (OSTI)

Hormone receptor-positive (HR+) cancers account for most breast cancer diagnoses and deaths. Among survivors with HR + breast cancers, endocrine therapy (ET) reduces 5-year risk of recurrence by up to 40 %. Ob...

Stephanie Brooke Wheeler; Racquel Elizabeth Kohler…

2014-12-01T23:59:59.000Z

94

Better postdiagnosis diet quality is associated with less cancer-related fatigue in breast cancer survivors  

Science Journals Connector (OSTI)

A comprehensive understanding of the role of modifiable health behaviors in effective management of cancer-related fatigue is needed. Among breast cancer survivors, we examined how postdiagnosis diet quality, ...

Stephanie M. George; Catherine M. Alfano…

2014-12-01T23:59:59.000Z

95

Health Status of Long-term Cancer Survivors: Results from an Australian Population-Based Sample  

Science Journals Connector (OSTI)

...Cancer Research Article Research Articles Health Status of Long-term Cancer Survivors...Prevention Research Centre, School of Population Health, The University of Queensland, Level 3, Public Health Building, Herston Road, Herston, Queensland...

Elizabeth G. Eakin; Danny R. Youlden; Peter D. Baade; Sheleigh P. Lawler; Marina M. Reeves; Jane S. Heyworth; Lin Fritschi

2006-10-01T23:59:59.000Z

96

Prospective memory impairment in early breast cancer survivors: Finally homing in on the real deficit?  

Science Journals Connector (OSTI)

...2012; San Antonio, TX Prospective memory impairment in early breast cancer survivors...early breast cancer (EBC) treatment on memory functioning. One limitation of existing...may not be sensitive enough to detect memory problems as encountered in daily life...

S Verma; B Collins; X Song; M Bedard; L Paquet

2012-12-17T23:59:59.000Z

97

How training and experience affect the benefits of autonomy in a dirty-bomb experiment  

SciTech Connect

A dirty-bomb experiment conducted at the INL is used to evaluate the effectiveness and suitability of three different modes of robot control. The experiment uses three distinct user groups to understand how participants’ background and training affect the way in which they use and benefit from autonomy. The results show that the target mode, which involves automated mapping and plume tracing together with a point and click tasking tool, provides the best performance for each group. This is true for objective performance such as source detection and localization accuracy as well as subjective measures such as perceived workload, frustration and preference. The best overall performance is achieved by the Explosive Ordinance Disposal group which has experience in both robot teleoperation and dirty bomb response. The user group that benefits least from autonomy is the Nuclear Engineers that have no experience with either robot operation or dirty bomb response. The group that benefits most from autonomy is the Weapons of Mass Destruction Civil Response Team that has extensive experience related to the task, but no robot training.

David J. Bruemmer; Curtis W. Nielsen; David I. Gertman

2008-03-01T23:59:59.000Z

98

Semiclassical atom  

Science Journals Connector (OSTI)

Semiclassical quantization is incorporated into the average potential approach to atomic physics. The stationary energy functional is shown to be the sum of the Thomas-Fermi functional and a mainly oscillatory part. The latter turns out to be a small correction for sufficiently large atomic numbers, allowing perturbative treatment. Further, a detailed study of semiclassical spectra, with emphasis on energy degeneracy, is performed.

Berthold-Georg Englert and Julian Schwinger

1985-07-01T23:59:59.000Z

99

Everyday geographies of stroke survivors : a case study examining the relationship between activity space, health and well-being.  

E-Print Network (OSTI)

??Although it is well known that stroke can be a very debilitating experience, little evidence exists in the literature about how well stroke survivors fare… (more)

Sturge, Jodi L.

2008-01-01T23:59:59.000Z

100

Paediatric medical trauma: The impact on parents of burn survivors  

Science Journals Connector (OSTI)

In order to identify parents at risk of developing ongoing psychological distress after their child has sustained a burn a greater understanding of paediatric medical trauma is required. Aim To investigate the impact of exposure to paediatric trauma on parents of children with a burn and to identify risk factors and relationships between psychological distress and resilience. Methods Sixty-three parents were recruited. Parents completed standardised assessments measuring symptoms of posttraumatic stress disorder (PTSD), depression, anxiety, stress, and resilience within one week of the burn occurring. Statistical analysis included t-tests, Kruskal–Wallis one way ANOVA and Spearman's Roe. Results Parents experienced significantly more symptoms of PTSD (p = 0.001) than a comparative community population. Factors including having a daughter, witnessing the event, feeling helpless or having past traumatic experiences significantly influenced symptoms of psychological distress and resilience (p = 0.05). Conclusion Parents of burn survivors experience significant psychological distress with low levels of resilience. As part of standard routine care health professionals should screen parents to identify those at greatest risk and provide effective evidence based interventions aimed at improving resilience and reducing stress.

Sarah McGarry; Sonya Girdler; Ann McDonald; Jane Valentine; Fiona Wood; Catherine Elliott

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "atomic bomb survivors" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Follow-up care instructions, treatment summaries, and cancer survivors’ receipt of follow-up health care and late/long term effects  

Science Journals Connector (OSTI)

Cancer survivors need follow-up care. Survivorship care plans (SCP), including follow-up care instructions (FCI) and treatment summaries (TS), were designed to improve cancer survivors’ receipt of follow-up ca...

Jennifer M. Jabson

2014-12-01T23:59:59.000Z

102

Abstract--There is a need for increased opportunities for effective neurorehabilitation services for stroke survivors out-  

E-Print Network (OSTI)

for stroke survivors out- side the hospital environment. Efforts to develop low-cost robot/computer therapy-term goal is to develop a very low-cost system for stroke rehabilitation that can use commercial gaming technology and support rehabilitation with stroke survivors at all functioning levels. This paper reports

Nagurka, Mark L.

103

TITLE: Hospital-Based Acute Care Use in Survivors of Septic Shock Alexandra Ortego, B.A.1  

E-Print Network (OSTI)

TITLE: Hospital-Based Acute Care Use in Survivors of Septic Shock Authors: Alexandra Ortego, B.A.1 about the use of hospital-based acute care in survivors after hospital discharge. The objectives Department (ED) visits and hospital readmissions within 30 days of discharge. Design: Retrospective cohort

Small, Dylan

104

Manhattan Project: Final Approval to Build the Bomb, Washington, D.C.,  

Office of Scientific and Technical Information (OSTI)

President Roosevelt signs declaration of war with Japan, December 8, 1941. FINAL APPROVAL TO BUILD THE BOMB President Roosevelt signs declaration of war with Japan, December 8, 1941. FINAL APPROVAL TO BUILD THE BOMB (Washington, D.C., December 1942) Events > Difficult Choices, 1942 More Uranium Research, 1942 More Piles and Plutonium, 1942 Enter the Army, 1942 Groves and the MED, 1942 Picking Horses, November 1942 Final Approval to Build the Bomb, December 1942 Anxious as he was to get moving, Leslie Groves decided to make one final quality control check. On November 18, 1942, Groves appointed Warren K. Lewis of the Massachusetts Institute of Technology to head a final review committee, comprised of himself and three DuPont representatives. During the final two weeks of November, the committee traveled from New York to Chicago to Berkeley and back again through Chicago. It endorsed the work on gaseous diffusion at Columbia, though it made some organizational recommendations; in fact, the Lewis committee advocated elevating gaseous diffusion to first priority and expressed reservations about the electromagnetic program despite an impassioned presentation by Ernest Lawrence in Berkeley. Upon returning to Chicago, Crawford H. Greenewalt, a member of the Lewis committee, was present at Stagg Field when CP-1 (Chicago Pile #1) first went critical. (For more on CP-1, skip ahead to "Early Pile Design, 1942.") Significant as this moment was in the history of physics, it came after the Lewis committee endorsed moving piles to the pilot stage and one day after Groves instructed DuPont to move into pile design and construction.

105

Atom Interferometry  

ScienceCinema (OSTI)

Atom de Broglie wave interferometry has emerged as a tool capable of addressing a diverse set of questions in gravitational and condensed matter physics, and as an enabling technology for advanced sensors in geodesy and navigation. This talk will review basic principles, then discuss recent applications and future directions. Scientific applications to be discussed include measurement of G (Newton?s constant), tests of the Equivalence Principle and post-Newtonian gravity, and study of the Kosterlitz-Thouless phase transition in layered superfluids. Technology applications include development of precision gryoscopes and gravity gradiometers. The talk will conclude with speculative remarks looking to the future: Can atom interference methods be sued to detect gravity waves? Can non-classical (entangled/squeezed state) atom sources lead to meaningful sensor performance improvements?

Mark Kasevich

2010-01-08T23:59:59.000Z

106

POLICY RELATED TO THREATS OF CAMPUS DISRUPTION Bomb threats and similar situations are disruptive to the academic, research and operational functions of  

E-Print Network (OSTI)

POLICY RELATED TO THREATS OF CAMPUS DISRUPTION Bomb threats and similar situations are disruptive. Policy Any bomb threat or incident of a suspected explosive device shall be considered as valid by all advised that the situation is no longer considered a threat. Every effort must be made to protect

Collins, Gary S.

107

IN PERSPECTIVE REVIEW Cyclooxygenase-2 as a Signaling Molecule  

E-Print Network (OSTI)

found in survivors of the atomic bombs in Japan, the International Commission on Radiation ProtectionIN PERSPECTIVE REVIEW Cyclooxygenase-2 as a Signaling Molecule in Radiation-Induced Bystander Radiation-induced bystander effect represents a paradigm shift in our understanding of the radiobiological

108

Tech Micro Services NIST Sponsored Workshop  

E-Print Network (OSTI)

for a broad range of ionizing radiation exposure intensities and qualities. OSL nanoDots are cost effective late effects of acute ionizing radiation exposures in atomic bomb survivors" initiated October 2009 of the radiation doses being delivered to experimental animals under test. Accuracy and reproducibility

109

The Dynamics of Life. I. Death from Internal Irradiation by 239Pu and 226Ra, Aging, Cancer, and Other Diseases  

Science Journals Connector (OSTI)

...readily operable cancer such as cancer of the skin. The rightmost...5 10.9 2.28 0 Aging and cancer 18 0 4 .4 1 .87 2443 Epilepsy...in the case of radium. The depleted reserve, as indicated by 30...atomic bomb survivors, the uranium miners, and the Marshall Islanders...

Betsy J. Stover; Henry Eyring

1970-01-01T23:59:59.000Z

110

Cancer Survivors in the United States: Prevalence across the Survivorship Trajectory and Implications for Care  

Science Journals Connector (OSTI)

...the sharing of health information across electronic record...unknown. Advances in mHealth represent another vehicle...survivors with extensive information about their disease...and communicate this information to a healthcare provider...45 ). As the use of mHealth technology increases...

Janet S. de Moor; Angela B. Mariotto; Carla Parry; Catherine M. Alfano; Lynne Padgett; Erin E. Kent; Laura Forsythe; Steve Scoppa; Mark Hachey; and Julia H. Rowland

2013-04-01T23:59:59.000Z

111

This manuscript has been published as: S Bernard, J Frisn, KL Spalding. A mathematical model for the interpretation of nuclear bomb test derived 14C incorporation in biological systems (2010) Nucl. Instr.  

E-Print Network (OSTI)

for the interpretation of nuclear bomb test derived 14C incorporation in biological systems (2010) Nucl. Instr. and Meth for the interpretation of nuclear bomb test derived 14 C incorporation in biological systems Samuel Bernard1 , Jonas nuclear bomb testing during the cold war (1955-1963). For slowly renewing tissues, this method provides

Boyer, Edmond

112

Atom Probe Tomography | EMSL  

NLE Websites -- All DOE Office Websites (Extended Search)

Atom Probe Tomography Atom Probe Tomography The LEAP 4000 XHR local electrode atom probe tomography instrument enabled the first-ever comprehensive and accurate 3-D chemical...

113

Tftler im Bierkeller Richard von Schirach, Die Nacht der Physiker, Heisenberg, Hahn, Weizscker und die deutsche Bombe  

E-Print Network (OSTI)

und die deutsche Bombe 272 Seiten, Berenberg Verlag, Berlin 2012, 25 Euro Der Abwurf der ersten Reichsmark in die deutsche Forschung. Daneben war die Motivation der Wis- senschaftler ein zweiter Schlüssel- senberg rückblickend feststellte, bleibt auch für Schirach eine plausible Erklärung für das deutsche

114

TIGER -- A technology to improve the delivery capability of nuclear bombs and the survivability of the delivery aircraft  

SciTech Connect

The TIGER (Terminal guided and Extended-Range) Program was initiated in 1972 to study improved delivery capabilities for stockpiled tactical nuclear bombs. The Southeast Asia conflict fostered the development of air-delivered standoff conventional weapons utilizing terminal guidance systems. SNL initiated the TIGER program to determine if current nuclear bombs could be provided with a similarly accurate standoff capabilities. These conventional weapon delivery techniques, while allowing highly accurate attack, generally require entering the target area at high altitude to establish line of sight to the target. In parallel with the TIGER program, system studies analyzed this concept and showed marked improvement in aircraft and weapon survivability with moderate standoff (10--20 km) if low level deliveries (60 m) could be accomplished. As a result of this work, the TIGER program was redirected in early 1974 to demonstrate a standoff bomb with good accuracy (90 m CEP) when delivered from low flying aircraft. This program redirection resulted in the selection of an inertial guidance system to replace the earlier terminal guidance systems. This program was called the Extended-Range Bomb (ERB). In May 1974, a joint Air Force/DOE study identified the desirability of having a single tactical weapon which could be employed against either fixed, preselected targets, or mobile battlefield targets. Studies conducted on the ERB system showed that the inertially guided weapon could fly not only the standoff mission but also a return-to-target mission against the mobile battlefield targets whose locations are not known accurately enough to use a standoff delivery. The ERB program evolved from these initial investigations into an exploratory program to develop the hardware and demonstrate the technology required to fly standoff and return-to-target trajectories. The application of this technology in the form of field retrofit kits to the B61 bomb is called TIGER II.

NONE

1980-12-31T23:59:59.000Z

115

The effects of using Cesium-137 teletherapy sources as a radiological weapon (dirty bomb)  

E-Print Network (OSTI)

While radioactive sources used in medical diagnosis do not pose a great security risk due to their low level of radioactivity, therapeutic sources are extremely radioactive and can presumably be used as a radiological weapon. Cobalt-60 and Cesium-137 sources are the most common ones used in radiotherapy with over 10,000 of such sources currently in use worldwide, especially in the developing world, which cannot afford modern accelerators. The present study uses computer simulations to investigate the effects of using Cesium-137 sources from teletherapy devices as a radiological weapon. Assuming a worst-case terrorist attack scenario, we estimate the ensuing cancer mortality, land contamination, evacuation area, as well as the relevant evacuation, decontamination, and health costs in the framework of the linear risk model. The results indicate that an attack with a Cesium-137 dirty bomb in a large metropolitan city (especially one that would involve several teletherapy sources) although would not cause any sta...

Liolios, Theodore

2009-01-01T23:59:59.000Z

116

Cancer survivorship research: the challenge of recruiting adult long term cancer survivors from a cooperative clinical trials group  

E-Print Network (OSTI)

quality of life among long-term survivors of breast cancer.Breast Cancer Res Treat. 1996;39(3):261–73. doi:B, Bower JE. Breast Cancer in Younger Women: Reproductive

2009-01-01T23:59:59.000Z

117

Radiation and Non-Hodgkin's Lymphoma  

Science Journals Connector (OSTI)

...bomb survivors in Japan and other epidemiological...quantitative estimates of radiation dose also fail to...bomb survivors in Japan and other epidemiological...quantitative estimates of radiation dose also fail to...bomb survivors in Japan and other epidemiol...quantitative estimates of radiation dose also fail to...

John D. Boice, Jr.

1992-10-01T23:59:59.000Z

118

Atomic magnetometer  

DOE Patents (OSTI)

An atomic magnetometer is disclosed which uses a pump light beam at a D1 or D2 transition of an alkali metal vapor to magnetically polarize the vapor in a heated cell, and a probe light beam at a different D2 or D1 transition to sense the magnetic field via a polarization rotation of the probe light beam. The pump and probe light beams are both directed along substantially the same optical path through an optical waveplate and through the heated cell to an optical filter which blocks the pump light beam while transmitting the probe light beam to one or more photodetectors which generate electrical signals to sense the magnetic field. The optical waveplate functions as a quarter waveplate to circularly polarize the pump light beam, and as a half waveplate to maintain the probe light beam linearly polarized.

Schwindt, Peter (Albuquerque, NM); Johnson, Cort N. (Albuquerque, NM)

2012-07-03T23:59:59.000Z

119

Sensitivity of the Simulated Distributions of Water Masses, CFCs, and Bomb 14C to Parameterizations of Mesoscale Tracer Transports in a Model of the North Pacific  

Science Journals Connector (OSTI)

A basinwide ocean general circulation model of the North Pacific Ocean is used to study the sensitivity of the simulated distributions of water masses, chlorofluorocarbons (CFCs), and bomb carbon-14 isotope (14C) to parameterizations of mesoscale ...

Yongfu Xu; Shigeaki Aoki; Koh Harada

2006-03-01T23:59:59.000Z

120

The socio-technical construction of precision bombing : a study of shared control and cognition by humans, machines, and doctrine during World War II  

E-Print Network (OSTI)

This dissertation examines the creation and initial use of the precision bombing system employed by the United States Army Air Forces during World War II in the opening phase of the Combined Bomber Offensive against Germany. ...

O'Mara, Raymond P. (Raymond Patrick)

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "atomic bomb survivors" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Legacy of a Bomb: The Manhattan Project’s Impact on the Scientific Community  

E-Print Network (OSTI)

1993. Atomic Harvest: Hanford and the Lethal Toll ofs technological innovations. Hanford Site remained a nucleartechnology. Some in Hanford and most of the structures were

Gao, Jany Huan

2009-01-01T23:59:59.000Z

122

Measuring atomic properties with an atom interferometer  

E-Print Network (OSTI)

Two experiments are presented which measure atomic properties using an atom interferometer. The interferometer splits the sodium de Broglie wave into two paths, one of which travels through an interaction region. The paths ...

Roberts, Tony David, 1972-

2002-01-01T23:59:59.000Z

123

A review of "Royal Survivor: A Life of Charles II." by Stephen Coote  

E-Print Network (OSTI)

of Charles II. New York: St. Martin?s Press, 2000. xiv + 396 pp. Includes b & w plates. $27.95. (First published in the UK by Hodder and Stoughton.) Review by BRYAN N.S. GOOCH, UNIVERSITY OF VICTORIA. Stephen Coote?s Royal Survivor is more than a well... Duke of Buckingham in 1628), experiencing some forays in matters aca- demic (Thomas Hobbes made a sometime august tutor in math- ematics), meeting the young Louis XIV, tasting the fringes (amatory and otherwise) of the French court under the less than...

Bryan N.S. Gooch

2002-01-01T23:59:59.000Z

124

Elements & Compounds Atoms (Elements)  

E-Print Network (OSTI)

#12;Elements & Compounds #12;Atoms (Elements) Molecules (Compounds) Cells Elements & Compounds #12;Nucleus Electrons Cloud of negative charge (2 electrons) Fig. 2.5: Simplified model of a Helium (He) Atom He 4.002602 2 Helium Mass Number (~atomic mass) = number of Neutrons + Protons = 4 for Helium Atomic

Frey, Terry

125

Neutral atom traps.  

SciTech Connect

This report describes progress in designing a neutral atom trap capable of trapping sub millikelvin atom in a magnetic trap and shuttling the atoms across the atom chip from a collection area to an optical cavity. The numerical simulation and atom chip design are discussed. Also, discussed are preliminary calculations of quantum noise sources in Kerr nonlinear optics measurements based on electromagnetically induced transparency. These types of measurements may be important for quantum nondemolition measurements at the few photon limit.

Pack, Michael Vern

2008-12-01T23:59:59.000Z

126

Structure of the Ebola Virus Glycoprotein Bound to An Antibody From a Human Survivor  

SciTech Connect

Ebola virus (EBOV) entry requires the surface glycoprotein (GP) to initiate attachment and fusion of viral and host membranes. Here we report the crystal structure of EBOV GP in its trimeric, pre-fusion conformation (GP1+GP2) bound to a neutralizing antibody, KZ52, derived from a human survivor of the 1995 Kikwit outbreak. Three GP1 viral attachment subunits assemble to form a chalice, cradled by the GP2 fusion subunits, while a novel glycan cap and projected mucin-like domain restrict access to the conserved receptor-binding site sequestered in the chalice bowl. The glycocalyx surrounding GP is likely central to immune evasion and may explain why survivors have insignificant neutralizing antibody titres. KZ52 recognizes a protein epitope at the chalice base where it clamps several regions of the pre-fusion GP2 to the amino terminus of GP1. This structure provides a template for unraveling the mechanism of EBOV GP-mediated fusion and for future immunotherapeutic development.

Lee, J.E.; Fusco, M.L.; Hessell, A.J.; Oswald, W.B.; Burton, D.R.; Saphire, E.O.

2009-05-20T23:59:59.000Z

127

Assessment and reduction of proliferation risk of reactor-grade plutonium regarding construction of ‘fizzle bombs’ by terrorists  

Science Journals Connector (OSTI)

Abstract The approximately 23.7 wt% 240Pu in reactor-grade plutonium denatures the 239Pu to the extent that it cannot fuel high yield nuclear weapons. 240Pu has a high spontaneous fission rate, which increases the spontaneous neutron flux within the fuel. When such a nuclear weapon is triggered, these neutrons cause the nuclear fission chain reaction to pre-detonate which blows the imploding fuel shell apart before the designed level of compression and reactivity could be attained, thereby greatly reducing the average energy yield of such “fizzle” bombs. Therefore reactor-grade plutonium is normally viewed as highly proliferation resistant. In this article the literature on the proliferation resistance of reactor-grade plutonium and on the mechanism and effect of fizzle bombs is reviewed in order to test this view. It is shown that even very low yield fizzle bombs, exploded in urban areas, would still cause serious blast damage as well as radioactive contamination. Combined with the high levels of induced terror, fizzle bombs might thus be attractive psychological weapons for terrorists. Therefore reactor-grade plutonium may not be sufficiently proliferation resistant against nuclear terrorism. However, denaturisation with more than 9% 238Pu produces high levels of decay heat which will melt or explode the high explosives around uncooled implosion type weapons, rendering them useless. Unfortunately, reactor-grade Pu contains only 2.7% 238Pu and is thus not sufficiently proliferation resistant in this respect. It is also shown that the associated neptunium poses a substantial proliferation risk. In the present study strong improvement of the proliferation resistance was demonstrated by simulation of incineration of reactor-grade plutonium in the 400 MWth Pebble Bed Modular Reactor Demonstration Power Plant. Results for modified fuel cycles, aimed at transmutating 237Np to 238Pu are also reported. However, these modifications increased the disloaded heavy metal mass, thereby substantially increasing the radiotoxicity of the spent fuel. Therefore this intervention is not recommended. 237NP should thus rather be incinerated it in fast reactors, light-water reactors or CANDU reactors.

Dawid E. Serfontein; Eben J. Mulder; Frederik Reitsma

2014-01-01T23:59:59.000Z

128

7 -ATOMIC PROCESSES Atomic processes can be  

E-Print Network (OSTI)

1 7 - ATOMIC PROCESSES Atomic processes can be: 1. Scattering 2. Absorption/Thermal Emission scattering, although the results won't change much when this condition is relaxed. Absorption/Thermal Emission Free-free (continuum) ("Bremsstrahlung") Emission/Absorption #12;2 Bound-Bound & Bound

Sitko, Michael L.

129

7 -ATOMIC PROCESSES Atomic processes can be  

E-Print Network (OSTI)

1 7 - ATOMIC PROCESSES Atomic processes can be: 1. Scattering 2. Absorption/Thermal Emission scattering, although the results won't change much when this condition is relaxed. #12;2 Absorption/Thermal Emission Free-free (continuum) ("Bremsstrahlung") Emission/Absorption Bound-Bound & Bound-Free Processes

Sitko, Michael L.

130

Reading Comprehension - Atomic History  

NLE Websites -- All DOE Office Websites (Extended Search)

Atomic History Atomic History A Greek philosopher named Democritus said that all atoms are small, hard particles. He thought that atoms were made of a single material formed into different shapes and sizes. The word " _________ element compound mixture atom " is derived from the Greek word "atomos" which means "not able to be divided." In 1803, John Dalton, a school teacher, proposed his atomic theory. Dalton's theory states that elements (substances composed of only one type of _________ molecules ions atom ) combine in certain proportions to form _________ compounds atoms mixtures elements . In 1897, a British scientist named J. J. Thomson experimented with a cathode-ray tube which had a positively charged plate. The plate attracted negatively charged particles that we now call _________ protons neutrons

131

The Universe Adventure - Atoms  

NLE Websites -- All DOE Office Websites (Extended Search)

Matter and Atoms Matter and Atoms Richard Feynman "If, in some cataclysm, all of scientific knowledge were to be destroyed, and only one sentence passed on to the next generations of creatures, what statement would contain the most information in the fewest words? I believe it is that...all things are made of atoms." -Richard P. Feynman, winner of the 1965 Nobel Prize in Physics All is atoms Matter is made of atoms, and atoms are comprised of protons, neutrons, and electrons. Everything in the Universe is made of matter. Though matter exists in many different forms, each form is made out of the same basic constituents: small particles called atoms. Atoms themselves are made of smaller particles: protons, neutrons, and electrons. Protons and neutrons are composed of even smaller particles called quarks.

132

Atomizing nozzle and process  

DOE Patents (OSTI)

High pressure atomizing nozzle includes a high pressure gas manifold having a divergent expansion chamber between a gas inlet and arcuate manifold segment to minimize standing shock wave patterns in the manifold and thereby improve filling of the manifold with high pressure gas for improved melt atomization. The atomizing nozzle is especially useful in atomizing rare earth-transition metal alloys to form fine powder particles wherein a majority of the powder particles exhibit particle sizes having near-optimum magnetic properties.

Anderson, I.E.; Figliola, R.S.; Molnar, H.M.

1993-07-20T23:59:59.000Z

133

Atomic Energy Commission : Atomic Power at Shippingport - 1958 Educational Film  

SciTech Connect

The United States Atomic Energy Commission & Westinghouse Electric Company take us on a tour of an atomic power station.

None

2013-02-02T23:59:59.000Z

134

Rank Name Peak Date Peak Location Bomb Peak Gradient Min Depth (Hr-Dy-Mn-Yr) (Lat, Lon) (Bergeron) (hPa/1000km) (hPa)  

E-Print Network (OSTI)

Rank Name Peak Date Peak Location Bomb Peak Gradient Min Depth (Hr-Dy-Mn-Yr) (Lat, Lon) (Bergeron, and northwest europe (Cambride Univ. Pr.). 1 #12;Figure S1(a): Evolution of 'Daria' (the top ranked storm arrow is approximately 50 m s-1). 2 #12;Figure S1(b): As for Figure S1(a) but for the storm ranked

Caballero, Rodrigo

135

The mission of the Joyful Heart Foundation is to heal, educate and empower survivors of sexual assault, domestic violence and child abuse, and to shed light  

E-Print Network (OSTI)

The mission of the Joyful Heart Foundation is to heal, educate and empower survivors of sexual these issues. presented by the Joyful Heart Foundation Saturday, June 21, 2014 9:00 AM ­ 5:00 PM Free of charge

136

Albert Einstein Alerts President Roosevelt of German Atomic Energy...  

National Nuclear Security Administration (NNSA)

possibility that research might lead to developing powerful bombs. Einstein notes that Germany has stopped the sale of uranium and German physicists are engaged in uranium...

137

ATOMS PEACE WAR Eisenhower  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

ATOMS ATOMS PEACE WAR Eisenhower and the Atomic Energy Commission Richard G. Hewlett and lack M. Roll With a Foreword by Richard S. Kirkendall and an Essay on Sources by Roger M. Anders University of California Press Berkeley Los Angeles London Published 1989 by the University of California Press Berkeley and Los Angeles, California University of California Press, Ltd. London, England Prepared by the Atomic Energy Commission; work made for hire. Library of Congress Cataloging-in-Publication Data Hewlett, Richard G. Atoms for peace and war, 1953-1961. (California studies in the history of science) Bibliography: p. Includes index. 1. Nuclear energy-United States-History. 2. U.S. Atomic Energy Commission-History. 3. Eisenhower, Dwight D. (Dwight David), 1890-1969.

138

Standard test method for heat of combustion of hydrocarbon fuels by bomb calorimeter (high-precision method)  

SciTech Connect

This method covers the determination of the heat of combustion of hydrocarbon fuels. It is designed specifically for use with aviation turbine fuels when the permissible difference between duplicate determinations is of the order of 0.1%. It can be used for a wide range of volatile and nonvolatile materials where slightly greater differences in precision can be tolerated. The heat of combustion is determined by burning a weighed sample in an oxygen-bomb calorimeter under controlled conditions. The temperature is measured by means of a platinum resistance thermometer. The heat of combustion is calculated from temperature observations before, during, and after combustion, with proper allowance for thermochemical and heat-transfer corrections. Either isothermal or adiabatic calorimeters may be used. The heat of combustion is a measure of the energy available from a fuel. A knowledge of this value is essential when considering the thermal efficiency of equipment for producing either power or heat.

Not Available

1980-01-01T23:59:59.000Z

139

Accelerated guided atomic pulse  

Science Journals Connector (OSTI)

The deleterious effects of dispersion on a propagating coherent atomic pulse, along the axis of a traveling-wave laser beam, can be ameliorated by the nonlinear self-interacting force due to dipole-dipole coupling between atoms. We show that a wide atomic pulse with a particular profile can retain its shape during propagation and, moreover, the momentum of the pulse increases due to photon absorption. For the wide soliton case, we demonstrate analytically that the self-interacting atomic force scales inversely with the third power of the pulse width.

S. Dyrting; Weiping Zhang; B. C. Sanders

1997-09-01T23:59:59.000Z

140

Atomic Collapse Observed  

NLE Websites -- All DOE Office Websites (Extended Search)

Scientists Observe Atomic Collapse State Quantum Mechanics Prediction Confirmed in Graphene Using NERSC's Hopper April 26, 2013 | Tags: Hopper, Materials Science Contact: Linda...

Note: This page contains sample records for the topic "atomic bomb survivors" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Multiplicative Sets of Atoms.  

E-Print Network (OSTI)

??It is possible for an element to have both an atom factorization and a factorization that will always contain a reducible element. This leads us… (more)

Rand, Ashley Nicole

2013-01-01T23:59:59.000Z

142

Improved graphite furnace atomizer  

DOE Patents (OSTI)

A graphite furnace atomizer for use in graphite furnace atomic absorption spectroscopy is described wherein the heating elements are affixed near the optical path and away from the point of sample deposition, so that when the sample is volatilized the spectroscopic temperature at the optical path is at least that of the volatilization temperature, whereby analyteconcomitant complex formation is advantageously reduced. The atomizer may be elongated along its axis to increase the distance between the optical path and the sample deposition point. Also, the atomizer may be elongated along the axis of the optical path, whereby its analytical sensitivity is greatly increased.

Siemer, D.D.

1983-05-18T23:59:59.000Z

143

Atom Nano-Optics  

Science Journals Connector (OSTI)

Nanolocalized light fields composed of photon dots and photon holes are being used to control the motion of atoms on a nanometer spatial scale.

Balykin, Victor; Klimov, Vasilii; Letokhov, Vladilen

2005-01-01T23:59:59.000Z

144

Atoms for Peace Awards  

Science Journals Connector (OSTI)

... Technology, is to be chairman of the Organization and Planning Committee of Atoms for Peace Awards. In addition to Dr. Killian, the Committee will include Dr. Detlev W. ... and Dr. Alan Waterman, director of the National Science Foundation. The Atoms for Peace Awards, it will be recalled, were established last summer as a memorial to Henry Ford ...

1955-10-29T23:59:59.000Z

145

Hirshfeld atom refinement  

Science Journals Connector (OSTI)

The new automated iterative Hirshfeld atom refinement method is explained and validated through comparison of structural models of Gly-L-Ala obtained from synchrotron X-ray and neutron diffraction data at 12, 50, 150 and 295 K. Structural parameters involving hydrogen atoms are determined with comparable precision from both experiments and agree mostly to within two combined standard uncertainties.

Capelli, S.C.

2014-08-29T23:59:59.000Z

146

Atomic dark matter  

SciTech Connect

We propose that dark matter is dominantly comprised of atomic bound states. We build a simple model and map the parameter space that results in the early universe formation of hydrogen-like dark atoms. We find that atomic dark matter has interesting implications for cosmology as well as direct detection: Weak-scale dark atoms can accommodate hyperfine splittings of order 100 keV, consistent with the inelastic dark matter interpretation of the DAMA data while naturally evading direct detection bounds. Moreover, protohalo formation can be suppressed below M{sub proto} ? 10{sup 3}–10{sup 6}M{sub s}un for weak scale dark matter due to Ion-Radiation and Ion-Atom interactions in the dark sector.

