National Library of Energy BETA

Sample records for desroches jing ke

  1. ECE342 Communication jingli@ece.lehigh.edu

    E-Print Network [OSTI]

    Li, Tiffany Jing

    ECE342 Communication Theory jingli@ece.lehigh.edu Introduction - 1 ECE 342 Communication Theory Communication Theory jingli@ece.lehigh.edu Introduction - 2 Communication Systems vExample of Digital Communication Systems q Wireline telephone channels q Microwave radio q Fiber optic channels q Satellite

  2. Jing Jin Electric JJE | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View NewTexas: Energy ResourcesOrder atHills, Pennsylvania:Huayang Solar EnergyQingdaJing Jin

  3. PS10 Solar Power Tower Xi Jing, Fang

    E-Print Network [OSTI]

    Prevedouros, Panos D.

    area equivalent of 17 American Football Tower Solar receiver 4 vertical panels 18ft*39ft Steam turbine the solar energy to the grid in 2007 Operating cash flow 1.4 millions in 2007.Operating cash flow 1PS10 Solar Power Tower Xi Jing, Fang #12;Overview Magnitudes , Cost & TechnologiesMagnitudes , Cost

  4. Automotive Powertrain Control: A Survey Jeffrey A. Cook, Jing Sun

    E-Print Network [OSTI]

    Grizzle, Jessy W.

    Automotive Powertrain Control: A Survey Jeffrey A. Cook, Jing Sun Julia H. Buckland, Ilya V recent and historical publications on automotive powertrain control. Control- oriented models of gasoline, hybrid electric powertrains and automotive fuel cells. In each case, fundamental models are discussed

  5. Model-based Conformance Testing for Android Yiming Jing1

    E-Print Network [OSTI]

    Duchowski, Andrew T.

    Model-based Conformance Testing for Android Yiming Jing1 , Gail-Joon Ahn1 , and Hongxin Hu2 1- formance testing framework for mobile platforms, focused on Android platform. Our framework systematically studies on Android Inter-Component Communication module. 1 Introduction According to a recent report from

  6. TenniVis: Visualization for Tennis Match Analysis Tom Polk, Member, IEEE, Jing Yang, Yueqi Hu, and Ye Zhao

    E-Print Network [OSTI]

    Ras, Zbigniew W.

    TenniVis: Visualization for Tennis Match Analysis Tom Polk, Member, IEEE, Jing Yang, Yueqi Hu Polk, Jing Yang, and Yueqi Hu are with the University of North Carolina at Charlotte. E-mail: tepolk

  7. JingXin Technology Co Ltd | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View NewTexas: Energy ResourcesOrder atHills, Pennsylvania:Huayang Solar EnergyQingdaJing

  8. CEEG NanJing New Energy | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmentalBowerbank, Maine:Kansas: Energy Resources Jump to:EnergyCEEG NanJing New Energy Jump

  9. Uncheatable Grid Computing Wenliang Du, Jing Jia, Manish Mangal, and Mummoorthy Murugesan

    E-Print Network [OSTI]

    Du, Wenliang "Kevin"

    Department of Electrical Engineering and Computer Science Syracuse University, Syracuse, NY 13244-1240, USA computing visible. For instance, IBM's smallpox research [3] uses grid computing to find potential drugsUncheatable Grid Computing Wenliang Du, Jing Jia, Manish Mangal, and Mummoorthy Murugesan

  10. An Automatic Hierarchical Image Classification Scheme Jing Huang S Ravi Kumar y Ramin Zabih z

    E-Print Network [OSTI]

    Zabih, Ramin

    in such a process. Image Classification. One approach to this problem is to orga- nize the digital libraryAn Automatic Hierarchical Image Classification Scheme Jing Huang S Ravi Kumar y Ramin Zabih z Department of Computer Science Cornell University Ithaca, NY 14853. Abstract Organizing images into semantic

  11. A Protein Patent Query System Powered By Kleisli Jing Chen Limsoon Wong Louxin Zhang

    E-Print Network [OSTI]

    Wong, Limsoon

    A Protein Patent Query System Powered By Kleisli Jing Chen Limsoon Wong Louxin Zhang Bio effectively query protein patents. This system uses Kleisli to tie to­ gether the following sources to answer queries on protein patents that are considerably more demanding than simple free­text search: (1

  12. Style Variation in Cooking Recipes Jing Lin1 and Chris Mellish2 and Ehud Reiter3

    E-Print Network [OSTI]

    Reiter, Ehud

    Style Variation in Cooking Recipes Jing Lin1 and Chris Mellish2 and Ehud Reiter3 Abstract. Human. For example, in food recipes there are style variations between authors even with describing the same cooking actions and foods. This paper summarises style variations in food recipes written by different people. 1

  13. AUTOMOTIVE POWERTRAIN CONTROL A SURVEY Jeffrey A. Cook, Jing Sun, Julia H. Buckland, Ilya V. Kolmanovsky,

    E-Print Network [OSTI]

    Peng, Huei

    AUTOMOTIVE POWERTRAIN CONTROL A SURVEY Jeffrey A. Cook, Jing Sun, Julia H. Buckland, Ilya V, Michigan, 48109, U.S.A. (e-mail: jingsun@umich.edu). AUTOMOTIVE POWERTRAIN CONTROL A SURVEY Jeffrey A This paper surveys recent and historical publications on automotive powertrain control. Control

  14. Cooperation and Assortativity with Endogenous Partner Selection1 JING WANG, New York University

    E-Print Network [OSTI]

    Fiat, Amos

    Cooperation and Assortativity with Endogenous Partner Selection1 JING WANG, New York University York University, 44 West 4th Street, New York, NY 10012, USA; S. Suri and D. J. Watts, Yahoo! Research, 111 West 40th Street, 17th Floor, New York, NY 10018, U.S.A. Copyright is held by the author

  15. Practicality-Based Probabilistic Roadmaps Method Jing Yang, Patrick Dymond and Michael Jenkin

    E-Print Network [OSTI]

    Jenkin, Michael R. M.

    Practicality-Based Probabilistic Roadmaps Method Jing Yang, Patrick Dymond and Michael Jenkin: {jyang, jenkin, dymond}@cse.yorku.ca Abstract--Probabilistic roadmap methods (PRMs) are a commonly used roadmap can then be used to generate more practical paths. The approach is general and can be adapted

  16. Collaborative Sensing by Unmanned Aerial Vehicles W. T. Luke Teacy, Jing Nie,

    E-Print Network [OSTI]

    Martin, Ralph R.

    Collaborative Sensing by Unmanned Aerial Vehicles W. T. Luke Teacy, Jing Nie, Sally Mc.trigoni,stephen.cameron}@comlab.ox.ac.uk ABSTRACT In many military and civilian applications, Unmanned Aerial Vehicles (UAVs) provide, advances in airframe design and con- trol technology mean that using Unmanned Aerial Vehicles (UAVs

  17. Wireless Enhancements for Storage Area Networks David Griffith, Kotikalapudi Sriram, JingSi Gao, and Nada Golmie

    E-Print Network [OSTI]

    1 Wireless Enhancements for Storage Area Networks David Griffith, Kotikalapudi Sriram, JingSi Gao wireless links D. Griffith, K. Sriram, and N. Golmie are with the National Institute of Standards

  18. KE Scotland Conference Policy, Practice, Impact

    E-Print Network [OSTI]

    Greenaway, Alan

    KE Scotland Conference Policy, Practice, Impact 4th Annual Knowledge Exchange Conference FREE to Scotland's PhD students, Academic staff and KE Practitioners. Friday 5th October 2012 Edinburgh Conference

  19. Web-based Dynamic Delphi: a New Survey Instrument JingTao Yao Wei-Ning Liu

    E-Print Network [OSTI]

    Yao, JingTao

    Web-based Dynamic Delphi: a New Survey Instrument JingTao Yao Wei-Ning Liu Department of Computer of the conventional Delphi method and the dynamic Delphi instrument is conducted. It is suggested that a dynamic leaking issues. 1. INTRODUCTION The Delphi survey instrument is a way of collecting expert ideas

  20. Microscale pH regulation by splitting water Li-Jing Cheng and Hsueh-Chia Chang

    E-Print Network [OSTI]

    Chang, Hsueh-Chia

    or require microvalves to control the flow of different pH solutions.4,7,8 Electrolysis produces hydrogen://bmf.aip.org/about/rights_and_permissions #12;Microscale pH regulation by splitting water Li-Jing Chenga) and Hsueh-Chia Chang Advanced of additional acidic/basic solutions that dilute analyte concentrations. The method could provide a better

  1. Y-Shaped Polymer Brushes: Nanoscale Switchable Duangrut Julthongpiput, Yen-Hsi Lin, Jing Teng, Eugene R. Zubarev,* and

    E-Print Network [OSTI]

    Zubarev, Eugene

    Y-Shaped Polymer Brushes: Nanoscale Switchable Surfaces Duangrut Julthongpiput, Yen-Hsi Lin, Jing incompatible polymer chains (arms) attached to a single focal point capable of chemical grafting dissimilar (hydrophobic and hydrophilic) polymer arms in such Y-shaped molecules lead to the formation

  2. Time Delays in Two-Photon Ionization Jing Su, Hongcheng Ni, Agnieszka Jaro-Becker, and Andreas Becker

    E-Print Network [OSTI]

    Becker, Andreas

    Time Delays in Two-Photon Ionization Jing Su, Hongcheng Ni, Agnieszka Jaro-Becker, and Andreas results of ab initio numerical simulations of time delays in two-photon ionization of the helium atom contributions, namely, a time delay acquired during the absorption of the two photons from the extreme

  3. Optimal pump-dump control: Linearization and symmetry relation YiJing Yan, Jianshu Cao,a)

    E-Print Network [OSTI]

    Cao, Jianshu

    Optimal pump-dump control: Linearization and symmetry relation YiJing Yan, Jianshu Cao of phase-unlocked pump-dump fields in the control of pure state molecular systems in the weak response regime. The associated eigenvalues are further correlated to the yields of pump-dump control, thus

  4. Inferring Air Pollution by Sniffing Social Media Shike Mei, Han Li, Jing Fan, Xiaojin Zhu and Charles R. Dyer

    E-Print Network [OSTI]

    Dyer, Charles R.