Kaplan, David E.; Krnjaic, Gordan Z.; Rehermann, Keith R.; Wells, Christopher M., E-mail: dkaplan@pha.jhu.edu, E-mail: gordan@pha.jhu.edu, E-mail: keith@pha.jhu.edu, E-mail: cwells13@pha.jhu.edu [Department of Physics and Astronomy, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218-2686 (United States)

2010-05-01T23:59:59.000Z

147

LRB Steven Shapin: Hedonistic Fruit Bombs http://www.lrb.co.uk/v27/n03/print/shap01_.html 1 of 13 2/4/2008 11:28 AM  

E-Print Network (OSTI)

LRB · Steven Shapin: Hedonistic Fruit Bombs http://www.lrb.co.uk/v27/n03/print/shap01_.html 1 of 13 2/4/2008 11:28 AM LRB 3 February 2005 Steven Shapin screen layout tell a friend Hedonistic Fruit T S S E A R C H #12;LRB · Steven Shapin: Hedonistic Fruit Bombs http://www.lrb.co.uk/v27/n03/print/shap01

Shapin, Steven

148

general_atomics.cdr  

NLE Websites -- All DOE Office Websites (Extended Search)

former former General Atomics Hot Cell Facility was constructed in 1959 and operated until 1991. The site encompassed approximately 7,400 square feet of laboratory and remote operations cells. Licensed operations at the facility included receipt, handling, and shipment of radioactive materials; remote handling, examination, and storage of previously irradiated nuclear fuel materials; pilot-scale tritium extraction operations; and development, fabrication, and inspection of uranium oxide-beryllium oxide fuel materials. General Atomics performed most of the work for the federal government. The General Atomics Hot Cell Facility was located in a 60-acre complex 13 miles northwest of downtown San Diego, 1 mile inland from the Pacific Ocean, and approximately 300 feet above sea level. The General Atomics site is in the center of Torrey Mesa Science Center, a 304-acre industrial

149

Uncertainties on Atomic Data  

Science Journals Connector (OSTI)

Technical Paper / Selected papers from IAEA-NFRI Technical Meeting on Data Evaluation for Atomic, Molecular and Plasma-Material Interaction Processes in Fusion, September 4-7, 2012, Daejeon, Republic of Korea

C. P. Ballance; S. D. Loch; A. R. Foster; R. K. Smith; M. C. Witthoeft; T. R. Kallman

150

Relativistic Atomic Structure Calculations  

Science Journals Connector (OSTI)

This review surveys methods for computing the electronic structures of atoms based on the use of relativistic quantum mechanics. The main mathematical formulas are presented with some account of the underlying...

Ian P. Grant

1988-01-01T23:59:59.000Z

151

general_atomics.cdr  

Office of Legacy Management (LM)

300 feet above sea level. The General Atomics site is in the center of Torrey Mesa Science Center, a 304-acre industrial park. No ground water wells are at or near the Hot Cell...

152

The Harnessed Atom | Department of Energy  

Energy Savers (EERE)

Atom The Harnessed Atom The Harnessed Atom The Harnessed Atom is a new middle school science, technology, engineering, and math (STEM) curriculum extension that focuses on...

153

Optical imaging of Rydberg atoms .  

E-Print Network (OSTI)

??We present an experiment exploring electromagnetically induced transparency (EIT) in Rydberg atoms in order to observe optical nonlinearities at the single photon level. ??Rb atoms… (more)

Mazurenko, Anton

2012-01-01T23:59:59.000Z

154

Rydberg Atoms for Quantum Information.  

E-Print Network (OSTI)

??I examine interactions between ensembles of cold Rydberg atoms, and between Rydberg atoms and an intense, optical standing wave. Because of their strong electrostatic interactions,… (more)

Younge, Kelly Cooper

2010-01-01T23:59:59.000Z

155

Optical atomic magnetometer  

DOE Patents (OSTI)

An optical atomic magnetometers is provided operating on the principles of nonlinear magneto-optical rotation. An atomic vapor is optically pumped using linearly polarized modulated light. The vapor is then probed using a non-modulated linearly polarized light beam. The resulting modulation in polarization angle of the probe light is detected and used in a feedback loop to induce self-oscillation at the resonant frequency.

Budker, Dmitry; Higbie, James; Corsini, Eric P

2013-11-19T23:59:59.000Z

156

Metal atomization spray nozzle  

DOE Patents (OSTI)

A spray nozzle for a magnetohydrodynamic atomization apparatus has a feed passage for molten metal and a pair of spray electrodes mounted in the feed passage. The electrodes, diverging surfaces which define a nozzle throat and diverge at an acute angle from the throat. Current passes through molten metal when fed through the throat which creates the Lorentz force necessary to provide atomization of the molten metal. 6 figures.

Huxford, T.J.

1993-11-16T23:59:59.000Z

157

Atomic mass compilation 2012  

SciTech Connect

Atomic mass reflects the total binding energy of all nucleons in an atomic nucleus. Compilations and evaluations of atomic masses and derived quantities, such as neutron or proton separation energies, are indispensable tools for research and applications. In the last decade, the field has evolved rapidly after the advent of new production and measuring techniques for stable and unstable nuclei resulting in substantial ameliorations concerning the body of data and their precision. Here, we present a compilation of atomic masses comprising the data from the evaluation of 2003 as well as the results of new measurements performed. The relevant literature in refereed journals and reports as far as available, was scanned for the period beginning 2003 up to and including April 2012. Overall, 5750 new data points have been collected. Recommended values for the relative atomic masses have been derived and a comparison with the 2003 Atomic Mass Evaluation has been performed. This work has been carried out in collaboration with and as a contribution to the European Nuclear Structure and Decay Data Network of Evaluations.

Pfeiffer, B., E-mail: bpfeiffe@uni-mainz.de [II. Physikalisches Institut, Justus-Liebig-Universität Gießen, Gießen (Germany); GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt (Germany); Venkataramaniah, K. [Sri Sathya Sai Institute of Higher Learning, Prasanthinilayam (India)] [Sri Sathya Sai Institute of Higher Learning, Prasanthinilayam (India); Czok, U. [II. Physikalisches Institut, Justus-Liebig-Universität Gießen, Gießen (Germany)] [II. Physikalisches Institut, Justus-Liebig-Universität Gießen, Gießen (Germany); Scheidenberger, C. [GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt (Germany) [GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt (Germany); II. Physikalisches Institut, Justus-Liebig-Universität Gießen, Gießen (Germany)

2014-03-15T23:59:59.000Z

158

Peaceful Uses of the Atom and Atoms for Peace  

Office of Scientific and Technical Information (OSTI)

Peaceful Uses of the Atom Peaceful Uses of the Atom Fermi and Atoms for Peace · Understanding the Atom · Seaborg · Teller Atoms for Peace Atoms for Peace + 50 - Conference, October 22, 2003 Celebrating the 50th anniversary of President Eisenhower's "Atoms for Peace" speech to the UN General Assembly Atoms for Peace (video 12:00 Minutes) Atoms for Peace Address given by Dwight D. Eisenhower before the General Assembly of the United Nations, New York City, December 8, 1953 Documents: Atomic Power in Space: A History A history of the Space Isotope Power Program of the United States from the mid-1950s through 1982; interplanetary space exploration successes and achievements have been made possible by this technology. Establishing Site X: Letter, Arthur H. Compton to Enrico Fermi, September 14, 1942

159

Bomb-Pulse Chlorine-36 At The Proposed Yucca Mountain Repository Horizon: An Investigation Of Previous Conflicting Results And Collection Of New Data  

SciTech Connect

Previous studies by scientists at Los Alamos National Laboratory (LANL) found elevated ratios of chlorine-36 to total chloride ({sup 36}Cl/Cl) in samples of rock collected from the Exploratory Studies Facility (ESF) and the Enhanced Characterization of the Repository Block (ECRB) at Yucca Mountain as the tunnels were excavated. The data were interpreted as an indication that fluids containing 'bomb-pulse' {sup 36}Cl reached the repository horizon in the {approx}50 years since the peak period of above-ground nuclear testing. Moreover, the data support the concept that so-called fast pathways for infiltration not only exist but are active, possibly through a combination of porous media, faults and/or other geologic features. Due to the significance of {sup 36}Cl data to conceptual models of unsaturated zone flow and transport, the United States Geological Survey (USGS) was requested by the Department of Energy (DOE) to design and implement a study to validate the LANL findings. The USGS chose to drill new boreholes at select locations across zones where bomb-pulse ratios had previously been identified. The drill cores were analyzed at Lawrence Livermore National Laboratory (LLNL) for {sup 36}Cl/Cl using both active and passive leaches, with the USGS/LLNL concluding that the active leach extracted too much rock-Cl and the passive leach did not show bomb-pulse ratios. Because consensus was not reached between the USGS/LLNL and LANL on several fundamental points, including the conceptual strategy for sampling, interpretation and use of tritium ({sup 3}H) data, and the importance and interpretation of blanks, in addition to the presence or absence of bomb-pulse {sup 36}Cl, an evaluation by an independent entity, the University of Nevada, Las Vegas (UNLV), using new samples was initiated. This report is the result of that study. The overall objectives of the UNLV study were to investigate the source or sources of the conflicting results from the previous validation study, and to obtain additional data to determine whether or not there are bomb-pulse isotopes at the repository horizon. To that en4 we have engaged in discussions with previous investigators, reviewed reports, and analyzed archived samples. We have also collected new samples of rock from the ESF, soil profiles from the surface of Yucca Mountain, and opportunistic samples of seep water from inside the south ramp of the ESF.

J. Cizdziel

2006-07-28T23:59:59.000Z

160

Lesson 3- Atoms and Isotopes  

Energy.gov (U.S. Department of Energy (DOE))

You’ve probably heard people refer to nuclear energy as “atomic energy.” Why? Nuclear energy is the energy that is stored in the bonds of atoms, inside the nucleus. Nuclear power plants are designed to capture this energy as heat and convert it to electricity. This lesson looks closely at what atoms are and how atoms store energy.

Note: This page contains sample records for the topic "atomic bomb survivors" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Educational Multiwavelength Atomic Emission Spectrometer  

E-Print Network (OSTI)

atomic absorption is the capability for simultaneous multielement analysis. It can be used colleges had acquired atomic absorption instruments by the year 1990.[2] In contrast, atomic emission with the acetylene-air flame source taken from an existing atomic absorption instrument. Two spectrometer units

Nazarenko, Alexander

162

general_atomics.cdr  

Office of Legacy Management (LM)

former General former General Atomics Hot Cell Facility was constructed in 1959 and operated until 1991. The site encompassed approximately 7,400 square feet of laboratory and remote operations cells. Licensed operations at the facility included receipt, handling, and shipment of radioactive materials; remote handling, examination, and storage of previously irradiated nuclear fuel materials; pilot-scale tritium extraction operations; and development, fabrication, and inspection of uranium oxide-beryllium oxide fuel materials. General Atomics performed most of the work for the federal government. The General Atomics Hot Cell Facility was located in a 60-acre complex 13 miles northwest of downtown San Diego, 1 mile inland from the Pacific Ocean, and approximately 300 feet above sea level.

163

Iowa Powder Atomization Technologies  

SciTech Connect

The same atomization effect seen in a fuel injector is being applied to titanium metal resulting in fine titanium powders that are less than half the width of a human hair. Titanium melts above 3,000°F and is highly corrosive therefore requiring specialized containers. The liquid titanium is poured through an Ames Laboratory - USDOE patented tube which is intended to increase the energy efficiency of the atomization process, which has the ability to dramatically decrease the cost of fine titanium powders. This novel process could open markets for green manufacturing of titanium components from jet engines to biomedical implants.

None

2012-01-01T23:59:59.000Z

164

Atomic Josephson vortices  

SciTech Connect

We show that Josephson vortices in a quasi-one-dimensional atomic Bose Josephson junction can be controllably manipulated by imposing a difference of chemical potentials on the atomic Bose-Einstein condensate waveguides forming the junction. This effect, which has its origin in the Berry phase structure of a vortex, turns out to be very robust in the whole range of the parameters where such vortices can exist. We also propose that a Josephson vortex can be created by the phase imprinting technique and can be identified by a specific tangential feature in the interference picture produced by expanding clouds released from the waveguides.

Kaurov, V. M.; Kuklov, A. B. [Department of Engineering Science and Physics, College of Staten Island, CUNY, Staten Island, New York 10314 (United States)

2006-01-15T23:59:59.000Z

165

Atomic Force Microscope  

SciTech Connect

The Atomic Force Microscope (AFM) is a recently developed instrument that has achieved atomic resolution imaging of both conducting and non- conducting surfaces. Because the AFM is in the early stages of development, and because of the difficulty of building the instrument, it is currently in use in fewer than ten laboratories worldwide. It promises to be a valuable tool for obtaining information about engineering surfaces and aiding the .study of precision fabrication processes. This paper gives an overview of AFM technology and presents plans to build an instrument designed to look at engineering surfaces.

Day, R.D.; Russell, P.E.

1988-12-01T23:59:59.000Z

166

Bomb-Pulse Chlorine-36 at the Proposed Yucca Mountain Repository Horizon: An Investigation of Previous Conflicting Results and Collection of New Data  

SciTech Connect

Previous studies Los Alamos National Laboratory (LANL) found elevated ratios of chlorine-36 to total chloride (36Cl/Cl) in samples of rock collected from the Exploratory Studies Facility (ESF) at Yucca Mountain (YM). The data were interpreted as an indication that fluids containing “bomb-pulse” 36Cl reached the repository horizon in the ~50 years since the peak period of above-ground nuclear testing. Due to the significance of 36Cl data to conceptual models of unsaturated zone flow, the United States Geological Survey (USGS) implemented a study to validate the LANL findings. The USGS drilled new boreholes at select locations across zones where bomb-pulse ratios had previously been identified. The drill cores were analyzed at Lawrence Livermore National Laboratory (LLNL). Because consensus was not reached between the USGS/LLNL and LANL on several fundamental points including the presence or absence of bomb-pulse 36Cl, an evaluation by the University of Nevada, Las Vegas (UNLV), was initiated. The overall objectives of the UNLV study were to investigate the source of the validation study’s conflicting results, and to obtain additional data on bomb-pulse isotopes at the repository horizon. UNLV engaged in discussions with previous investigators, reviewed reports, and analyzed archived samples. UNLV also collected new samples of rock from the ESF, soil profiles from the surface of YM, and samples of seep water from inside the ESF. Samples were analyzed for 36Cl/Cl ratios, and 99Tc and 129I in select samples. A column experiment was conducted mimicking the passage of bomb-pulse 36Cl through YM tuff. The work faced several obstacles including an extended shutdown of the tunnel. Only one sample yielded a background corrected 36Cl/Cl ratio that was higher than the accepted bomb-pulse threshold (1250 x 10-15). Specimen 01034214 obtained from the Drill Hole Wash fault (19+33) had a ratio of 1590 ± 80 (1?) x10-15, whereas the other separate sample from this fault zone yielded 1160 ± 50 (1?) x 10-15. Three samples collected from Alcove 6 averaged 490 ± 100 (1?) x10-15; a sample from Sundance Fault resulted in a ratio of 920 ± 60 (1?) x10-15, and a sample from the Bow Ridge Fault produced 530 ± 20 (1?) x10-15. The results are significant because: 1) they tend to be lower than LANL data for comparable samples, albeit in agreement with the range of data produced in the area, and 2) they show that a bomb-pulse 36Cl/Cl ratio was measured in rock collected at the repository horizon level by a second and independent group of investigators (UNLV). Because of time UNLV was not able to replicate the results, and these few data points are insufficient to draw major and definitive conclusions. Leachates of soil samples collected from the surface above the ESF yielded several ratios with bomb-pulse 36Cl, particularly for samples encompassing the wetting front. Soil samples collected above the south ramp, where there was limited soil coverage due to a large amount of rock outcrop, had relatively large ratios ranging from 2170 ± 110 (1?) x10-15 to 5670 ± 350 (1?) x10-15. Soil samples from profiles from above the north ramp ranged from 820 ± 70 (1?) x10-15 to 2390 ± 160 (1?) x10-15, which compare favorably with previous measurements near the site. Water seepage into the ESF south ramp and 36Cl standards made from NIST material were also analyzed. The standards were produced to have nominal 36Cl/Cl ratios (10-15) of 500, 2,500 and 10,000 and the results showed good agreement with the calculated ratios. The seepage samples ranged between 680 ± 40 (1?) x10-15 to 1110 ± 40 (1?) x10-15, consistent with that found for modern meteoric water, with a small bomb-pulse component. Bomb-pulse 36Cl may not have been incorporated in this fast-path water because the surface above the infiltration zone consists mostly of outcrop and the flow pathways have probably mostly been leached. 99Tc was measured in five of nine leaches of ESF rock but poor analytical recoveries and lack of data overlap with 36Cl limit interpretations of these data

Cizdziel, James

2006-07-31T23:59:59.000Z

167

Atomic Scientists Brief Congress  

Science Journals Connector (OSTI)

Topics covered included underground explosions to produce energy, chemicals, or petroleum; advanced reactors capable of producing chemicals; atomic power for space propulsion; direct conversion of heat energy to electricity; and controlled thermonuclear reactions. ... (For details on controlled fusion research see page 46.) ...

1960-04-04T23:59:59.000Z

168

Atomic Power in Japan  

Science Journals Connector (OSTI)

NUCLEAR ENERGY will provide most of the power requirements in Japan by the end of this century. So predicts Charles H. Weaver, vice president in charge of atomic power activities for Westinghouse Electric.Addressing the Conference on Peaceful Uses of ...

1957-05-27T23:59:59.000Z

169

Bohr's model: Extreme atoms  

Science Journals Connector (OSTI)

... by bombarding atoms with accelerated protons, then slow them down by passing them through metallic foil, cool them with cold electrons and trap them with electromagnetic fields. A similar trap ... Curiosity and national pride undoubtedly have a role, with politicians and scientists both looking to stamp their country's name into a new box on the periodic table. But each ...

Richard Van Noorden

2013-06-05T23:59:59.000Z

170

Magnetism and Atomic Structure  

Science Journals Connector (OSTI)

... the information with regard to the atom has been obtained by studying spectra; chemistry, magnetism, X-ray scattering, etc., play only a subsidiary part. We must admit, ... for fresh sources of information. Much may be said in support of the opinion that magnetism will open a new way by which to approach the study of the structure of ...

P. KAPITZA

1927-06-04T23:59:59.000Z

171

High Rydberg Atoms: Newcomers to the Atomic Physics Scene  

Science Journals Connector (OSTI)

...HYDROGEN ATOM, NUCLEAR FUSION 5 : 41 ( 1965 ). BAYFIELD...HIGHLY-EXCITED KR ATOMS BY HF AND HCL MOLECULES, BULLETIN...USING A CW TUNABLE DYE LASER, PHYSICAL REVIEW LETTERS...such diverse fields as laser development, laser isotopeseparation, energy...

Ronald F. Stebbings

1976-08-13T23:59:59.000Z

172

Optical imaging of Rydberg atoms  

E-Print Network (OSTI)

We present an experiment exploring electromagnetically induced transparency (EIT) in Rydberg atoms in order to observe optical nonlinearities at the single photon level. ??Rb atoms are trapped and cooled using a magneto-optical ...

Mazurenko, Anton

2012-01-01T23:59:59.000Z

173

Seaborg Predicts Bright Atomic Future  

Science Journals Connector (OSTI)

Seaborg Predicts Bright Atomic Future ... To explore both the immediate and long-term ramifications of the cutbacks, C&EN talked to the Chairman of the Atomic Energy Commission, Dr. Glenn T. Seaborg . ...

1964-06-15T23:59:59.000Z

174

Closing the circle on the splitting of the atom: The environmental legacy of nuclear weapons production in the United States and what the Department of Energy is doing about it  

SciTech Connect

In the grand scheme of things we are a little more than halfway through the cycle of splitting the atom for weapons purposes. If we visualize this historic cycle as the full sweep of a clockface, at zero hour we would find the first nuclear chain reaction by Enrico Fermi, followed immediately by the Manhattan Project and the explosion of the first atomic bombs. From two o`clock until five, the United States built and ran a massive industrial complex that produced tens of thousands of nuclear weapons. At half past, the Cold War ended, and the United States shut down most of its nuclear weapons factories. The second half of this cycle involves dealing with the waste and contamination from nuclear weapons production - a task that had, for the most part, been postponed into the indefinite future. That future is now upon us. Dealing with the environmental legacy of the Cold War is in many ways as big a challenge for us today as the building of the atomic bomb was for the Manhattan Project pioneers in the 1940s. Our challenges are political and social as well as technical, and we are meeting those challenges. We are reducing risks, treating wastes, developing new technologies, and building democratic institutions for a constructive debate on our future course.

NONE

1996-01-01T23:59:59.000Z

175

Appendix G: Radiation HYDROGEN ATOM  

E-Print Network (OSTI)

. People are exposed to naturally occurring radiation constantly. For example, cosmic radiation; radon effects on the environment and biological systems. Radiation comes from natural and human-made sourcesAppendix G: Radiation #12;#12;P P P E E E N NN HYDROGEN ATOM DEUTERIUM ATOM TRITIUM ATOM HYDROGEN

Pennycook, Steve

176

Appendix A: Radiation HYDROGEN ATOM  

E-Print Network (OSTI)

. People are exposed to naturally occurring radiation constantly. For example, cosmic radiation; radon effects on the environment and biological systems. Radiation comes from natural and human-made sourcesAppendix A: Radiation #12;P P P E E E N NN HYDROGEN ATOM DEUTERIUM ATOM TRITIUM ATOM HYDROGEN

Pennycook, Steve

177

Recent Progress in ultracold atoms  

E-Print Network (OSTI)

and Einstein What is Bose-Einstein condensation (BEC)? #12;300 K to 1 mK 109 atoms 1 mK to 1 mK 108 106 atoms How to make a BEC: Cool atoms at ultra low temperature Laser beams Fluorescence Laser cooling (Doppler

Baltisberger, Jay H.

178

VARIOUS APPLICATIONS OF ZEEMAN ATOMIC ABSORPTION SPECTROSCOPY  

E-Print Network (OSTI)

APPLICATIONS OF ZEEMAN ATOMIC ABSORPTION SPECTROSCOPYthe Zeeman effect to atomic absorption spectroscopy has beenthe Zeeman effect on atomic absorption spectrometry has been

Koizumi, Hideaki

2011-01-01T23:59:59.000Z

179

The feasibility of bomb radiocarbon analysis to support an age-at-length relationship for red abalone, Haliotis rufescens Swainson in northern California  

SciTech Connect

Analysis of bomb generated radiocarbon ({sup 14}C) changes in a red abalone, Haliotis rufescens Swainson shell was used to investigate age-at-length relationships derived from data from a previous multi-year, multi-site tag-recapture study. Shell carbonate was extracted from four successive growth trajectory locations in a single shell with a length of 251 mm MSL. Extraction locations were based on VBGF predictions and chosen to span the initial rise of the {sup 14}C-bomb pulse that is known to have occurred in surface ocean waters during 1958 {+-} 1 y in the northeast Pacific. The close temporal correspondence of the red abalone sample series to regional {Delta}{sup 14}C records demonstrated the utility of the technique for validating age-at-length relationships for the red abalone. The findings provided support for a mean VBGF derived age of 32 y (range 30 to 33 y) for the specimen; however, the analysis of {sup 14}C data indicated that the specimen could be older.

Leaf, R T; Andrews, A H; Cailliet, G M; Brown, T A

2009-01-07T23:59:59.000Z

180

Dirty Bomb Fallout  

SciTech Connect

At present, there is a significant need to develop decontamination agents that can be used effectively after detonation of a radiological dispersal device (RDD) in an urban environment. There is also a need for the development of reproducible test surfaces to be used to determine the efficacy of the agent being developed. Researchers at Lawrence Livermore National Laboratory (LLNL), under the auspices of the US Department of Energy (DoE), conducted a field study to evaluate the deposition of an explosively dispersed radionuclide surrogate (CsCl) on grime-bearing and non-grime-bearing urban surfaces. The goal was to investigate the preparation and contamination of urban surfaces that closely mimic what one would expect to encounter following the detonation of an RDD. Migration of Cs into concrete surfaces was investigated in detail. Many non-proliferation, security and response organizations that have modeled RDD scenarios use cesium-137, as well as cobalt-60, strontium-90, americium-241 as the most likely RDD agents. Cesium-137 is an isotope of concern for possible use in an RDD due to its potential availability resulting from its widespread legitimate use in construction, geotechnical and medical industrial devices. In some Cs-containing instruments the Cesium-137 is present as the highly dispersible and water soluble salt, cesium chloride (CsCl). In this form Cs is able to rapidly disperse in the environment, as witnessed in the 1987 Goiania accident in Brazil, when inadvertent dispersal of a radiotherapy source resulted in fatalities and injuries.

Gates-Anderson, D; Rasmussen, C; Fischer, R; Viani, B; Hu, Q; Sutton, M; McNab, W

2007-05-02T23:59:59.000Z

Note: This page contains sample records for the topic "atomic bomb survivors" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

H-Bomb Tested?  

Science Journals Connector (OSTI)

In furtherance of the President's announcement of Jan. 31, 1950, the test program included experiments contributing to thermonuclear weapons research. ...

1952-11-24T23:59:59.000Z

182

On neutron numbers and atomic masses  

Science Journals Connector (OSTI)

On neutron numbers and atomic masses ... Assigning neutron numbers, correct neutron numbers, and atomic masses and nucleon numbers. ...

R. Heyrovská

1992-01-01T23:59:59.000Z

183

Atomic Energy Commission Takes Over Responsibility for all Atomic...  

National Nuclear Security Administration (NNSA)

Takes Over Responsibility for all Atomic Energy Programs | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the Stockpile...

184

Magnetic trap for thulium atoms  

SciTech Connect

For the first time ultra-cold thulium atoms were trapped in a magnetic quadrupole trap with a small field gradient (20 Gs cm{sup -1}). The atoms were loaded from a cloud containing 4x10{sup 5} atoms that were preliminarily cooled in a magneto-optical trap to the sub-Doppler temperature of 80 {mu}K. As many as 4x10{sup 4} atoms were trapped in the magnetic trap at the temperature of 40 {mu}K. By the character of trap population decay the lifetime of atoms was determined (0.5 s) and an upper estimate was obtained for the rate constant of inelastic binary collisions for spin-polarised thulium atoms in the ground state (g{sub in} < 10{sup -11}cm{sup 3} s{sup -1}). (magnetic traps)

Sukachev, D D; Sokolov, A V; Chebakov, K A; Akimov, A V; Kolachevskii, N N; Sorokin, Vadim N [P N Lebedev Physical Institute, Russian Academy of Sciences, Moscow (Russian Federation)

2011-08-31T23:59:59.000Z

185

ATOMIC ENERGY COMMISSION  

Office of Legacy Management (LM)

' ' ATOMIC ENERGY COMMISSION Frank K. Pittman, Director, bivisioa of Waste &&gement and s- portation, Headquarters j CONTAMItUTED RX-AEC-OWNED OR LEASED FACILITIES' This memorandum responds to your TWX certain information on the above subject. the documentation necessary to answer your available due to the records disposal vailing at the time of release or From records that are available and from disc&ions with most familiar with the transfer operations, &have the current radiological conditibn of transferred property is adequate under present standards. The following tabulations follow the format suggested in your TWX and are grouped to an operations or contract r+ponsibility. A,I Ex-AEC Storage Sites - I r:/ National Stockpile Site '(NSS) and OperatEonal

186

Bettis Atomic Power Laboratory  

SciTech Connect

The Bettis Atomic Power Laboratory (Bettis) is owned by the US Department of Energy (DOE) and has been operated under Government contract by the Westinghouse Electric Corporation since 1949. The Bettis Site in West Mifflin, Pennsylvania conducts research and development work on improved nuclear propulsion plants for US Navy warships and is the headquarters for all of the Laboratory's operations. For many years, environmental monitoring has been performed to demonstrate that the Bettis Site is being operated in accordance with environmental standards. While the annual report describes monitoring practices and results, it does not describe the nature and environmental aspects of work and facilities at the Bettis Site nor give a historical perspective of Bettis' operations. The purpose of this report is to provide this information as well as background information, such as the geologic and hydrologic nature of the Bettis Site, pertinent to understanding the environmental aspects of Bettis operations. Waste management practices are also described.

Not Available

1992-01-01T23:59:59.000Z

187

Rydberg Atoms in Ponderomotive Potentials.  

E-Print Network (OSTI)

??In this thesis, we examine the ponderomotive interaction between an applied optical field and a highly excited Rydberg electron. An atom in a Rydberg state… (more)

Knuffman, Brenton J.

2009-01-01T23:59:59.000Z

188

Absorption properties of identical atoms  

SciTech Connect

Emission rates and other optical properties of multi-particle systems in collective and entangled states differ from those in product ones. We show the existence of similar effects in the absorption probabilities for (anti)symmetrized states of two identical atoms. The effects strongly depend on the overlapping between the atoms and differ for bosons and fermions. We propose a viable experimental verification of these ideas. -- Highlights: •The absorption rates of a pair of identical atoms in product and (anti)symmetrized states are different. •The modifications of the optical properties are essentially determined by the overlapping between the atoms. •The absorption properties differ, in some cases, for bosons and fermions.

Sancho, Pedro, E-mail: psanchos@aemet.es

2013-09-15T23:59:59.000Z

189

EMSL - atomic-resolution imaging  

NLE Websites -- All DOE Office Websites (Extended Search)

atomic-resolution-imaging en Molecular Hydrogen Formation from Proximal Glycol Pairs on TiO2(110). http:www.emsl.pnl.govemslwebpublicationsmolecular-hydrogen-formation-proxima...

190

Magnetism and Atomic Structure. I  

Science Journals Connector (OSTI)

3 January 1921 research-article Magnetism and Atomic Structure. I A. E. Oxley The Royal Society is collaborating with JSTOR to digitize, preserve, and extend access...

1921-01-01T23:59:59.000Z

191

Atom bouncers have it taped  

Science Journals Connector (OSTI)

... University have repeatedly bounced rubidium atoms from magnetic tape of the kind used to record audio signals1. In later experiments, they obtained better results with floppy disks.

Wayne M. Itano

1995-09-28T23:59:59.000Z

192

Workshop Report: Health Physics Journal  

Energy.gov (U.S. Department of Energy (DOE))

Workshop Report on Atomic Bomb Dosimetry Residual Radiation Exposure: Recent Research and Suggestions for Future Studies.

193

Similarity between positronium-atom and electron-atom scattering  

E-Print Network (OSTI)

We employ the impulse approximation for description of positronium-atom scattering. Our analysis and calculations of Ps-Kr and Ps-Ar collisions provide theoretical explanation of the similarity between the cross sections for positronium scattering and electron scattering for a range of atomic and molecular targets observed by S. J. Brawley et al. [Science 330, 789 (2010)].

Fabrikant, I I

2015-01-01T23:59:59.000Z

194

The Atomic City / The Magic of the Atom - 1950's Atomic Energy Commission Documentary  

SciTech Connect

The story of American cities located near atomic power plants, and steps taken monitoring radiation to ensure the safety of the public who live nearby. .

None

2012-06-04T23:59:59.000Z

195

E-Print Network 3.0 - atomization atomic absorption Sample Search...  

NLE Websites -- All DOE Office Websites (Extended Search)

atomic absorption Search Powered by Explorit Topic List Advanced Search Sample search results for: atomization atomic absorption Page: << < 1 2 3 4 5 > >> 1 :coherently trapped in...

196

Bogoliubov theory and bosonic atoms  

E-Print Network (OSTI)

We formulate the Bogoliubov variational principle in a mathematical framework similar to the generalized Hartree-Fock theory. Then we analyze the Bogoliubov theory for bosonic atoms in details. We discuss heuristically why the Bogoliubov energy should give the first correction to the leading energy of large bosonic atoms.

Phan Thanh Nam

2011-09-13T23:59:59.000Z

197

Atomic, Molecular & Optical Sciences  

NLE Websites -- All DOE Office Websites (Extended Search)

Atomic, Molecular and Optical Sciences Atomic, Molecular and Optical Sciences The goal of the program is to understand the structure and dynamics of atoms and molecules using photons and ions as probes. The current program is focussed on studying inner-shell photo-ionization and photo-excitation of atoms and molecules, molecular orientation effects in slow collisions, slowing and cooling molecules, and X-ray photo-excitation of laser-dressed atoms. The experimental and theoretical efforts are designed to break new ground and to provide basic knowledge that is central to the programmatic goals of the Department of Energy (DOE). Unique LBNL facilities such as the Advanced Light Source (ALS), the ECR ion sources at the 88-inch cyclotron, and the National Energy Research Scientific Computing Center (NERSC) are

198

Spectral Emission of Moving Atom  

E-Print Network (OSTI)

A renewed analysis of the H.E. Ives and G.R. Stilwell's experiment on moving hydrogen canal rays (J. Opt. Soc. Am., 1938, v.28, 215) concludes that the spectral emission of a moving atom exhibits always a redshift which informs not the direction of the atom's motion. The conclusion is also evident from a simple energy relation: atomic spectral radiation is emitted as an orbiting electron consumes a portion of its internal energy on transiting to a lower-energy state which however has in a moving atom an additional energy gain; this results in a redshift in the emission frequency. Based on auxiliary experimental information and a scheme for de Broglie particle formation, we give a vigorous elucidation of the mechanism for deceleration radiation of atomic electron; the corresponding prediction of the redshift is in complete agreement with the Ives and Stilwell's experimental formula.