    Inferring Air Pollution by Sniffing Social Media Shike Mei, Han Li, Jing Fan, Xiaojin Zhu issue of air pollution in China and elsewhere in the world is to monitor it. While more physical prediction performance of our approach. I. INTRODUCTION Air pollution is a significant issue in China

  5. USER-MANAGED END-TO-END LIGHTPATH PROVISIONING OVER Jing Wu, Scott Campbell, J. Michel Savoie, Hanxi Zhang

    E-Print Network [OSTI]

    von Bochmann, Gregor

    USER-MANAGED END-TO-END LIGHTPATH PROVISIONING OVER CA*NET 4 Jing Wu, Scott Campbell, J. Michel dark fibre networks and long-haul wavelength networks. Schools, hospitals and government departments are acquiring their own metro dark fibres. They participate in so-called "condominium" dark fibre networks

  6. Inferring Air Pollution by Sniffing Social Media Shike Mei, Han Li, Jing Fan, Xiaojin Zhu and Charles R. Dyer

    E-Print Network [OSTI]

    Zhu, Xiaojin "Jerry"

    Inferring Air Pollution by Sniffing Social Media Shike Mei, Han Li, Jing Fan, Xiaojin Zhu issue of air pollution in China and elsewhere in the world is to monitor it. While more physical monitoring stations are built, current coverage is limited to large cities with most other places under

  7. On the 17-keV neutrino

    SciTech Connect (OSTI)

    Hime, A.

    1993-04-01

    A brief review on the status of the 17-keV neutrino is presented. Several different experiments found spectral distortions which were consistently interpreted as evidence for a heavy neutrino admixture in {beta} decay. Recent experiments, however, rule out the existence of a 17-keV neutrino as well as escaping criticisms of earlier null results. Moreover, the majority of positive results have been reinterpreted in terms of instrumental effects, despite the need for a different explanation in each case. Anomalies persist in the low energy region of the tritium spectrum which deserve further investigation.

  8. On the 17-keV neutrino

    SciTech Connect (OSTI)

    Hime, A.

    1993-04-01

    A brief review on the status of the 17-keV neutrino is presented. Several different experiments found spectral distortions which were consistently interpreted as evidence for a heavy neutrino admixture in [beta] decay. Recent experiments, however, rule out the existence of a 17-keV neutrino as well as escaping criticisms of earlier null results. Moreover, the majority of positive results have been reinterpreted in terms of instrumental effects, despite the need for a different explanation in each case. Anomalies persist in the low energy region of the tritium spectrum which deserve further investigation.

  9. A=11He (2012KE01)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach HomeA Better Anode Design to Improve Lithium-Ion Batteries PrintA279AJ01)90AJ01)0AJ01)5AJ01)2012KE01)

  10. A=11Li (2012KE01)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach HomeA Better Anode Design to Improve Lithium-Ion Batteries80AJ01) (See the Isobar Diagram for2012KE01)

  11. A=11Ne (2012KE01)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach HomeA Better Anode Design to Improve Lithium-Ion Batteries80AJ01) (See the Isobar68AJ02)2012KE01) (Not

  12. The CitiSense Air Quality Monitoring Mobile Sensor Node Piero Zappi, Elizabeth Bales, Jing Hong Park, William Griswold and Tajana Simuni Rosing

    E-Print Network [OSTI]

    Simunic, Tajana

    conditions than the national ambient air quality standard [1]. Current air pollutant measurement networks. For example, The San Diego Air Pollution Control District (SDAPCD) maintains only five air pollutant samplingThe CitiSense Air Quality Monitoring Mobile Sensor Node Piero Zappi, Elizabeth Bales, Jing Hong

  13. Cloudy with a Chance of Breach: Forecasting Cyber Security Incidents Yang Liu1, Armin Sarabi1, Jing Zhang1, Parinaz Naghizadeh1

    E-Print Network [OSTI]

    Liu, Mingyan

    Cloudy with a Chance of Breach: Forecasting Cyber Security Incidents Yang Liu1, Armin Sarabi1, Jing In this study we characterize the extent to which cyber security incidents, such as those referenced by Verizon to understand the extent to which one can forecast if an organization may suffer a cyber security incident

  14. STEMLESS WINE-GLASS-MODE DISK MICROMECHANICAL RESONATORS Mohamed A. Abdelmoneum, Jing Wang, Mustafa U. Demirci, and Clark T.-C. Nguyen

    E-Print Network [OSTI]

    Nguyen, Clark T.-C.

    STEMLESS WINE-GLASS-MODE DISK MICROMECHANICAL RESONATORS Mohamed A. Abdelmoneum, Jing Wang, Mustafa Polysilicon wine-glass mode micromechanical disk reso- nators using a stemless, non-intrusive suspension for this wine-glass mode resonator is more than 10X higher than measured on radial contour mode coun- terparts

  15. Secondary ion emission under keV carbon cluster bombardment 

    E-Print Network [OSTI]

    Locklear, Jay Edward

    2006-10-30

    Secondary ion mass spectrometry (SIMS) is a surface analysis technique capable of providing isotopic and molecular information. SIMS uses keV projectiles to impinge upon a sample resulting in secondary ion emission from ...

  16. Ion Implantation 10~100 keV/cluster

    E-Print Network [OSTI]

    Maruyama, Shigeo

    FractionofactivatedCO2,Fa(%) NC out (CO2) Fa NC out (Ar) Fig. 3 Fraction of activated CO2 molecules Fa, and numberIon Implantation 1,000 CO2 100 keV µm (1,2) AFM CO2 Ar CO2 4 Ar (2) 10~100 keV/cluster Ar CO2 Langevin 300 K Ar961 (CO2)960 40 K CO2 Inter- CO2 L-J Verlet 2 ps 0.2 fs 0.5 fs 122Å 182Å (a) 0.3 ps (b) 0

  17. High resolution 17 keV to 75 keV backlighters for High Energy Density experiments

    SciTech Connect (OSTI)

    Park, H; Maddox, B R; Giraldez, E; Hatchett, S P; Hudson, L; Izumi, N; Key, M H; Pape, S L; MacKinnon, A J; MacPhee, A G; Patel, P K; Phillips, T W; Remington, B A; Seely, J F; Tommasini, R; Town, R; Workman, J

    2008-02-25

    We have developed 17 keV to 75 keV 1-dimensional and 2-dimensional high-resolution (< 10 {micro}m) radiography using high-intensity short pulse lasers. High energy K-{alpha} sources are created by fluorescence from hot electrons interacting in the target material after irradiation by lasers with intensity I{sub L} > 10{sup 17} W/cm{sup 2}. We have achieved high resolution point projection 1-dimensional and 2-dimensional radiography using micro-foil and micro-wire targets attached to low-Z substrate materials. The micro-wire size was 10 {micro}m x 10 {micro}m x 300 {micro}m on a 300 {micro}m x 300 {micro}m x 5 {micro}m CH substrate. The radiography performance was demonstrated using the Titan laser at LLNL. We observed that the resolution is dominated by the micro-wire target size and there is very little degradation from the plasma plume, implying that the high energy x-ray photons are generated mostly within the micro-wire volume. We also observe that there are enough K{alpha} photons created with a 300 J, 1-{omega}, 40 ps pulse laser from these small volume targets, and that the signal-to-noise ratio is sufficiently high, for single shot radiography experiments. This unique technique will be used on future high energy density (HED) experiments at the new Omega-EP, ZR and NIF facilities.

  18. Origin of The 871-keV Gamma Ray and the "Oxide" Attribute

    SciTech Connect (OSTI)

    Peurrung, Anthony J.; Arthur, Richard J.; Geelhood, Bruce D.; Scheele, Randall D.; Elovich, Robert J.; Pratt, Sharon L.

    2000-03-22

    This brief paper concludes our study of the origin of the 871-keV observed for many plutonium oxide samples.

  19. 100-KE REACTOR CORE REMOVAL PROJECT ALTERNATIVE ANALYSIS WORKSHOP REPORT

    SciTech Connect (OSTI)

    HARRINGTON RA

    2010-01-15

    On December 15-16, 2009, a 100-KE Reactor Core Removal Project Alternative Analysis Workshop was conducted at the Washington State University Consolidated Information Center, Room 214. Colburn Kennedy, Project Director, CH2M HILL Plateau Remediation Company (CHPRC) requested the workshop and Richard Harrington provided facilitation. The purpose of the session was to select the preferred Bio Shield Alternative, for integration with the Thermal Shield and Core Removal and develop the path forward to proceed with project delivery. Prior to this workshop, the S.A. Robotics (SAR) Obstruction Removal Alternatives Analysis (565-DLV-062) report was issued, for use prior to and throughout the session, to all the team members. The multidisciplinary team consisted ofrepresentatives from 100-KE Project Management, Engineering, Radcon, Nuclear Safety, Fire Protection, Crane/Rigging, SAR Project Engineering, the Department of Energy Richland Field Office, Environmental Protection Agency, Washington State Department of Ecology, Defense Nuclear Facility Safety Board, and Deactivation and Decommission subject matter experts from corporate CH2M HILL and Lucas. Appendix D contains the workshop agenda, guidelines and expectations, opening remarks, and attendance roster going into followed throughout the workshop. The team was successful in selecting the preferred alternative and developing an eight-point path forward action plan to proceed with conceptual design. Conventional Demolition was selected as the preferred alternative over two other alternatives: Diamond Wire with Options, and Harmonic Delamination with Conventional Demolition. The teams preferred alternative aligned with the SAR Obstruction Removal Alternative Analysis report conclusion. However, the team identified several Path Forward actions, in Appendix A, which upon completion will solidify and potentially enhance the Conventional Demolition alternative with multiple options and approaches to achieve project delivery. In brief, the Path Forward was developed to reconsider potential open air demolition areas; characterize to determine if any zircaloy exists, evaluate existing concrete data to determine additional characterization needs, size the new building to accommodate human machine interface and tooling, consider bucket thumb and use ofshape-charges in design, and finally to utilize complex-wide and industry explosive demolition lessons learned in the design approach. Appendix B documents these results from the team's use ofValue Engineering process tools entitled Weighted Analysis Alternative Matrix, Matrix Conclusions, Evaluation Criteria, and Alternative Advantages and Disadvantages. These results were further supported with the team's validation of parking-lot information sheets: memories (potential ideas to consider), issues/concerns, and assumptions, contained in Appendix C. Appendix C also includes the recorded workshop flipchart notes taken from the SAR Alternatives and Project Overview presentations. The SAR workshop presentations, including a 3-D graphic illustration demonstration video have been retained in the CHPRC project file, and were not included in this report due to size limitations. The workshop concluded with a round robin close-out where each member was engaged for any last minute items and meeting utility. In summary, the team felt the session was value added and looked forward to proceeding with the recommended actions and conceptual design.