J. X. Zheng-Johansson

2008-03-17T23:59:59.000Z

199

Manhattan Project: Adventures Inside the Atom  

Office of Scientific and Technical Information (OSTI)

ADVENTURES INSIDE THE ATOM ADVENTURES INSIDE THE ATOM General Electric, National Archives (1948) Resources > Library Below is Adventures Inside the Atom, a comic book history of nuclear energy that was produced in 1948 by the General Electric Company. Scroll down to view the full-size images of each page. This publication was produced at the request of the the Assistant Manager for Public Education, Oak Ridge Operations Office, Atomic Energy Commission. It is reproduced here via the National Archives. Adventures Inside the Atom, p. 1 Adventures Inside the Atom, p. 2 Adventures Inside the Atom, p. 3 Adventures Inside the Atom, p. 4 Adventures Inside the Atom, p. 5 Adventures Inside the Atom, p. 6 Adventures Inside the Atom, p. 7 Adventures Inside the Atom, p. 8 Adventures Inside the Atom, p. 9

200

AtomicNuclear Properties  

NLE Websites -- All DOE Office Websites (Extended Search)

HTML_PAGES HTML_PAGES This AtomicNuclearProperties page is under intermittent development. Suggestions and comments are welcome. Please report errors. Chemical elements: For entries in red, a pull-down menu permits selection of the physical state. Cryogenic liquid densties are at the boiling point at 1 atm. 0n 1Ps 1H 2He 3Li 4Be 5B 6C 7N 8O 9F 10Ne 11Na 12Mg 13Al 14Si 15P 16S 17Cl 18Ar 19K 20Ca 21Sc 22Ti 23V 24Cr 25Mn 26Fe 27Co 28Ni 29Cu 30Zn 31Ga 32Ge 33As 34Se 35Br 36Kr 37Rb 38Sr 39Y 40Zr 41Nb 42Mo 43Tc 44Ru 45Rh 46Pd 47Ag 48Cd 49In 50Sn 51Sb 52Te 53I 54Xe 55Cs 56Ba 57La 72Hf 73Ta 74W 75Re 76Os 77Ir 78Pt 79Au 80Hg 81Tl 82Pb 83Bi 84Po 85At 86Rn 87Fr 88Ra 89Ac 104Rf 105Db 106Sg 107Bh 108Hs 109Mt 110Ds 111Rg 112 113 114 115 116 mt 118

Note: This page contains sample records for the topic "atomic bomb survivors" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

In-situ control system for atomization  

DOE Patents (OSTI)

Melt atomizing apparatus comprising a melt supply orifice for supplying the melt for atomization and gas supply orifices proximate the melt supply orifice for supplying atomizing gas to atomize the melt as an atomization spray. The apparatus includes a sensor, such as an optical and/or audio sensor, for providing atomization spray data, and a control unit responsive to the sensed atomization spray data for controlling at least one of the atomizing gas pressure and an actuator to adjust the relative position of the gas supply orifice and melt supply in a manner to achieve a desired atomization spray.

Anderson, Iver E. (Ames, IA); Figliola, Richard S. (Central, SC); Terpstra, Robert L. (Ames, IA)

1995-06-13T23:59:59.000Z

202

Supersonic coal water slurry fuel atomizer  

DOE Patents (OSTI)

A supersonic coal water slurry atomizer utilizing supersonic gas velocities to atomize coal water slurry is provided wherein atomization occurs externally of the atomizer. The atomizer has a central tube defining a coal water slurry passageway surrounded by an annular sleeve defining an annular passageway for gas. A converging/diverging section is provided for accelerating gas in the annular passageway to supersonic velocities.

Becker, Frederick E. (Reading, MA); Smolensky, Leo A. (Concord, MA); Balsavich, John (Foxborough, MA)

1991-01-01T23:59:59.000Z

203

Questions and Answers - Does an atom smasher really smash atoms?  

NLE Websites -- All DOE Office Websites (Extended Search)

is an accelerator? is an accelerator? Previous Question (What is an accelerator?) Questions and Answers Main Index Next Question (Where and how do you get your electrons for your accelerator?) Where and how do you get yourelectrons for your accelerator? Does an atom smasher really smash atoms? Well, yes, they do, but we now prefer to call them by their less aggression-centered name, "particle harmony disrupters." Of course some atom smashers do much more smashing than others. We use electrons in our accelerator to study the nucleus of an atom. Remember that electrons are negative, as are the electrons surrounding the target. Since like charged particles repel each other, our particles have to have enough energy to blast through that electron cloud to get to the nucleus. The electrons then

204

Atoms 2014, 2, 378-381; doi:10.3390/atoms2030378 OPEN ACCESS  

E-Print Network (OSTI)

Atoms 2014, 2, 378-381; doi:10.3390/atoms2030378 OPEN ACCESS atomsISSN 2218-2004 www.mdpi.com/journal/atoms.calisti@univ-amu.fr 3 International Atomic Energy Agency, Atomic and Molecular Data Unit, Nuclear Data Section, P.O. Box for the first two SLSP workshops are for simple atomic systems: the hydrogen atom or hydrogen-like one

205

Chemical factors influencing selenium atomization  

E-Print Network (OSTI)

Atomization. (August 1980) Mary Sue Buren, B, S. , Angelo State University Chairman of Advisory Comm1ttee: Dr. Thomas M. Vickrey Selenium in an acid1c matrix was analyzed using graphite furnace atom1c absorption with Zeeman-effect background correct1on.... Nickel(II} and lanthanum( III) were introduced as matrix modifiers to determine their effect on interferences 1n selenium atom1zation. In add1tion to matr1x mod1ficat1on, surface coating the graphite furnace with z1rconium and tantalum salts was also...

Buren, Mary Sue

2012-06-07T23:59:59.000Z

206

THE INTERACTION OF RARE GAS METASTABLE ATOMS  

E-Print Network (OSTI)

in the study of metastable atom reactions. > 1 it- Fig, laa raetastable rare gas atom, three quantities are necessaryOF iiARE GAS METASTABLF ATOMS Andrew Zun-Foh Wang M a t e r

Wang, A.Z.-F.

2011-01-01T23:59:59.000Z

207

Imaging atoms in 3-D  

ScienceCinema (OSTI)

Berkeley Lab's Peter Ercius discusses "Imaging atoms in 3-D" in this Oct. 28, 2013 talk, which is part of a Science at the Theater event entitled Eight Big Ideas

Ercius, Peter

2014-06-27T23:59:59.000Z

208

ATOMIC ENERGY ACT OF 1946  

NLE Websites -- All DOE Office Websites (Extended Search)

ect of the us0 of atomic energy for civilian purposes upon the social, economic, and political structures of today cannot now bo determined. It is a field in which unknown factors...

209

Quantum information with Rydberg atoms  

Science Journals Connector (OSTI)

Rydberg atoms with principal quantum number n?1 have exaggerated atomic properties including dipole-dipole interactions that scale as n4 and radiative lifetimes that scale as n3. It was proposed a decade ago to take advantage of these properties to implement quantum gates between neutral atom qubits. The availability of a strong long-range interaction that can be coherently turned on and off is an enabling resource for a wide range of quantum information tasks stretching far beyond the original gate proposal. Rydberg enabled capabilities include long-range two-qubit gates, collective encoding of multiqubit registers, implementation of robust light-atom quantum interfaces, and the potential for simulating quantum many-body physics. The advances of the last decade are reviewed, covering both theoretical and experimental aspects of Rydberg-mediated quantum information processing.

M. Saffman; T. G. Walker; K. Mřlmer

2010-08-18T23:59:59.000Z

210

Absorption properties of identical atoms  

E-Print Network (OSTI)

Emission rates and other optical properties of multiparticle systems in collective and entangled states differ from those in product ones. We show the existence of similar effects in the absorption probabilities for (anti)symmetrized states of two identical atoms. The effects strongly depend on the overlapping between the atoms and differ for bosons and fermions. We propose a viable experimental verification of these ideas.

Pedro Sancho

2013-07-31T23:59:59.000Z

211

Selfish atom selects quantum resonances at fractional atomic frequencies  

E-Print Network (OSTI)

We show that the atom as a "quantum entity", driven by an external field in the form of pulse sequence at repetition rate equal to the internal quantum frequency divided by an integer n, responds resonantly. It seeks and finds its characteristic frequencies in any possible combination of its frequencies. This is an indication of self expression by the atom at many sub-frequencies of its own transition frequencies. It is a non-intuitive phenomenon since the external repetition rate has no quantum character, yet the atom responds to it if the rate is equal to 1/n its eigen-frequency. We believe that our results will have implications in other quantum related processes, such as resonant enhancement of chemical reactions and biological processes.

Gennady A. Koganov; Reuben Shuker

2014-09-17T23:59:59.000Z

212

Collection of atomic mercury by electrostatic precipitators  

Science Journals Connector (OSTI)

... Flameless atomic absorption spectroscopy was used to measure the difference in the mercury concentration of gas ...

O. M. G. NEWMAN; D. J. PALMER

1978-10-12T23:59:59.000Z

213

RICE UNIVERSITY Ultracold Collisions in Atomic Strontium  

E-Print Network (OSTI)

RICE UNIVERSITY Ultracold Collisions in Atomic Strontium by Sarah B. Nagel A Thesis Submitted Houston, Texas February, 2008 #12;Abstract Ultracold Collisions in Atomic Strontium by Sarah B. Nagel In this work with atomic Strontium, the atoms are first laser cooled and subse- quently trapped, in a MOT

Killian, Thomas C.

214

Atomic Cascade in Muonic and Hadronic Hydrogen Atoms  

E-Print Network (OSTI)

The atomic cascade in $\\mu^- p$ and $\\pi^- p$ atoms has been studied with the improved version of the extended cascade model in which new quantum mechanical calculations of the differential and integral cross sections of the elastic scattering, Stark transitions and Coulomb de-excitation have been included for the principal quantum number values $n\\le 8$ and the relative energies $E \\ge 0.01$ eV. The $X$-ray yields and kinetic energy distributions are compared with the experimental data.

T. S. Jensen; V. P. Popov; V. N. Pomerantsev

2007-12-18T23:59:59.000Z

215

Observation of relativistic antihydrogen atoms  

SciTech Connect

An observation of relativistic antihydrogen atoms is reported in this dissertation. Experiment 862 at Fermi National Accelerator Laboratory observed antihydrogen atoms produced by the interaction of a circulating beam of high momentum (3 < p < 9 GeV/c) antiprotons and a jet of molecular hydrogen gas. Since the neutral antihydrogen does not bend in the antiproton source magnets, the detectors could be located far from the interaction point on a beamline tangent to the storage ring. The detection of the antihydrogen is accomplished by ionizing the atoms far from the interaction point. The positron is deflected by a magnetic spectrometer and detected, as are the back to back photons resulting from its annihilation. The antiproton travels a distance long enough for its momentum and time of flight to be measured accurately. A statistically significant sample of 101 antihydrogen atoms has been observed. A measurement of the cross section for {bar H}{sup 0} production is outlined within. The cross section corresponds to the process where a high momentum antiproton causes e{sup +} e{sup -} pair creation near a nucleus with the e{sup +} being captured by the antiproton. Antihydrogen is the first atom made exclusively of antimatter to be detected. The observation experiment's results are the first step towards an antihydrogen spectroscopy experiment which would measure the n = 2 Lamb shift and fine structure.

Blanford, Glenn DelFosse

1998-01-01T23:59:59.000Z

216

Atomizing, continuous, water monitoring module  

DOE Patents (OSTI)

A system for continuously analyzing volatile constituents of a liquid is described. The system contains a pump for continuously pumping the liquid to be tested at a predetermined flow rate into an extracting container through a liquid directing tube having an orifice at one end and positioned to direct the liquid into the extracting container at a flow rate sufficient to atomize the liquid within the extracting container. A continuous supply of helium carrier gas at a predetermined flow rate is directed through a tube into the extracting container and co-mingled with the atomized liquid to extract the volatile constituents contained within the atomized liquid. The helium containing the extracted volatile constituents flows out of the extracting container into a mass spectrometer for an analysis of the volatile constituents of the liquid. 3 figs.

Thompson, C.V.; Wise, M.B.

1997-07-08T23:59:59.000Z

217

Background report for the formerly utilized Manhattan Engineer District/Atomic Energy Commission sites program  

SciTech Connect

The Department of Energy is conducting a program to determine radiological conditions at sites formerly used by the Army Corps of Engineers' Manhattan Engineer District and the Atomic Energy Commission in the early years of nuclear energy development. Also included in the program are sites used in the Los Alamos plutonium development program and the Trinity atomic bomb test site. Materials, equipment, buildings, and land became contaminated, primarily with naturally occurring radioactive nuclides. They were later decontaminated in accordance with the standards and survey methods in use at that time. Since then, however, radiological criteria, and proposed guidelines for release of such sites for unrestricted use have become more stringent as research on the effects of low-level radiation has progressed. In addition, records documenting some of these decontamination efforts cannot be found, and the final radiological conditions of the sites could not be adequately determined from the records. As a result, the Formerly Utilized Sites Program was initiated in 1974 to identify these formerly used sites and to reevaluate their radiological status. This report covers efforts through June 1980 to determine the radiological status of sites for which the existing conditions could not be clearly defined. Principal contractor facilities and associated properties have already been identified and activities are continuing to identify additional sites. Any new sites located will probably be subcontractor facilities and areas used for disposal of contractor waste or equipment; however, only limited information regarding this equipment and material has been collected to date. As additional information becomes available, supplemental reports will be published.

None

1980-09-01T23:59:59.000Z

218

Vibrational Modes of Adsorbed Atoms  

E-Print Network (OSTI)

for AronXe B. Neon Ar The lowest surface m ver g.ur ace mode branc mo d o' td 'th es of the " rin " ce e wit an adsorbate of modes assoc' tia ed with th e; there are for the ads stion, the bra h sorbate atoms I c 1.ons ranch labeled 2H s. n... , are the real ads teristic force con t tons ants for ad is evident that in Fi . 2 t "heavier" than th ig. the adsorbate is n e substrate M & terpretation b M, ) in tkis in- ecause the weaknes th l' ht ofth ds o ke adsorbate atoms (m, &m, IBRATIQNAI...

LAWRENCE, WR; Allen, Roland E.

1977-01-01T23:59:59.000Z

219

Relativistic atomic beam spectroscopy II  

SciTech Connect

The negative ion of H is one of the simplest 3-body atomic systems. The techniques we have developed for experimental study of atoms moving near speed of light have been productive. This proposal request continuing support for experimental studies of the H{sup -} system, principally at the 800 MeV linear accelerator (LAMPF) at Los Alamos. Four experiments are currently planned: photodetachment of H{sup -} near threshold in electric field, interaction of relativistic H{sup -} ions with matter, high excitations and double charge escape in H{sup -}, and multiphoton detachment of electrons from H{sup -}.

NONE

1989-12-31T23:59:59.000Z

220

Atomic-binding-energy oscillations  

Science Journals Connector (OSTI)

We investigate the oscillatory supplement to the statistical nonrelativistic binding-energy formula for neutral atoms. The semiclassical approach proves capable of deriving these oscillations. It turns out that their amplitude is proportional to Z4/3 (Z is the number of electrons), and that their period is determined by the maximum angular momentum available in Thomas-Fermi atoms, i.e., 0.928Z1/3. Our calculation also provides an understanding of the peculiar shape of the oscillations, which show sharp minima and wide, structured maxima.

Berthold-Georg Englert and Julian Schwinger

1985-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "atomic bomb survivors" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Dental and maxillofacial abnormalities in long-term survivors of childhood cancer: effects of treatment with chemotherapy and radiation to the head and neck  

SciTech Connect

Sixty-eight long-term survivors of childhood cancer were evaluated for dental and maxillofacial abnormalities. Forty-five patients had received maxillofacial radiation for lymphoma, leukemia, rhabdomyosarcoma, and miscellaneous tumors. Forty-three of the 45 patients and the remaining 23 who had not received maxillofacial radiation also received chemotherapy. Dental and maxillofacial abnormalities were detected in 37 of the 45 (82%) radiated patients. Dental abnormalities comprised foreshortening and blunting of roots, incomplete calcification, premature closure of apices, delayed or arrested tooth development, and caries. Maxillofacial abnormalities comprised trismus, abnormal occlusal relationships, and facial deformities. The abnormalities were more severe in those patients who received radiation at an earlier age and at higher dosages. Possible chemotherapeutic effects in five of 23 patients who received treatment for tumors located outside the head and neck region comprised acquired amelogenesis imperfecta, microdontia of bicuspid teeth, and a tendency toward thinning of roots with an enlarged pulp chamber. Dental and maxillofacial abnormalities should be recognized as a major consequence of maxillofacial radiation in long-term survivors of childhood cancer, and attempts to minimize or eliminate such sequelae should involve an effective interaction between radiation therapists, and medical and dental oncologists.

Jaffe, N.; Toth, B.B.; Hoar, R.E.; Ried, H.L.; Sullivan, M.P.; McNeese, M.D.

1984-06-01T23:59:59.000Z

222

Anticipating the atom: popular perceptions of atomic power before Hiroshima  

E-Print Network (OSTI)

to spontaneously generate light and heat. s Theory chased research after the turn of the century. Rutherford and his partner Frederick Soddy, in Montreal in 1902, noticed that the heaviest radioactive elements were slowly changing into lighter elements, throwing... the Atlantic. More importantly, in 1908, the final chapter of Frederick Soddy's The Jnterpretati on of Radium, a collection of six free popular lectures given at the University of Glasgow, speculated on the possibility of controlling the rate of atomic...

d'Emal, Jacques-Andre Christian

2012-06-07T23:59:59.000Z

223

Preliminary steps to the Atomic Energy Commission  

NLE Websites -- All DOE Office Websites (Extended Search)

steps to the Atomic Energy Commission By October 1946, General Groves had seen the writing on the wall. The Manhattan District was destined to give up the atomic energy program to...

224

Moving closer to the Atomic Energy Commission  

NLE Websites -- All DOE Office Websites (Extended Search)

Moving closer to the Atomic Energy Commission Last week we examined some events in Oak Ridge resulting from the struggle for control of atomic weapons. There was also a transition...

225

UNITED STATES ATOMIC ENERGY COMMISSION  

Office of Legacy Management (LM)

I(S.0 -01: I(S.0 -01: SPECIAL NUCLEAR MATERIAL LlCEWSE Pursuant to the Atomic Energy Act of 1954 and Title 10, Code of Federal Regulations, Chapter 1, Part 70, "Special Nuclear Material Regulations," o. license is hereby issued authorizing the licensee to receive and possess the special nuclear material designated below; to use such special nuclear material for the purpose(s) and at the place(s) designated below; and to transfer such material to persons' authorized to receive it in accordance with the regulations in said Port. This license shall be deemed to contain the conditions specified in Section 70.32(a) of said regulations, and is subject to all applicable rules, regtdations, and orders of the Atomic Energy Commission now or hereafter in

226

The Modified Embedded Atom Method  

SciTech Connect

Recent modifications have been made to generalize the Embedded Atom Method (EAM) to describe bonding in diverse materials. By including angular dependence of the electron density in an empirical way, the Modified Embedded Atom Method (MEAM) has been able to reproduce the basic energetic and structural properties of 45 elements. This method is ideally suited for examining the interfacial behavior of dissimilar materials. This paper explains in detail the derivation of the method, shows how the parameters of the MEAM are determined directly from experiment or first principles calculations, and examines the quality of the reproduction of the database. Materials with fcc, bcc, hcp, and diamond cubic crystal structure are discussed. A few simple examples of the application of the MEAM to surfaces and interfaces are presented. Calculations of pullout of a SiC fiber in a diamond matrix as a function of applied stress show non-uniform deformation of the fiber.

Baskes, M.I.

1994-08-01T23:59:59.000Z

227

Muon bremsstrahlung on heavy atoms  

Science Journals Connector (OSTI)

The cross section for high energy muon bremsstrahlung on heavy atoms is calculated without the use of the Born approximation. It is shown that the correction to the Born approximation in the region of momentum transfers q of the order of ?c has the same order of magnitude as the well-known correction of Davies, Bethe, and Maximon. It is shown also that these corrections have different signs and nearly compensate each other.

Yu. M. Andreev and E. V. Bugaev

1997-02-01T23:59:59.000Z

228

The Future of Atomic Energy  

DOE R&D Accomplishments (OSTI)

There is definitely a technical possibility that atomic power may gradually develop into one of the principal sources of useful power. If this expectation will prove correct, great advantages can be expected to come from the fact that the weight of the fuel is almost negligible. This feature may be particularly valuable for making power available to regions of difficult access and far from deposits of coal. It also may prove a great asset in mobile power units for example in a power plant for ship propulsion. On the negative side there are some technical limitations to be applicability of atomic power of which perhaps the most serious is the impossibility of constructing light power units; also there will be some peculiar difficulties in operating atomic plants, as for example the necessity of handling highly radioactive substances which will necessitate, at least for some considerable period, the use of specially skilled personnel for the operation. But the chief obstacle in the way of developing atomic power will be the difficulty of organizing a large scale industrial development in an internationally safe way. This presents actually problems much more difficult to solve than any of the technical developments that are necessary, It will require an unusual amount of statesmanship to balance properly the necessity of allaying the international suspicion that arises from withholding technical secrets against the obvious danger of dumping the details of the procedures for an extremely dangerous new method of warfare on a world that may not yet be prepared to renounce war. Furthermore, the proper balance should be found in the relatively short time that will elapse before the 'secrets' will naturally become open knowledge by rediscovery on part of the scientists and engineers of other countries.

Fermi, E.

1946-05-27T23:59:59.000Z

229

Atomic Ordering Enhanced Electrocatalytic Activity of Nanoalloys...  

NLE Websites -- All DOE Office Websites (Extended Search)

Ordering Enhanced Electrocatalytic Activity of Nanoalloys for Oxygen Reduction Reaction. Atomic Ordering Enhanced Electrocatalytic Activity of Nanoalloys for Oxygen Reduction...

230

Classical Radiative Cascade in Antiproton Atoms  

SciTech Connect

An interrelation between radiative cascade transitions and annihilation rates in antiproton atoms is considered. The population of antiproton atom energy levels is described by a classical distribution function f(n,l), determining intensities of spectral lines in antiproton atoms. A strong dependence of spectral line intensities on the nuclear size is shown which could be used for the determination of effective nuclear radius.

Bureyeva, L. [Institute of Spectroscopy of the RAS, Troitsk, Moscow Reg., 142190 (Russian Federation); Lisitsa, V. [Nuclear Fusion Institute, Russian Research Center 'Kurchatov Institute' Moscow (Russian Federation); Putlitz, G. zu [Physikalisches Institut, Universitaet Heidelberg, Philosophenweg 12, 69120 Heidelberg (Germany)

2005-10-26T23:59:59.000Z

231

Sources of polarized ions and atoms  

SciTech Connect

In this presentation we discuss methods of producing large quantities of polarized atoms and ions (Stern-Gerlach separation, optical pumping, and spin-exchange) as well as experimental methods of measuring the degree of polarization of atomic systems. The usefulness of polarized atoms in probing the microscopic magnetic surface properties of materials will also be discussed. 39 refs., 5 figs., 2 tabs.

Cornelius, W.D.

1988-01-01T23:59:59.000Z

232

Atoms, photons, and Information Andrew Silberfarb  

E-Print Network (OSTI)

Atoms, photons, and Information by Andrew Silberfarb B.S. California Institute of Technology, 1998 #12;Atoms, photons, and Information by Andrew Silberfarb ABSTRACT OF DISSERTATION Submitted in Partial Albuquerque, New Mexico March, 2006 #12;Atoms, photons, and Information by Andrew Silberfarb B.S. California

Deutsch, Ivan H.

233

Stark spectroscopy on rare gas atoms  

E-Print Network (OSTI)

Stark spectroscopy on rare gas atoms PROEFSCHRIFT ter verkrijging van de graad van doctor aan de-DATA LIBRARY TECHNISCHE UNIVERSITEIT EINDHOVEN Jiang, Tao Stark spectroscopy on rare gas atoms / by Tao Jiang / gasontladingen Subject headings : plasma diagnostics / Stark effect / optogalvanic spectroscopy / atomic emission

Eindhoven, Technische Universiteit

234

The Reaction of Hydrogen Atoms with Ethylene  

Science Journals Connector (OSTI)

...research-article The Reaction of Hydrogen Atoms with Ethylene M. P. Halstead D. A. Leathard R...the reaction between hydrogen atoms and ethylene in a discharge-flow system at 290 3...argon were used and the hydrogen atom and ethylene flow rates were in the ranges 5 to 10...

1970-01-01T23:59:59.000Z

235

Riso Report No. Danish Atomic Energy Commission  

E-Print Network (OSTI)

fM O o 8- OL '·O c/i Riso Report No. Danish Atomic Energy Commission Research Establishment Riso/t on exchangefrom: Library, Danish Atomic Energy Commission, Risd, Roskilde, Denmark #12;May, 1966 Ris6 Report No Jagiellonski Institute of Physics Krakow, Poland and P. A. Lindgård Mogensen The Danish Atomic Energy

236

Danish Atomic Energy Commission Research Establishment Riso  

E-Print Network (OSTI)

10 Ol CM l-l I S l ^. n ·H Danish Atomic Energy Commission Research Establishment Riso Chemistry Atomic Energy Commission Z. Fordos, Concrete Research Laboratory Karlstrup M. Skytte, Betonvarefabriken. E. Bjergbakke, Accelerator Dept. Danish Atomic Energy Commission Z. FSrdos, Concrete Research

237

so Ris Report * Danish Atomic Energy Commission  

E-Print Network (OSTI)

so Risø Report r- 6 §* Danish Atomic Energy Commission 2 Research Establishment Risø Incorporation Commission Research Establishment Risø by lb Larsen Danish Atomic Energy Commission Research Establishment in Bitumen of Low-Level Radioactive Waste Water Evaporator Concentrate at the Danish Atomic Energy Com

238

Left alone, palladium atoms get the job done | EMSL  

NLE Websites -- All DOE Office Websites (Extended Search)

Left alone, palladium atoms get the job done Left alone, palladium atoms get the job done Isolated atoms tackle carbon monoxide, potentially reducing engine emissions A vehicle's...

239

Self-corrected Sensors Based On Atomic Absorption Spectroscopy...  

NLE Websites -- All DOE Office Websites (Extended Search)

corrected Sensors Based On Atomic Absorption Spectroscopy For Atom Flux Measurements In Molecular Beam Epitaxy. Self-corrected Sensors Based On Atomic Absorption Spectroscopy For...

240

Understanding Atom Probe Tomography of Oxide-Supported Metal...  

NLE Websites -- All DOE Office Websites (Extended Search)

Atom Probe Tomography of Oxide-Supported Metal Nanoparticles by Correlation with Atomic Resolution Electron Understanding Atom Probe Tomography of Oxide-Supported Metal...

Note: This page contains sample records for the topic "atomic bomb survivors" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Cooling and Trapping Atoms Atoms are slowed and cooled by radiation pressure from laser light  

E-Print Network (OSTI)

Cooling and Trapping Atoms Atoms are slowed and cooled by radiation pressure from laser light and then trapped in a bottle whose "walls" are magnetic fields. Cooled atoms are ideal for exploring basic. research has traditionally been the study of the intrinsic prop erties of isolated atoms. In the early part

Johannesson, Henrik

242

Atomic flux measurement by diode-laser-based atomic absorption spectroscopy  

E-Print Network (OSTI)

Atomic flux measurement by diode-laser-based atomic absorption spectroscopy Weizhi Wang,a) R. H, California 94305 Received 5 May 1999; accepted 6 June 1999 Diode-laser-based atomic absorption AA sensors- quirements, and only the QCM measures the flux. Lamp- based atomic absorption AA sensors have been success

Fejer, Martin M.

243

NAAP Hydrogen Atom 1/9 The Hydrogen Atom Student Guide  

E-Print Network (OSTI)

Name: NAAP ­ Hydrogen Atom 1/9 The Hydrogen Atom ­ Student Guide Background Material Carefully read and the Quantum model represent the Hydrogen atom. In some cases they both describe things in the same way frequency, smaller energy, and the same velocity through space as a blue photon". #12;NAAP ­Hydrogen Atom 2

Farritor, Shane

244

The 1993 atomic mass evaluation: (I) Atomic mass table  

Science Journals Connector (OSTI)

This paper is the first of a series of four. In it, a table is given to replace the 1983 atomic mass table. The differences with the earlier table are briefly discussed and information is given of interest for the users of this table. Part II of this series gives values for several derived quantities (decay-, separation- and reaction energies), part III shows graphs of several of those quantities, and part IV gives a list of input data and full information on the used input data and on the procedures used in deriving the tables in the preceding parts.

G. Audi; A.H. Wapstra

1993-01-01T23:59:59.000Z

245

CERTIFICATION DOCKET WESTINGHOUSE ATOMIC POWER DEVELOPMENT PLANT  

Office of Legacy Management (LM)

WESTINGHOUSE ATOMIC POWER DEVELOPMENT PLANT WESTINGHOUSE ATOMIC POWER DEVELOPMENT PLANT EAST PITTSBURGH PLANT FOREST HILLS PITTSBURGH, PENNSYLVANIA Department of Energy Office of Nuclear Energy Office of Terminal Waste Disposal and Remedial Action Division of Remedial Action Projects ..-.. --__- _".-.-l--_--l -_._ _- --- ~~~. . ..~ CONTENTS Page - - I NTRODUCTI ON 1 Purpose 1 Docket Contents 1 Exhibit I: Summary of Activities at Westinghouse Atomic Power Development Plant, East Pittsburgh Plant, Forest Hills, Pittsburgh, Pennsylvania I-l Exhibit II: Documents Supporting the Certification of Westinghouse Atomic Power Development Plant, East Pittsburgh Plant, Forest Hills, Pittsburgh, Pennsylvania iii II-1 . . .- .__.^ I ^_... _.-__^-____-. - CERTIFICATION DOCKET WESTINGHOUSE ATOMIC POWER DEVELOPMENT PLANT

246

Princeton Plasma Physics Lab - General Atomics (GA)  

NLE Websites -- All DOE Office Websites (Extended Search)

general-atomics-ga General general-atomics-ga General Atomics en The Scorpion's Strategy: "Catch and Subdue" http://www.pppl.gov/node/1132

American Fusion News Category: 
atomics-ga">General Atomics (GA)
247

Electromagnetically induced grating with maximal atomic coherence  

SciTech Connect

We describe theoretically an atomic diffraction grating that combines an electromagnetically induced grating with a coherence grating in a double-{Lambda} atomic system. With the atom in a condition of maximal coherence between its lower levels, the combined gratings simultaneously diffract both the incident probe beam as well as the signal beam generated through four-wave mixing. A special feature of the atomic grating is that it will diffract any beam resonantly tuned to any excited state of the atom accessible by a dipole transition from its ground state.

Carvalho, Silvania A.; Araujo, Luis E. E. de [Instituto de Fisica ''Gleb Wataghin'', Universidade Estadual de Campinas, Campinas-SP, 13083-859 Sao Paulo (Brazil)

2011-10-15T23:59:59.000Z

248

Laser-induced "two-atom" coherence  

Science Journals Connector (OSTI)

Our analysis shows that if an electromagnetic field excites a coherent superposition of states of two different types of atoms, then the results of a collision of those two atoms can be quite different from the usual dephasing that a coherently excited atom suffers upon collision with another atom. We present the concept of "two-atom" coherence as one feature of this interaction where the field of a given wavelength may interact with the system coherently over a wide range of internuclear distances.

Munir H. Nayfeh and G. B. Hillard

1984-04-01T23:59:59.000Z

249

The Atomic Energy Commission By Alice Buck  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Atomic Energy Atomic Energy Commission By Alice Buck July 1983 U.S. Department of Energy Office of Management Office of the Executive Secretariat Office of History and Heritage Resources 1 Introduction Almost a year after World War II ended, Congress established the United States Atomic Energy Commission to foster and control the peacetime development of atomic science and technology. Reflecting America's postwar optimism, Congress declared that atomic energy should be employed not only in the Nation's defense, but also to promote world peace, improve the public welfare, and strengthen free competition in private

250

Atomic Structure Calculations from the Los Alamos Atomic Physics Codes  

DOE Data Explorer (OSTI)

The well known Hartree-Fock method of R.D. Cowan, developed at Los Alamos National Laboratory, is used for the atomic structure calculations. Electron impact excitation cross sections are calculated using either the distorted wave approximation (DWA) or the first order many body theory (FOMBT). Electron impact ionization cross sections can be calculated using the scaled hydrogenic method developed by Sampson and co-workers, the binary encounter method or the distorted wave method. Photoionization cross sections and, where appropriate, autoionizations are also calculated. Original manuals for the atomic structure code, the collisional excitation code, and the ionization code, are available from this website. Using the specialized interface, you will be able to define the ionization stage of an element and pick the initial and final configurations. You will be led through a series of web pages ending with a display of results in the form of cross sections, collision strengths or rates coefficients. Results are available in tabular and graphic form.

Cowan, R. D.

251

Atomic Spectroscopy and Separated Isotopes  

Science Journals Connector (OSTI)

The advantages in the use of separated isotopes in atomic spectroscopy for the determination of nuclear momentsI ? Q and for studies of the isotope-shift phenomena are discussed. Illustrations of spectra are given for mercury uranium and samarium. In addition a summary is given of twenty-two so-called problem nuclei i.e. those naturally occurring isotopes for which the nuclear moments are completely uncertain. Concluding remarks are made on such problems as the evaluation of the absolute magnitude of isotope shifts the role of “forbidden transitions” in isotope spectra and the potential future value of spectro-isotopic assay techniques.

J. R. McNally Jr.

1952-01-01T23:59:59.000Z

252

Bomb Threat Bomb Threat Caller's Sex Age Accent  

E-Print Network (OSTI)

Excited Distinct Clearing throat Slow Slurred Deep breathing Rapid Nasal Cracking voice Soft Stutter

253

Sensing mode atomic force microscope  

DOE Patents (OSTI)

An atomic force microscope utilizes a pulse release system and improved method of operation to minimize contact forces between a probe tip affixed to a flexible cantilever and a specimen being measured. The pulse release system includes a magnetic particle affixed proximate the probe tip and an electromagnetic coil. When energized, the electromagnetic coil generates a magnetic field which applies a driving force on the magnetic particle sufficient to overcome adhesive forces exhibited between the probe tip and specimen. The atomic force microscope includes two independently displaceable piezo elements operable along a Z-axis. A controller drives the first Z-axis piezo element to provide a controlled approach between the probe tip and specimen up to a point of contact between the probe tip and specimen. The controller then drives the first Z-axis piezo element to withdraw the cantilever from the specimen. The controller also activates the pulse release system which drives the probe tip away from the specimen during withdrawal. Following withdrawal, the controller adjusts the height of the second Z-axis piezo element to maintain a substantially constant approach distance between successive samples.

Hough, Paul V. C. (Port Jefferson, NY); Wang, Chengpu (Upton, NY)

2003-01-01T23:59:59.000Z

254

Hydrogen Atom in Relativistic Motion  

E-Print Network (OSTI)

The Lorentz contraction of bound states in field theory is often appealed to in qualitative descriptions of high energy particle collisions. Surprisingly, the contraction has not been demonstrated explicitly even in simple cases such as the hydrogen atom. It requires a calculation of wave functions evaluated at equal (ordinary) time for bound states in motion. Such wave functions are not obtained by kinematic boosts from the rest frame. Starting from the exact Bethe-Salpeter equation we derive the equal-time wave function of a fermion-antifermion bound state in QED, i.e., positronium or the hydrogen atom, in any frame to leading order in alpha. We show explicitly that the bound state energy transforms as the fourth component of a vector and that the wave function of the fermion-antifermion Fock state contracts as expected. Transverse photon exchange contributes at leading order to the binding energy of the bound state in motion. We study the general features of the corresponding fermion-antifermion-photon Fock states, and show that they do not transform by simply contracting. We verify that the wave function reduces to the light-front one in the infinite momentum frame.

M. Jarvinen

2005-04-11T23:59:59.000Z

255

Congressional responses to French atomic policies, 1958 - 1964  

E-Print Network (OSTI)

of amendments thxough 1958, much of this information was made available to friendly nations for peaoeful applications, how- ever, and oertain nuclear weapons technology was provided to Great Britain, which had assisted in the developaent of the fizst bombs.... Fzance, however, continued to be excluded from any nucl~ ww. pons assistance ~ In 1958, the Eisenhower Adainistzation atteapted negotiations iv to provide Fzance with a nuclear submarine, but Congzsss strongly opposed this venture. Neanwhile...

Anderson, Bobby Duane

2012-06-07T23:59:59.000Z

256

The Harnessed Atom | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Services » The Harnessed Atom Services » The Harnessed Atom The Harnessed Atom The Harnessed Atom The Harnessed Atom is a new middle school science, technology, engineering, and math (STEM) curriculum extension that focuses on nuclear science and energy. It offers teachers accurate, unbiased, and up-to-date information on the roles that energy and nuclear science play in our lives. The curriculum includes essential principles and fundamental concepts of energy science. This teacher's kit is an updated and expanded edition of the acclaimed 1985 Harnessed Atom curriculum from the U.S. Department of Energy. It was developed with extensive input from classroom teachers across the country in pilot test reviews and workshops, as well as technical reviews from scientists and experts at universities, professional societies, and

257

An output coupler for Bose condensed atoms The observations of BEC have stimulated interest in atom lasers, coherent sources of  

E-Print Network (OSTI)

An output coupler for Bose condensed atoms The observations of BEC have stimulated interest in atom lasers, coherent sources of atomic matter waves. The build-up of atoms in the ground state of a magnetic. We demonstrated a scheme for doing this with Bose condensed atoms [1]. A variable fraction of atoms

258

Manhattan Project: Atomic Bombardment, 1932-1938  

Office of Scientific and Technical Information (OSTI)

Solvay Physics Conference, Brussels, October 1933 ATOMIC BOMBARDMENT Solvay Physics Conference, Brussels, October 1933 ATOMIC BOMBARDMENT (1932-1938) Events > Atomic Discoveries, 1890s-1939 A Miniature Solar System, 1890s-1919 Exploring the Atom, 1919-1932 Atomic Bombardment, 1932-1938 The Discovery of Fission, 1938-1939 Fission Comes to America, 1939 M. Stanley Livingston and Ernest O. Lawrence in front of a 27-inch cyclotron, Rad Lab, University of California, Berkeley, 1934. In the 1930s, scientists learned a tremendous amount about the structure of the atom by bombarding it with sub-atomic particles. Ernest O. Lawrence's cyclotron, the Cockroft-Walton machine, and the Van de Graaff generator, developed by Robert J. Van de Graaff at Princeton University, were particle accelerators designed to bombard the nuclei of various elements to disintegrate atoms. Attempts of the early 1930s to split atoms, however, required huge amounts of energy because the first accelerators used proton beams and alpha particles as sources of energy. Since protons and alpha particles are positively charged, they Albert Einstein met substantial resistance from the positively charged target nucleus when they attempted to penetrate atoms. Even high-speed protons and alpha particles scored direct hits on a nucleus only approximately once in a million tries. Most simply passed by the target nucleus. Not surprisingly, Ernest Rutherford, Albert Einstein (right), and Niels Bohr regarded particle bombardment as useful in furthering knowledge of nuclear physics but believed it unlikely to meet public expectations of harnessing the power of the atom for practical purposes anytime in the near future. In a 1933 interview, Rutherford called such expectations "moonshine." Einstein compared particle bombardment with shooting in the dark at scarce birds, while Bohr, the Danish Nobel laureate, agreed that the chances of taming atomic energy were remote.

259

Statistical atom: Some quantum improvements  

Science Journals Connector (OSTI)

The Thomas-Fermi model is improved by simultaneously introducing three different quantum corrections. The first concerns the nonlocality of quantum mechanics; we go beyond the von Weizsäcker approach by including arbitrary powers of the gradient of the single-particle potential. The second is a special treatment of the strongly bound electrons, which removes the incorrect statistical description of the vicinity of the nucleus. In the third we generalize Dirac's way of handling the exchange interaction by, again, including gradient effects to arbitrary order. All this is done in the framework of a "potential-functional method" and results in a new differential equation for the potential. The comparison of numerical results with both experimental and Hartree-Fock data for the mean-squared distance indicates a superiority of the new statistical theory over the Hartree-Fock theory, at least for the description of the outer reaches of the atom.

Berthold-Georg Englert and Julian Schwinger

1984-05-01T23:59:59.000Z

260

Ps-atom scattering at low energies  

E-Print Network (OSTI)

A pseudopotential for positronium-atom interaction, based on electron-atom and positron-atom phase shifts, is constructed, and the phase shifts for Ps-Kr and Ps-Ar scattering are calculated. This approach allows us to extend the Ps-atom cross sections, obtained previously in the impulse approximation [Phys. Rev. Lett. 112, 243201 (2014)], to energies below the Ps ionization threshold. Although experimental data are not available in this low-energy region, our results describe well the tendency of the measured cross sections to drop with decreasing velocity at $venergy region, in contrast to the inter...

Fabrikant, I I

2015-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "atomic bomb survivors" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Gas Atomization of Stainless Steel - Slow Motion  

SciTech Connect

Stainless steel liquid atomized by supersonic argon gas into a spray of droplets at ~1800şC. Atomization of metal requires high pressure gas and specialized chambers for cooling and collecting the powders without contamination. The critical step for morphological control is the impingement of the gas on the melt stream. The video is a black and white high speed video of a liquid metal stream being atomized by high pressure gas. This material was atomized at the Ames Laboratory's Materials Preparation Center http://www.mpc.ameslab.gov

None

2011-01-01T23:59:59.000Z

262

Interfacing ultracold atoms and mechanical oscillators.  

E-Print Network (OSTI)

??In this thesis I present experiments investigating controlled coupling between mechanical oscillators and ultracold atoms. I report on three different coupling mechanisms. In a first… (more)

Camerer, Stephan

2011-01-01T23:59:59.000Z

263

Cold collisions of Rb and Cs atoms  

E-Print Network (OSTI)

Jamieson,M.J. Sarbazi-Azad,H. 18'th International Conference on Atomic Physics, MIT, Cambridge, MA, USA Academic Press

Jamieson, M.J.

264

Nonlinear optics with two trapped atoms  

SciTech Connect

We show theoretically that two atomic dipoles in a resonator constitute a nonlinear medium, whose properties can be controlled through the relative position of the atoms inside the cavity and the detuning and intensity of the driving laser. We identify the parameter regime where the system operates as a parametric amplifier, based on the cascade emission of the collective dipole of the atoms, and determine the corresponding spectrum of squeezing of the field at the cavity output. This dynamics might be observed as a result of self-organization of laser-cooled atoms in resonators.

Fernandez-Vidal, Sonia; Zippilli, Stefano [Departament de Fisica, Universitat Autonoma de Barcelona, E-08193 Bellaterra (Spain); ICFO-Institut de Ciencies Fotoniques, E-08860 Castelldefels, Barcelona (Spain); Morigi, Giovanna [Departament de Fisica, Universitat Autonoma de Barcelona, E-08193 Bellaterra (Spain)

2007-11-15T23:59:59.000Z

265

United States Atomic Energy Commission formed  

NLE Websites -- All DOE Office Websites (Extended Search)

formed As the United Nations Atomic Energy Commission failed to come to grips with the growing nuclear weapons problem, the United States worked to establish its own formal...

266

Atomic Physics and Thermonuclear Fusion Research  

Science Journals Connector (OSTI)

Presently thermonuclear fusion research is faced with a number of atomic and molecular physics problems depending on the type of high-temperature plasma investigated. The present article discusses some particular atomic physics aspects in connection with magnetically confined plasmas (Tokamaks, Stellarators): (1) rate equations for density, momentum and energy with application to plasmas; (2) initial phase of Tokamak plasmas; (3) influence of impurity radiation on operating conditions of fusion plasmas in general and on Tokamak plasmas in particular; (4) influence of atomic elementary reactions on thermodynamic plasma properties; (5) level structures of highly ionized atoms; (6) spectroscopic diagnostic problems.

H W Drawin

1981-01-01T23:59:59.000Z

267

A History of the Atomic Energy Commission  

Energy.gov (U.S. Department of Energy (DOE))

A History of the Atomic Energy Commission - written by Alice L. BuckWashington, D.C.: U.S. Department of Energy, July 1983. 41 pp. 

268

Using Atomic Clocks to Detect Gravitational Waves  

E-Print Network (OSTI)

Atomic clocks have recently reached a fractional timing precision of $test masses separated by less than a GW wavelength, currently envisioned for the eLISA mission.

Loeb, Abraham

2015-01-01T23:59:59.000Z

269

Atomic 'mismatch' creates nano 'dumbbells' | Argonne National...  

NLE Websites -- All DOE Office Websites (Extended Search)

Brochures and Reports Summer Science Writing Internship Atomic 'mismatch' creates nano 'dumbbells' By Jared Sagoff * December 4, 2014 Tweet EmailPrint ARGONNE, Ill. - Like...

270

Directly correlated transmission electron microscopy and atom...  

NLE Websites -- All DOE Office Websites (Extended Search)

Directly correlated transmission electron microscopy and atom probe tomography of grain boundary oxidation in a Ni-Al binary Directly correlated transmission electron microscopy...

271

Optical control of ground-state atomic orbital alignment: Cl,,2 P3/2... atoms  

E-Print Network (OSTI)

Optical control of ground-state atomic orbital alignment: Cl,,2 P3/2... atoms from HCl,,v=2,J=1-of-flight mass spectrometry. The 35 Cl 2 P3/2 atoms are aligned by two mechanisms: 1 the time-dependent transfer is conserved during the photodissociation and thus contributes to the total 35 Cl 2 P3/2 photofragment atomic

Zare, Richard N.

272

Chapter 7 - Nanofabrication via atom optics  

Science Journals Connector (OSTI)

Publisher Summary This chapter presents a review of the basic concepts that are used for atomoptical nanofabrication, as well as a discussion of the progress to date in realizations of the techniques. As a new approach to nanofabrication, atom optics offers the possibility of several advantages over existing techniques. For one thing, the fundamental diffraction limit imposed on resolution, present in any process where one attempts to focus particles (whether photons, charged particles, or neutral atoms), can be very small for atoms. Furthermore, atom optics can be used both in a direct deposition mode, where neutral atoms are focused by atom lenses into an extremely fine spot as they deposit onto a substrate, and also in a lithography mode, where focused atoms are used to expose a suitable resist material. In the direct deposition mode, nanostructures can be fabricated in a clean, resist-free environment, with little or no damage to the underlying substrate. Thus, the process can be very localized, with very little scattering and resist penetration. In either mode, parallelism, which is advantageous when issues of fabrication speed and/or long-range spatial coherence are important, can be achieved with very high dimensional accuracy over a large area of the substrate using laser focusing of atoms in a laser interference pattern.

Jabez J. McClelland

2000-01-01T23:59:59.000Z

273

Hartree-Fock theory for pseudorelativistic atoms  

E-Print Network (OSTI)

We study the Hartree-Fock model for pseudorelativistic atoms, that is, atoms where the kinetic energy of the electrons is given by the pseudorelativistic operator \\sqrt{(pc)^2+(mc^2)^2}-mc^2. We prove the existence of a Hartree-Fock minimizer, and prove regularity away from the nucleus and pointwise exponential decay of the corresponding orbitals.

Anna Dall'Acqua; Thomas Řstergaard Sřrensen; Edgardo Stockmeyer

2007-07-31T23:59:59.000Z

274

Formation of $??$ atoms in $K_{?4} decay  

E-Print Network (OSTI)

We derive the decay rate of $\\pi\\mu$ atom formation in $K_{\\mu 4}$ decay. Using the obtained expressions we calculate the decay rate of atom formation and point out that considered decay can give a noticeable contribution as a background to the fundamental decay $K^+\\to \\pi^+\

S. R. Gevorkyan; A. V. Tarasov; O. O. Voskresenskaya

2009-12-01T23:59:59.000Z

275

Hydrogen atom moving across a magnetic field  

Science Journals Connector (OSTI)

A hydrogen atom moving across a magnetic field is considered in a wide region of magnitudes of magnetic field and atom momentum. We solve the Schrödinger equation of the system numerically using an imaginary time method and find wave functions of the lowest states of atom. We calculate the energy and the mean electron-nucleus separation as a function of atom momentum and magnetic field. All the results obtained could be summarized as a phase diagram on the “atom-momentum – magnetic-field” plane. There are transformations of wave-function structure at critical values of atom momentum and magnetic field that result in a specific behavior of dependencies of energy and mean interparticle separation on the atom momentum P. We discuss a transition from the Zeeman regime to the high magnetic field regime. A qualitative analysis of the complicated behavior of wave functions vs P based on the effective potential examination is given. We analyze a sharp transition at the critical momentum from a Coulomb-type state polarized due to atom motion to a strongly decentered (Landau-type) state at low magnetic fields. A crossover occurring at intermediate magnetic fields is also studied.

Yu. E. Lozovik and S. Yu. Volkov

2004-08-23T23:59:59.000Z

276

Interaction of trapped ions with trapped atoms  

E-Print Network (OSTI)

In this thesis, I present results from two Paul-trap based ion traps carried out in the Vuleti? laboratory: the Atom-Ion trap for collision studies between cold atoms and cold ions, and the Cavity-Array trap for studying ...

Grier, Andrew T. (Andrew Todd)

2011-01-01T23:59:59.000Z

277

Relativistic atomic physics at the SSC  

SciTech Connect

This report discusses the following proposed work for relativistic atomic physics at the Superconducting Super Collider: Beam diagnostics; atomic physics research; staffing; education; budget information; statement concerning matching funds; description and justification of major items of equipment; statement of current and pending support; and assurance of compliance.

NONE

1990-12-31T23:59:59.000Z

278

New statistical atom: A numerical study  

Science Journals Connector (OSTI)

The new differential equation for the statistical atom is derived and discussed in detail. Numerical results are presented which provide evidence for the validity of all approximations that have entered the formalism. A comparison of experimental data for diamagnetic susceptibilities with theoretical predictions shows that the new statistical atom significantly surpasses its Hartree-Fock competitor.

Berthold-Georg Englert and Julian Schwinger

1984-05-01T23:59:59.000Z

279

Quantum-noise quenching in atomic tweezers  

SciTech Connect

The efficiency of extracting single atoms or molecules from an ultracold bosonic reservoir is theoretically investigated for a protocol based on lasers, coupling the hyperfine state in which the atoms form a condensate to another stable state, in which the atom experiences a tight potential in the regime of collisional blockade, the quantum tweezers. The transfer efficiency into the single-atom ground state of the tight trap is fundamentally limited by the collective modes of the condensate, which are thermally and dynamically excited. The noise due to these excitations can be quenched for sufficiently long laser pulses, thereby achieving high efficiencies. These results show that this protocol can be applied to initializing a quantum register based on tweezer traps for neutral atoms.

Zippilli, Stefano [Departament de Fisica, Universitat Autonoma de Barcelona, E-08193 Bellaterra (Spain); Theoretische Physik, Universitaet des Saarlandes, D-66041 Saarbruecken (Germany); Fachbereich Physik and Research Center OPTIMAS, Technische Universitaet Kaiserslautern, D-67663 Kaiserslautern (Germany); Mohring, Bernd; Schleich, Wolfgang [Institut fuer Quantenphysik, Universitaet Ulm, D-89081 Ulm (Germany); Lutz, Eric [Department of Physics, University of Augsburg, D-86135 Augsburg (Germany); Morigi, Giovanna [Departament de Fisica, Universitat Autonoma de Barcelona, E-08193 Bellaterra (Spain); Theoretische Physik, Universitaet des Saarlandes, D-66041 Saarbruecken (Germany)

2011-05-15T23:59:59.000Z

280

Quantum-noise quenching in atomic tweezers  

E-Print Network (OSTI)

The efficiency of extracting single atoms or molecules from an ultracold bosonic reservoir is theoretically investigated for a protocol based on lasers, coupling the hyperfine state in which the atoms form a condensate to another stable state, in which the atom experiences a tight potential in the regime of collisional blockade, the quantum tweezers. The transfer efficiency into the single-atom ground state of the tight trap is fundamentally limited by the collective modes of the condensate, which are thermally and dynamically excited. The noise due to these excitations can be quenched for sufficiently long laser pulses, thereby achieving high efficiencies. These results show that this protocol can be applied for initializing a quantum register based on tweezer traps for neutral atoms.

Stefano Zippilli; Bernd Mohring; Eric Lutz; Giovanna Morigi; Wolfgang Schleich

2011-04-15T23:59:59.000Z

Note: This page contains sample records for the topic "atomic bomb survivors" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Quantum computing with atomic Josephson junction arrays  

SciTech Connect

We present a quantum computing scheme with atomic Josephson junction arrays. The system consists of a small number of atoms with three internal states and trapped in a far-off-resonant optical lattice. Raman lasers provide the 'Josephson' tunneling, and the collision interaction between atoms represent the 'capacitive' couplings between the modes. The qubit states are collective states of the atoms with opposite persistent currents. This system is closely analogous to the superconducting flux qubit. Single-qubit quantum logic gates are performed by modulating the Raman couplings, while two-qubit gates result from a tunnel coupling between neighboring wells. Readout is achieved by tuning the Raman coupling adiabatically between the Josephson regime to the Rabi regime, followed by a detection of atoms in internal electronic states. Decoherence mechanisms are studied in detail promising a high ratio between the decoherence time and the gate operation time.

Tian Lin; Zoller, P. [Institute for Theoretical Physics, University of Innsbruck, A-6020 Innsbruck (Austria)

2003-10-01T23:59:59.000Z

282

Quantum Computing with Atomic Josephson Junction Arrays  

E-Print Network (OSTI)

We present a quantum computing scheme with atomic Josephson junction arrays. The system consists of a small number of atoms with three internal states and trapped in a far-off resonant optical lattice. Raman lasers provide the "Josephson" tunneling, and the collision interaction between atoms represent the "capacitive" couplings between the modes. The qubit states are collective states of the atoms with opposite persistent currents. This system is closely analogous to the superconducting flux qubit. Single qubit quantum logic gates are performed by modulating the Raman couplings, while two-qubit gates result from a tunnel coupling between neighboring wells. Readout is achieved by tuning the Raman coupling adiabatically between the Josephson regime to the Rabi regime, followed by a detection of atoms in internal electronic states. Decoherence mechanisms are studied in detail promising a high ratio between the decoherence time and the gate operation time.

Lin Tian; P. Zoller

2003-06-12T23:59:59.000Z

283

Hewlett and Duncan - Atomic Shield | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Duncan - Atomic Shield Duncan - Atomic Shield Hewlett and Duncan - Atomic Shield Hewlett, Richard G. and Francis Duncan. Atomic Shield, 1947-1952. U.S. Atomic Energy Comission, 1972. The second volume of the three volume A History of the United States Atomic Energy Commission. Text in each PDF is fully searchable. "Hewlett and Duncan - Atomic Shield (complete).pdf" contains the complete text and images from Atomic Shield. 12mb "Hewlett and Duncan - Atomic Shield (figures only).pdf" contains hi-res (600dpi) scans of the images from Atomic Shield. 30mb Hewlett and Duncan - Atomic Shield (complete).pdf Hewlett and Duncan - Atomic Shield (figures only).pdf More Documents & Publications A History of the Atomic Energy Commission Hewlett and Duncan, Nuclear Navy, 1946-1962

284

International Atomic Energy Agency safeguards  

SciTech Connect

The International Atomic Energy Agency (IAEA) is unique among international organizations in its use of on-site inspections to verify that States are in compliance with the terms of a negotiated agreement. The legal basis for the inspections is agreements between the IAEA and the State, concluded in the framework of the Nuclear Nonproliferation Treaty, for full scope safeguards on all nuclear materials. In addition, other more limited agreements for safeguards on a portion of a State's nuclear material are also concluded with States not party to the Treaty. In either case, the role of the IAEA is to verify compliance with the terms of these agreements by auditing facility operating records and reports submitted to the IAEA by the State; by independent measurement of nuclear materials by IAEA inspectors; and by emplacement of surveillance devices to monitor facility operations in the inspector's absence. Although IAEA safeguards are applied only to peaceful nuclear activities and do not attempt to control or reduce the numbers of nuclear weapons, there are aspects of the IAEA methods and technology that may be applicable to treaty verification for arms control. Among these aspects are: (1) the form of the IAEA's agreements with States; (2) the IAEA approach to inspection planning; and (3) the instrumentation employed by the IAEA for monitoring facility activities and for measuring nuclear material.

Avenhaus, R.; Markin, J.

1985-01-01T23:59:59.000Z

285

Magnetic moment of atomic lithium  

Science Journals Connector (OSTI)

Bound-state relativistic contributions to the gJ factor of ground-state atomic lithium are calculated and compared with the experimental value gJ(Li)ge=1-(8.9±0.4)×10-6, where ge is the free-electron g factor. This comparison is taken as the basis for judging the accuracy of several different Li wave functions taken from the literature. Most of these wave functions give agreement with the experimental value within the experimental uncertainty. A more precise experimental measurement would be desirable in order to provide a more stringent test. A wave function of the restricted Hartree-Fock type, however, leads to a value which is in disagreement with the experimental value. This is attributed to the inability of the restricted Hartree-Fock function to account for the exchange polarization of the 1s2 core electrons; the latter are found to contribute about -1.2 × 10-6 to gJ(Li)ge, or about 13% of the total relativistic correction. In addition to the dominant relativistic corrections of order ?2, radiative corrections (order ?3), and nuclear-mass corrections (order ?2mM) are also calculated. An isotopic shift gJ(Li6)gJ(Li7)=1+3.0×10-11 is predicted. The experimental measurements for Li are not yet precise enough to test these higher-order corrections.

Roger A. Hegstrom

1975-02-01T23:59:59.000Z

286

Errors and Uncertainties in Dose Reconstruction for Radiation Effects Research  

SciTech Connect

Dose reconstruction for studies of the health effects of ionizing radiation have been carried out for many decades. Major studies have included Japanese bomb survivors, atomic veterans, downwinders of the Nevada Test Site and Hanford, underground uranium miners, and populations of nuclear workers. For such studies to be credible, significant effort must be put into applying the best science to reconstructing unbiased absorbed doses to tissues and organs as a function of time. In many cases, more and more sophisticated dose reconstruction methods have been developed as studies progressed. For the example of the Japanese bomb survivors, the dose surrogate “distance from the hypocenter” was replaced by slant range, and then by TD65 doses, DS86 doses, and more recently DS02 doses. Over the years, it has become increasingly clear that an equal level of effort must be expended on the quantitative assessment of uncertainty in such doses, and to reducing and managing uncertainty. In this context, this paper reviews difficulties in terminology, explores the nature of Berkson and classical uncertainties in dose reconstruction through examples, and proposes a path forward for Joint Coordinating Committee for Radiation Effects Research (JCCRER) Project 2.4 that requires a reasonably small level of effort for DOSES-2008.

Strom, Daniel J.

2008-04-14T23:59:59.000Z

287

Instrument Series: Microscopy Atom Probe The LEAP  

NLE Websites -- All DOE Office Websites (Extended Search)

Atom Probe Atom Probe The LEAP ® 4000 XHR local electrode atom probe tomography instrument enabled the first- ever comprehensive and accurate 3-D chemical imaging studies of low electrical conductivity materials, such as ceramics, semiconductors and oxides. The LEAP capability is assisting EMSL's efforts to further scientific advancements in interface analysis and microstructural characterization, providing a new tool for understanding the relationship between the nanoscale structure of materials and their macroscopic properties. Research Applications Geochemistry - Studying chemical processes that compose rocks and soils has long been used to determine matter cycles and transport in the environment, which supports critical EMSL research in areas including bioremediation.

288

Nanoscale atomic waveguides with suspended carbon nanotubes  

E-Print Network (OSTI)

We propose an experimentally viable setup for the realization of one-dimensional ultracold atom gases in a nanoscale magnetic waveguide formed by single doubly-clamped suspended carbon nanotubes. We show that all common decoherence and atom loss mechanisms are small guaranteeing a stable operation of the trap. Since the extremely large current densities in carbon nanotubes are spatially homogeneous, our proposed architecture allows to overcome the problem of fragmentation of the atom cloud. Adding a second nanowire allows to create a double-well potential with a moderate tunneling barrier which is desired for tunneling and interference experiments with the advantage of tunneling distances being in the nanometer regime.

V. Peano; M. Thorwart; A. Kasper; R. Egger

2005-11-23T23:59:59.000Z

289

The dressed mobile atoms and ions  

E-Print Network (OSTI)

We consider free atoms and ions in $\\R^3$ interacting with the quantized electromagnetic field. Because of the translation invariance we consider the reduced hamiltonian associated with the total momentum. After introducing an ultraviolet cutoff we prove that the reduced hamiltonian for atoms has a ground state if the coupling constant and the total momentum are sufficiently small. In the case of ions an extra infrared regularization is needed. We also consider the case of the hydrogen atom in a constant magnetic field. Finally we determine the absolutely continuous spectrum of the reduced hamiltonian.

Laurent Amour; Benoit Grebert; Jean-Claude Guillot

2005-07-20T23:59:59.000Z

290

Storing images in warm atomic vapor  

E-Print Network (OSTI)

Reversible and coherent storage of light in atomic medium is a key-stone of future quantum information applications. In this work, arbitrary two-dimensional images are slowed and stored in warm atomic vapor for up to 30 $\\mu$s, utilizing electromagnetically induced transparency. Both the intensity and the phase patterns of the optical field are maintained. The main limitation on the storage resolution and duration is found to be the diffusion of atoms. A techniqueanalogous to phase-shift lithography is employed to diminish the effect of diffusion on the visibility of the reconstructed image.

M. Shuker; O. Firstenberg; R. Pugatch; A. Ron; N. Davidson

2008-06-17T23:59:59.000Z

291

Single atom as a macroscopic entanglement source  

E-Print Network (OSTI)

by many authors including the generation of entangled coherent state #3;1?3#4;, single photon and vacuum entanglement #3;4#4;, and two-atom entanglement #3;5#4;. More recently, generation of macroscopic entangled states via phase sensitive... cascade configuration crossing or trapped in a two-mode field cavity. The atomic level configuration is depicted in Fig. 1. The two atomic transitions #5;a#6;? #5;b#6; and #5;b#6;? #5;c#6; interact with the two cavity modes with detunings #1...

Zhou, Ling; Xiong, Han; Zubairy, M. Suhail.

2006-01-01T23:59:59.000Z

292

Fast Quantum Gates for Neutral Atoms  

Science Journals Connector (OSTI)

We propose several schemes for implementing a fast two-qubit quantum gate for neutral atoms with the gate operation time much faster than the time scales associated with the external motion of the atoms in the trapping potential. In our example, the large interaction energy required to perform fast gate operations is provided by the dipole-dipole interaction of atoms excited to low-lying Rydberg states in constant electric fields. A detailed analysis of imperfections of the gate operation is given.

D. Jaksch; J. I. Cirac; P. Zoller; S. L. Rolston; R. Côté; M. D. Lukin

2000-09-04T23:59:59.000Z

293

Duality in spaces of finite linear combinations of atoms  

E-Print Network (OSTI)

Duality in spaces of finite linear combinations of atoms Fulvio Ricci and Joan Verdera Abstract In this note we describe the dual and the completion of the space of finite linear combinations of (p, )-atoms, )-atoms, 0

Ricci, Fulvio

294

CHARGE TRANSFER BETWEEN POSITIVE ALKALI IONS AND ATOMS  

E-Print Network (OSTI)

average velocity of atoms , ::. : . . :. . in the oven. Thisfor a potassium ", . atom beam operating under conditionsPOSITIVE ALKALI IONS AND ATOMS I W. R. Gentry, Yuan-tseh L e

Gentry, W.R.; Lee, Yuan-tseh; Mahan, Bruce H.

2008-01-01T23:59:59.000Z

295

August 1, 1946: Atomic Energy Act | Department of Energy  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

signs the Atomic Energy Act of 1946. On January 1, 1947, all atomic energy activities are transferred to the newly created Atomic Energy Commission in accordance with the Act...

296

Studying coherence in ultra-cold atomic gases  

E-Print Network (OSTI)

This thesis will discuss the study of coherence properties of ultra-cold atomic gases. The atomic systems investigated include a thermal cloud of atoms, a Bose-Einstein condensate and a fermion pair condensate. In each ...

Miller, Daniel E. (Daniel Edward)

2007-01-01T23:59:59.000Z

297

E-Print Network 3.0 - analytical atomic spectroscopy Sample Search...  

NLE Websites -- All DOE Office Websites (Extended Search)

A partial sampling of these techniques includes: Absorption spectroscopy Atomic absorption... spectroscopy Atomic emission spectroscopy Atomic fluorescence...

298

E-Print Network 3.0 - atomic spectroscopy technologies Sample...  