  20. On energetic electrons (>38 keV) in the central plasma sheet: Data analysis and modeling

    E-Print Network [OSTI]

    Li, Xinlin

    On energetic electrons (>38 keV) in the central plasma sheet: Data analysis and modeling Bingxian] The spatial distribution of >38 keV electron fluxes in the central plasma sheet (CPS) and the statistical relationship between the CPS electron fluxes and the upstream solar wind and interplanetary magnetic field (IMF

  1. Checking Potassium origin of new emission line at 3.5 keV with K XIX line complex at 3.7 keV

    E-Print Network [OSTI]

    Dmytro Iakubovskyi

    2015-07-17

    Whether the new line at ~3.5 keV, recently detected in different samples of galaxy clusters, Andromeda galaxy and central part of our Galaxy, is due to Potassium emission lines, is now unclear. By using the latest astrophysical atomic emission line database AtomDB v. 3.0.2, we show that the most prospective method to directly check its Potassium origin will be the study of K XIX emission line complex at ~3.7 keV with future X-ray imaging spectrometers such as Soft X-ray spectometer on-board Astro-H mission or microcalorimeter on-board Micro-X sounding rocket experiment. To further reduce the remaining (factor ~3-5) uncertainty of the 3.7/3.5 keV ratio one should perform more precise modeling including removal of significant spatial inhomogeneities, detailed treatment of background components, and further extension of the modeled energy range.

  2. Checking Potassium origin of new emission line at 3.5 keV with K XIX line complex at 3.7 keV

    E-Print Network [OSTI]

    Iakubovskyi, Dmytro

    2015-01-01

    Whether the new line at ~3.5 keV, recently detected in different samples of galaxy clusters, Andromeda galaxy and central part of our Galaxy, is due to Potassium emission lines, is now unclear. By using the latest astrophysical atomic emission line database AtomDB v. 3.0.2, we show that the most prospective method to directly check its Potassium origin will be the study of K XIX emission line complex at ~3.7 keV with future X-ray imaging spectrometers such as Soft X-ray spectometer on-board Astro-H mission or microcalorimeter on-board Micro-X sounding rocket experiment. To further reduce the remaining (factor ~3-5) uncertainty of the 3.7/3.5 keV ratio one should perform more precise modeling including removal of significant spatial inhomogeneities, detailed treatment of background components, and further extension of the modeled energy range.

  3. PHYTOPLANKTON DYNAMICS IN OCEANIC WATERS OFF KE-AHOLE POINT, Hawaii

    E-Print Network [OSTI]

    Bienfang, P.K.

    2010-01-01

    in the water column off Ke-ahole Point, Hawaii. ReportDepartment, University of Hawaii. 15 pp. Bienfang P.in oligotrophic waters off Hawaii. Marine Biology. Bienfang

  4. UCSB Lab-specific Chemical Hygiene Plan KE, Rev. 8/18/14

    E-Print Network [OSTI]

    Bigelow, Stephen

    UCSB Lab-specific Chemical Hygiene Plan KE, Rev. 8/18/14 Lab-Specific Chemical Hygiene Plan (CHP) ___________________________________________________________ 12 Laboratory Locations (Building /Rooms) ________________________________________________ 12 _________________________________________ 13 Location of MRL Building Emergency Assembly Point (EAP) _______________________________ 13

  5. Efficient laser-induced 6 - 8 keV x-ray production from iron...

    Office of Scientific and Technical Information (OSTI)

    Journal Article: Efficient laser-induced 6 - 8 keV x-ray production from iron oxide aerogel and foil-lined cavity targets Citation Details In-Document Search Title: Efficient...

  6. Titanium and germanium lined hohlraums and halfraums as multi-keV x-ray radiators

    SciTech Connect (OSTI)

    Girard, F.; Primout, M.; Villette, B.; Stemmler, Ph.; Jacquet, L.; Babonneau, D. [CEA, DAM, DIF, F-91297 Arpajon (France); Fournier, K. B. [Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94550 (United States)

    2009-05-15

    As multi-keV x-ray radiators, hohlraums and halfraums with inner walls coated with metallic materials (called liner) have been tested for the first time with laser as the energy drive. For titanium, conversion efficiencies (CEs) are up to {approx}14% for emission into 4{pi}, integrating between 4.6 and 6.5 keV when a large diameter hohlraum is used. Germanium CE is {approx}0.8% into 4{pi} between 9 and 13 keV. The highest CEs have been obtained with a 1 ns squared pulse and phase plates giving laser absorption near 99%. These high CEs are due to long-lasting, good plasma conditions for multi-keV x-ray production maintained by plasma confinement inside the plastic cylinder and plasma collision leading to a burst of x rays at a time that depends on target size. As photon emitters at 4.7 keV, titanium-lined hohlraums are the most efficient solid targets and data are close to CEs for gas targets, which are considered as the upper limit for x-ray yields since their low density allows good laser absorption and low kinetics losses. As 10.3 keV x-ray emitters, exploded germanium foils give best results one order of magnitude more efficient than thick targets; doped aerogels and lined hohlraums give similar yields, about three times lower than those from exploded foils.

  7. New, high statistics measurement of the K+ -> pi0 e+ nu (Ke3) branching ratio

    E-Print Network [OSTI]

    Sher, A E; Atoyan, G S; Bassalleck, B; Bergman, D R; Cheung, N; Dhawan, S; Do, H; Egger, J; Eilerts, S W; Fischer, H; Herold, W D; Issakov, V V; Kaspar, H; Kraus, D E; Lazarus, D M; Lichard, P; Lowe, J; Lozano-Bahilo, J; Ma, H; Majid, W A; Pislak, S; Poblaguev, A A; Rehak, P; Sher, A E; Thompson, J A; Truöl, P; Zeller, M E; Sher, Aleksey

    2003-01-01

    E865 at the Brookhaven National Laboratory AGS collected about 70,000 K+(e3) events with the purpose of measuring the relative K+(e3) branching ratio. The pi0 in all the decays was detected using the e+e- pair from pi0 -> e+e-gamma decay and no photons were required. Using the Particle Data Group branching ratios for the normalization decays we obtain BR(K+(e3(gamma))=(5.13+/-0.02(stat)+/-0.09(sys)+/-0.04(norm))%, where $K+(e3(gamma)) includes the effect of virtual and real photons. This result is 2.3 sigma higher than the current Particle Data Group value. The implications of this result for the $V_{us}$ element of the CKM matrix, and the matrix's unitarity are discussed.

  8. BEAM TESTS OF THE 10 KeV INJECTOR FOR THE UNIVERSITY OF MARYLAND ELECTRON RING (UMER)

    E-Print Network [OSTI]

    Valfells, Ágúst

    BEAM TESTS OF THE 10 KeV INJECTOR FOR THE UNIVERSITY OF MARYLAND ELECTRON RING (UMER) S. Bernal , H envelope matching experiments with a 10 keV, 100 mA, 100 ns electron beam. These values represent experiments with a 4 keV, 17 mA, 5 µs electron beam appear in Ref. [4]. 2 BEAM LINE AND DIAGNOSTICS While

  9. Sub-5 keV electron-beam lithography in hydrogen silsesquioxane resist

    E-Print Network [OSTI]

    Manfrinato, Vitor R.

    We fabricated 9–30 nm half-pitch nested Ls and 13–15 nm half-pitch dot arrays, using 2 keV electron-beam lithography with hydrogen silsesquioxane (HSQ) as the resist. All structures with 15 nm half-pitch and above were ...

  10. The KeY Platform for Verification and Analysis of Java Programs

    E-Print Network [OSTI]

    Mostowski, Wojciech

    pure functional verification. We use the current release of the KeY system as an example to explain and prove this claim. 1 Overview Motivation. Over the last decades the reach and power of verification of real world systems. The basic technologies of deductive program verification have matured. State

  11. Language Support for Synchronous Parallel Critical Sections Christoph W. Ke ler Helmut Seidl

    E-Print Network [OSTI]

    Kessler, Christoph

    and e - cient programs for synchronous shared memory MIMD machines (also known as PRAM's). PRAMLanguage Support for Synchronous Parallel Critical Sections Christoph W. Ke ler Helmut Seidl@psi.uni-trier.de Abstract We introduce a new parallel programming paradigm, namely synchronous parallel critical sections

  12. Fusion for Deep Space Propulsion K.E. Miller and John Slough, Redmond Plasma Physics Laboratory,

    E-Print Network [OSTI]

    Washington at Seattle, University of

    Mirror Coil Direct Energy Converter Magnetic Confinement Coils FRC Plasma Exhaust: Sp. Impulse 106Experiment Fusion for Deep Space Propulsion K.E. Miller and John Slough, Redmond Plasma Physics Laboratory, University of Washington #12;FRC as Power Source and Ion Engine for High Energy Space Missions

  13. Multi-keV x-ray sources from metal-lined cylindrical hohlraums

    SciTech Connect (OSTI)

    Jacquet, L.; Girard, F.; Primout, M.; Villette, B.; Stemmler, Ph. [CEA, DAM, DIF, F-91297 Arpajon (France)

    2012-08-15

    As multi-keV x-ray sources, plastic hohlraums with inner walls coated with titanium, copper, and germanium have been fired on Omega in September 2009. For all the targets, the measured and calculated multi-keV x-ray power time histories are in a good qualitative agreement. In the same irradiation conditions, measured multi-keV x-ray conversion rates are {approx}6%-8% for titanium, {approx}2% for copper, and {approx}0.5% for germanium. For titanium and copper hohlraums, the measured conversion rates are about two times higher than those given by hydroradiative computations. Conversely, for the germanium hohlraum, a rather good agreement is found between measured and computed conversion rates. To explain these findings, multi-keV integrated emissivities calculated with RADIOM [M. Busquet, Phys. Fluids 85, 4191 (1993)], the nonlocal-thermal-equilibrium atomic physics model used in our computations, have been compared to emissivities obtained from different other models. These comparisons provide an attractive way to explain the discrepancies between experimental and calculated quantitative results.

  14. Parallax Photography: Creating 3D Cinematic Effects from Stills Ke Colin Zheng

    E-Print Network [OSTI]

    O'Brien, James F.

    Parallax Photography: Creating 3D Cinematic Effects from Stills Ke Colin Zheng University field with extracted depth information into a cinematic effect with sim- ulated, smooth camera motion that exhibits a sense of 3D parallax. We develop a taxonomy of the cinematic conventions of these ef- fects

  15. Layout modification for library cell Alt-PSM composability Ke Cao, Jiang Hu, Mosong Cheng

    E-Print Network [OSTI]

    Hu, Jiang

    Layout modification for library cell Alt-PSM composability Ke Cao, Jiang Hu, Mosong Cheng Dept-wavelength lithography, light field Alt-PSM (Alternating Phase Shifting Mask) is an essential technology for poly layer printability. In a standard cell based design, the problem of obtaining Alt-PSM compliance for an individual

  16. Designing fecal pellet surveys for snowshoe hares K.E. Hodges *, L.S. Mills

    E-Print Network [OSTI]

    Mills, L. Scott

    Designing fecal pellet surveys for snowshoe hares K.E. Hodges *, L.S. Mills Wildlife Biology, 2003), some popular indices, like counts of fecal pellets, have been used to answer basic ecological pellets to examine long-term population dynamics at individual sites (Malloy, 2000; Krebs et al., 2001

  17. 5 (Upgradable to 25 keV) Free Electron Laser (FEL) Facility

    E-Print Network [OSTI]

    York, R C

    2013-01-01

    A Free Electron Laser (FEL) facility utilizing a recirculated Superconducting Radio Frequency (SRF) linear accelerator (linac) provides the opportunity to achieve about five times greater photon energy than an unrecirculated linac of similar cost. > A 4 GeV SRF, cw, electron linac can be used to drive an FEL producing 5 keV photons. The SLAC National Accelerator Laboratory, a Department of Energy (DOE) Basic Energy Sciences (BES) laboratory, proposes to utilize a 4 GeV unrecirculated, SRF, linac in a segment of existing linac tunnel. > For an initial investment similar to that of the proposed SLAC strategy, a recirculated SRF linac system could deliver the 4 GeV electrons for photon energies of 5 keV and provide an upgrade path to photon energies of 25 keV. > Further support amounting to about a third of the initial investment would provide upgrade funds for additional SRF linac and cryogenic capacity sufficient to provide electron energies appropriate for 25 keV photons matching the European XFEL.

  18. Phonons in two-dimensional soft colloidal crystals Ke Chen,1, 2

    E-Print Network [OSTI]

    Schindler, Michael

    Phonons in two-dimensional soft colloidal crystals Ke Chen,1, 2 Tim Still,1 Samuel Schoenholz,1 and polycrystalline monolayer colloidal crystals composed of thermosensitive microgel particles are measured using-frequency modes in polycrystalline two-dimensional colloidal crystals are identified and demonstrated to correlate

  19. Neutron Total Cross Sections of {sup 235}U From Transmission Measurements in the Energy Range 2 keV to 300 keV and Statistical Model Analysis of the Data

    SciTech Connect (OSTI)

    Derrien, H.; Harvey, J.A.; Larson, N.M.; Leal, L.C.; Wright, R.Q.

    2000-05-01

    The average {sup 235}U neutron total cross sections were obtained in the energy range 2 keV to 330 keV from high-resolution transmission measurements of a 0.033 atom/b sample.1 The experimental data were corrected for the contribution of isotope impurities and for resonance self-shielding effects in the sample. The results are in very good agreement with the experimental data of Poenitz et al.4 in the energy range 40 keV to 330 keV and are the only available accurate experimental data in the energy range 2 keV to 40 keV. ENDF/B-VI evaluated data are 1.7% larger. The SAMMY/FITACS code 2 was used for a statistical model analysis of the total cross section, selected fission cross sections and data in the energy range 2 keV to 200 keV. SAMMY/FITACS is an extended version of SAMMY which allows consistent analysis of the experimental data in the resolved and unresolved resonance region. The Reich-Moore resonance parameters were obtained 3 from a SAMMY Bayesian fits of high resolution experimental neutron transmission and partial cross section data below 2.25 keV, and the corresponding average parameters and covariance data were used in the present work as input for the statistical model analysis of the high energy range of the experimental data. The result of the analysis shows that the average resonance parameters obtained from the analysis of the unresolved resonance region are consistent with those obtained in the resolved energy region. Another important result is that ENDF/B-VI capture cross section could be too small by more than 10% in the energy range 10 keV to 200 keV.

  20. Mr. John KieJing

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shines light on77 PAGEMissionStressMove data

  1. Measurements of the neutron-proton and neutron-carbon total cross section from 150 to 800 keV

    E-Print Network [OSTI]

    Daub, B. H.

    There have been very few measurements of the total cross section for np scattering below 500 keV. To differentiate among NN potential models, improved cross section data between 20 and 600 keV are required. We measured the ...

  2. Search for 14.4 keV solar axions from M1 transition of Fe-57...

    Office of Scientific and Technical Information (OSTI)

    Search for 14.4 keV solar axions from M1 transition of Fe-57 with CUORE crystals Citation Details In-Document Search Title: Search for 14.4 keV solar axions from M1 transition of...

  3. Enhanced room temperature oxidation in silicon and porous silicon under 10 keV x-ray irradiation

    E-Print Network [OSTI]

    Weiss, Sharon

    Enhanced room temperature oxidation in silicon and porous silicon under 10 keV x-ray irradiation been suggested that gamma irradiation accelerates oxidation of porous silicon.5 Irradiation silicon samples that occurs over three decades of 10 keV x-ray irradiation. II. SAMPLE PREPARATION Silicon

  4. Efficient laser-induced 6-8 keV x-ray production from iron oxide...

    Office of Scientific and Technical Information (OSTI)

    Efficient laser-induced 6-8 keV x-ray production from iron oxide aerogel and foil-lined cavity targets Citation Details In-Document Search Title: Efficient laser-induced 6-8 keV...

  5. The 2-79 keV X-ray Spectrum of the Circinus Galaxy with NuSTAR...

    Office of Scientific and Technical Information (OSTI)

    The 2-79 keV X-ray Spectrum of the Circinus Galaxy with NuSTAR, XMM-Newton and Chandra: a Fully Compton-Thick AGN Citation Details In-Document Search Title: The 2-79 keV X-ray...

  6. Charge fraction measurements for 2.4-35 keV Arq+ (q=2-13) projectiles

    E-Print Network [OSTI]

    Charge fraction measurements for 2.4-35 keV Arq+ (q=2-13) projectiles backscattered from Au(110) with incident energies in the range 2.4-35 keV, that have been 120 degrees backscattered from Au(110) in quasi

  7. Production of Sterile Neutrino Dark Matter and the 3.5 keV line

    E-Print Network [OSTI]

    Alexander Merle; Aurel Schneider

    2015-02-11

    The recent observation of an X-ray line at an energy of 3.5 keV mainly from galaxy clusters has initiated a discussion about whether we may have seen a possible dark matter signal. If confirmed, this signal could stem from a decaying sterile neutrino of a mass of 7.1 keV. Such a particle could make up all the dark matter, but it is not clear how it was produced in the early Universe. In this letter we show that it is possible to discriminate between different production mechanisms with present-day astronomical data. The most stringent constraint comes from the Lyman-{\\alpha} forest and seems to disfavor all but one of the main production mechanisms proposed in the literature, which is the production via decay of heavy scalar singlets. Pinning down the production mechanism will help to decide whether the X-ray signal indeed comprises an indirect detection of dark matter.

  8. Atomic ionization by keV-scale pseudoscalar dark-matter particles

    SciTech Connect (OSTI)

    Dzuba, V. A.; Flambaum, V. V.; Pospelov, M.

    2010-05-15

    Using the relativistic Hartree-Fock approximation, we calculate the rates of atomic ionization by absorption of pseudoscalar particles in the mass range from 10 to {approx}50 keV. We present numerical results for atoms relevant for the direct dark-matter searches (e.g. Ar, Ge, I and Xe), as well as the analytical formula which fits numerical calculations with few per cent accuracy and may be used for multielectron atoms, molecules and condensed matter systems.

  9. Assessment of the KE Basin Sand Filter Inventory In Support of Hazard Categorization

    SciTech Connect (OSTI)

    Ross, Steven B.; Young, Jonathan

    2005-09-28

    In 1978, the water cleaning system for the KE Basin was upgraded by adding a sand filter and ion exchange columns. Basin water containing finely divided solids is collected by three surface skimmers and pumped to the sand filter. Filtrate from the sand filter is further treated in the ion exchange modules. The suspended solids accumulate in the sand until the pressure drop across the filter reaches established operating limits, at which time the sand filter is backwashed. The backwash is collected in the NLOP, where the solids are allowed to settle as sludge. Figure 2-1 shows a basic piping and instrumentation diagram depicting the relationship among the basin skimmers, sand filter, and NLOP. During the course of deactivation and decommissioning (D&D) of the K-Basins, the sand filter and its media will need to be dispositioned. The isotopic distribution of the sludge in the sand filter has been estimated in KE Basin Sand Filter Monolith DQO (KBC-24705). This document estimates the sand filter contribution to the KE hazard categorization using the data from the DQO.

  10. Steady State Sputtering Yields and Surface Compositions of Depleted Uranium and Uranium Carbide bombarded by 30 keV Gallium or 16 keV Cesium Ions.

    SciTech Connect (OSTI)

    Siekhaus, W. J.; Teslich, N. E.; Weber, P. K.

    2014-10-23

    Depleted uranium that included carbide inclusions was sputtered with 30-keV gallium ions or 16-kev cesium ions to depths much greater than the ions’ range, i.e. using steady-state sputtering. The recession of both the uranium’s and uranium carbide’s surfaces and the ion corresponding fluences were used to determine the steady-state target sputtering yields of both uranium and uranium carbide, i.e. 6.3 atoms of uranium and 2.4 units of uranium carbide eroded per gallium ion, and 9.9 uranium atoms and 3.65 units of uranium carbide eroded by cesium ions. The steady state surface composition resulting from the simultaneous gallium or cesium implantation and sputter-erosion of uranium and uranium carbide were calculated to be U??Ga??, (UC)??Ga?? and U??Cs?, (UC)??Cs??, respectively.

  11. The Reuven Ramaty High Energy Solar Spectroscopic Imager observation of the 1809 keV line from Galactic 26Al

    E-Print Network [OSTI]

    David M. Smith

    2003-04-28

    Observations of the central radian of the Galaxy by the Reuven Ramaty High Energy Solar Spectroscopy Imager (RHESSI) have yielded a high-resolution measurement of the 1809 keV line from 26Al, detected at 11 sigma significance in nine months of data. The RHESSI result for the width of the cosmic line is 2.03 (+0.78, -1.21) keV FWHM. The best fit line width of 5.4 keV FWHM reported by Naya et al. (1996) using the Gamma-Ray Imaging Spectrometer (GRIS) balloon instrument is rejected with high confidence.

  12. Search for 14.4 keV solar axions from M1 transition of Fe-57 with CUORE crystals

    E-Print Network [OSTI]

    Alessandria, F.