NLE Websites -- All DOE Office Websites (Extended Search)

A partial sampling of these techniques includes: Absorption spectroscopy Atomic absorption... spectroscopy Atomic emission spectroscopy Atomic fluorescence...

299

Positronium-atom scattering at low energies  

Science Journals Connector (OSTI)

A pseudopotential for positronium-atom interaction, based on electron-atom and positron-atom phase shifts, is constructed, and the phase shifts for Ps-Kr and Ps-Ar scattering are calculated. This approach allows us to extend the Ps-atom cross sections, obtained previously in the impulse approximation [I. I. Fabrikant and G. F. Gribakin, Phys. Rev. Lett. 112, 243201 (2014)], to energies below the Ps ionization threshold. Although experimental data are not available in this low-energy region, our results describe well the tendency of the measured cross sections to drop with decreasing velocity at venergy region, in contrast to the intermediate energy range from the Ps ionization threshold up to v?2 a.u., where the two are similar.

I. I. Fabrikant and G. F. Gribakin

2014-11-20T23:59:59.000Z

300

Testing Lorentz symmetry with atoms and Light  

E-Print Network (OSTI)

This article reports on the Fifth Meeting on CPT and Lorentz Symmetry, CPT'10, held at the end of June 2010 in Bloomington, Indiana, USA. The focus is on recent tests of Lorentz symmetry using atomic and optical physics.

Neil Russell

2011-09-04T23:59:59.000Z

Note: This page contains sample records for the topic "atomic bomb survivors" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Mesic Atoms and the Sigma-Terms  

Science Journals Connector (OSTI)

This talk is intended to be a short round trip through the domains of atomic, nuclear and particle physics. As such, it will be very far from the degree of completeness many of us could wish.

P. M. Gensini

1981-01-01T23:59:59.000Z

302

Electronic transport in atomically thin layered materials  

E-Print Network (OSTI)

Electronic transport in atomically thin layered materials has been a burgeoning field of study since the discovery of isolated single layer graphene in 2004. Graphene, a semi-metal, has a unique gapless Dirac-like band ...

Baugher, Britton William Herbert

2014-01-01T23:59:59.000Z

303

Detecting Topological Phases in Cold Atoms  

E-Print Network (OSTI)

Chern insulators are band insulators which exhibit a gap in the bulk and gapless excitations in the edge. Detection of Chern insulators is a serious challenge in cold atoms since the Hall transport measurements are technically ...

Liu, Xiong-Jun

304

A Magnetic Model of Atomic Constitution  

Science Journals Connector (OSTI)

... to form a perfect analogy to the hypothetical atomic structures. Thus in the case of Boron-10 the central pole contains ten magnets; five of these are "neutralised "by the ...

J. K. MARSH; A. W. STEWART

1922-03-16T23:59:59.000Z

305

Atom-split it for nuclear energy  

NLE Websites -- All DOE Office Websites (Extended Search)

Atom-split it for nuclear energy Fermi-leader of the team that produced the first self-sustaining controlled nuclear chain reaction; contributed to ending WWII Calutron-invented by...

306

Colloquium: Artificial gauge potentials for neutral atoms  

SciTech Connect

When a neutral atom moves in a properly designed laser field, its center-of-mass motion may mimic the dynamics of a charged particle in a magnetic field, with the emergence of a Lorentz-like force. In this Colloquium the physical principles at the basis of this artificial (synthetic) magnetism are presented. The corresponding Aharonov-Bohm phase is related to the Berry's phase that emerges when the atom adiabatically follows one of the dressed states of the atom-laser interaction. Some manifestations of artificial magnetism for a cold quantum gas, in particular, in terms of vortex nucleation are discussed. The analysis is then generalized to the simulation of non-Abelian gauge potentials and some striking consequences are presented, such as the emergence of an effective spin-orbit coupling. Both the cases of bulk gases and discrete systems, where atoms are trapped in an optical lattice, are addressed.

Dalibard, Jean; Gerbier, Fabrice; Juzeliunas, Gediminas; Oehberg, Patrik [Laboratoire Kastler Brossel, CNRS, UPMC, Ecole normale superieure, 24 rue Lhomond, 75005, Paris (France); Institute of Theoretical Physics and Astronomy, Vilnius University, A. Gostauto 12, Vilnius 01108 (Lithuania); SUPA, Department of Physics, Heriot-Watt University, Edinburgh, EH14 4AS (United Kingdom)

2011-10-01T23:59:59.000Z

307

The physics of electronic and atomic collisions  

SciTech Connect

This report contains papers on electron, photon, ion, atom, and molecules collisions. Also included are papers from the following symposiums: correlated transfer/excitation and autoionization; collisions with cold particles; collisions involving positrons; and supercomputational collision physics. (LSP)

Dalgarno, A. (Harvard-Smithsonian Center for Astrophysics, Cambridge, MA (USA)); Freund, R.S. (AT and T Bell Labs., Murray Hill, NJ (USA)); Koch, P.M. (State Univ. of New York, Stony Brook, NY (USA)); Lubell, M.S. (City Coll., New York, NY (USA)); Lucatorto, T.B. (National Inst. of Standards and Technology (NCTL), Gaithersburg, MD (USA)) (eds.)

1990-01-01T23:59:59.000Z

308

Quantum Structures of the Hydrogen Atom  

E-Print Network (OSTI)

Modern quantum theory introduces quantum structures (decompositions into subsystems) as a new discourse that is not fully comparable with the classical-physics counterpart. To this end, so-called Entanglement Relativity appears as a corollary of the universally valid quantum mechanics that can provide for a deeper and more elaborate description of the composite quantum systems. In this paper we employ this new concept to describe the hydrogen atom. We offer a consistent picture of the hydrogen atom as an open quantum system that naturally answers the following important questions: (a) how do the so called "quantum jumps" in atomic excitation and de-excitation occur? and (b) why does the classically and seemingly artificial "center-of-mass + relative degrees of freedom" structure appear as the primarily operable form in most of the experimental reality of atoms?

J. Jeknic-Dugic; M. Dugic; A. Francom; M. Arsenijevic

2014-05-28T23:59:59.000Z

309

SECTION IV: ATOMIC, MOLECULAR AND MATERIALS SCIENCE  

NLE Websites -- All DOE Office Websites (Extended Search)

ATOMIC, MOLECULAR AND MATERIALS SCIENCE A semiempirical scaling law for target K x-ray production in heavy ion collisions... IV-1 R. L. Watson, Y. Peng, V. Horvat, and A....

310

Electrical Analogs of Atomic Radiative Decay Processes  

E-Print Network (OSTI)

Simple electrical circuits are analyzed, and the results show that for high frequencies they have frequency and time responses identical to the spontaneous radiative decays of atoms. As an illustration of the analogy a ...

Fontana, Peter R.; Srivastava, Rajendra P.

1977-03-01T23:59:59.000Z

311

Ab Initio Atomic Simulations of Antisite Pair Recovery in Cubic...  

NLE Websites -- All DOE Office Websites (Extended Search)

Atomic Simulations of Antisite Pair Recovery in Cubic Silicon Carbide. Ab Initio Atomic Simulations of Antisite Pair Recovery in Cubic Silicon Carbide. Abstract: The thermal...

312

Atomic-Scale Simulations of Cascade Overlap and Damage Evolution...  

NLE Websites -- All DOE Office Websites (Extended Search)

Atomic-Scale Simulations of Cascade Overlap and Damage Evolution in Silicon Carbide. Atomic-Scale Simulations of Cascade Overlap and Damage Evolution in Silicon Carbide. Abstract:...

313

LSU EFRC - Center for Atomic Level Catalyst Design - About Us  

NLE Websites -- All DOE Office Websites (Extended Search)

Catalysis and Atomic-Level Synthesis" The mission of LSU's Center for Atomic Level Catalyst Design is to advance: the ability of computational methods to accurately model...

314

LSU EFRC - Center for Atomic Level Catalyst Design  

NLE Websites -- All DOE Office Websites (Extended Search)

Catalysis and Atomic-Level Synthesis" The mission of LSU's Center for Atomic Level Catalyst Design is to advance: the ability of computational methods to accurately model...

315

2nd conference on Intense field- Short Wavelength Atomic and...  

NLE Websites -- All DOE Office Websites (Extended Search)

nd conference on Intense field- Short Wavelength Atomic and Molecular Processes - ISWAMP2 2nd conference on Intense field- Short Wavelength Atomic and Molecular Processes - ISWAMP2...

316

Single Supported Atoms Participate in Catalytic Processes | ornl...  

NLE Websites -- All DOE Office Websites (Extended Search)

Functional Materials for Energy Single Supported Atoms Participate in Catalytic Processes December 04, 2014 Pathways for NO oxidation on single Pt atoms supported on the (010)...

317

Loading rubidium atoms into a hollow core fiber .  

E-Print Network (OSTI)

??We demonstrate a procedure for cooling, trapping, and transferring rubidium atoms into a hollow core photonic band gap fiber. The atoms are first collected in… (more)

Chu, Yiwen

2007-01-01T23:59:59.000Z

318

DOE - Office of Legacy Management -- Knolls Atomic Power Laboratory...  

Office of Legacy Management (LM)

Knolls Atomic Power Laboratory - NY 16 FUSRAP Considered Sites Site: Knolls Atomic Power Laboratory (NY.16) Designated Name: Alternate Name: Location: Evaluation Year: Site...

319

Institute for Atom-Efficient Chemical Transformations Energy...  

NLE Websites -- All DOE Office Websites (Extended Search)

Institute for Atom-Efficient Chemical Transformations - an Energy Frontier Research Center The Institute for Atom-Efficient Chemical Transformations (IACT) employs a...

320

Isolation, Characterization of an Intermediate in an Oxygen Atom...  

NLE Websites -- All DOE Office Websites (Extended Search)

Characterization of an Intermediate in an Oxygen Atom-Transfer Reaction, and the Determination of the Bond Isolation, Characterization of an Intermediate in an Oxygen Atom-Transfer...

Note: This page contains sample records for the topic "atomic bomb survivors" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Atomic Energy Commission Explores Peaceful Uses of Nuclear Explosions...  

National Nuclear Security Administration (NNSA)

Our Jobs Working at NNSA Blog Home About Us Our History NNSA Timeline Atomic Energy Commission Explores Peaceful Uses of ... Atomic Energy Commission Explores Peaceful...

322

Contribution of atom-probe tomography to a better understanding...  

NLE Websites -- All DOE Office Websites (Extended Search)

atom-probe tomography to a better understanding of glass alteration mechanisms: application to a nuclear glass Contribution of atom-probe tomography to a better understanding of...

323

Interaction of an aluminum atom with a closed subshell metal atom: Spectroscopic analysis of AlZn  

E-Print Network (OSTI)

Interaction of an aluminum atom with a closed subshell metal atom: Spectroscopic analysis of Al-block main group element, aluminum, and the 3d series of transi- tion metal atoms. Although the bonding in Al

Morse, Michael D.

324

Spectrally controlled atom-by-atom photoassembly of silver clusters on the surface of ionic-covalent crystals  

Science Journals Connector (OSTI)

The fundamental possibility of implementing light-controlled atom-by-atom assembly of silver clusters beginning with dimers and trimers via photostimulated diffusion of individual atoms initially adsorbed on t...

A. N. Latyshev; O. V. Ovchinnikov; M. S. Smirnov…

2010-11-01T23:59:59.000Z

325

Neutrino Spectroscopy with Atoms and Molecules  

E-Print Network (OSTI)

We give a comprehensive account of our proposed experimental method of using atoms or molecules in order to measure parameters of neutrinos still undetermined; the absolute mass scale, the mass hierarchy pattern (normal or inverted), the neutrino mass type (Majorana or Dirac), and the CP violating phases including Majorana phases. There are advantages of atomic targets, due to the closeness of available atomic energies to anticipated neutrino masses, over nuclear target experiments. Disadvantage of using atomic targets, the smallness of rates, is overcome by the macro-coherent amplification mechanism. The atomic or molecular process we use is a cooperative deexcitation of a collective body of atoms in a metastable level |e> emitting a neutrino pair and a photon; |e> -> |g> + gamma + nu_i nu_j where nu_i's are neutrino mass eigenstates. The macro-coherence is developed by trigger laser irradiation. We discuss aspects of the macro-coherence development by setting up the master equation for the target quantum state and propagating electric field. With a choice of heavy target atom or molecule such as Xe or I_2 that has a large M1 x E1 matrix element between |e> and |g>, we show that one can determine three neutrino masses along with the mass hierarchy pattern by measuring the photon spectral shape. If one uses a target of available energy of a fraction of 1 eV, Majorana CP phases may be determined. Our master equation, when applied to E1 x E1 transition such as pH_2 vibrational transition Xv=1 -> 0, can describe explosive PSR events in which most of the energy stored in |e> is released within a few nanoseconds. The present paper is intended to be self-contained explaining some details related theoretical works in the past, and further reports new simulations and our ongoing experimental efforts of the project to realize the neutrino mass spectroscopy using atoms/molecules.

Atsushi Fukumi; Susumu Kuma; Yuki Miyamoto; Kyo Nakajima; Itsuo Nakano; Hajime Nanjo; Chiaki Ohae; Noboru Sasao; Minoru Tanaka; Takashi Taniguchi; Satoshi Uetake; Tomonari Wakabayashi; Takuya Yamaguchi; Akihiro Yoshimi; Motohiko Yoshimura

2012-11-21T23:59:59.000Z

326

Production of mesoscopic superpositions with ultracold atoms  

E-Print Network (OSTI)

We study mesoscopic superpositions of two component Bose-Einstein condensates. Atomic condensates, with long coherence times, are good systems in which to study such quantum phenomenon. We show that the mesoscopic superposition states can be rapidly generated in which the atoms dispersively interact with the photon field in a cavity. We also discuss the production of compass states which are generalized Schr\\"{o}dinger cat states. The physical realization of mesoscopic states is important in studying decoherence and precision measurement.

H. T. Ng

2007-07-16T23:59:59.000Z

327

Atomization of metal (Materials Preparation Center)  

SciTech Connect

Atomization of metal requires high pressure gas and specialized chambers for cooling and collecting the powders without contamination. The critical step for morphological control is the impingement of the gas on the melt stream. The video is a color video of a liquid metal stream being atomized by high pressure gas. This material was cast at the Ames Laboratorys Materials Preparation Center http://www.mpc.ameslab.gov WARNING - AUDIO IS LOUD.

None

2010-01-01T23:59:59.000Z

328

Kinetics of atoms in a bichromatic field  

SciTech Connect

The kinetics of atoms in a bichromatic field is considered. Analytic solutions are obtained for the force, friction coefficient, and diffusion coefficient in the model of a two-level atom without limitations imposed on the intensity of light fields. This effect is observed in the domain of global minima and maxima of the optical potential (i.e., at points where the relative phase of two standing waves is Greek-Phi-Symbol = 0, {pi}/2.

Prudnikov, O. N., E-mail: llf@laser.nsc.ru [Novosibirsk State University (Russian Federation); Baklanov, A. S. [Russian Academy of Sciences, Institute of Laser Physics, Siberian Branch (Russian Federation)] [Russian Academy of Sciences, Institute of Laser Physics, Siberian Branch (Russian Federation); Taichenachev, A. V. [Novosibirsk State University (Russian Federation)] [Novosibirsk State University (Russian Federation); Tumaikin, A. M. [Russian Academy of Sciences, Institute of Laser Physics, Siberian Branch (Russian Federation)] [Russian Academy of Sciences, Institute of Laser Physics, Siberian Branch (Russian Federation); Yudin, V. I. [Novosibirsk State University (Russian Federation)] [Novosibirsk State University (Russian Federation)

2013-08-15T23:59:59.000Z

329

Atomic resolution images of graphite in air  

SciTech Connect

One sample used for proof of operation for atomic resolution in STM is highly oriented pyrolytic graphite (HOPG). This sample has been imaged with many different STM`s obtaining similar results. Atomic resolution images of HOPG have now been obtained using an STM designed and built at the Precision Engineering Center. This paper discusses the theoretical predictions and experimental results obtained in imaging of HOPG.

Grigg, D.A.; Shedd, G.M.; Griffis, D.; Russell, P.E.

1988-12-01T23:59:59.000Z

330

Hydrogen atom in rotationally invariant noncommutative space  

E-Print Network (OSTI)

We consider the noncommutative algebra which is rotationally invariant. The hydrogen atom is studied in a rotationally invariant noncommutative space. We find the corrections to the energy levels of the hydrogen atom up to the second order in the parameter of noncommutativity. The upper bound of the parameter of noncommutativity is estimated on the basis of the experimental results for 1s-2s transition frequency.

Kh. P. Gnatenko; V. M. Tkachuk

2014-11-03T23:59:59.000Z

331

Spatially resolved excitation of Rydberg atoms and surface effects on an atom chip  

SciTech Connect

We demonstrate spatially resolved, coherent excitation of Rydberg atoms on an atom chip. Electromagnetically induced transparency (EIT) is used to investigate the properties of the Rydberg atoms near the gold-coated chip surface. We measure distance-dependent shifts ({approx}10 MHz) of the Rydberg energy levels caused by a spatially inhomogeneous electric field. The measured field strength and distance dependence is in agreement with a simple model for the electric field produced by a localized patch of Rb adsorbates deposited on the chip surface during experiments. The EIT resonances remain narrow (<4 MHz) and the observed widths are independent of atom-surface distance down to {approx} 20 {mu}m, indicating relatively long lifetime of the Rydberg states. Our results open the way to studies of dipolar physics, collective excitations, quantum metrology, and quantum information processing involving interacting Rydberg excited atoms on atom chips.

Tauschinsky, Atreju; Thijssen, Rutger M. T.; Whitlock, S.; Linden van den Heuvell, H. B. van; Spreeuw, R. J. C. [Van der Waals-Zeeman Institute, University of Amsterdam, Valckenierstraat 65, 1018 XE Amsterdam (Netherlands)

2010-06-15T23:59:59.000Z

332

Excess optical quantum noise in atomic sensors  

E-Print Network (OSTI)

Enhanced nonlinear optical response of a coherent atomic medium is the basis for many atomic sensors, and their performance is ultimately limited by the quantum fluctuations of the optical read-out. Here we demonstrate that off-resonant interactions can significantly modify the quantum noise of the optical field, even when their effect on the mean signal is negligible. We illustrate this concept by using an atomic magnetometer based on the nonlinear Faraday effect: the rotation of the light polarization is mainly determined by the resonant light-induced spin alignment, which alone does not change the photon statistics of the optical probe. Yet, we found that the minimum noise of output polarization rotation measurements is above the expected shot noise limit. This excess quantum noise is due to off-resonant coupling and grows with atomic density. We also show that the detection scheme can be modified to reduce the measured quantum noise (even below the shot-noise limit) but only at the expense of the reduced rotational sensitivity. These results show the existence of previously unnoticed factors in fundamental limitations in atomic magnetometry and could have impacts in many other atom-light based precision measurements.

Irina Novikova; Eugeniy E. Mikhailov; Yanhong Xiao

2014-10-14T23:59:59.000Z

333

From Lattice Gauge Theories to Hydrogen Atoms  

E-Print Network (OSTI)

Using canonical transformations we obtain a complete and most economical realization of the loop or physical Hilbert space of pure $SU(2)_{2+1}$ lattice gauge theory in terms of Wigner coupled Hilbert spaces of hydrogen atoms. One hydrogen atom is assigned to every plaquette of the lattice. The SU(2) gauge theory loop basis states over a plaquette are the bound energy eigenstates $|n l m>$ of the corresponding hydrogen atom. The Wigner couplings of these hydrogen atom energy eigenstates on different plaquettes provide a complete SU(2) gauge theory loop basis on the entire lattice. The loop basis is invariant under simultaneous rotations of all hydrogen atoms. The dual description of this basis diagonalizes all Wilson loop operators and is given in terms of hyperspherical harmonics on the SU(2) group manifold $S^3$. The SU(2) loop dynamics is governed by a "SU(2) spin Hamiltonian" without any gauge fields. The relevance of the hydrogen atom basis and its dynamical symmetry group SO(4,2) in SU(2) loop dynamics in weak coupling continuum limit ($g^2\\rightarrow 0$) is emphasized.

Manu Mathur; T. P. Sreeraj

2014-10-13T23:59:59.000Z

334

Cavity cooling of an atomic array  

E-Print Network (OSTI)

While cavity cooling of a single trapped emitter was demonstrated, cooling of many particles in an array of harmonic traps needs investigation and poses a question of scalability. This work investigates the cooling of a one dimensional atomic array to the ground state of motion via the interaction with the single mode field of a high-finesse cavity. The key factor ensuring the cooling is found to be the mechanical inhomogeneity of the traps. Furthermore it is shown that the pumped cavity mode does not only mediate the cooling but also provides the necessary inhomogeneity if its periodicity differs from the one of the array. This configuration results in the ground state cooling of several tens of atoms within a few milliseconds, a timescale compatible with current experimental conditions. Moreover, the cooling rate scaling with the atom number reveals a drastic change of the dynamics with the size of the array: atoms are either cooled independently, or via collective modes. In the latter case the cavity mediated atom interaction destructively slows down the cooling as well as increases the mean occupation number, quadratically with the atom number. Finally, an order of magnitude speed up of the cooling is predicted as an outcome the optimization scheme based on the adjustment of the array versus the cavity mode periodicity.

Oxana Mishina

2014-04-16T23:59:59.000Z

335

Analytical quality control services of the International Atomic Energy Agency  

Science Journals Connector (OSTI)

The International Atomic Energy Agency provides quality control services to analytical laboratories. These services...

O. Suschny

1986-01-01T23:59:59.000Z

336

Parent--daughter system: D Number of daughter atoms, today  

E-Print Network (OSTI)

- t ) + # , - #12;) . Parent--daughter system: D = N0 ­N D ­ Number of daughter atoms, today N ­ Number of parent atoms, today N0 ­ Number of parent atoms, initially present N0 = D + N, hence: D + N = Net , or D = N et as atoms are transferred from the liquid melt to the solid crystal. Some of the elements incorporated

Siebel, Wolfgang

337

Towards new states of matter with atoms and photons  

E-Print Network (OSTI)

Towards new states of matter with atoms and photons Jonas Larson Stockholm University and Universität zu Köln Aarhus "Cold atoms and beyond" 26/6-2014 #12;Motivation Optical lattices + control QED = coupling between few material (atomic) and few electromagnetic degrees of freedom. Cavity atom

338

5 1 Danish Atomic Energy Commission 3 Research Establishment Ris  

E-Print Network (OSTI)

SK S I§ 5 1 Danish Atomic Energy Commission 3 § Research Establishment Risø Risø Report No. 249 P u on Luminescence Dosimetry The Danish Atomic Energy Commission Research Establishment KisS October 11-14 1 971 Sponsored by The Danish Atomic Energy Commission and International Atomic Energy Agency Editor V. Mejdahl

339

PC-ATOMIC Final Report 1 Joseph D. Touch1  

E-Print Network (OSTI)

. This document describes the PC-ATOMIC interface, its design, capabilities, and performance. The board design@isi.edu ABSTRACT: PC-ATOMIC is a PC interface for the ATOMIC LAN. PC- ATOMIC is implemented as a VL-Bus (VESA) short-form card for Intel i486 PCs, providing an interface for low-cost workstations to a 640 Mbps LAN

Touch, Joe

340

Precision Calculations of Atoms with Few Valence Electrons  

E-Print Network (OSTI)

Precision Calculations of Atoms with Few Valence Electrons M. G. KOZLOV Petersburg Nuclear Physics words: atoms; effective Hamiltonian; pair equations; precision calculation; valence electron for valence electrons of an atom. The low-energy part of atomic spectrum is found by solving the eigenvalue

Kozlov, Mikhail G

Note: This page contains sample records for the topic "atomic bomb survivors" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Precision Calculations of Atoms with Few Valence Electrons  

E-Print Network (OSTI)

Precision Calculations of Atoms with Few Valence Electrons M. G. KOZLOV Petersburg Nuclear Physics for valence electrons of an atom. The low-energy part of atomic spectrum is found by solving the eigenvalue­valence correlations. We tested this method on a toy model of a four-electron atom with the core 1s2 . The spectrum

Kozlov, Mikhail G

342

Toward improved photon-atom scattering predictions  

SciTech Connect

Photon-atom scattering is important in a variety of applications, but scattering from a composite system depends on the accurate characterization of the scattering from an isolated atom or ion. We have been examining the validity of simpler approximations of elastic scattering in the light of second-order S-matrix theory. Partitioning the many-body amplitude into Rayleigh and Delbrueck components, processes beyond photoionization contribute. Subtracted cross sections for bound-bound atomic transitions, bound pair annihilation, and bound pair production are required in anomalous scattering factors for: (1) convergence of the dispersion integral; (2) agreement with predictions of the more sophisticated S-matrix approach; (3) satisfying the Thomas-Reiche-Kuhn sum rule. New accurate tabulations of anomalous scattering factors have been prepared for all Z, for energies 0--10,000 keV, within the independent particle approximation (IPA) using a Dirac-Slater model of the atom. Separately, experimental atomic photoabsorption threshold information has been used to modify these IPA predictions for improved comparison with experiment.

Kissel, L.

1994-10-21T23:59:59.000Z

343

An Atomic Gravitational Wave Interferometric Sensor (AGIS)  

SciTech Connect

We propose two distinct atom interferometer gravitational wave detectors, one terrestrial and another satellite-based, utilizing the core technology of the Stanford 10m atom interferometer presently under construction. Each configuration compares two widely separated atom interferometers run using common lasers. The signal scales with the distance between the interferometers, which can be large since only the light travels over this distance, not the atoms. The terrestrial experiment with baseline {approx} 1 km can operate with strain sensitivity {approx} 10{sup -19}/{radical}Hz in the 1 Hz-10 Hz band, inaccessible to LIGO, and can detect gravitational waves from solar mass binaries out to megaparsec distances. The satellite experiment with baseline {approx} 1000 km can probe the same frequency spectrum as LISA with comparable strain sensitivity {approx} 10{sup -20}/{radical}Hz. The use of ballistic atoms (instead of mirrors) as inertial test masses improves systematics coming from vibrations, acceleration noise, and significantly reduces spacecraft control requirements. We analyze the backgrounds in this configuration and discuss methods for controlling them to the required levels.

Dimopoulos, Savas; /Stanford U., Phys. Dept.; Graham, Peter W.; /SLAC; Hogan, Jason M.; Kasevich, Mark A.; /Stanford U., Phys. Dept.; Rajendran, Surjeet; /SLAC /Stanford U., Phys. Dept.

2008-08-01T23:59:59.000Z

344

Hydrogen atom in de Sitter spaces  

E-Print Network (OSTI)

The hydrogen atom theory is developed for the de Sitter and anti de Sitter spaces on the basis of the Klein-Gordon-Fock wave equation in static coordinates. In both models, after separation of the variables, the problem is reduced to the general Heun equation, a second order linear differential equation having four regular singular points. A qualitative examination shows that the energy spectrum for the hydrogen atom in the de Sitter space should be quasi-stationary, and the atom should be unstable. We derive an approximate expression for energy levels within the quasi-classical approach and estimate the probability of decay of the atom. A similar analysis shows that in the anti de Sitter model the hydrogen atom should be stable in the quantum-mechanical sense. Using the quasi-classical approach, we derive approximate formulas for energy levels for this case as well. Finally, we present the extension to the case of a spin 1/2 particle for both de Sitter models. This extension leads to complicated differential equations with 8 singular points.

O. V. Veko; K. V. Kazmerchuk; E. M. Ovsiyuk; V. M. Red'kov; A. M. Ishkhanyan

2014-12-28T23:59:59.000Z

345

Method and apparatus for atomic imaging  

DOE Patents (OSTI)

A method and apparatus for three dimensional imaging of the atomic environment of disordered adsorbate atoms are disclosed. The method includes detecting and measuring the intensity of a diffuse low energy electron diffraction pattern formed by directing a beam of low energy electrons against the surface of a crystal. Data corresponding to reconstructed amplitudes of a wave form is generated by operating on the intensity data. The data corresponding to the reconstructed amplitudes is capable of being displayed as a three dimensional image of an adsorbate atom. The apparatus includes a source of a beam of low energy electrons and a detector for detecting the intensity distribution of a DLEED pattern formed at the detector when the beam of low energy electrons is directed onto the surface of a crystal. A device responsive to the intensity distribution generates a signal corresponding to the distribution which represents a reconstructed amplitude of a wave form and is capable of being converted into a three dimensional image of the atomic environment of an adsorbate atom on the crystal surface.

Saldin, Dilano K. (Milwaukee, WI); de Andres Rodriquez, Pedro L. (Madrid, ES)

1993-01-01T23:59:59.000Z

346

Spectroscopy and atomic force microscopy of biomass  

NLE Websites -- All DOE Office Websites (Extended Search)

Spectroscopy Spectroscopy and atomic force microscopy of biomass L. Tetard a,b , A. Passian a,b,n , R.H. Farahi a , U.C. Kalluri c , B.H. Davison c , T. Thundat a,b a Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA b Department of Physics, University of Tennessee, Knoxville, TN 37996, USA c Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA a r t i c l e i n f o Keywords: Atomic force microscopy Spectroscopy Plant cells Biomass Nanomechanics a b s t r a c t Scanning probe microscopy has emerged as a powerful approach to a broader understanding of the molecular architecture of cell walls, which may shed light on the challenge of efficient cellulosic ethanol production. We have obtained preliminary images of both Populus and switchgrass samples using atomic force microscopy (AFM). The results show distinctive features that are shared by switchgrass

347

Standard Model tests with trapped radioactive atoms  

E-Print Network (OSTI)

We review the use of laser cooling and trapping for Standard Model tests, focusing on trapping of radioactive isotopes. Experiments with neutral atoms trapped with modern laser cooling techniques are testing several basic predictions of electroweak unification. For nuclear $\\beta$ decay, demonstrated trap techniques include neutrino momentum measurements from beta-recoil coincidences, along with methods to produce highly polarized samples. These techniques have set the best general constraints on non-Standard Model scalar interactions in the first generation of particles. They also have the promise to test whether parity symmetry is maximally violated, to search for tensor interactions, and to search for new sources of time reversal violation. There are also possibilites for exotic particle searches. Measurements of the strength of the weak neutral current can be assisted by precision atomic experiments using traps of small numbers of radioactive atoms, and sensitivity to possible time-reversal violating electric dipole moments can be improved.

J. A. Behr; G. Gwinner

2009-03-04T23:59:59.000Z

348

Observables in Neutrino Mass Spectroscopy Using Atoms  

E-Print Network (OSTI)

The process of collective de-excitation of atoms in a metastable level into emission mode of a single photon plus a neutrino pair, called radiative emission of neutrino pair (RENP), is sensitive to the absolute neutrino mass scale, to the neutrino mass hierarchy and to the nature (Dirac or Majorana) of massive neutrinos. We investigate how the indicated neutrino mass and mixing observables can be determined from the measurement of the corresponding continuous photon spectrum taking the example of a transition between specific levels of the Yb atom. The possibility of determining the nature of massive neutrinos and, if neutrinos are Majorana fermions, of obtaining information about the Majorana phases in the neutrino mixing matrix, is analyzed in the cases of normal hierarchical, inverted hierarchical and quasi-degenerate types of neutrino mass spectrum. We find, in particular, that the sensitivity to the nature of massive neutrinos depends critically on the atomic level energy difference relevant in the RENP.

D. N. Dinh; S. T. Petcov; N. Sasao; M. Tanaka; M. Yoshimura

2012-09-21T23:59:59.000Z

349

Conservation laws and laser cooling of atoms  

E-Print Network (OSTI)

The straightforward application of energy and linear momentum conservation to the absorption/emission of photons by atoms--first outlined by Schr\\"odinger in 1922--allows to establish the essential features of laser cooling of two levels atoms at low laser intensities. The minimum attainable average kinetic energy of the atoms depends on the ratio $\\Gamma/E_R$ between the natural linewidth and the recoil energy and tends to $E_R$ as $\\Gamma/E_R$ tends to zero. This treatment is valid for any value of the ratio $\\Gamma/E_R$ and contains the semiclassical theory of laser cooling as the limiting case in which $E_R\\ll \\Gamma$.

Giuliani, Giuseppe

2015-01-01T23:59:59.000Z

350

Effects of a uniform acceleration on atom-field interactions  

E-Print Network (OSTI)

We review some quantum electrodynamical effects related to the uniform acceleration of atoms in vacuum. After discussing the energy level shifts of a uniformly accelerated atom in vacuum, we investigate the atom-wall Casimir-Polder force for accelerated atoms, and the van der Waals/Casimir-Polder interaction between two accelerated atoms. The possibility of detecting the Unruh effect through these phenomena is also discussed in detail.