    2014-01-01

    to JCAP Search for 14.4 keV solar axions from M1 transitionfor useful discussion about solar core 57 Fe content.excitation of 57 Fe in the solar core. The isotope 57 Fe is

  13. Direct neutron capture of 48Ca at kT = 52 keV

    E-Print Network [OSTI]

    P. Mohr; H. Oberhummer; H. Beer; W. Rochow; V. Koelle; G. Staudt; P. V. Sedyshev; Yu. P. Popov

    1997-06-06

    The neutron capture cross section of 48Ca was measured relative to the known gold cross section at kT = 52 keV using the fast cyclic activation technique. The experiment was performed at the Van-de-Graaff accelerator, Universitaet Tuebingen. The new experimental result is in good agreement with a calculation using the direct capture model. The 1/v behaviour of the capture cross section at thermonuclear energies is confirmed, and the adopted reaction rate which is based on several previous experimental investigations remains unchanged.

  14. No evidence of the 17-keV neutrino in the decay of [sup 71]Ge

    SciTech Connect (OSTI)

    DiGregorio, D.E.; Gil, S.; Huck, H.; Batista, E.R.; Ferrero, A.M.J.; Gattone, A.O. (Departamento de Fisica, TANDAR, Comision Nacional de Energia Atomica, Avenida del Libertador 8250, 1429 Buenos Aires (Argentina))

    1993-06-01

    We have measured the internal bremsstrahlung spectrum of the electron capture decay of [sup 71]Ge in search for a possible mass component of the emitted neutrino. The main relevance of this experiment is given by the collected statistics which is 20 times larger than in a previously published work studying the same decay. Analyses of the data exclude the presence of a massive component of 17.2[sub [minus]1.1][sup +1.3] keV and (1.6[plus minus]0.7)% mixing fraction claimed by Zlimen [ital et] [ital al]. for this same nucleus, at the 99.0% confidence level.

  15. Application for Approval of Modification for the 105-KE Basin Encapsulation Activity

    SciTech Connect (OSTI)

    Not Available

    1993-03-01

    This application is being submitted to US EPA pursuant to Title 40, Code of Federal Regulations, Part 61.07, amended. The encapsulation activity will consist of the activities necessary to complete encapsulation of the fuel elements and sludge in 105-KE basin, a storage basin for irradiated N Reactor fuel in Hanford 100-K Area; it currently stores 1,150 MTU of N Reactor irradiated fuel elements transferred to the basin from 1975 through 1989. The application presents the chemical and physical processes relating to the encapsulation activity, source term, expected annual emissions, radionuclide control and monitoring equipment, and projected dose to the maximally exposed individual.

  16. Production of a keV X-Ray Beam from Synchrotron Radiation in Relativistic Laser-Plasma Interaction

    E-Print Network [OSTI]

    Umstadter, Donald

    Production of a keV X-Ray Beam from Synchrotron Radiation in Relativistic Laser-Plasma Interaction-Heine-Universitaet, Duesseldorf, 40225 Duesseldorf, Germany. 4 De´partement de Physique The´orique et Applique´e, CEA/DAM Ile- de of synchrotron radiation, which has keV energy and lies within a narrow (50 mrad) cone angle. DOI: 10.1103/Phys

  17. keV Warm Dark Matter via the Supersymmetric Higgs Portal

    E-Print Network [OSTI]

    John McDonald; Narendra Sahu

    2009-05-14

    Warm dark matter (WDM) may resolve the possible conflict between observed galaxy halos and the halos produced in cold dark matter (CDM) simulations. Here we present an extension of MSSM to include WDM by adding a gauge singlet fermion, \\bar{\\chi}, with a portal-like coupling to the MSSM Higgs doublets. This model has the property that the dark matter is {\\it necessarily warm}. In the case where M_{\\bar{\\chi}} is mainly due to electroweak symmetry breaking, the \\bar{\\chi} mass is completely determined by its relic density and the reheating temperature, T_R. For 10^2 GeV < T_{R} < 10^{5} GeV$, the range allowed by \\bar{chi} production via thermal Higgs annihilation, the \\bar{\\chi} mass is in the range 0.3-4 keV, precisely the range required for WDM. The primordial phase-space density, Q, can directly account for that observed in dwarf spheroidal galaxies, Q \\approx 5 x 10^{6}(eV/cm^3)/(km/s)^3,, when the reheating temperature is in the range T_R \\approx 10-100 TeV, in which case M_{\\bar{\\chi}} \\approx 0.45 keV. The free-streaming length is in the range 0.3-4 Mpc, which can be small enough to alleviate the problems of overproduction of galaxy substructure and low angular momentum of CDM simulations.

  18. Improving accuracy and reliability of 186-keV measurements for unattended enrichment monitoring

    SciTech Connect (OSTI)

    Ianakiev, Kiril D; Boyer, Brian D; Swinhoe, Martyn T; Moss, Calvin E; Goda, Joetta M; Favalli, Andrea; Lombardi, Marcie; Paffett, Mark T; Hill, Thomas R; MacArthur, Duncan W; Smith, Morag K

    2010-04-13

    Improving the quality of safeguards measurements at Gas Centrifuge Enrichment Plants (GCEPs), whilst reducing the inspection effort, is an important objective given the number of existing and new plants that need to be safeguarded. A useful tool in many safeguards approaches is the on-line monitoring of enrichment in process pipes. One aspect of this measurement is a simple, reliable and precise passive measurement of the 186-keV line from {sup 235}U. (The other information required is the amount of gas in the pipe. This can be obtained by transmission measurements or pressure measurements). In this paper we describe our research efforts towards such a passive measurement system. The system includes redundant measurements of the 186-keV line from the gas and separately from the wall deposits. The design also includes measures to reduce the effect of the potentially important background. Such an approach would practically eliminate false alarms and can maintain the operation of the system even with a hardware malfunction in one of the channels. The work involves Monte Carlo modeling and the construction of a proof-of-principle prototype. We will carry out experimental tests with UF{sub 6} gas in pipes with and without deposits in order to demonstrate the deposit correction.

  19. The geological distribution of mixed-layered kaolinite/expandables (K/E) and its importance within the kaolin group

    SciTech Connect (OSTI)

    Hughes, R.E.; Moore, D.M. (Illinois State Geological Survey, Champaign, IL (United States))

    1993-03-01

    Kaolin-group minerals form in soils by at least three alteration pathways: (1) halloysite forms under pH and ionic extremes, and continues to increase in crystallinity and crystallite sizes along its alteration pathway; (2) mixed-layered kaolinite/smectite or kaolinite/expandables (K/S or K/E) forms from 2:1 layer silicates and contains true expandable layers and inherited Fe[sup VI] and Al[sup IV] within its 7[angstrom] layers. Minor increases in crystallinity and crystallite size accompany further alteration along the K/E pathway; and (3) well-crystallized kaolinites, dickites, and nacrites precipitate from solution, mostly in reducing environments where Fe[sup 2+] is removed from solution by crystallization of sulfides or carbonates. Kaolinite formed along pathways 1 and 2 retains attributes of parent material, whereas kaolinite from pathway 3 retains little. K/E occurs in Recent loessal soils of the Midwest and in related glacigenic paleosols, Quaternary-Pliocene paleosols, Eocene ball clays and their source paleosols on the Porters Creek Clay, Jurassic paleosols in Ireland, and Pennsylvanian underclays. The characteristic properties of K/E imprint kaolinite formed along this pathway. The frequency with which this imprint is being found suggests that K/E is spatially and chronologically more widespread than previously reported and that wider recognition of this imprint will increase the understanding of many kaolin occurrences.

  20. Ion source development for the proposed FNAL 750keV injector upgrade

    SciTech Connect (OSTI)

    Bollinger, D.S.; /Fermilab

    2010-11-01

    Currently there is a Proposed FNAL 750keV Injector Upgrade for the replacement of the 40 year old Fermi National Laboratory (FNAL) Cockcroft-Walton accelerators with a new ion source and 200MHz Radio Frequency Quadruple (RFQ). The slit type magnetron being used now will be replaced with a round aperture magnetron similar to the one used at Brookhaven National Lab (BNL). Operational experience from BNL has shown that this type of source is more reliable with a longer lifetime due to better power efficiency. The current source development effort is to produce a reliable source with >60mA of H- beam current, 15Hz rep-rate, 100s pulse width, and a duty factor of 0.15%. The source will be based on the BNL design along with development done at FNAL for the High Intensity Neutrino Source (HINS).

  1. INTEGRAL high energy sky: The keV to MeV cosmic sources

    E-Print Network [OSTI]

    P. Ubertini; A. De Rosa; A. Bazzano; L. Bassani; V. Sguera

    2008-02-03

    After almost 5 years of operation, ESA's International Gamma-Ray Astrophysics Laboratory (INTEGRAL) Space Observatory has unveiled a new soft Gamma ray sky and produced a remarkable harvest of results, ranging from identification of new high energy sources, to the discovery of dozens of variable sources to the mapping of the Aluminum emission from the Galaxy Plane to the presence of electrons and positrons generating the annihilation line in the Galaxy central radian. INTEGRAL is continuing the deep observations of the Galactic Plane and of the whole sky in the soft Gamma ray range. The new IBIS gamma ray catalogue contains more than 420 sources detected above 20 keV. We present a view of the INTEGRAL high energy sky with particular regard to sources emitting at high energy, including Active Galactic Nuclei (AGN), HESS/MAGIC counterparts and new view of the cosmic gamma ray diffuse background.

  2. Constraints on Millicharged Neutrinos via Atomic Ionizations with Germanium Detectors at sub-keV Sensitivities

    E-Print Network [OSTI]

    Chen, Jiunn-Wei; Li, Hau-Bin; Liu, C -P; Singh, Lakhwinder; Wong, Henry T; Wu, Chih-Liang; Wu, Chih-Pan

    2014-01-01

    With the advent of detectors with sub-keV sensitivities, atomic ionization has been identified as a promising avenue to probe possible neutrino electromagnetic properties. The interaction cross-sections induced by millicharged neutrinos are evaluated with the ab-initio multi-configuration relativistic random-phase approximation. There is significant enhancement at atomic binding energies compared to that when the electrons are taken as free particles. Positive signals would distinctly manifest as peaks at specific energies with known intensity ratios. Selected reactor neutrino data with germanium detectors at analysis threshold as low as 300 eV are studied. No such signatures are observed, and a combined limit on the neutrino charge fraction of $| \

  3. Bosonic super-WIMPs as keV-scale dark matter

    SciTech Connect (OSTI)

    Pospelov, Maxim; Ritz, Adam; Voloshin, Mikhail

    2008-12-01

    We consider models of light superweakly interacting cold dark matter, with O(10-100) keV mass, focusing on bosonic candidates such as pseudoscalars and vectors. We analyze the cosmological abundance, the {gamma} background created by particle decays, the impact on stellar processes due to cooling, and the direct-detection capabilities in order to identify classes of models that pass all the constraints. In certain models, variants of photoelectric (or axioelectric) absorption of dark matter in direct-detection experiments can provide a sensitivity to the superweak couplings to the standard model which is superior to all existing indirect constraints. In all models studied, the annual modulation of the direct-detection signal is at the currently unobservable level of O(10{sup -5})

  4. Laser acceleration and deflection of 963 keV electrons with a silicon dielectric structure

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Leedle, Kenneth J.; Pease, R. Fabian; Byer, Robert L.; Harris, James S.

    2015-02-12

    Radio frequency particle accelerators are ubiquitous in ultrasmall and ultrafast science, but their size and cost have prompted exploration of compact and scalable alternatives such as the dielectric laser accelerator. We present the first demonstration, to the best of our knowledge, of high gradient laser acceleration and deflection of electrons with a silicon structure. Driven by a 5 nJ, 130 fs mode-locked Ti:sapphire laser at 907 nm wavelength, our devices achieve accelerating gradients in excess of 200 MeV/m and suboptical cycle streaking of 96.30 keV electrons. These results pave the way for high gradient silicon dielectric laser accelerators using commercialmore »lasers and subfemtosecond electron beam experiments.« less

  5. Tip-based source of femtosecond electron pulses at 30?keV

    SciTech Connect (OSTI)

    Hoffrogge, Johannes; Paul Stein, Jan [Max Planck Institute of Quantum Optics, Hans-Kopfermann-Str. 1, 85748 Garching (Germany); Krüger, Michael; Förster, Michael; Hammer, Jakob; Ehberger, Dominik; Hommelhoff, Peter, E-mail: peter.hommelhoff@fau.de [Max Planck Institute of Quantum Optics, Hans-Kopfermann-Str. 1, 85748 Garching (Germany); Department für Physik, Friedrich-Alexander-Universität Erlangen-Nürnberg, Staudtstr. 1, 91058 Erlangen (Germany); Baum, Peter [Max Planck Institute of Quantum Optics, Hans-Kopfermann-Str. 1, 85748 Garching (Germany); Ludwig-Maximilians-Universität München, Am Coulombwall 1, 85748 Garching (Germany)

    2014-03-07

    We present a nano-scale photoelectron source, optimized for ultrashort pulse durations and well-suited for time-resolved diffraction and advanced laser acceleration experiments. A tungsten tip of several-ten-nanometers diameter mounted in a suppressor-extractor electrode configuration allows the generation of 30?keV electron pulses with an estimated pulse duration of 9?fs (standard deviation; 21?fs full width at half maximum) at the gun exit. We infer the pulse duration from particle tracking simulations, which are in excellent agreement with experimental measurements of the electron-optical properties of the source in the spatial domain. We also demonstrate femtosecond-laser triggered operation of the apparatus. The temporal broadening of the pulse upon propagation to a diffraction sample can be greatly reduced by collimating the beam. Besides the short electron pulse duration, a tip-based source is expected to feature a large transverse coherence and a nanometric emittance.

  6. Molecular dynamics simulations of 30 and 2 keV Ga in Si

    SciTech Connect (OSTI)

    Giannuzzi, Lucille A.; Garrison, Barbara J.

    2007-09-15

    Focused Ga{sup +} ion beams are routinely used at high incident angles for specimen preparation. Molecular dynamics simulations of 2 and 30 keV Ga bombardment of Si(011) at a grazing angle of 88 deg. were conducted to assess sputtering characteristics and damage depth. The bombardment of atomically flat surfaces and surfaces with vacancies shows little energy transfer yielding ion reflection. The bombardment of surfaces with adatoms allows for the coupling of the energy of motion parallel to the surface into the substrate resulting in sputtering. The adatom and one other Si atom eject, and motion in the substrate occurs down to a depth of 13 A. Experimental evidence shows that sputtering is a reality, suggesting that an atomically flat surface is never achieved.

  7. Energetic electrons, 50 keV 6 MeV, at geosynchronous orbit: their responses to solar wind variations

    E-Print Network [OSTI]

    Li, Xinlin

    1 Energetic electrons, 50 keV ­ 6 MeV, at geosynchronous orbit: their responses to solar wind Short title: ENERGETIC ELECTRONS AT GEOSYNCHRONOUS ORBIT #12;2 Abstract. Using simultaneous measurements of the upstream solar wind and of energetic electrons at geosynchronous orbit, we analyze the response

  8. Alan Hoffman, H.Y. Guo, K.E. Miller, R.D. Milroy Redmond Plasma Physics Laboratory

    E-Print Network [OSTI]

    Washington at Seattle, University of

    1 Alan Hoffman, H.Y. Guo, K.E. Miller, R.D. Milroy Redmond Plasma Physics Laboratory University of Washington APS Plasma Physics Conference October 24-28, 2005 Denver, CO Principal Attributes of FRCs Sustained by Rotating Magnetic Field Current Drive #12;2 Abstract Field Reversed Configurations (FRC

  9. TCS Upgrade K.E. Miller, J.A. Grossnickle, T.E. DeHart, W.S. Kimball

    E-Print Network [OSTI]

    Washington at Seattle, University of

    and frequency determines the plasma density, as the temperature is limited, so is the FRC's external field's (400eV, 1021m-3, 5kG) · Produce initial plasma for RMF formed FRC's TCS RMF Interaction ChamberTCS Upgrade K.E. Miller, J.A. Grossnickle, T.E. DeHart, W.S. Kimball Redmond Plasma Physics

  10. Intense emission of cluster anions from gold targets under impact of keV/u gold clusters.

    E-Print Network [OSTI]

    Boyer, Edmond

    Intense emission of cluster anions from gold targets under impact of keV/u gold clusters. M the emission yield of anionic clusters increases much faster with n than expected from simple proportionality. Accordingly, the most intense emission is observed for Au7 - : under Au9 + impact the Au7 - yield per incident

  11. 3.55 keV photon lines from axion to photon conversion in the Milky Way and M31

    SciTech Connect (OSTI)

    Conlon, Joseph P.; Day, Francesca V., E-mail: j.conlon1@physics.ox.ac.uk, E-mail: francesca.day@physics.ox.ac.uk [Rudolf Peierls Centre for Theoretical Physics, University of Oxford, 1 Keble Road, Oxford, OX1 3NP (United Kingdom)

    2014-11-01

    We further explore a scenario in which the recently observed 3.55 keV photon line arises from dark matter decay to an axion-like particle (ALP) of energy 3.55 keV, which then converts to a photon in astrophysical magnetic fields. This ALP scenario is well-motivated by the observed morphology of the 3.55 keV flux. For this scenario we study the expected flux from dark matter decay in the galactic halos of both the Milky Way and Andromeda (M31). The Milky Way magnetic field is asymmetric about the galactic centre, and so the resulting 3.55 keV flux morphology differs significantly from the case of direct dark matter decay to photons. However the Milky Way magnetic field is not large enough to generate an observable signal, even with ASTRO-H. In contrast, M31 has optimal conditions for a ? ? conversion and the intrinsic signal from M31 becomes two orders of magnitude larger than for the Milky Way, comparable to that from clusters and consistent with observations.

  12. Hard x-ray broad band Laue lenses (80 - 600 keV): building methods and performances

    E-Print Network [OSTI]

    Virgilli, E; Rosati, P; Liccardo, V; Squerzanti, S; Carassiti, V; Caroli, E; Auricchio, N; Stephen, J B

    2015-01-01

    We present the status of the laue project devoted to develop a technology for building a 20 meter long focal length Laue lens for hard x-/soft gamma-ray astronomy (80 - 600 keV). The Laue lens is composed of bent crystals of Gallium Arsenide (GaAs, 220) and Germanium (Ge, 111), and, for the first time, the focusing property of bent crystals has been exploited for this field of applications. We show the preliminary results concerning the adhesive employed to fix the crystal tiles over the lens support, the positioning accuracy obtained and possible further improvements. The Laue lens petal that will be completed in a few months has a pass band of 80 - 300 keV and is a fraction of an entire Laue lens capable of focusing X-rays up to 600 keV, possibly extendable down to 20 - 30 keV with suitable low absorption crystal materials and focal length. The final goal is to develop a focusing optics that can improve the sensitivity over current telescopes in this energy band by 2 orders of magnitude.

  13. Library Cell Layout with Alt-PSM Compliance and Composability Ke Cao, Puneet Dhawan and Jiang Hu

    E-Print Network [OSTI]

    Hu, Jiang

    Library Cell Layout with Alt-PSM Compliance and Composability Ke Cao, Puneet Dhawan and Jiang Hu and feasibility of deploying the RET such as Alternating Phase Shift- ing Mask (Alt-PSM) depend heavily on circuit that can achieve Alt- PSM compliance and composability in a constructive manner. Compared to previously

  14. Contrasting physics in wire array z pinch sources of 1-20?keV emission on the Z facility

    SciTech Connect (OSTI)

    Ampleford, D. J., E-mail: damplef@sandia.gov; Jones, B.; Jennings, C. A.; Hansen, S. B.; Cuneo, M. E.; Harvey-Thompson, A. J.; Rochau, G. A.; Coverdale, C. A.; Laspe, A. R.; Flanagan, T. M.; Moore, N. W.; Sinars, D. B.; Lamppa, D. C.; Harding, E. C.; Sygar, W. A.; Savage, M. E.; Moore, J. K.; Focia, R.; Wagoner, T. C.; Killebrew, K. L. [Sandia National Laboratories, Albuquerque, New Mexico 87185 (United States); and others

    2014-05-15

    Imploding wire arrays on the 20 MA Z generator have recently provided some of the most powerful and energetic laboratory sources of multi-keV photons, including ?375?kJ of Al K-shell emission (h????1–2?keV), ?80?kJ of stainless steel K-shell emission (h????5–9?keV) and a kJ-level of Mo K-shell emission (h????17?keV). While the global implosion dynamics of these different wire arrays are very similar, the physical process that dominates the emission from these x-ray sources fall into three broad categories. Al wire arrays produce a column of plasma with densities up to ?3?×?10{sup 21} ions/cm{sup 3}, where opacity inhibits the escape of K-shell photons. Significant structure from instabilities can reduce the density and increase the surface area, therefore increase the K-shell emission. In contrast, stainless steel wire arrays operate in a regime where achieving a high pinch temperature (achieved by thermalizing a high implosion kinetic energy) is critical and, while opacity is present, it has less impact on the pinch emissivity. At higher photon energies, line emission associated with inner shell ionization due to energetic electrons becomes important.