Jamir Marino; Antonio Noto; Roberto Passante; Lucia Rizzuto; Salvatore Spagnolo

2014-04-09T23:59:59.000Z

351

Optical pumping of a lithium atomic beam for atom interferometry J. Gillot, A. Gauguet, M. Buchner, and J. Vigue  

E-Print Network (OSTI)

Optical pumping of a lithium atomic beam for atom interferometry J. Gillot, A. Gauguet, M. B.vigue@irsamc.ups-tlse.fr (Dated: May 29, 2013) We apply optical pumping to prepare the lithium beam of our atom interferometer in a single hyperfine-Zeeman sublevel: we use two components of the D1-line for pumping the 7 Li atoms

Paris-Sud XI, Université de

352

Depolarisation cooling of an atomic cloud  

E-Print Network (OSTI)

We propose a cooling scheme based on depolarisation of a polarised cloud of trapped atoms. Similar to adiabatic demagnetisation, we suggest to use the coupling between the internal spin reservoir of the cloud and the external kinetic reservoir via dipolar relaxation to reduce the temperature of the cloud. By optical pumping one can cool the spin reservoir and force the cooling process. In case of a trapped gas of dipolar chromium atoms, we show that this cooling technique can be performed continuously and used to approach the critical phase space density for BEC

S. Hensler; A. Greiner; J. Stuhler; T. Pfau

2005-05-13T23:59:59.000Z

353

Proton Mass Shift in Muonic Hydrogen Atom  

E-Print Network (OSTI)

We show that the value of the proton mass depends on each bound state of muonic or electronic hydrogen atom. The charged particle bound to the proton produces magnetic field inside the proton. This makes a change to the amount of chiral condensate inside the proton. The change gives rise to the shift in the value of the proton mass. Numerically, the shift in the $2S$ state of the muonic hydrogen atom can be of the order of $0.1$ meV. The effect may solve the puzzle of the proton radius.

Aiichi Iwazaki

2014-08-11T23:59:59.000Z

354

Collective mechanism for atomic recombination in plasmas  

Science Journals Connector (OSTI)

A new mechanism is proposed for atomic recombination in plasmas, whereby the binding energy is carried away by a plasmon. It is suggested that this mechanism may compete with radiative and three-body modes in the case of recombination to sufficiently highly excited and perturbed states of hydrogen. A procedure for calculation of the transition rate is outlined in a model which treats the plasma oscillations by the Bohm-Pines canonical transformation and the atomic bound states by a second canonical transformation.

M. D. Girardeau and F. A. Gutierrez

1988-08-01T23:59:59.000Z

355

Nuclear structure effects in light muonic atoms  

E-Print Network (OSTI)

Nuclear structure corrections to energy levels of light muonic atoms are derived with particular attention to the correct nuclear mass dependence. The obtained result for the 2P-2S transition of 1.717(19) meV serves for determination of the nuclear charge radius from the spectroscopic measurement in muonic deuterium.

Pachucki, Krzysztof

2015-01-01T23:59:59.000Z

356

Multistage Zeeman deceleration of hydrogen atoms  

SciTech Connect

The deceleration of beams of neutral particles possessing an electron spin with time-dependent inhomogeneous magnetic fields is demonstrated experimentally. Half the kinetic energy of a velocity-selected part of a pulsed supersonic beam of hydrogen atoms in the ground state is removed using six pulsed magnetic field stages.

Vanhaecke, Nicolas [Physical Chemistry, ETH Zuerich, CH-8093 Zuerich (Switzerland); Laboratoire Aime Cotton, batiment 505, Campus d'Orsay, 91405 Orsay (France); Meier, Urban; Andrist, Markus; Meier, Beat H.; Merkt, Frederic [Physical Chemistry, ETH Zuerich, CH-8093 Zuerich (Switzerland)

2007-03-15T23:59:59.000Z

357

Nano-soldering to single atomic layer  

DOE Patents (OSTI)

A simple technique to solder submicron sized, ohmic contacts to nanostructures has been disclosed. The technique has several advantages over standard electron beam lithography methods, which are complex, costly, and can contaminate samples. To demonstrate the soldering technique graphene, a single atomic layer of carbon, has been contacted, and low- and high-field electronic transport properties have been measured.

Girit, Caglar O. (Berkeley, CA); Zettl, Alexander K. (Kensington, CA)

2011-10-11T23:59:59.000Z

358

Quantum measurements of atoms using cavity QED  

SciTech Connect

Generalized quantum measurements are an important extension of projective or von Neumann measurements in that they can be used to describe any measurement that can be implemented on a quantum system. We describe how to realize two nonstandard quantum measurements using cavity QED. The first measurement optimally and unambiguously distinguishes between two nonorthogonal quantum states. The second example is a measurement that demonstrates superadditive quantum coding gain. The experimental tools used are single-atom unitary operations effected by Ramsey pulses and two-atom Tavis-Cummings interactions. We show how the superadditive quantum coding gain is affected by errors in the field-ionization detection of atoms and that even with rather high levels of experimental imperfections, a reasonable amount of superadditivity can still be seen. To date, these types of measurements have been realized only on photons. It would be of great interest to have realizations using other physical systems. This is for fundamental reasons but also since quantum coding gain in general increases with code word length, and a realization using atoms could be more easily scaled than existing realizations using photons.

Dada, Adetunmise C.; Andersson, Erika [SUPA, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS (United Kingdom); Jones, Martin L.; Kendon, Vivien M. [School of Physics and Astronomy, University of Leeds, Woodhouse Lane, Leeds LS2 9JT (United Kingdom); Everitt, Mark S. [School of Physics and Astronomy, University of Leeds, Woodhouse Lane, Leeds LS2 9JT (United Kingdom); National Institute of Informatics, 2-1-2 Hitotsubashi, Chiyoda ku, Tokyo 101-8430 (Japan)

2011-04-15T23:59:59.000Z

359

EXPERIMENTAL METHODS OF ULTRACOLD ATOMIC PHYSICS  

E-Print Network (OSTI)

and the vacuum-limited lifetimes of the frigid gas samples. This common density sets a common characteristic ultracold atomic physics to contribute significantly to fields as diverse as condensed mat- ter physics. We focus on two main topics: the common experimental techniques of quantum gas experiments

Thywissen, Joseph

360

Single-atom cavity QED and optomicromechanics  

SciTech Connect

In a recent publication [K. Hammerer, M. Wallquist, C. Genes, M. Ludwig, F. Marquardt, P. Treutlein, P. Zoller, J. Ye, and H. J. Kimble, Phys. Rev. Lett. 103, 063005 (2009)] we have shown the possibility to achieve strong coupling of the quantized motion of a micron-sized mechanical system to the motion of a single trapped atom. In the proposed setup the coherent coupling between a SiN membrane and a single atom is mediated by the field of a high finesse cavity and can be much larger than the relevant decoherence rates. This makes the well-developed tools of cavity quantum electrodynamics with single atoms available in the realm of cavity optomechanics. In this article we elaborate on this scheme and provide detailed derivations and technical comments. Moreover, we give numerical as well as analytical results for a number of possible applications for transfer of squeezed or Fock states from atom to membrane as well as entanglement generation, taking full account of dissipation. In the limit of strong-coupling the preparation and verification of nonclassical states of a mesoscopic mechanical system is within reach.

Wallquist, M.; Hammerer, K.; Zoller, P.; Genes, C.; Ludwig, M.; Marquardt, F.; Treutlein, P.; Ye, J.; Kimble, H. J. [Institute for Theoretical Physics, University of Innsbruck, and Institute for Quantum Optics and Quantum Communication, Austrian Academy of Sciences, Technikerstrasse 25, 6020 Innsbruck, Austria and Norman Bridge Laboratory of Physics 12-33, California Institute of Technology, Pasadena, California 91125 (United States); Institute for Theoretical Physics, University of Innsbruck, and Institute for Quantum Optics and Quantum Communication, Austrian Academy of Sciences, Technikerstrasse 25, 6020 Innsbruck (Austria); Department of Physics, Center for NanoScience, and Arnold Sommerfeld Center for Theoretical Physics, Ludwig-Maximilians-Universitaet Muenchen, Theresienstr. 37, D-80333 Munich (Germany); Max-Planck-Institute of Quantum Optics and Department of Physics, Ludwig-Maximilians-Universitaet Muenchen, Schellingstr. 4, D-80799 Munich (Germany); JILA, National Institute of Standards and Technology and University of Colorado, Boulder, Colorado 80309-0440, USA and Norman Bridge Laboratory of Physics 12-33, California Institute of Technology, Pasadena, California 91125 (United States); Norman Bridge Laboratory of Physics 12-33, California Institute of Technology, Pasadena, California 91125 (United States)

2010-02-15T23:59:59.000Z

Note: This page contains sample records for the topic "atomic bomb survivors" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Atom optics: matter and waves in harmony  

Science Journals Connector (OSTI)

...Univer- sity of Konstanz and Keith et al. (1991) at the Massachusetts Institute of Technology (MIT). The Konstanz experiment...produced, making the atom cloud the coldest place in the Solar System|a feat soon followed by Ketterle's group at MIT...

2000-01-01T23:59:59.000Z

362

Informational experiments with microparticles and atoms  

E-Print Network (OSTI)

Accepting information as a physical category and ascribing to inanimate matter some spirit (consciousness, intelligence) allows to explain quantum-mechanical phenomena, including delayed-choice and EPR-Bohm-Bell experiments, as well as irreversibility of time, remaining on the basis of local realism, and suggest essentially new experiments with microparticles and atoms in which information plays the principal role.

Raoul Nakhmanson

2005-09-07T23:59:59.000Z

363

Relativistic Wave Equations and Hydrogenic Atoms  

E-Print Network (OSTI)

The transition probabilities for the components of both the Balmer and Lyman $\\alpha$-lines of hydrogenic atoms are calculated for the nonrelativistic Schrodinger theory, the Dirac theory and the recently developed eight-component formalism. For large $Z$ it is found that all three theories give significantly different results.

B. A. Robson; S. H. Sutanto

2006-05-24T23:59:59.000Z

364

Hydrogen atoms in proteins: Positions and dynamics  

Science Journals Connector (OSTI)

...crystal structure analysis was used to study...A test of the reliability of calculated...x-ray structure analysis. (For a recent...at the JRR-3M reactor at the Japan Atomic...crystal structure analysis was used to study...A test of the reliability of calculated hydrogen...

Niklas Engler; Andreas Ostermann; Nobuo Niimura; Fritz G. Parak

2003-01-01T23:59:59.000Z

365

Structural materials: understanding atomic scale microstructures  

SciTech Connect

With the ability to locate and identify atoms in three dimensions, atom-probe tomography (APT) has revolutionized our understanding of structure-property relationships in materials used for structural applications. The atomic-scale details of clusters, second phases, and microstructural defects that control alloy properties have been investigated, providing an unprecedented level of detail on the origins of aging behavior, strength, creep, fracture toughness, corrosion, and irradiation resistance. Moreover, atomic-scale microscopy combined with atomistic simulation and theoretical modeling of material behavior can guide new alloy design. In this article, selected examples highlight how APT has led to a deeper understanding of materials structures and therefore properties, starting with the phase transformations controlling the aging and strengthening behavior of complex Al-, Fe-, and Ni-based alloys systems. The chemistry of interfaces and structural defects that play a crucial role in high-temperature strengthening, fracture, and corrosion resistance are also discussed, with particular reference to Zr- and Al-alloys and FeAl intermetallics.

Marquis, E A [University of Oxford; Miller, Michael K [ORNL; Blavette, D [Universite de Rouen, France; Ringer, S. P. [University of Sydney, Australia; Sudbrack, C [Northwestern University, Evanston; Smith, G.D.W. [University of Oxford

2009-01-01T23:59:59.000Z

366

The New Element Curium (Atomic Number 96)  

DOE R&D Accomplishments (OSTI)

Two isotopes of the element with atomic number 96 have been produced by the helium-ion bombardment of plutonium. The name curium, symbol Cm, is proposed for element 96. The chemical experiments indicate that the most stable oxidation state of curium is the III state.

Seaborg, G. T.; James, R. A.; Ghiorso, A.

1948-00-00T23:59:59.000Z

367

Molecular Beam Studies of Hot Atom Chemical Reactions: Reactive Scattering of Energetic Deuterium Atoms  

DOE R&D Accomplishments (OSTI)

A brief review of the application of the crossed molecular beams technique to the study of hot atom chemical reactions in the last twenty years is given. Specific emphasis is placed on recent advances in the use of photolytically produced energetic deuterium atoms in the study of the fundamental elementary reactions D + H{sub 2} -> DH + H and the substitution reaction D + C{sub 2}H{sub 2} -> C{sub 2}HD + H. Recent advances in uv laser and pulsed molecular beam techniques have made the detailed study of hydrogen atom reactions under single collision conditions possible.

Continetti, R. E.; Balko, B. A.; Lee, Y. T.

1989-02-00T23:59:59.000Z

368

Dissipative quantum systems: from two to many atoms  

E-Print Network (OSTI)

We study the dynamics of bosonic atoms in a double well potential under the influence of dissipation. The main effect of dissipation is to destroy quantum coherence and to drive the system towards a unique steady state. We study how the atom-atom interaction affects the decoherence process. We use a systematic approach considering different atomic densities. We show that, for two atoms, the interaction already strongly suppresses decoherence: a phenomenon we refer to as "interaction impeded decoherence". For many atoms, thanks to the increased complexity of the system, the nature of the decoherence process is dramatically altered giving rise to an algebraic instead of exponential decay.

Dario Poletti; Jean-Sebastien Bernier; Antoine Georges; Corinna Kollath

2012-12-18T23:59:59.000Z

369

Generalized Collective States and Their Role in a Collective State Atomic Interferometer and Atomic Clock  

E-Print Network (OSTI)

We investigate the behavior of an ensemble of N non-interacting, identical atoms, excited by a laser with a wavelength of $\\lambda$. In general, the i-th atom sees a Rabi frequency $\\Omega_i$, an initial position dependent laser phase $\\phi_i$, and a motion induced Doppler shift of $\\delta_i$. When $\\Omega_i=\\Omega$ and $\\delta_i=\\delta$ for all atoms, the system evolves into a superposition of (N+1) symmetric collective states (SCS), independent of the values of $\\phi_i$. If $\\phi_i=\\phi$ for all atoms, these states simplify to the well-known Dicke collective states. When $\\Omega_i$ or $\\delta_i$ is distinct for each atom, the system evolves into a superposition of SCS as well as asymmetric collective states (ACS). For large N, the number of ACS's $(2^N-N-1)$ is far greater than that of the SCS. We show how to formulate the properties of all the collective states under various non-idealities, and use this formulation to understand the dynamics thereof. For the case where $\\Omega_i=\\Omega$ and $\\delta_i=\\delta$ for all atoms, we show how to determine the amplitudes of the generalized collective states in a simple manner. For the case where $\\Omega_i$ or $\\delta_i$ is distinct for each atom, we show how the SCS and ACS's can be treated on the same footing. Furthermore, we show that the collective states corresponding to the absorption of a given number of photons can be visualized as an abstract, multi-dimensional rotation in the Hilbert space spanned by the ordered product states of individual atoms. We also consider the effect of treating the center of mass degree of freedom of the atoms quantum mechanically on the description of the collective states. Specifically, we show that it is indeed possible to construct a generalized collective state, as needed for the collective state atomic interferometer we recently proposed, when each atom is assumed to be in a localized wave packet.

Resham Sarkar; May E. Kim; Renpeng Fang; Yanfei Tu; Selim M. Shahriar

2014-08-11T23:59:59.000Z

370

PHYSICAL REVIEW A 86, 053401 (2012) Electric-field sensing near the surface microstructure of an atom chip using cold Rydberg atoms  

E-Print Network (OSTI)

of an atom chip using cold Rydberg atoms J. D. Carter, O. Cherry, and J. D. D. Martin Department of Physics fields near the heterogeneous metal-dielectric surface of an atom chip were measured using cold atoms. The atomic sensitivity to electric fields was enhanced by exciting the atoms to Rydberg states that are 108

Le Roy, Robert J.

371

Hybrid approaches to quantum information using ions, atoms and photons  

E-Print Network (OSTI)

This thesis presents two hybrid systems for quantum information processing - one joining cold ions and cold atoms and another coupling linear chains of atomic ions with photons via an optical resonator. The first experimental ...

Cetina, Marko, Ph. D. Massachusetts Institute of Technology

2011-01-01T23:59:59.000Z

372

Determination of Mercury in Soils by Flameless Atomic Absorption Spectrometry  

Science Journals Connector (OSTI)

...chemical analysis exploration flameless geochemical methods mercury...Determination of Mercury in Soils by Flameless Atomic Absorption Spectrometry...Determinationof Mercury in Soilsby Flameless Atomic AbsorptionSpectrometry...the mercuryre- RF Induction Heater work coils 1. Carriergas...

B. G. Weissberg

373

Direct Evidence of Lithium-Induced Atomic Ordering in Amorphous...  

NLE Websites -- All DOE Office Websites (Extended Search)

Evidence of Lithium-Induced Atomic Ordering in Amorphous TiO2 Nanotubes . Direct Evidence of Lithium-Induced Atomic Ordering in Amorphous TiO2 Nanotubes . Abstract: In this paper,...

374

Design and analysis of a monolithic flexure atomic force microscope  

E-Print Network (OSTI)

This thesis details the design, manufacture, and testing of a sub-nanometer accuracy atomic force microscope. It was made to be integrated into the Sub-Atomic Measuring Machine (SAMM) in collaboration with the University ...

Ljubicic, Dean M

2008-01-01T23:59:59.000Z

375

How Are Atoms Held Together? | GE Global Research  

NLE Websites -- All DOE Office Websites (Extended Search)

How Are Atoms Held Together? How Are Atoms Held Together? 2012.03.30 Chief Scientist Jim Bray discusses positive and negative charges and their role in keeping matter stable. 0...

376

Loading rubidium atoms into a hollow core fiber  

E-Print Network (OSTI)

We demonstrate a procedure for cooling, trapping, and transferring rubidium atoms into a hollow core photonic band gap fiber. The atoms are first collected in a magneto-optical trap (MOT) and then cooled using polarization ...

Chu, Yiwen

2007-01-01T23:59:59.000Z

377

United States Atomic Energy Commission formed, part 2  

NLE Websites -- All DOE Office Websites (Extended Search)

As we continue looking at the transition of thinking that led to the United States Atomic Energy Commission and away from a United Nations Atomic Energy Commission, we see a move...

378

Symposium on atomic spectroscopy (SAS-83): abstracts and program  

SciTech Connect

Abstracts of papers given at the symposium are presented. Session topics include: Rydbergs, optical radiators, and planetary atoms; highly ionized atoms; ultraviolet radiation; theory, ion traps, and laser cooling; beam foil; and astronomy. (GHT)

Not Available

1983-09-01T23:59:59.000Z

379

Lesson 6 - Atoms to Electricity | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

6 - Atoms to Electricity Lesson 6 - Atoms to Electricity Most power plants make electricity by boiling water to make steam that turns a turbine. A nuclear power plant works this...

380

Electromagnetic Light in Medium of Polarized Atoms $^3$He  

E-Print Network (OSTI)

First, it is predicted that polarized atoms $^3$He increase a value of speed electromagnetic waves. This reasoning implies that the velocity of electromagnetic waves into gas consisting of polarized atoms $^3$He is rather than one in vacuum.

V. N. Minasyan

2009-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "atomic bomb survivors" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Atomic Force and Scanning Electron Microscopy of Atmospheric Particles  

E-Print Network (OSTI)

conducted so as to characterize atmospheric aerosols from anthropogenic (pollution) and natural (sea saltAtomic Force and Scanning Electron Microscopy of Atmospheric Particles ZAHAVA BARKAY,1 * AMIT 69978, Israel KEY WORDS atmospheric aerosols; atomic force microscopy; scanning electron microscopy

Shapira, Yoram

382

Distribution Category: Atomic, Molecular, and Chemical Physics  

NLE Websites -- All DOE Office Websites (Extended Search)

Atomic, Atomic, Molecular, and Chemical Physics (UC-411) ARGONNE NATIONAL LABORATORY 9700 South Cass Avenue Argonne, TIlinois 60439 ANLI APSILS-151 RESULTS OF DESIGN CALCULATIONS FOR THE MODULATOR OF THE CROSSED FIELD UNDULATOR DEVICE by Roland S8:voy Advanced Photon Source August 1990 Work sponsored by ~--~,P:a7te~n7t~C~le-.a-re-d--b\-!------ Pen"" .... + D - CII, epartrnent, AND R':-lr-!, ("'1:' ' "'"",,, l... ,r:.. ,'\')k. . f\UTHOF?IZED BY 1l;J6r1l11Cal Publications Ser " O(;ite~ ~ 'vjces Technicallnf ~avld R .* ·i;;~rln - ormatIon Services, ANL Uo So DEPARTMENT OF ENERGY Office of Energy Research 1 Abstract: The modulator in the crossed field undulator device is used to shift the

383

Magneto-Optical Trapping of Holmium Atoms  

E-Print Network (OSTI)

We demonstrate sub-Doppler laser cooling and magneto-optical trapping of the rare earth element Holmium. Atoms are loaded from an atomic beam source and captured in six-beam $\\sigma_+ - \\sigma_-$ molasses using a strong $J=15/2 \\leftrightarrow J=17/2$ cycling transition at $\\lambda=410.5 \\rm nm$. Due to the small difference in hyperfine splittings and Land\\'e $g$-factors in the lower and upper levels of the cooling transition the MOT is self-repumped without additional repump light, and deep sub-Doppler cooling is achieved with the magnetic trap turned on. We measure the leakage out of the cycling transition to metastable states and find a branching ratio $\\sim 10^{-5}$ which is adequate for state resolved measurements on hyperfine encoded qubits.

J. Miao; J. Hostetter; G. Stratis; M. Saffman

2014-03-24T23:59:59.000Z

384

Hydrogen atom in Palatini theories of gravity  

E-Print Network (OSTI)

We study the effects that the gravitational interaction of $f(R)$ theories of gravity in Palatini formalism has on the stationary states of the Hydrogen atom. We show that the role of gravity in this system is very important for lagrangians $f(R)$ with terms that grow at low curvatures, which have been proposed to explain the accelerated expansion rate of the universe. We find that new gravitationally induced terms in the atomic Hamiltonian generate a strong backreaction that is incompatible with the very existence of bound states. In fact, in the 1/R model, Hydrogen disintegrates in less than two hours. The universe that we observe is, therefore, incompatible with that kind of gravitational interaction. Lagrangians with high curvature corrections do not lead to such instabilities.

Gonzalo J. Olmo

2008-06-03T23:59:59.000Z

385

Muonic atoms with extreme nuclear charge  

E-Print Network (OSTI)

Bound muons (also pions, kaons, etc) increase the fission barrier and produce some stabilizing effects for highly charged nuclei. If the binding energy of the muon exceeds $mc^2$, it becomes stable. The $1s$ state of a muon inside an exotic nucleus with atomic number $A= 5Z/2$ and such large charge $Z$ that the $1s$ energy $E$ is in the range $0\\le E<-mc^2$ is considered.

V. V. Flambaum; W. R. Johnson

2007-11-07T23:59:59.000Z

386

Atomic Energy Act and Related Legislation  

Energy.gov (U.S. Department of Energy (DOE))

Purpose and Organization The purpose of the Atomic Energy Act (42 U.S.C. Sect. 2011 - Sect. 2259) (AEA) is to assure the proper management of source, special nuclear, and byproduct material. The AEA and the statutes that amended it delegate the control of nuclear energy primarily to DOE, the Nuclear Regulatory Commission (NRC) , and the Environmental Protection Agency (EPA). DOE authority extends to:

387

Pionic atoms and low energy elastic scattering  

SciTech Connect

A fit to pionic atom data is used to determine four of the parameters of the low energy pion-nucleus optical potential, while the other parameters are taken from theory. The resulting potential is used to predict elastic scattering from 30 --50 MeV pions. The effects of extrapolating the parameters to 50 MeV with a simple energy dependence are examined.

Stricker, K.; Carr, J.A.; McManus, H.

1980-11-01T23:59:59.000Z

388

Beam transport of low temperature atomic hydrogen  

SciTech Connect

Analytic calculations and particle tracking simulations are presented for a polarized atomic hydrogen beam produced by extraction from an ultra-cold (T=300 mK) helium film coated cell in a large solenoidal magnetic field (12 T). Initial focusing of states 1 and 2 by the solenoidal field and subsequent focusing by a sextupole are examined within the constraints imposed by the requirements of the polarized jet for the experiments NEPTUN and NEPTUN-A at UNK.

Kaufman, W.A. (Randall Laboratory of Physics, University of Michigan, Ann Arbor, Michigan 48109 (United States))

1993-12-05T23:59:59.000Z

389

Atomic Power in Space: A History  

DOE R&D Accomplishments (OSTI)

"Atomic Power in Space," a history of the Space Isotope Power Program of the United States, covers the period from the program's inception in the mid-1950s through 1982. Written in non-technical language, the history is addressed to both the general public and those more specialized in nuclear and space technologies. Interplanetary space exploration successes and achievements have been made possible by this technology, for which there is no known substitue.

1987-03-00T23:59:59.000Z

390

Linear degeneracy in the semiclassical atom  

Science Journals Connector (OSTI)

If the angular and radial quantum numbers of states with the same binding energy satisfy a linear relation, as is the situation in the Coulomb potential, the spectrum is said to be linearly degenerate. We present a detailed study of the consequences of such linear degeneracy in atomic potentials. One of the results is a new, and more general, derivation of Scott’s correction to the Thomas-Fermi energy.

Berthold-Georg Englert and Julian Schwinger

1985-07-01T23:59:59.000Z

391

Workshop on atomic physics at the National Synchrotron Light Source  

SciTech Connect

The workshop emphasis was to acquaint the atomic physics community with the range of experimental capabilities of the NSLS. (GHT)

Jones, K.W.; Johnson, B.M.; Gregory, D.C. (eds.)

1981-01-01T23:59:59.000Z

392

Atomic Level Spatial Variations of Energy States along Graphene Edges  

Science Journals Connector (OSTI)

Atomic Level Spatial Variations of Energy States along Graphene Edges ... The local atomic bonding of carbon atoms around the edge of graphene is examined by aberration-corrected scanning transmission electron microscopy (STEM) combined with electron energy loss spectroscopy (EELS). ... We show that energy states of graphene edges vary across individual atoms along the edge according to their specific C–C bonding, as well as perpendicular to the edge. ...

Jamie H. Warner; Yung-Chang Lin; Kuang He; Masanori Koshino; Kazu Suenaga

2014-10-23T23:59:59.000Z

393

General Relativistic Effects in Atom Interferometry  

SciTech Connect

Atom interferometry is now reaching sufficient precision to motivate laboratory tests of general relativity. We begin by explaining the non-relativistic calculation of the phase shift in an atom interferometer and deriving its range of validity. From this we develop a method for calculating the phase shift in general relativity. This formalism is then used to find the relativistic effects in an atom interferometer in a weak gravitational field for application to laboratory tests of general relativity. The potentially testable relativistic effects include the non-linear three-graviton coupling, the gravity of kinetic energy, and the falling of light. We propose experiments, one currently under construction, that could provide a test of the principle of equivalence to 1 part in 10{sup 15} (300 times better than the present limit), and general relativity at the 10% level, with many potential future improvements. We also consider applications to other metrics including the Lense-Thirring effect, the expansion of the universe, and preferred frame and location effects.

Dimopoulos, Savas; /Stanford U., Phys. Dept.; Graham, Peter W.; /SLAC /Stanford U., Phys. Dept.; Hogan, Jason M.; Kasevich, Mark A.; /Stanford U., Phys. Dept.

2008-03-17T23:59:59.000Z

394

Astrophysical constraints on millicharged atomic dark matter  

E-Print Network (OSTI)

Some models of inelastic dark matter posit the existence of bound states under some new $U(1)'$ gauge symmetry. If this new dark photon kinetically mixes with the standard model photon, then the constituent particles in these bound states can acquire a fractional electric charge. This electric charge renders a dark-matter medium dispersive. We compute this frequency-dependent index of refraction for such a medium and use the frequency-dependent arrival time of light from astrophysical sources to constrain the properties of dark atoms in the medium. Using optical-wavelength observations from the Crab Pulsar, we find the electric millicharge of dark (electrons) protons to be smaller than the electric charge $e$ for dark atom masses below 100 keV, assuming a dark fine structure constant $\\boldsymbol{\\alpha}=1$. We estimate that future broadband observations of gamma-ray bursts can produce constraints on the millicharge of dark atoms with masses in the keV range that are competitive with existing collider constra...

Kvam, Audrey K

2014-01-01T23:59:59.000Z

395

Low energy neutral atom imaging techniques  

SciTech Connect

The potential scientific return from low energy neutral atom (LENA) imaging of the magnetosphere is extraordinary. The technical challenges of LENA detection include (1) removal of LENAs from the tremendous ambient UV without losing information of their incident trajectories, (2) quantification of their trajectories, and (3) obtaining high sensitivity measurements. Two techniques that have been proposed for this purpose are based on fundamentally different atomic interaction mechanisms between LENAs and a solid: LENA transmission through an ultrathin foil and LENA reflection from a solid surface. Both of these methods provide LENA ionization (for subsequent removal from the UV by electrostatic deflection) and secondary electron emission (for start pulse generation for time-of-flight and/or coincidence). We present a comparative study of the transmission and reflection techniques based on differences in atomic interactions with solids and surfaces. We show that transmission methods yield an order of magnitude greater secondary electron emission than reflection methods. Transmission methods are shown to be sufficient for LENA energies of approximately 1 keV to greater than 30 keV. Reflection methods using low work function surfaces could be employed for LENA ionization for energies less than several keV.

Funsten, H.O. McComas, D.J.; Scime, E.E.

1993-01-01T23:59:59.000Z

396

Astrophysical constraints on millicharged atomic dark matter  

E-Print Network (OSTI)

Some models of inelastic dark matter posit the existence of bound states under some new $U(1)'$ gauge symmetry. If this new dark photon kinetically mixes with the standard model photon, then the constituent particles in these bound states can acquire a fractional electric charge. This electric charge renders a dark-matter medium dispersive. We compute this frequency-dependent index of refraction for such a medium and use the frequency-dependent arrival time of light from astrophysical sources to constrain the properties of dark atoms in the medium. Using optical-wavelength observations from the Crab Pulsar, we find the electric millicharge of dark (electrons) protons to be smaller than the electric charge $e$ for dark atom masses below 100 keV, assuming a dark fine structure constant $\\boldsymbol{\\alpha}=1$. We estimate that future broadband observations of gamma-ray bursts can produce constraints on the millicharge of dark atoms with masses in the keV range that are competitive with existing collider constraints.

Audrey K. Kvam; David C. Latimer

2014-12-01T23:59:59.000Z

397

Nonperturbative theory for the dispersion self-energy of atoms  

Science Journals Connector (OSTI)

We go beyond the approximate series expansions used in the dispersion theory of finite-size atoms. We demonstrate that a correct, and nonperturbative, theory dramatically alters the dispersion self-energies of atoms. The nonperturbed theory gives as much as 100% corrections compared to the traditional series-expanded theory for the smaller noble gas atoms.

Priyadarshini Thiyam; C. Persson; I. Brevik; Bo E. Sernelius; Mathias Boström

2014-11-14T23:59:59.000Z

398

Plasma atomic layer etching using conventional plasma equipment Ankur Agarwala  

E-Print Network (OSTI)

Plasma atomic layer etching using conventional plasma equipment Ankur Agarwala Department plasma etching processes having atomic layer resolution. The basis of plasma atomic layer etching PALE will be discussed with the goal of demonstrating the potential of using conventional plasma etching equipment having

Kushner, Mark

399

Magnetic trapping of metastable 3 P2 atomic strontium  

E-Print Network (OSTI)

Magnetic trapping of metastable 3 P2 atomic strontium S. B. Nagel, C. E. Simien, S. Laha, P. Gupta trapping of metastable 3 P2 atomic strontium. Atoms are cooled in a magneto-optical trap MOT operating cooling on such a transition in strontium may lead to a fast and efficient route to all-optical quantum

Killian, Thomas C.