  15. First limits on the 3-200 keV X-ray spectrum of the quiet Sun using RHESSI

    E-Print Network [OSTI]

    Iain G. Hannah; G. J Hurford; H. S. Hudson; R. P. Lin; K. van Bibber

    2007-02-27

    We present the first results using the Reuven Ramaty High-Energy Solar Spectroscopic Imager, RHESSI, to observe solar X-ray emission not associated with active regions, sunspots or flares (the quiet Sun). Using a newly developed chopping technique (fan-beam modulation) during seven periods of offpointing between June 2005 to October 2006, we obtained upper limits over 3-200 keV for the quietest times when the GOES12 1-8A flux fell below $10^{-8}$ Wm$^{-2}$. These values are smaller than previous limits in the 17-120 keV range and extend them to both lower and higher energies. The limit in 3-6 keV is consistent with a coronal temperature $\\leq 6$ MK. For quiet Sun periods when the GOES12 1-8A background flux was between $10^{-8}$ Wm$^{-2}$ and $10^{-7}$ Wm$^{-2}$, the RHESSI 3-6 keV flux correlates to this as a power-law, with an index of $1.08 \\pm 0.13$. The power-law correlation for microflares has a steeper index of $1.29 \\pm 0.06$. We also discuss the possibility of observing quiet Sun X-rays due to solar axions and use the RHESSI quiet Sun limits to estimate the axion-to-photon coupling constant for two different axion emission scenarios.

  16. Characteristics of KE Basin Sludge Samples Archived in the RPL - 2007

    SciTech Connect (OSTI)

    Delegard, Calvin H.; Schmidt, Andrew J.; Chenault, Jeffrey W.

    2011-11-22

    Samples of sludge were collected from the K East fuel storage basin (KE Basin) floor, contiguous pits (Weasel Pit, North Load Out Pit, Dummy Elevator Pit, and Tech View Pit), and fuel storage canisters between 1995 and 2003 for chemical and radionuclide concentration analysis, physical property determination, and chemical process testing work. Because of the value of the sludge in this testing and because of the cost of obtaining additional fresh samples, an ongoing program of sludge preservation has taken place with the goals to track the sludge identities and preserve, as well as possible, the sludge composition by keeping the sludge in sealed jars and maintaining water coverage on the sludge consistent with the controlling Fluor Hanford (FH) Sampling and Analysis plans and FH contracts with the Pacific Northwest National Laboratory (PNNL). This work was originally initiated to provide material for planned hydrothermal treatment testing in accordance with the test plan for the Sludge Treatment Project (STP) corrosion process chemistry follow on testing (Delegard et al. 2007). Although most of the planned hydrothermal testing was canceled in July 2007 (as described in the forward of Delegard et al. 2007), sample consolidation and characterization was continued to identify a set of well-characterized sludge samples that are suited to support evolving STP initiatives. The work described in the letter was performed by the PNNL under the direction of the Sludge Treatment Project, managed by Fluor Hanford.

  17. LUCIA - a new 1-7 keV {mu}-XAS Beamline

    SciTech Connect (OSTI)

    Janousch, M.; Schmidt, Th.; Wetter, R.; Grolimund, G.; Scheidegger, A.M.; Flank, A.-M.; Lagarde, P.; Cauchon, G.; Bac, S.; Dubuisson, J.M.

    2004-05-12

    LURE-SOLEIL (France) and the Swiss Light Source (SLS) are building together a new micro focused beamline for micro x-ray absorption spectroscopy and micro imaging. This line is designed to deliver a photon flux of the order of 1012 ph/sec on a 1 x 1 {mu}m spot within the energy domain of 0.8 to 7 keV. This beam line is being installed on the X07M straight section of SLS. The source is an APPLE II undulator with a period of 54 mm. The main advantage of this device lies in the delivery of any degree of polarization, linear or circular, over the whole energy range, without the need of a sample-position change. The monochromator will be a fixed exit double crystal equipped with 5 sets of crystals, thanks to the very narrow photon beam from the undulator ( Beryl, KTP, YB66, InSb(111), Si(111) ). The optics includes a first horizontal focusing mirror (spherical), which produces an intermediate source for the horizontal mirror of a Kirkpatrick-Baez (KB) system. The vertical mirror of the KB directly images the source. Finally, a low-pass double mirror filter insures a proper harmonic rejection.

  18. Radiative neutrino mass and 3.5 keV X-ray line

    E-Print Network [OSTI]

    Baek, Seungwon

    2015-01-01

    We consider an extension of Zee-Babu model to explain the smallness of neutrino masses. (1) We extend the lepton number symmetry of the original model to local $B-L$ symmetry. (2) We introduce three Dirac dark matter candidates with flavor-dependent $B-L$ charges. After the spontaneous breaking of $B-L$, a discrete symmetry $Z_6$ remains, which guarantees the stability of dark matter. Then the model can explain the 3.5 keV X-ray line signal with decaying dark matter. We also introduce a real scalar field which is singlet under both the SM and $U(1)_{B-L}$ and can explain the current relic abundance of the Dirac fermionic DMs. If the mixing with the SM Higgs boson is small, it does not contribute to DM direct detection. The main contribution to the scattering of DM off atomic nuclei comes from the exchange of $U(1)_{B-L}$ gauge boson, $Z'$, and is suppressed below current experimental bound when $Z'$ mass is heavy ($\\gtrsim 10$ TeV). If the singlet scalar mass is about 0.1--10 MeV, DM self-interaction can be l...

  19. Quantum Efficiency Calibration of AXAF CCDs from 2 10 keV Herbert L. Manning, Stephen E. Jones, Steve E. Kissel,

    E-Print Network [OSTI]

    keV and 10 keV. The reference CCDs are identical to and are used as calibration transfer standards geometry and typical data are also presented. KEYWORDS: ACIS, AXAF, calibration, CCD, Si(Li) detector and Pennsylvania State University, is developing the AXAF CCD Imaging Spectrometer (ACIS), one of AXAF'S two

  20. First measurement of the 14N(p,gamma)15O cross section down to 70 keV

    E-Print Network [OSTI]

    Lemut, A; Confortola, F; Bonetti, R; Broggini, C; Corvisiero, P; Costantini, H; Cruz, J; Formicola, A; Fülöp, Z; Gervino, G; Guglielmetti, A; Gustavino, C; Gyürky, G; Imbriani, G; Jesus, A P; Junker, M; Limata, B; Menegazzo, R; Prati, P; Roca, V; Rogalla, D; Rolfs, C; Romano, M; Alvarez, C R; Schumann, F; Somorjai, E; Straniero, O; Strieder, F; Terrasi, F; Trautvetter, H P; Fulop, Zs.; Gyurky, Gy.

    2006-01-01

    In stars with temperatures above 20*10^6 K, hydrogen burning is dominated by the CNO cycle. Its rate is determined by the slowest process, the 14N(p,gamma)15O reaction. Deep underground in Italy's Gran Sasso laboratory, at the LUNA 400 kV accelerator, the cross section of this reaction has been measured at energies much lower than ever achieved before. Using a windowless gas target and a 4pi BGO summing detector, direct cross section data has been obtained down to 70 keV, reaching a value of 0.24 picobarn. The Gamow peak has been covered by experimental data for several scenarios of stable and explosive hydrogen burning. In addition, the strength of the 259 keV resonance has been remeasured. The thermonuclear reaction rate has been calculated for temperatures 90 - 300 *10^6 K, for the first time with negligible impact from extrapolations.

  1. First measurement of the 14N(p,gamma)15O cross section down to 70 keV

    E-Print Network [OSTI]

    A. Lemut; D. Bemmerer; F. Confortola; R. Bonetti; C. Broggini; P. Corvisiero; H. Costantini; J. Cruz; A. Formicola; Zs. Fulop; G. Gervino; A. Guglielmetti; C. Gustavino; Gy. Gyurky; G. Imbriani; A. P. Jesus; M. Junker; B. Limata; R. Menegazzo; P. Prati; V. Roca; D. Rogalla; C. Rolfs; M. Romano; C. Rossi Alvarez; F. Schumann; E. Somorjai; O. Straniero; F. Strieder; F. Terrasi; H. P. Trautvetter

    2006-02-09

    In stars with temperatures above 20*10^6 K, hydrogen burning is dominated by the CNO cycle. Its rate is determined by the slowest process, the 14N(p,gamma)15O reaction. Deep underground in Italy's Gran Sasso laboratory, at the LUNA 400 kV accelerator, the cross section of this reaction has been measured at energies much lower than ever achieved before. Using a windowless gas target and a 4pi BGO summing detector, direct cross section data has been obtained down to 70 keV, reaching a value of 0.24 picobarn. The Gamow peak has been covered by experimental data for several scenarios of stable and explosive hydrogen burning. In addition, the strength of the 259 keV resonance has been remeasured. The thermonuclear reaction rate has been calculated for temperatures 90 - 300 *10^6 K, for the first time with negligible impact from extrapolations.

  2. Electron-positron pair production near the Galactic Centre and the 511 keV emission line

    E-Print Network [OSTI]

    Chan, Man Ho

    2015-01-01

    Recent observations indicate that a high production rate of positrons (strong 511 keV line) and a significant amount of excess GeV gamma-ray exist in our Galactic bulge. The latter issue can be explained by $\\sim 40$ GeV dark matter annihilation through $b \\bar{b}$ channel while the former one remains a mystery. On the other hand, recent studies reveal that a large amount of high density gas might exist near the Galactic Centre million years ago to account for the young, massive stars extending from 0.04 pc - 7 pc. In this article, I propose a new scenario and show that the 40 GeV dark matter annihilation model can also explain the required positron production rate (511 keV line) in the bulge due to the existence of the high density gas cloud near the supermassive black hole long time ago.