400

ccsd00000983 Quantum state transfer between elds and atoms  

E-Print Network (OSTI)

ccsd­00000983 (version 1) : 23 Dec 2003 Quantum state transfer between #12;elds and atoms show that a quasi-perfect quantum state transfer between an atomic ensemble and #12;elds in an optical can be mapped onto the long-lived atomic spin associated to the ground state sublevels of the #3;-type

Note: This page contains sample records for the topic "atomic bomb survivors" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Nucleons, Nuclei, and Atoms 1.1 Overview  

E-Print Network (OSTI)

1 Nucleons, Nuclei, and Atoms 1.1 Overview Despite the success of the Standard Model in explaining is the theme of this chapter: ultrasensitive techniques in atomic, nuclear, and particle physics that might of fundamental symmetries in experiments involving nucleons, nuclei, and atoms have played an essential role

402

Critical Behavior of Electron Impact Ionization of Atoms  

E-Print Network (OSTI)

Critical Behavior of Electron Impact Ionization of Atoms IMAD LADADWA,1,2 SABRE KAIS1 1 Department of the electron impact ionization for different atoms are calculated numerically in the Born approximation as a function of both the incident electron energy and the nuclear charge Z of the ionized atom. We show

Kais, Sabre

403

Duality in spaces of finite linear combinations of atoms  

E-Print Network (OSTI)

Duality in spaces of finite linear combinations of atoms Fulvio Ricci and Joan Verdera Abstract In this note we describe the dual and the completion of the space of finite linear combinations of (p, #)­atoms, #)­atoms, 0

Verdera, Joan

404

Cracks and Atoms** By Dominic Holland* and Michael Marder  

E-Print Network (OSTI)

Cracks and Atoms** By Dominic Holland* and Michael Marder 1. Introduction Many materials scientists the atomic scale on the mechanical response of materials. On the one hand, there is a reluctance to believe that the invisible atomic scale is important for macroscopic mechanical deformation. Out of sight, out of mind

Texas at Austin. University of

405

Giant Magnetic Anisotropy of Single Cobalt Atoms and  

E-Print Network (OSTI)

Giant Magnetic Anisotropy of Single Cobalt Atoms and Nanoparticles P. Gambardella,1,2 * S. Rusponi. Dederichs,5 K. Kern,1,2 C. Carbone,3,5 H. Brune1 The isotropic magnetic moment of a free atom is shown to develop giant magnetic anisotropy energy due to symmetry reduction at an atomically ordered surface

Brune, Harald

406

Imaging single atoms in a three-dimensional array  

E-Print Network (OSTI)

LETTERS Imaging single atoms in a three-dimensional array KARL D. NELSON, XIAO LI AND DAVID S atom trapped by light is a promising qubit. It has weak, well-understood interactions with the environment, its internal state can be precisely manipulated1 , interactions that entangle atoms can be varied

Loss, Daniel

407

Atomic Absorption Method Guide Zn in Copper Alloys  

E-Print Network (OSTI)

Atomic Absorption Method Guide Zn in Copper Alloys Principle The sample is digested in nitric/hydrochloric acid, and zinc is determined by flame atomic absorption spectrometry using an air-acetylene flame · Copper Alloys · Zinc · Flame · Atomic Absorption Method Guide: 40158 #12;©2008 Thermo Fisher Scientific

Wells, Mathew G. - Department of Physical and Environmental Sciences, University of Toronto

408

Ris Report No. 301 J* Danish Atomic Energy Commission  

E-Print Network (OSTI)

* o t: Risø Report No. 301 J* Danish Atomic Energy Commission 1 * Research Establishment Risø Investigations of Plasma Dielectric Functions by H. L. Pécseli Danish Atomic Energy Commission Research, Sølvgade, DK-1307 Copenhagen K, Denmark Available on exchange from: Library, Danish Atomic Energy

409

Ris Report No. 271 8* Danish Atomic Energy Commission  

E-Print Network (OSTI)

O Z o Risø Report No. 271 8* Danish Atomic Energy Commission Bh Research Establishment Risø Activation Analysis* by E. Damsgaard and K. Heydorn Danish Atomic Energy Commission Isotope Division, 87, Sølvgade, DK-1307 Copenhagen K, Denmark Available on exchange from: Library, Danish Atomic Energy

410

RisoRepoitNo. 1SS Danish Atomic Energy Commission  

E-Print Network (OSTI)

i i RisoRepoitNo. 1SS Danish Atomic Energy Commission Research Establishment Riso Dosimetry of Medical Products by Niels W. Holm Danish Atomic Energy Commission Research Establishment Riso Roskilde-1307 Copcnhuan K. DcmnĂĄtt ArttiabU OH twhmtt trom: Library, Danish Atomic Energy R U . Dk-4000 Roskilde

411

^t-Ris Report No. 274 ^ Danish Atomic Energy Commission  

E-Print Network (OSTI)

^t- Risø Report No. 274 o i-, oa ^ Danish Atomic Energy Commission Q S Research Establishment Risø from: Library, Danish Atomic Energy Commission, Risø, DK-4000 Roskilde, Denmark #12;å UDC. 669 #12;March 1 973 Risø Report No. 274 Danish Atomic Energy Commission Research Establishment Risø METALLURGY

412

Riso-M -1695 Danish Atomic Energy Commission  

E-Print Network (OSTI)

en (O i Riso-M - 1695 Danish Atomic Energy Commission Research Establishment Riso CHEMISTRY on request from: Library of the Danish Atomic Energy Commission (AtomenergiKommissionens Bibliotek), Riso, DK Standard distribution Available on request from the Library of the Danish Atomic Energy Commission

413

FttsWd-1679 Danrsh Atomic Energy Commission  

E-Print Network (OSTI)

'ft; s-Tr^R'' -X" »·~VJ FttsWd- 1679 Danrsh Atomic Energy Commission Researtift Establishment Riso Atomic Energy Commission (Atomenergikommissionens Bibliotek), Ris«, DK-4000 Roskilde, Denmark Telephone During IMeV Electron Irradiation by B.N. Singh Metallurgy Department, Danish Atomic Energy Commission

414

m Ris Report No. 313 8* Danish Atomic Energy Commission  

E-Print Network (OSTI)

m Risø Report No. 313 O* Z Vi O 8* Danish Atomic Energy Commission Research Establishment Risø, Danish Atomic Energy Commission, Risø, DK-4000 Roskilde, Denmark #12;July f 974 Risø Report No. 313 Tables of Products of Tensor Operators and Stevens Operators by Per-Anker Lindgård Danish Atomic Energy

415

Ris Report No. 280 Danish Atomic Energy Commission  

E-Print Network (OSTI)

Risø Report No. 280 e Z tc Danish Atomic Energy Commission Research Establishment Risø Conductivity of Electrolytic Solutions by Pierre Baruel Danish Atomic Energy Commission Research Establishment: Library, Danish Atomic Energy Commiiiion, RIM, DK-4M0 Roikikl«, Dflunufc #12;UDC 336.2.08: 541.1312 #12

416

S Ris Report No. 298 Danish Atomic Energy Commission  

E-Print Network (OSTI)

S Risø Report No. 298 is o t! 8. £ Danish Atomic Energy Commission S 2 Research Establishment Risø of the Risø Reactor Physics Code System by H. Neltrup and Per B. Suhr Danish Atomic Energy Commission Research, Sølvgade, DK-1307 Copenhagen K, Denmark Available on exchange from: Library, Danish Atomic Energy

417

& Ris Report No. 287 Danish Atomic Energy Commission  

E-Print Network (OSTI)

& Risø Report No. 287 CM O Z J1 Danish Atomic Energy Commission 2 Research Establishment Risø from: Library, Danish Atomic Energy Commission, Rise, DK-4000 Roskilde, Denmark #12;March 1975 Risø Danish Atomic Energy Commission Research Establishment Risø Metallurgy Department Abstract

418

Riso Report No. 132 Danish Atomic Energy Commission  

E-Print Network (OSTI)

Riso Report No. 132 B ! Danish Atomic Energy Commission Research Establishment Riso Environmental. Stilvfade, Copenhagen K.r Denmark A vailffbt? on exchangtfrom: Library, t>»«ijh Atomic Energy Commission Radioactivity in Greenland in 1965 by A. Aarkrog and J. Lippert The Danish Atomic Energy Commission Research

419

Riso Report No. 128 u Danish Atomic Energy Commission  

E-Print Network (OSTI)

00 c* o z Riso Report No. 128 i u Danish Atomic Energy Commission .1 * Research Establishment Riso Atomic Energy Commission, Ris6, Roskilde, Denmark #12;August, 1966 Riso Report No. 12 ' of Boiling-Heavy-Water Nuclear Reactors P a r t i by ·Niels Kjær-Pedersen The Danish Atomic Energy Commission

420

oo Ris Report No. 308 J* Danish Atomic Energy Commission  

E-Print Network (OSTI)

oo Risø Report No. 308 t: J* Danish Atomic Energy Commission 3 2 Research Establishment Risø on exchange from: Library, Danish Atomic Energy Commission, Risø, DK-4000 Roskilde, Denmark #12;if ay 1974 Scattering * by Kim da Costa Carneiro Danish Atomic Energy Commission Research Establishment Risø Physics

Note: This page contains sample records for the topic "atomic bomb survivors" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Control momentum entanglement with atomic spontaneously generated coherence  

E-Print Network (OSTI)

With atomic spontaneously generated coherence (SGC), we propose a novel scheme to coherently control the atom--photon momentum entanglement through atomic internal coherence. A novel phenomena of ``phase entanglement in momentum'' is proposed, and we found, under certain conditions, that super--high degree of momentum entanglement can be produced with this scheme.

Rui Guo; Hong Guo

2007-01-05T23:59:59.000Z

422

Method of performing MRI with an atomic magnetometer  

DOE Patents (OSTI)

A method and apparatus are provided for performing an in-situ magnetic resonance imaging of an object. The method includes the steps of providing an atomic magnetometer, coupling a magnetic field generated by magnetically resonating samples of the object through a flux transformer to the atomic magnetometer and measuring a magnetic resonance of the atomic magnetometer.

Savukov, Igor Mykhaylovich; Matlashov, Andrei Nikolaevich; Espy, Michelle A.; Volegov, Petr Lvovich; Kraus, Jr., Robert Henry; Zotev, Vadim Sergeyevich

2012-11-06T23:59:59.000Z

423

Method of performing MRI with an atomic magnetometer  

DOE Patents (OSTI)

A method and apparatus are provided for performing an in-situ magnetic resonance imaging of an object. The method includes the steps of providing an atomic magnetometer, coupling a magnetic field generated by magnetically resonating samples of the object through a flux transformer to the atomic magnetometer and measuring a magnetic resonance of the atomic magnetometer.

Savukov, Igor Mykhaylovich; Matlashov, Andrei Nikolaevich; Espy, Michelle A; Volegov, Petr Lvovich; Kraus, Jr., Robert Henry; Zotev, Vadim Sergeyevich

2013-08-27T23:59:59.000Z

424

Optical Spectroscopy of Hydrogenic Atoms MIT Department of Physics  

E-Print Network (OSTI)

Optical Spectroscopy of Hydrogenic Atoms MIT Department of Physics (Dated: September 1, 2013) This experiment is an exercise in optical spectroscopy in a study of the spectra of "hydrogenic" atoms, i.e. atoms with one "optical" electron outside a closed shell of other electrons. Measurements include finding

Seager, Sara

425

E-Print Network 3.0 - atomic level computational Sample Search...  

NLE Websites -- All DOE Office Websites (Extended Search)

multiple-data (MIMD) parallel computers. The first method (atom... community for modeling solids and liquids at the atomic level. Each atom in the simulation is treated......

426

E-Print Network 3.0 - atomic electric dipole Sample Search Results  

NLE Websites -- All DOE Office Websites (Extended Search)

Powered by Explorit Topic List Advanced Search Sample search results for: atomic electric dipole Page: << < 1 2 3 4 5 > >> 1 Polarization The following atom-atom interactions...

427

From Artificial Atoms to Nanocrystal Molecules: Preparation and Properties of More Complex Nanostructures  

E-Print Network (OSTI)

from “artificial atoms” to “artificial molecules”. Angew.quantum dot as an artificial atom. (a) Density of states inFrom Artificial Atoms to Nanocrystal Molecules: Preparation

Choi, Charina L

2010-01-01T23:59:59.000Z

428

E-Print Network 3.0 - atomic emission detection Sample Search...  

NLE Websites -- All DOE Office Websites (Extended Search)

38 Dissipative atom optics PIERRE DESBIOLLES, MARKUS ARNDT, Summary: , if we neglect the atomic recoil during absorption and emission. However, the atom may also fa11 into Fg......

429

E-Print Network 3.0 - atomic spectrometry update Sample Search...  

NLE Websites -- All DOE Office Websites (Extended Search)

techniques that also measure concentration using atom properties... , such as atomic absorption or atomic emission spectrometry (Willard et al. 1988). Quadrupole ICP-MS...

430

Etalon-induced Baseline Drift And Correction In Atom Flux Sensors...  

NLE Websites -- All DOE Office Websites (Extended Search)

Etalon-induced Baseline Drift And Correction In Atom Flux Sensors Based On Atomic Absorption Spectroscopy. Etalon-induced Baseline Drift And Correction In Atom Flux Sensors Based...

431

E-Print Network 3.0 - atomic spectrometry techniques Sample Search...  

NLE Websites -- All DOE Office Websites (Extended Search)

techniques that also measure concentration using atom properties... , such as atomic absorption or atomic emission spectrometry (Willard et al. 1988). Quadrupole ICP-MS...

432

SPECIES DETERMINATION OF ORGANOMETALLIC COMPOUNDS USING ZEEMAN ATOMIC ABSORPTION SPECTROSCOPY WITH LIQUID CHROMATOGRAPHY  

E-Print Network (OSTI)

Compounds Using Zeeman Atomic Absorption Spectroscopy WithCompounds Using Zeeman ,Atomic Absorption Spectroscopy withcapabilities of Zeeman atomic absorption spectroscopy (ZAA)

Koizumi, H.

2011-01-01T23:59:59.000Z

433

E-Print Network 3.0 - atomic gold junction Sample Search Results  

NLE Websites -- All DOE Office Websites (Extended Search)

16 Molecule-assisted atomic chain formation: mechanisms and properties of new one-dimensional conductors. Summary: of a suspended atomic wire of gold and oxygen atoms....

434

E-Print Network 3.0 - atomic clouds Sample Search Results  

NLE Websites -- All DOE Office Websites (Extended Search)

ultracold atoms... resonance). Atoms can then form molecules without release of heat. In ... Source: Harvard University, Center for Ultracold Atoms, Alkali Quantum Gases...

435

E-Print Network 3.0 - average atom model Sample Search Results  

NLE Websites -- All DOE Office Websites (Extended Search)

both ... Source: van der Straten, Peter - Faculty of Physics and Astronomy, Universiteit Utrecht Collection: Physics 6 Atomic physics 1. Mass and size of atoms Summary: Atomic...

436

Geometric phases and quantum operations in two-level atomic systems  

Science Journals Connector (OSTI)

Geometric phases of optically driven atomic wave functions were measured using photon echo technique in a two-level atomic system. Geometric manipulations of the atomic quantum states...

Tian, Mingzhen; Barber, Zeb W; Fischer, Joe A; Babbitt, Wm Randall

437

E-Print Network 3.0 - atomic line filter Sample Search Results  

NLE Websites -- All DOE Office Websites (Extended Search)

Broido , kc claffy , Summary: announces atom ID atom originator atomised prefix routes edge router filters atomsised prefixes routes edge... , only the atom ID is routed...

438

Low Dose Radiation Research Program: Biologically Based Analysis of Lung  

NLE Websites -- All DOE Office Websites (Extended Search)

Biologically Based Analysis of Lung Cancer Incidence in a Large Biologically Based Analysis of Lung Cancer Incidence in a Large Canadian Occupational Cohort with Low-LET Low-dose Radiation Exposure, and Comparison with Japanese Atomic Bomb Survivors. Authors: W.D. Hazelton, D. Krewski, S.H. Moolgavkar Lung cancer incidence is analyzed in a large Canadian National Dose Registry (CNDR) cohort with individual annual dosimetry for low-dose occupational exposure to gamma and tritium radiation using several types of multistage models. The primary analysis utilizes the two-stage clonal expansion model (TSCE), with sensitivity analyses using extensions of this model incorporating additional stages. Characteristic and distinct temporal patterns of risk are found for dose-response affecting early, middle, or late stages of carcinogenesis, e.g., initiation with one or more stages,

439

Low Dose Radiation Program: Links - Online Literature  

NLE Websites -- All DOE Office Websites (Extended Search)

Online Literature Online Literature Journals, Books and other Publications Armed Forces Radiobiology Research Institute Chornobyl Center for Nuclear Safety Radioactive Waste and Radioecology "Insight" Magazine Central Research Institute of the Electric Power Industry (CRIEPI) News: Aiming at an information center on low dose radiation research Health Physics International Journal of Radiation Biology Iranian Journal of Radiation Research Journal of Radiological Protection National Council on Radiation Protection and Measurements Radiation Research U.S. Department of Energy (DOE) Information Bridge Reports Animal Cancer Tests and Human Cancer Risk Assessment: A Broad Perspective Effects of Ionizing Radiation: Atomic Bomb Survivors and Their Children (1945-1995) Health Effects of Exposure to Low Levels of Ionizing Radiation: BEIR

440

Microsoft PowerPoint - Powerpoint_Dose.ppt [Compatibility Mode]  

NLE Websites -- All DOE Office Websites (Extended Search)

Radiation Radiation Dose Dose Radiation Dose One of the most confusing things about One of the most confusing things about understanding radiation effects is visualizing "how much" radiation is involved. It is very difficult to keep the units which measure p radiation straight. A number describing the amount of radiation means nothing without amount of radiation means nothing without evaluating the units, but this is not easy. For example... ...try to match the letter with the amount of di ti i l d i h l radiation involved in each example * Amount of potassium 40 in the body A. Billions of becquerels * Dose to Atomic bomb survivors B. About 250 picocuries * You can safety hold this amount of alpha radiation C. 2-10,000 millirem D. 0-5 Gy * One coast to coast flight * A diagnostic X-ray

Note: This page contains sample records for the topic "atomic bomb survivors" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Dental radiography exposure of the Hiroshima and Nagasaki populations  

SciTech Connect

Dental radiography doses in Hiroshima and Nagasaki were estimated on the basis of survey data from dental hospitals and clinics in Hiroshima and Nagasaki, and doses were measured by thermoluminescent dosimeters and a phantom. Doses to organs, including the lens, pituitary fossa, thyroid gland, and skin were calculated from data obtained during a 2-week survey in both cities. The mean caput doses were calculated from the data indicating frequency per year and were tabulated by organs, age, teeth examined, type of examination, population, sex, and city. No significant difference was observed by age, population, sex, or city. Currently the doses incurred during dental radiography may not be sufficiently high to cause bias in the assessments for late radiation effects among atomic-bomb survivors. However, the mean caput thyroid doses of 62 mrad and 67 mrad in Hiroshima and Nagasaki, respectively, cannot be ignored from the standpoint of their potential in contributing to radiation-induced carcinogenesis.

Antoku, S.; Hoshi, M.; Russell, W.J.; Kihara, T.; Sawada, S.; Takeshita, K.; Otake, M.; Yoshinaga, H.; Beach, D.R.

1989-03-01T23:59:59.000Z

442

Atom interferometric gravitational wave detection using heterodyne laser links  

E-Print Network (OSTI)

We propose a scheme based on a heterodyne laser link that allows for long baseline gravitational wave detection using atom interferometry. While the baseline length in previous atom-based proposals is constrained by the need for a reference laser to remain collimated as it propagates between two satellites, here we circumvent this requirement by employing a strong local oscillator laser near each atom ensemble that is phase locked to the reference laser beam. Longer baselines offer a number of potential advantages, including enhanced sensitivity, simplified atom optics, and reduced atomic source flux requirements.

Hogan, Jason M

2015-01-01T23:59:59.000Z

443

Coherent states and holomorphic representations for multilevel atoms  

Science Journals Connector (OSTI)

The notion of atomic coherent states is extended to the multilevel case. Since the representation based on coherent states is convenient in treating collective interactions of atoms with photons, and since many optical processes involve atoms of three or more levels, it is expected that this extension will play a role in the theory of such processes as cascade superfluorescence and superradiant lasing. Like their bosonic counterparts, atomic coherent states may be used to define a holomorphic representation for atomic states and operators. We discuss this in detail and give examples to illustrate applications.

Cao Chang-qi and Fritz Haake

1995-05-01T23:59:59.000Z

444

Radiative friction on an excited atom moving in vacuum  

E-Print Network (OSTI)

It is known that, when an excited atom spontaneously emits one photon, two effects are produced. First, the atom's internal and external states are entangled with the states of the emitted photon. Second, the atom receives a momentum transfered from the photon. In this work, the dynamics of such an atom in vacuum is studied. Through a specific calculation, it is demonstrated that these effects cause the atom to experience, on average, a friction force opposite to its initial velocity. Properties of the force are also discussed.

Wei Guo

2012-04-30T23:59:59.000Z

445

Subwavelength atom localization via quantum coherence in a three-level atomic system  

SciTech Connect

We propose a three-level atomic system where quantum coherence is generated by a classical standing-wave field coupled to the two upper excited decaying levels. Quantum coherence results in cancellation of the spontaneously emitted spectral lines depending on the choice of the phase of the standing wave. We exploit this phenomenon for precision measurement of the atomic position in the standing wave. Measurement of the conditional position probability distribution shows one to eight peaks per unit wavelength of the standing wave. Only one controllable parameter, that is, the phase of the driving standing wave, is enough to control these atomic positions. Along with the other results, the result of obtaining a single peak is remarkable as it enhances the efficiency of our system by a factor of 8.

Ghafoor, Fazal [Centre for Quantum Physics, COMSATS Institute of Information Technology, Islamabad (Pakistan)

2011-12-15T23:59:59.000Z

446

Entanglement dynamics for uniformly accelerated two-level atoms  

E-Print Network (OSTI)

We study, in the paradigm of open quantum systems, the entanglement dynamics of two uniformly accelerated atoms with the same acceleration perpendicular to the separation. The two-atom system is treated as an open system coupled with a bath of fluctuating massless scalar fields in the Minkowski vacuum, and the master equation that governs its evolution is derived. It has been found that, for accelerated atoms with a nonvanishing separation, entanglement sudden death is a general feature when the initial state is entangled, while for those in a separable initial state, entanglement sudden birth only happens for atoms with an appropriate interatomic separation and sufficiently small acceleration. Remarkably, accelerated atoms can get entangled in certain circumstances while the inertial ones in the Minkowski vacuum can not. A comparison between the results of accelerated atoms and those of static ones in a thermal bath shows that, uniformly accelerated atoms exhibit distinct features from those immersed in a th...

Hu, Jiawei

2015-01-01T23:59:59.000Z

447

Nano Positioning of Single Atoms in a Micro Cavity  

E-Print Network (OSTI)

The coupling of individual atoms to a high-finesse optical cavity is precisely controlled and adjusted using a standing-wave dipole-force trap, a challenge for strong atom-cavity coupling. Ultracold Rubidium atoms are first loaded into potential minima of the dipole trap in the center of the cavity. Then we use the trap as a conveyor belt that we set into motion perpendicular to the cavity axis. This allows us to repetitively move atoms out of and back into the cavity mode with a repositioning precision of 135 nm. This makes possible to either selectively address one atom of a string of atoms by the cavity, or to simultaneously couple two precisely separated atoms to a higher mode of the cavity.

Stefan Nussmann; Markus Hijlkema; Bernhard Weber; Felix Rohde; Gerhard Rempe; Axel Kuhn

2005-06-10T23:59:59.000Z

448

Surface-atom force out of thermal equilibrium and its effect on ultra-cold atoms  

E-Print Network (OSTI)

The surface-atom Casimir-Polder-Lifshitz force out of thermal equilibrium is investigated in the framework of macroscopic electrodynamics. Particular attention is devoted to its large distance limit that shows a new, stronger behaviour with respect to the equilibrium case. The frequency shift produced by the surface-atom force on the the center-of-mass oscillations of a harmonically trapped Bose-Einstein condensate and on the Bloch oscillations of an ultra-cold fermionic gas in an optical lattice are discussed for configurations out of thermal equilibrium.

Mauro Antezza

2005-11-14T23:59:59.000Z

449

Analysis of Dose Response for Circulatory Disease After Radiotherapy for Benign Disease  

SciTech Connect

Purpose: To assess the shape of the dose-response for various circulatory disease endpoints, and modifiers by age and time since exposure. Methods and Materials: This was an analysis of the US peptic ulcer data testing for heterogeneity of radiogenic risk by circulatory disease endpoint (ischemic heart, cerebrovascular, other circulatory disease). Results: There were significant excess risks for all circulatory disease, with an excess relative risk Gy{sup -1} of 0.082 (95% CI 0.031-0.140), and ischemic heart disease, with an excess relative risk Gy{sup -1} of 0.102 (95% CI 0.039-0.174) (both p = 0.01), and indications of excess risk for stroke. There were no statistically significant (p > 0.2) differences between risks by endpoint, and few indications of curvature in the dose-response. There were significant (p < 0.001) modifications of relative risk by time since exposure, the magnitude of which did not vary between endpoints (p > 0.2). Risk modifications were similar if analysis was restricted to patients receiving radiation, although the relative risks were slightly larger and the risk of stroke failed to be significant. The slopes of the dose-response were generally consistent with those observed in the Japanese atomic bomb survivors and in occupationally and medically exposed groups. Conclusions: There were excess risks for a variety of circulatory diseases in this dataset, with significant modification of risk by time since exposure. The consistency of the dose-response slopes with those observed in radiotherapeutically treated groups at much higher dose, as well as in lower dose-exposed cohorts such as the Japanese atomic bomb survivors and nuclear workers, implies that there may be little sparing effect of fractionation of dose or low-dose-rate exposure.

Little, Mark P., E-mail: mark.little@nih.gov [Radiation Epidemiology Branch, National Cancer Institute, Executive Plaza South, Rockville, Maryland (United States); Kleinerman, Ruth A. [Radiation Epidemiology Branch, National Cancer Institute, Executive Plaza South, Rockville, Maryland (United States)] [Radiation Epidemiology Branch, National Cancer Institute, Executive Plaza South, Rockville, Maryland (United States); Stovall, Marilyn; Smith, Susan A. [Department of Radiation Physics, University of Texas MD Anderson Cancer Center, Houston, Texas (United States)] [Department of Radiation Physics, University of Texas MD Anderson Cancer Center, Houston, Texas (United States); Mabuchi, Kiyohiko [Radiation Epidemiology Branch, National Cancer Institute, Executive Plaza South, Rockville, Maryland (United States)] [Radiation Epidemiology Branch, National Cancer Institute, Executive Plaza South, Rockville, Maryland (United States)

2012-12-01T23:59:59.000Z

450

ATOMIC HYDROGEN IN A GALACTIC CENTER OUTFLOW  

SciTech Connect

We describe a population of small, high-velocity, atomic hydrogen clouds, loops, and filaments found above and below the disk near the Galactic center. The objects have a mean radius of 15 pc, velocity widths of {approx}14 km s{sup -1}, and are observed at |z| heights up to 700 pc. The velocity distribution of the clouds shows no signature of Galactic rotation. We propose a scenario where the clouds are associated with an outflow from a central star-forming region at the Galactic center. We discuss the clouds as entrained material traveling at {approx}200 km s{sup -1} in a Galactic wind.

McClure-Griffiths, N. M.; Green, J. A.; Hill, A. S. [Australia Telescope National Facility, CSIRO Astronomy and Space Science, Marsfield, NSW 2122 (Australia); Lockman, F. J. [National Radio Astronomy Observatory, Green Bank, WV 24944 (United States); Dickey, J. M. [School of Physics and Mathematics, University of Tasmania, TAS 7001 (Australia); Gaensler, B. M.; Green, A. J., E-mail: naomi.mcclure-griffiths@csiro.au [Sydney Institute for Astronomy, School of Physics, The University of Sydney, NSW 2006 (Australia)

2013-06-10T23:59:59.000Z

451

Efficiency optimization for atomic frequency comb storage  

SciTech Connect

We study the efficiency of the atomic frequency comb storage protocol. We show that for a given optical depth, the preparation procedure can be optimize to significantly improve the retrieval. Our prediction is well supported by the experimental implementation of the protocol in a Tm{sup 3+}:YAG crystal. We observe a net gain in efficiency from 10 to 17% by applying the optimized preparation procedure. In the perspective of high bandwidth storage, we investigate the protocol under different magnetic fields. We analyze the effect of the Zeeman and superhyperfine interaction.

Bonarota, M.; Ruggiero, J.; Le Goueet, J.-L.; Chaneliere, T. [Laboratoire Aime Cotton, CNRS-UPR 3321, Univ. Paris-Sud, Bat. 505, F-91405 Orsay Cedex (France)

2010-03-15T23:59:59.000Z

452

The solar system mimics a hydrogen atom  

E-Print Network (OSTI)

The solar system and the hydrogen atom are two well known systems on different scales and look unrelated: The former is a classical system on the scale of about billions of kilometers and the latter a quantum system of about tens of picometers. Here we show a connection between them. Specifically, we find that the orbital radii of the planets mimic the mean radii of the energy levels of a quantum system under the Coulomb-like potential. This connection might be explained by very light dark matter which manifests quantum behavior in the solar system, thereby hinting at a dark matter mass around $8 \\times 10^{-14}$ electron-volts.

Je-An Gu

2014-03-28T23:59:59.000Z

453

Two-frequency excitation of hydrogen atoms  

Science Journals Connector (OSTI)

When a hydrogen atom in a state with principal quantum number ni is irradiated simultaneously with light of frequency ?L, nearly that required to produce a transition to a higher state with principal quantum number nf and with microwave radiation of frequency ?, the transition is very probable when the resonance condition ?L+k?=Ef-Ei is satisfied, the emission or absorption of the net number k of microwave photons just compensating for the detuning of the light from the resonance. This process is analyzed with the use of a forward scattering method and the results are used to discuss the experiments of Bayfield et al. on the excitation of hydrogen.

P. Stehle

1982-11-01T23:59:59.000Z

454

Wireless Network Control of Interacting Rydberg Atoms  

Science Journals Connector (OSTI)

We identify a relation between the dynamics of ultracold Rydberg gases in which atoms experience a strong dipole blockade and spontaneous emission, and a stochastic process that models certain wireless random-access networks. We then transfer insights and techniques initially developed for these wireless networks to the realm of Rydberg gases, and explain how the Rydberg gas can be driven into crystal formations using our understanding of wireless networks. Finally, we propose a method to determine Rabi frequencies (laser intensities) such that particles in the Rydberg gas are excited with specified target excitation probabilities, providing control over mixed-state populations.

Jaron Sanders; Rick van Bijnen; Edgar Vredenbregt; Servaas Kokkelmans

2014-04-22T23:59:59.000Z

455

The New Element Berkelium (Atomic Number 97)  

DOE R&D Accomplishments (OSTI)

An isotope of the element with atomic number 97 has been discovered as a product of the helium-ion bombardment of americium. The name berkelium, symbol Bk, is proposed for element 97. The chemical separation of element 97 from the target material and other reaction products was made by combinations of precipitation and ion exchange adsorption methods making use of its anticipated (III) and (IV) oxidation states and its position as a member of the actinide transition series. The distinctive chemical properties made use of in its separation and the equally distinctive decay properties of the particular isotope constitute the principal evidence for the new element.

Seaborg, G. T.; Thompson, S. G.; Ghiorso, A.

1950-04-26T23:59:59.000Z

456

Quantum computing with alkaline earth atoms  

E-Print Network (OSTI)

We present a complete scheme for quantum information processing using the unique features of alkaline earth atoms. We show how two completely independent lattices can be formed for the $^1$S$_0$ and $^3$P$_0$ states, with one used as a storage lattice for qubits encoded on the nuclear spin, and the other as a transport lattice to move qubits and perform gate operations. We discuss how the $^3$P$_2$ level can be used for addressing of individual qubits, and how collisional losses from metastable states can be used to perform gates via a lossy blockade mechanism.

Andrew J. Daley; Martin M. Boyd; Jun Ye; Peter Zoller

2008-08-14T23:59:59.000Z

457

E-Print Network 3.0 - atomic spectroscopy study Sample Search...  

NLE Websites -- All DOE Office Websites (Extended Search)

A partial sampling of these techniques includes: Absorption spectroscopy Atomic absorption... spectroscopy Atomic emission ... Source: Yucca Mountain Project,...

458

E-Print Network 3.0 - atomic force spectroscopy Sample Search...  

NLE Websites -- All DOE Office Websites (Extended Search)

Langmuir trough Atomic force microscope Optical microscope... W ultrasonic horn Atomic absorption spectrophotometer UVVIS spectrophotometer Centrifuge p......

459

Testing atomic mass models with radioactive beams  

SciTech Connect

Significantly increased yields of new or poorly characterized exotic isotopes that lie far from beta-decay stability can be expected when radioactive beams are used to produce these nuclides. Measurements of the masses of these new species are very important. Such measurements are motivated by the general tendency of mass models to diverge from one another upon excursions from the line of beta-stability. Therefore in these regions (where atomic mass data are presently nonexistent or sparse) the models can be tested rigorously to highlight the features that affect the quality of their short-range and long-range extrapolation properties. Selection of systems to study can be guided, in part, by a desire to probe those mass regions where distinctions among mass models are most apparent and where yields of exotic isotopes, produced via radioactive beams, can be optimized. Identification of models in such regions that have good predictive properties will aid materially in guiding the selection of additional experiments which ultimately will provide expansion of the atomic mass database for further refinement of the mass models. 6 refs., 5 figs.

Haustein, P.E.

1989-01-01T23:59:59.000Z

460

String model of the Hydrogen Atom  

E-Print Network (OSTI)

A non-moving electron hydrogen model is proposed, resolving a long standing contradiction (94 years) in the hydrogen atom. This, however, forces to not use the "in an orbit point particle kinetic energy" as the phenomenon responsible for the atom stability. The repulsion between the masses of the electron and proton is what is responsible of such stability. The mass of the electron is a field fully described by the uncertainty principle through the confinement of the particle, which is also consistent with the general theory of relativity that states: "mass-energy tells the space how to bend". Ergo, mass exerts a tension on its surrounding space and the lighter the mass the larger the space it will occupy. Based on this concept it is proposed that the orbital is the electron. The electron's orbitals are just the electron's different ways of intersecting the space; with different magnetic momenta. The coupling of this momenta with the magnetic moment of the proton finally explains the hyperfine structure of the hydrogen spectrum with an overwhelming simplicity

Omar Yepez

2007-01-31T23:59:59.000Z

Note: This page contains sample records for the topic "atomic bomb survivors" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

L. James Rainwater and the Atomic Nuclei  

NLE Websites -- All DOE Office Websites (Extended Search)

L. James Rainwater and the Atomic Nucleus L. James Rainwater and the Atomic Nucleus Resources with Additional Information James Rainwater Courtesy AIP Emilio Segre Visual Archives, W. F. Meggers Gallery of Nobel Laureates "During W.W. II, I [James Rainwater] worked ... [on the] Manhattan Project, mainly doing pulsed neutron spectroscopy using the small Columbia cyclotron. ... [Maria Geoppert-Mayer] shell model suggestion in 1949 was a great triumph and fitted my belief that a nuclear shell model should represent a proper approach to understanding nuclear structure. Combined with developments of Weizsaker's semi-empirical explanation of nuclear binding, and the Bohr-Wheeler 1939 paper on nuclear fission, emphasizing distorted nuclear shapes, I was prepared to see an explanation of large nuclear quadrupole moments. The full concept came to me in late 1949 when attending a colloquium by Prof. C.H. Townes who described the experimental situation for nuclear quadrupole moments. It was a fortuitous situation made even more so by the fact that I was sharing an office with Aage Bohr that year. We had many discussions of the implications, subsequently very successfully exploited by Bohr, [Ben] Mottelson, and others of the Copenhagen Institute."1

462

Reaction studies of hot silicon, germanium and carbon atoms  

SciTech Connect

The goal of this project was to increase the authors understanding of the interplay between the kinetic and electronic energy of free atoms and their chemical reactivity by answering the following questions: (1) what is the chemistry of high-energy carbon silicon and germanium atoms recoiling from nuclear transformations; (2) how do the reactions of recoiling carbon, silicon and germanium atoms take place - what are the operative reaction mechanisms; (3) how does the reactivity of free carbon, silicon and germanium atoms vary with energy and electronic state, and what are the differences in the chemistry of these three isoelectronic atoms This research program consisted of a coordinated set of experiments capable of achieving these goals by defining the structures, the kinetic and internal energy, and the charge states of the intermediates formed in the gas-phase reactions of recoiling silicon and germanium atoms with silane, germane, and unsaturated organic molecules, and of recoiling carbon atoms with aromatic molecules. The reactions of high energy silicon, germanium, and carbon atoms created by nuclear recoil were studied with substrates chosen so that their products illuminated the mechanism of the recoil reactions. Information about the energy and electronic state of the recoiling atoms at reaction was obtained from the variation in end product yields and the extent of decomposition and rearrangement of primary products (usually reactive intermediates) as a function of total pressure and the concentration of inert moderator molecules that remove kinetic energy from the recoiling atoms and can induce transitions between electronic spin states. 29 refs.

Gaspar, P.P.

1990-11-01T23:59:59.000Z

463

Fine structure changing collisions between ultra-cold lithium atoms  

SciTech Connect

The authors have designed and assembled an experiment to determine the rate of fine structure changing collisions between ultra-cold ({approximately} 1 mK) laser cooled Li atoms. The atoms are confined by a magneto-optical trap which consists of six polarized orthogonal laser beams tuned slightly below the 2S{sub 1/2}-2P{sub 3/2} resonance frequency of lithium. Measurements show that about 2 x 10{sup 7} atoms are confined to a roughly spherical region of about 1 mm in diameter. Fine structure changing collisions occur when an atom in the 2S{sub 1/2} state and an atom in the 2P{sub 3/2} state collide, and yield an atom in the 2S{sub 1/2} state and an atom in the 2P{sub 1/2} state, with an energy release corresponding to about 10 GHz. This energy adds kinetic energy to the atoms in the trap, and knocks atoms out of the trap. The authors have devised a method to measure the rate of this collisional loss mechanism. The method uses a laser diode and a dye laser to selectively photo-ionize the 2P{sub 1/2} atoms, and a channeltron particle multipiler measures the rate of ion formation. We will report the progress of this experiment.

Anderson, B.P.; Ritchie, N.W.M.; Xiao, Y.Y. [and others

1992-12-01T23:59:59.000Z

464

Novel Atomic Coherence and Interference Effects in Quantum Optics and Atomic Physics  

E-Print Network (OSTI)

. . . . . . . . . . . . . . . . . . . . . . . . . 7 1. Probability Amplitude Method . . . . . . . . . . . . . . . 9 2. Density Matrix Approach . . . . . . . . . . . . . . . . . . 12 B. Maxwell-Schro¨dinger Equation . . . . . . . . . . . . . . . . . 14 C. Three-Level Atom.... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 8 Pulse shapes given by Eq.(3.17). (a) Pulse shapes with varying ? and c = 2, q = ?1, ab = 0. (b) Pulse shapes with varying c and ? = 2, q = ?1, ab = 0. . . . . . . . . . . . . . . . . . . . . . . . . . . 30 xii FIGURE Page 9 Pulse shapes...

Jha, Pankaj

2012-10-19T23:59:59.000Z

465

The 1977 atomic mass evaluation: in four parts part I. Atomic mass table  

Science Journals Connector (OSTI)

Based on a least-squares fit to experimental data for all nuclides for which data are available and on estimates obtained from systematics for many other nuclides, we present a table of atomic masses, of mass excesses, of total binding energies, and of beta-decay energies, the last three quantities in energy units.

A.H. Wapstra; K. Bos

1977-01-01T23:59:59.000Z

466

Sixteenth International Conference on the physics of electronic and atomic collisions  

SciTech Connect

This report contains abstracts of papers on the following topics: photons, electron-atom collisions; electron-molecule collisions; electron-ion collisions; collisions involving exotic species; ion- atom collisions, ion-molecule or atom-molecule collisions; atom-atom collisions; ion-ion collisions; collisions involving rydberg atoms; field assisted collisions; collisions involving clusters and collisions involving condensed matter.

Dalgarno, A.; Freund, R.S.; Lubell, M.S.; Lucatorto, T.B. (eds.)

1989-01-01T23:59:59.000Z

467

Probing Pair-Correlated Fermionic Atoms through Correlations in Atom Shot Noise M. Greiner,* C. A. Regal, J. T. Stewart, and D. S. Jin  

E-Print Network (OSTI)

Probing Pair-Correlated Fermionic Atoms through Correlations in Atom Shot Noise M. Greiner,* C. A atoms are created through dissociation of weakly bound molecules near a magnetic-field Feshbach resonance. We show that correlations between atoms in different spin states can be detected using the atom

Jin, Deborah

468

Direct atomic flux measurement of electron-beam evaporated yttrium with a diode-laser-based atomic absorption monitor at 668 nm  

E-Print Network (OSTI)

with a diode-laser-based atomic absorption AA monitor at 668 nm. Atomic number density and velocity were measured through absorption and Doppler shift measurements to provide the atomic flux. The AA previously developed diode-laser-based atomic absorption AA monitors for atomic density measurements

Fejer, Martin M.

469

Magnetic-film atom chip with 10 $?$m period lattices of microtraps for quantum information science with Rydberg atoms  

E-Print Network (OSTI)

We describe the fabrication and construction of a setup for creating lattices of magnetic microtraps for ultracold atoms on an atom chip. The lattice is defined by lithographic patterning of a permanent magnetic film. Patterned magnetic-film atom chips enable a large variety of trapping geometries over a wide range of length scales. We demonstrate an atom chip with a lattice constant of 10 $\\mu$m, suitable for experiments in quantum information science employing the interaction between atoms in highly-excited Rydberg energy levels. The active trapping region contains lattice regions with square and hexagonal symmetry, with the two regions joined at an interface. A structure of macroscopic wires, cut out of a silver foil, was mounted under the atom chip in order to load ultracold $^{87}$Rb atoms into the microtraps. We demonstrate loading of atoms into the square and hexagonal lattice sections simultaneously and show resolved imaging of individual lattice sites. Magnetic-film lattices on atom chips provide a versatile platform for experiments with ultracold atoms, in particular for quantum information science and quantum simulation.

V. Y. F. Leung; D. R. M. Pijn; H. Schlatter; L. Torralbo-Campo; A. La Rooij; G. B. Mulder; J. Naber; M. L. Soudijn; A. Tauschinsky; C. Abarbanel; B. Hadad; E. Golan; R. Folman; R. J. C. Spreeuw

2013-11-18T23:59:59.000Z

470

Present and Future Computing needs in Atomic Physics  

NLE Websites -- All DOE Office Websites (Extended Search)

in Atomic Physics in Atomic Physics John Ludlow, Connor Ballance, Stuart Loch, Teck-Ghee Lee, Mitch Pindzola Auburn University Science Goals * To calculate atomic and molecular collision processes of relevance to controlled fusion energy * Processes include electron-impact excitation and ionization of atoms and their ions, dielectronic recombination of ions and heavy particle impact excitation, ionization and charge transfer with atoms and ions * Ensure collisional data are interfaced with plasma modelling codes (ADAS, TRANSP) * We are presently focused on light elements like H, He, Li, Be, B, C, Ne * In the next 3-5 years we shall look at heavier fusion related elements such as Xe, Mo, W ADAS * The fundamental atomic data is processed through the ADAS suite of codes to give generalized collisional-

471

Truman Signs Atomic Energy Act | National Nuclear Security Administration  

NLE Websites -- All DOE Office Websites (Extended Search)

Truman Signs Atomic Energy Act | National Nuclear Security Administration Truman Signs Atomic Energy Act | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Home > About Us > Our History > NNSA Timeline > Truman Signs Atomic Energy Act Truman Signs Atomic Energy Act August 01, 1946 Washington, DC Truman Signs Atomic Energy Act President Truman signs the Atomic Energy Act of 1946, leading to the

472

Truman Signs Atomic Energy Act | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

Truman Signs Atomic Energy Act | National Nuclear Security Administration Truman Signs Atomic Energy Act | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Home > About Us > Our History > NNSA Timeline > Truman Signs Atomic Energy Act Truman Signs Atomic Energy Act August 01, 1946 Washington, DC Truman Signs Atomic Energy Act President Truman signs the Atomic Energy Act of 1946, leading to the

473

Reaffirming America's Commitment to the Peaceful Use of the Atom |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Reaffirming America's Commitment to the Peaceful Use of the Atom Reaffirming America's Commitment to the Peaceful Use of the Atom Reaffirming America's Commitment to the Peaceful Use of the Atom September 19, 2011 - 5:03pm Addthis Secretary Chu meets with officials during a visit to the International Atomic Energy Agency's (IAEA) Incident and Emergency Center in Vienna. | Photo Courtesy of IAEA. Secretary Chu meets with officials during a visit to the International Atomic Energy Agency's (IAEA) Incident and Emergency Center in Vienna. | Photo Courtesy of IAEA. Dan Leistikow Dan Leistikow Former Director, Office of Public Affairs Secretary Chu is in Vienna, Austria as he leads the United States delegation to the General Conference of the International Atomic Energy Agency, the United Nations organization dedicated to the safe and peaceful

474

Detection of single atoms by resonance ionization spectroscopy  

SciTech Connect

Rutherford's idea for counting individual atoms can, in principle, be implemented for nearly any type of atom, whether stable or radioactive, by using methods of resonance ionization. With the RIS technique, a laser is tuned to a wavelength which will promote a valence electron in a Z-selected atom to an excited level. Additional resonance or nonresonance photoabsorption steps are used to achieve nearly 100% ionization efficiencies. Hence, the RIS process can be saturated for the Z-selected atoms; and since detectors are available for counting either single electrons or positive ions, one-atom detection is possible. Some examples are given of one-atom detection, including that of the noble gases, in order to show complementarity with AMS methods. For instance, the detection of /sup 81/Kr using RIS has interesting applications for solar neutrino research, ice-cap dating, and groundwater dating. 39 refs., 7 figs., 2 tabs.

Hurst, G.S.

1986-01-01T23:59:59.000Z

475

Controlling interactions between highly-magnetic atoms with Feshbach resonances  

E-Print Network (OSTI)

This paper reviews current experimental and theoretical progress in the study of dipolar quantum gases of ground and meta-stable atoms with a large magnetic moment. We emphasize the anisotropic nature of Feshbach resonances due to coupling to fast-rotating resonant molecular states in ultracold s-wave collisions between magnetic atoms in external magnetic fields. The dramatic differences in the distribution of resonances of magnetic $^7$S$_3$ chromium and magnetic lanthanide atoms with a submerged 4f shell and non-zero electron angular momentum is analyzed. We focus on Dysprosium and Erbium as important experimental advances have been recently made to cool and create quantum-degenerate gases for these atoms. Finally, we describe progress in locating resonances in collisions of meta-stable magnetic atoms in electronic P states with ground-state atoms, where an interplay between collisional anisotropies and spin-orbit coupling exists.

Svetlana Kotochigova

2014-10-14T23:59:59.000Z

476

Progress on a Miniature Cold-Atom Frequency Standard  

E-Print Network (OSTI)

Atomic clocks play a crucial role in timekeeping, communications, and navigation systems. Recent efforts enabled by heterogeneous MEMS integration have led to the commercial introduction of Chip-Scale Atomic Clocks (CSAC) with a volume of 16 cm3, power consumption of 120 mW, and instability (Allan Deviation) of {\\sigma}({\\tau} = 1 sec) cooled atoms. In this paper, we present results describing the development of a miniature cold-atom apparatus for operation as a frequency standard. Our architecture is based on laser-cooling a sample of neutral atoms in a Magneto-Optical Trap (MOT) using a conical retro-reflector in a miniature vacuum chamber. Trapping the atoms in vacuum and performing microwave interrogation in the dark reduces the temperature sensitivity compared to va...

Scherer, David R; Mescher, Mark; Stoner, Richard; Timmons, Brian; Rogomentich, Fran; Tepolt, Gary; Mahnkopf, Sven; Noble, Jay; Chang, Sheng; Taylor, Dwayne

2014-01-01T23:59:59.000Z

477

H atom probes of radiation chemistry: Solids and liquids  

SciTech Connect

H atoms are ubiquitous in radiation chemistry. Radiolysis of most substances yield H atoms and studies of the mechanisms of their production are as old as the field of radiation chemistry. The problem is that study or products does not easily reveal the chemical mechanisms involved even with the clever use of isotopes. Time-resolved pulsed electron paramagnetic resonance (EPR) was used to study formation and decay kinetics of spin-polarized mobile H atoms in radiolysis of wet fused silica containing {approximately} 1,200 ppm of SiOH groups. Two reactions of H atoms can be distinguished: a slow component corresponding to scavenging of H atoms by metastable paramagnetic centers and a fast component which is ascribed to a reaction of a short-lived small polaron (intrinsic hole) with H atoms.

Trifunac, A.D.; Shkrob, I.A. [Argonne National Lab., IL (United States). Chemistry Div.

1998-12-31T23:59:59.000Z

478

Wave mechanics of a two-wire atomic beam splitter  

SciTech Connect

We consider the problem of an atomic beam propagating quantum mechanically through an atom beam splitter. Casting the problem in an adiabatic representation (in the spirit of the Born-Oppenheimer approximation in molecular physics) sheds light on explicit effects due to nonadiabatic passage of the atoms through the splitter region. We are thus able to probe the fully three-dimensional structure of the beam splitter, gathering quantitative information about mode mixing, splitting ratios, and reflection and transmission probabilities.

Bortolotti, Daniele C.E.; Bohn, John L. [JILA and Department of Physics, University of Colorado, Boulder, Colorado 80309-0440 (United States)

2004-03-01T23:59:59.000Z

479

Hydrogen atom in phase space: The Wigner representation  

E-Print Network (OSTI)

We have found an effective method of calculating the Wigner function, being a quantum analogue of joint probability distribution of position and momentum, for bound states of nonrelativistic hydrogen atom. The formal similarity between the eigenfunctions of nonrelativistic hydrogen atom in the momentum representation and Klein-Gordon propagators has allowed the calculation of the Wigner function for an arbitrary bound state of the hydrogen atom. These Wigner functions for some low lying states are depicted and discussed.

L. Praxmeyer; J. Mostowski; K. Wodkiewicz

2005-04-06T23:59:59.000Z

480

Collisional excitation of water by hydrogen atoms  

E-Print Network (OSTI)

We present quantum dynamical calculations that describe the rotational excitation of H$_2$O due to collisions with H atoms. We used a recent, high accuracy potential energy surface, and solved the collisional dynamics with the close-coupling formalism, for total energies up to 12 000 cm$^{-1}$. From these calculations, we obtained collisional rate coefficients for the first 45 energy levels of both ortho- and para-H$_2$O and for temperatures in the range T = 5-1500 K. These rate coefficients are subsequently compared to the values previously published for the H$_2$O / He and H$_2$O / H$_2$ collisional systems. It is shown that no simple relation exists between the three systems and that specific calculations are thus mandatory.

Daniel, F; Dagdigian, P J; Dubernet, M -L; lique, F; foręts, G Pineau des

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "atomic bomb survivors" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


481

Atomic line emission analyzer for hydrogen isotopes  

DOE Patents (OSTI)

Apparatus for isotopic analysis of hydrogen comprises a low pressure chamber into which a sample of hydrogen is introduced and then exposed to an electrical discharge to excite the electrons of the hydrogen atoms to higher energy states and thereby cause the emission of light on the return to lower energy states, a Fresnel prism made at least in part of a material anomalously dispersive to the wavelengths of interest for dispersing the emitted light, and a photodiode array for receiving the dispersed light. The light emitted by the sample is filtered to pass only the desired wavelengths, such as one of the lines of the Balmer series for hydrogen, the wavelengths of which differ slightly from one isotope to another. The output of the photodiode array is processed to determine the relative amounts of each isotope present in the sample. Additionally, the sample itself may be recovered using a metal hydride.

Kronberg, James W. (108 Independent Blvd., Aiken, SC 29801)

1993-01-01T23:59:59.000Z

482

Off-resonance atomic Bragg scattering  

SciTech Connect

We performed extensive measurements on the scattering efficiency of atomic Bragg scattering on a standing light wave up to sixth order and developed a two-state Demkov model to explain the results. Using an effective 2N-photon coupling between the original and the reflected momentum states and the assumption of a mostly adiabatic transfer we derived the scattering probability. This probability has two factors: an oscillating part which represents the well-known Pendelloesung oscillation and a part that is peaked in the energy difference between the two momentum states. This last part describes the tolerance on the Bragg condition for angular misalignment. Comparison of the measurements and numerical simulations with this model shows good agreement.

Jansen, M. A. H. M.; Domen, K. F. E. M.; Beijerinck, H. C. W.; Leeuwen, K. A. H. van [Eindhoven University of Technology, P.O. Box 513, 5600MB Eindhoven (Netherlands)

2007-11-15T23:59:59.000Z

483

Bettis Atomic Power Laboratory. Environmental summary report  

SciTech Connect

The Bettis Atomic Power Laboratory (Bettis) is owned by the US Department of Energy (DOE) and has been operated under Government contract by the Westinghouse Electric Corporation since 1949. The Bettis Site in West Mifflin, Pennsylvania conducts research and development work on improved nuclear propulsion plants for US Navy warships and is the headquarters for all of the Laboratory`s operations. For many years, environmental monitoring has been performed to demonstrate that the Bettis Site is being operated in accordance with environmental standards. While the annual report describes monitoring practices and results, it does not describe the nature and environmental aspects of work and facilities at the Bettis Site nor give a historical perspective of Bettis` operations. The purpose of this report is to provide this information as well as background information, such as the geologic and hydrologic nature of the Bettis Site, pertinent to understanding the environmental aspects of Bettis operations. Waste management practices are also described.

Not Available

1992-01-01T23:59:59.000Z

484

Atomic line emission analyzer for hydrogen isotopes  

DOE Patents (OSTI)

Apparatus for isotopic analysis of hydrogen comprises a low pressure chamber into which a sample of hydrogen is introduced and then exposed to an electrical discharge to excite the electrons of the hydrogen atoms to higher energy states and thereby cause the emission of light on the return to lower energy states, a Fresnel prism made at least in part of a material anomalously dispersive to the wavelengths of interest for dispersing the emitted light, and a photodiode array for receiving the dispersed light. The light emitted by the sample is filtered to pass only the desired wavelengths, such as one of the lines of the Balmer series for hydrogen, the wavelengths of which differ slightly from one isotope to another. The output of the photodiode array is processed to determine the relative amounts of each isotope present in the sample. Additionally, the sample itself may be recovered using, a metal hydride.

Kronberg, J.W.

1991-05-08T23:59:59.000Z

485

Dark atoms: asymmetry and direct detection  

SciTech Connect

We present a simple UV completion of Atomic Dark Matter (aDM) in which heavy right-handed neutrinos decay to induce both dark and lepton number densities. This model addresses several outstanding cosmological problems: the matter/anti-matter asymmetry, the dark matter abundance, the number of light degrees of freedom in the early universe, and the smoothing of small-scale structure. Additionally, this realization of aDM may reconcile the CoGeNT excess with recently published null results and predicts a signal in the CRESST Oxygen band. We also find that, due to unscreened long-range interactions, the residual unrecombined dark ions settle into a diffuse isothermal halo.

Kaplan, David E.; Krnjaic, Gordan Z. [Department of Physics and Astronomy, The Johns Hopkins University, 3400 N. Charles Street, Baltimore, MD (United States); Rehermann, Keith R. [Center for Theoretical Physics, MIT, 77 Mass Ave., Cambridge, MA (United States); Wells, Christopher M., E-mail: dkaplan@pha.jhu.edu, E-mail: gordan@pha.jhu.edu, E-mail: krmann@mit.edu, E-mail: christopher.wells@houghton.edu [Department of Physics, Houghton College, 1 Willard Avenue, Houghton, NY (United States)

2011-10-01T23:59:59.000Z

486

Atomic line emission analyzer for hydrogen isotopes  

DOE Patents (OSTI)

Apparatus for isotopic analysis of hydrogen comprises a low pressure chamber into which a sample of hydrogen is introduced and then exposed to an electrical discharge to excite the electrons of the hydrogen atoms to higher energy states and thereby cause the emission of light on the return to lower energy states, a Fresnel prism made at least in part of a material anomalously dispersive to the wavelengths of interest for dispersing the emitted light, and a photodiode array for receiving the dispersed light. The light emitted by the sample is filtered to pass only the desired wavelengths, such as one of the lines of the Balmer series for hydrogen, the wavelengths of which differ slightly from one isotope to another. The output of the photodiode array is processed to determine the relative amounts of each isotope present in the sample. Additionally, the sample itself may be recovered using a metal hydride.

Kronberg, J.W.

1993-03-30T23:59:59.000Z

487

Ge atom distribution in buried dome islands  

SciTech Connect

Laser-assisted atom probe tomography microscopy is used to provide direct and quantitative compositional measurements of tri-dimensional Ge distribution in Ge dome islands buried by Si. Sub-nanometer spatial resolution 3D imaging shows that islands keep their facets after deposition of the Si cap, and that the island/substrate/Si cap interfaces are abrupt. The core of the domes contains 55% of Ge, while the island shell exhibits a constant composition of 15% of Ge. The {l_brace}113{r_brace} facets of the islands present a Ge enrichment up to 35%. The wetting layer composition is not homogeneous, varying from 9.5% to 30% of Ge.

Portavoce, A.; Berbezier, I.; Ronda, A.; Mangelinck, D. [CNRS, IM2NP, Case 142, 13397 Marseille Cedex 20 (France); Hoummada, K. [Aix-Marseille Universite, IM2NP, Case 142, 13397 Marseille Cedex 20 (France)

2012-04-16T23:59:59.000Z

488

Civilian Control of Atomic Energy, 1945-1946  

Office of Scientific and Technical Information (OSTI)

President Truman signs the Atomic Energy Act, creating the Atomic Energy Commission, August 1, 1946. Senator Brien McMahon is second from right. CIVILIAN CONTROL OF ATOMIC ENERGY President Truman signs the Atomic Energy Act, creating the Atomic Energy Commission, August 1, 1946. Senator Brien McMahon is second from right. CIVILIAN CONTROL OF ATOMIC ENERGY (1945-1946) Events > Postscript -- The Nuclear Age, 1945-Present Informing the Public, August 1945 The Manhattan Engineer District, 1945-1946 First Steps toward International Control, 1944-1945 Search for a Policy on International Control, 1945 Negotiating International Control, 1945-1946 Civilian Control of Atomic Energy, 1945-1946 Operation Crossroads, July 1946 The VENONA Intercepts, 1946-1980 The Cold War, 1945-1990 Nuclear Proliferation, 1949-present While negotiations on international control of the atom went nowhere and deteriorating relations between the United States and the Soviet Union ushered in the Cold War, a domestic debate took place over the long-term management of AmericaÂ’s nuclear program. As they did with international control, Vannevar Bush and James B. Conant took the initial lead. In September 1944, they proposed to Secretary of War Henry L. Stimson setting up postwar a civilian twelve-member atomic energy commission, with four members representing the military services, that would control not only large-scale production but also research involving minute amounts of material.

489

Cavity quantum electrodynamics with a Rydberg-blocked atomic ensemble  

SciTech Connect

The realization of a Jaynes-Cummings model in the optical domain is proposed for an atomic ensemble. The scheme exploits the collective coupling of the atoms to a quantized cavity mode and the nonlinearity introduced by coupling to high-lying Rydberg states. A two-photon transition resonantly couples the single-atom ground state |g> to a Rydberg state |e> via a nonresonant intermediate state |i>, but due to the interaction between Rydberg atoms only a single atom can be resonantly excited in the ensemble. This restricts the state space of the ensemble to the collective ground state |G> and the collectively excited state |E> with a single Rydberg excitation distributed evenly on all atoms. The collectively enhanced coupling of all atoms to the cavity field with coherent coupling strengths which are much larger than the decay rates in the system leads to the strong coupling regime of the resulting effective Jaynes-Cummings model. We use numerical simulations to show that the cavity transmission can be used to reveal detailed properties of the Jaynes-Cummings ladder of excited states and that the atomic nonlinearity gives rise to highly nontrivial photon emission from the cavity. Finally, we suggest that the absence of interactions between remote Rydberg atoms may, due to a combinatorial effect, induce a cavity-assisted excitation blockade whose range is larger than the typical Rydberg dipole-dipole interaction length.

Guerlin, Christine [Institute for Quantum Electronics, ETH Zuerich, CH-8093 Zuerich (Switzerland); Thales Research and Technology, Campus Polytechnique, 1 avenue Augustin Fresnel, F-91767 Palaiseau Cedex (France); Brion, Etienne [Laboratoire Aime Cotton, CNRS, Campus d'Orsay, F-91405, Orsay (France); Esslinger, Tilman [Institute for Quantum Electronics, ETH Zuerich, CH-8093 Zuerich (Switzerland); Moelmer, Klaus [Lundbeck Foundation Theoretical Center for Quantum System Research, Department of Physics and Astronomy, University of Aarhus, DK-8000 (Denmark)

2010-11-15T23:59:59.000Z

490

Thermal effects on the stability of excited atoms in cavities  

SciTech Connect

An atom, coupled linearly to an environment, is considered in a harmonic approximation in thermal equilibrium inside a cavity. The environment is modeled by an infinite set of harmonic oscillators. We employ the notion of dressed states to investigate the time evolution of the atom initially in the first excited level. In a very large cavity (free space) for a long elapsed time, the atom decays and the value of its occupation number is the physically expected one at a given temperature. For a small cavity the excited atom never completely decays and the stability rate depends on temperature.

Khanna, F. C.; Malbouisson, A. P. C.; Malbouisson, J. M. C.; Santana, A. E. [Department of Physics, University of Alberta, Edmonton, Alberta T6G 2J1 (Canada) and TRIUMF, Vancouver, British Columbia V6T 2A3 (Canada); Centro Brasileiro de Pesquisas Fisicas/MCT, 22290-180 Rio de Janeiro, Rio de Janeiro (Brazil); Instituto de Fisica, Universidade Federal da Bahia, 40.210-310 Salvador, Bahia (Brazil); Instituto de Fisica, Universidade de Brasilia, 70910-900 Brasilia, Distrito Federal (Brazil) and Department of Physics, University of Alberta, Edmonton, Alberta T6G 2J1 (Canada)

2010-03-15T23:59:59.000Z

491

Electromagnetically Induced Transparency in a Double Well Atomic Josephson Junction  

E-Print Network (OSTI)

observation of these Josephson junction resonances. 2.dressed Bose condensed Josephson junction Let us consider ain a Double Well Atomic Josephson Junction J.O. Weatherall

Weatherall, J. O.; Search, C. P.

2009-01-01T23:59:59.000Z

492

LSU EFRC - Center for Atomic Level Catalyst Design - Contact...  

NLE Websites -- All DOE Office Websites (Extended Search)

Contact Us >> space control Center for Atomic-Level Catalyst Design (CALCD) 110 Chemical Engineering South Stadium Road Baton Rouge, LA 70803 Telephone: 225.578.1426 Fax:...

493

ATOMIC BEAM STUDIES IN THE RHIC H-JET POLARIMETER.  

SciTech Connect

The results of atomic beam production studies are presented. Improved cooling of the atoms before jet formation in the dissociator cold nozzle apparently reduces the atomic beam velocity spread and improves beam focusing conditions. A carefully designed sextupole separating (and focusing) magnet system takes advantage of the high brightness source. As a result a record beam intensity of a 12.4 {center_dot} 10{sup 16} atoms/s was obtained within 10 mm acceptance at the collision point. The results of the polarization dilution factor measurements (by the hydrogen molecules at the collision point) are also presented.

MAKDISI,Y.; ZELENSKI,A.; GRAHAM,D.; KOKHANOVSKI,S.; MAHLER,G.; NASS,A.; RITTER,J.; ZUBETS,V.; ET AL.

2005-01-28T23:59:59.000Z

494

Towards a quantum gas microscope for fermionic atoms .  

E-Print Network (OSTI)

??This thesis reports the achievement of a two-species apparatus for use in an upcoming experiment with fermionic ultracold atomic gases. First, we describe the construction… (more)

Ramasesh, Vinay (Vinay V.)

2012-01-01T23:59:59.000Z

495

Individual Trapped Atoms for Cavity QED Quantum Information Applications.  

E-Print Network (OSTI)

??To utilize a single atom as a quantum bit for a quantum computer requires exquisite control over the internal and external degrees of freedom. This… (more)

Fortier, Kevin Michael

2007-01-01T23:59:59.000Z

496

Atoms in Valence Bond. Method, implementation and application.  

E-Print Network (OSTI)

??The Atoms in Valence Bond (AiVB) approach is presented. The main goal was to develop a new and innovative approach, within the existing Valence Bond… (more)

Zielinski, M.L.

2012-01-01T23:59:59.000Z

497

Constituting Atoms of a $?$ Algebra via Its Generator  

E-Print Network (OSTI)

To constitute atoms of a $\\sigma$ algebra is not a easy task due to the large number of its elements. However, determining them via generators seems a feasible and simple way since most $\\sigma$ algebras are generated by their smaller proper subsets. Precisely, under some conditions each atom of a $\\sigma$ algebra equals the intersection of the elements containing a point of the atom in the generator. In this paper, a very weak sufficient condition for determining atoms by the generator is presented. The condition, though not being a necessary one, is shown to be almost the weakest one in the sense that it can hardly be improved.

Jinshan Zhang

2007-11-15T23:59:59.000Z

498

Novel schemes for the optical manipulation of atoms and molecules.  

E-Print Network (OSTI)

??The range of atoms which can be cooled by lasers is limited to those which have a closed two level structure. Several schemes have been… (more)

Bateman, James

2009-01-01T23:59:59.000Z

499

Optically generated gauge potentials and their effects in cold atoms.  

E-Print Network (OSTI)

??Recent theoretical studies show the possibility of generating optical gauge potentials in neutral atoms using laser beams carrying orbital angular momentum. This is interesting not… (more)

Song, Jianjun

2008-01-01T23:59:59.000Z

500

Scattering lengths for collisions of hydrogen and deuterium atoms  

E-Print Network (OSTI)

Chu,X. Jamieson,M.J. Dalgarno,A. Journal of Physics B: Atomic, Molecular and Optical Physics, Vol. 36 pp L415-L418

Chu, X.; Jamieson, M.J.