  3. RHESSI Observations of the Solar Flare Iron-line Feature at 6.7 keV

    E-Print Network [OSTI]

    K. J. H. Phillips; C. Chifor; B. R. Dennis

    2006-07-13

    Analysis of RHESSI 3--10 keV spectra for 27 solar flares is reported. This energy range includes thermal free--free and free--bound continuum and two line features, at 6.7keV and 8keV, principally due to highly ionized iron (Fe). We used the continuum and the flux in the so-called Fe-line feature at 6.7keV to derive the electron temperature T_e, the emission measure, and the Fe-line equivalent width as functions of time in each flare. The Fe/H abundance ratio in each flare is derived from the Fe-line equivalent width as a function of T_e. To minimize instrumental problems with high count rates and effects associated with multi-temperature and nonthermal spectral components, spectra are presented mostly during the flare decay phase, when the emission measure and temperature were smoothly varying. We found flare Fe/H abundance ratios that are consistent with the coronal abundance of Fe (i.e. 4 times the photospheric abundance) to within 20% for at least 17 of the 27 flares; for 7 flares, the Fe/H abundance ratio is possibly higher by up to a factor of 2. We find evidence that the Fe XXV ion fractions are less than the theoretically predicted values by up to 60% at T_e=25 MK appear to be displaced from the most recent theoretical values by between 1 and 3 MK.

  4. TRACKING DOWN THE SOURCE POPULATION RESPONSIBLE FOR THE UNRESOLVED COSMIC 6-8 keV BACKGROUND

    SciTech Connect (OSTI)

    Xue, Y. Q.; Wang, S. X.; Brandt, W. N.; Luo, B.; Schneider, D. P.; Young, M.; Alexander, D. M.; Bauer, F. E.; Comastri, A.; Gilli, R.; Fabian, A. C.; Lehmer, B. D.; Vignali, C.

    2012-10-20

    Using the 4 Ms Chandra Deep Field-South (CDF-S) survey, we have identified a sample of 6845 X-ray-undetected galaxies that dominates the unresolved Almost-Equal-To 20%-25% of the 6-8 keV cosmic X-ray background (XRB). This sample was constructed by applying mass and color cuts to sources from a parent catalog based on GOODS-South Hubble Space Telescope z-band imaging of the central 6'radius area of the 4 Ms CDF-S. The stacked 6-8 keV detection is significant at the 3.9{sigma} level, but the stacked emission was not detected in the 4-6 keV band, which indicates the existence of an underlying population of highly obscured active galactic nuclei (AGNs). Further examinations of these 6845 galaxies indicate that the galaxies on the top of the blue cloud and with redshifts of 1 {approx}< z {approx}< 3, magnitudes of 25 {approx}< z {sub 850} {approx}< 28, and stellar masses of 2 Multiplication-Sign 10{sup 8} {approx}< M {sub *}/M {sub Sun} {approx}< 2 Multiplication-Sign 10{sup 9} make the majority contributions to the unresolved 6-8 keV XRB. Such a population is seemingly surprising given that the majority of the X-ray-detected AGNs reside in massive ({approx}> 10{sup 10} M {sub Sun }) galaxies. We discuss constraints upon this underlying AGN population, supporting evidence for relatively low mass galaxies hosting highly obscured AGNs, and prospects for further boosting the stacked signal.

  5. Decaying vector dark matter as an explanation for the 3.5 keV line from galaxy clusters

    SciTech Connect (OSTI)

    Farzan, Yasaman; Akbarieh, Amin Rezaei E-mail: am_rezaei@physics.sharif.ir

    2014-11-01

    We present a Vector Dark Matter (VDM) model that explains the 3.5 keV line recently observed in the XMM-Newton observatory data from galaxy clusters. In this model, dark matter is composed of two vector bosons, V and V', which couple to the photon through an effective generalized Chern-Simons coupling, g{sub V}. V' is slightly heavier than V with a mass splitting m{sub V'} – m{sub V} ? 3.5 keV. The decay of V' to V and a photon gives rise to the 3.5 keV line. The production of V and V' takes place in the early universe within the freeze-in framework through the effective g{sub V} coupling when m{sub V'} < T < ?, ? being the cut-off above which the effective g{sub V} coupling is not valid. We introduce a high energy model that gives rise to the g{sub V} coupling at low energies. To do this, V and V' are promoted to gauge bosons of spontaneously broken new U(1){sub V} and U(1){sub V'} gauge symmetries, respectively. The high energy sector includes milli-charged chiral fermions that lead to the g{sub V} coupling at low energy via triangle diagrams.

  6. Scheme to increase the output average spectral flux of the European XFEL at $14.4$ keV

    E-Print Network [OSTI]

    Geloni, Gianluca; Saldin, Evgeni

    2015-01-01

    Techniques like inelastic X-ray scattering (IXS) and nuclear resonance scattering (NRS) are currently limited by the photon flux available at X-ray sources. At $14.4$ keV, third generation synchrotron radiation sources produce a maximum of $10^{10}$ photons per second in a meV bandwidth. In this work we discuss about the possibility of increasing this flux a thousand-fold by exploiting high repetition rate self-seeded pulses at the European XFEL. Here we report on a feasibility study for an optimized configuration of the SASE2 beamline at the European XFEL which combines self-seeding and undulator tapering techniques in order to increase the average spectral flux at $14.4$ keV. In particular, we propose to perform monochromatization at $7.2$ keV with the help of self-seeding, and amplify the seed in the first part of output undulator. The amplification process can be stopped at a position well before saturation, where the electron beam gets considerable bunching at the 2nd harmonic of the coherent radiation. ...

  7. Study of 1–8 keV K-? x-ray emission from high intensity femtosecond laser produced plasma

    SciTech Connect (OSTI)

    Arora, V., E-mail: arora@rrcat.gov.in; Naik, P. A.; Chakera, J. A.; Bagchi, S.; Tayyab, M.; Gupta, P. D. [Laser Plasma Division, Raja Rammana Centre for Advanced Technology, Indore 452 013 (India)] [Laser Plasma Division, Raja Rammana Centre for Advanced Technology, Indore 452 013 (India)

    2014-04-15

    We report an experimental study on the optimization of a laser plasma based x-ray source of ultra-short duration K-? line radiation. The interaction of pulses from a CPA based Ti:sapphire laser (10 TW, 45 fs, 10 Hz) system with magnesium, titanium, iron and copper solid target generates bright 1-8 keV K-? x-ray radiation. The x-ray yield was optimized with the laser pulse duration (at fixed fluence) which is varied in the range of 45 fs to 1.4 ps. It showed a maximum at laser pulse duration of ?740 fs, 420 fs, 350 and 250 fs for Mg (1.3 keV), Ti (4.5 keV), Fe (6.4 keV) and Cu (8.05 keV) respectively. The x-ray yield is observed to be independent of the sign of the chirp. The scaling of the K-? yield (I{sub x} ? I{sub L}{sup ?}) for 45 fs and optimized pulse duration were measured for laser intensities in the region of 3 × 10{sup 14} – 8 × 10{sup 17}. The x-ray yield shows a much faster scaling exponent ? = 1.5, 2.1, 2.4 and 2.6 for Mg, Ti, Fe and Cu respectively at optimized pulse duration compared to scaling exponent of 0.65, 1.3, 1.5, and 1.7 obtained for 45 fs duration laser pulses. The laser to x-ray energy conversion efficiencies obtained for different target materials are ?{sub Mg} = 1.2 × 10{sup ?5}, ?{sub Ti} = 3.1 × 10{sup ?5}, ?{sub Fe} = 2.7 × 10{sup ?5}, ?{sub Cu} = 1.9 × 10{sup ?5}. The results have been explained from the efficient generation of optimal energy hot electrons at longer laser pulse duration. The faster scaling observed at optimal pulse duration indicates that the x-ray source is generated at the target surface and saturation of x-ray emission would appear at larger laser fluence. An example of utilization of the source for measurement of shock-wave profiles in a silicon crystal by time resolved x-ray diffraction is also presented.

  8. 20-100 keV properties of cataclysmic variables detected in the INTEGRAL/IBIS survey

    E-Print Network [OSTI]

    E. J. Barlow; C. Knigge; A. J. Bird; A. J. Dean; D. J. Clark; A. B. Hill; M. Molina; V. Sguera

    2006-07-20

    Analysis of INTEGRAL/IBIS survey observations has revealed that the rare intermediate polar and asynchronous polar cataclysmic variables are consistently found to emit in the 20-100 keV energy band, whereas synchronous polars and the common non-magnetic CVs rarely do so. From the correlation of a candidate INTEGRAL/IBIS survey source list with a CV catalogue, 15 CV detections by IBIS have been established including a new INTEGRAL source IGR J06253+7334. The properties of these sources and 4 additional CV candidates are discussed in the context of their 20-100 keV emission characteristics and we conclude that the INTEGRAL mission is an important tool in the detection of new magnetic CV systems. Furthermore, analysis of the time-averaged spectra of CVs detected by INTEGRAL indicate that although there is little difference between the spectral slopes of the different sub-types, intermediate polars may be considerably more luminous than polars in the soft gamma-ray regime. We also present the detection of an unusual high-energy burst from V1223 Sgr discovered by inspection of the IBIS light-curve. Additionally, we have compared the IBIS and optical AAVSO light-curves of SS Cyg and extracted IBIS spectra during single periods of optical outburst and quiescence. We find that the 20-100 keV flux is an order of magnitude greater during optical quiescence. This is in agreement with previous studies which show that the hard X-ray component of SS Cyg is suppressed during high accretion states

  9. Simulations of Microchannel Plate Sensitivity to <20 keV X-rays as a Function of Energy and Incident Angle

    SciTech Connect (OSTI)

    Kruschwitz, Craig; Wu, M.; Rochau, G. A.

    2013-06-13

    We present results of Monte Carlo simulations of microchannel plate (MCP) response to x-rays in the 250 eV to 20 keV energy range as a function of both x-ray energy and impact angle. The model is based on the model presented in Rochau et al. (2006). However, while the Rochau et al. (2006) model was two-dimensional, and their results only went to 5 keV, our results have been expanded to 20 keV, and our model has been incorporated into a three-dimensional Monte Carlo MCP model that we have developed over the past several years (Kruschwitz et al. 2011). X-ray penetration through multiple MCP pore walls is increasingly important above 5 keV. The effect of x-ray penetration through multiple pores on MCP performance was studied and is presented.

  10. What can BeppoSAX do about the 2-10 keV cosmic background ? A progress report

    E-Print Network [OSTI]

    L. Chiappetti; G. Cusumano; S. Del Sordo; M. C. Maccarone; T. Mineo; S. Molendi

    1997-12-18

    We report the current status of the analysis of the MECS background using the entire dataset of the BeppoSAX Science performance Verification Phase. We have collected 360 ks of dark Earth instrumental background, 470 ks of bright Earth background and 1100 ks of blank field data. We are attempting to model the instrumental background in terms of its various components (in particular the spatial modulation of the residual contamination by the built-in Fe calibration sources), and then use this model, and the information on the vignetting and the PSF to derive the cosmic background in the 2-10 keV range

  11. FHBS calculation of ionized electron angular and energy distribution following the p+H collision at 20 ke

    E-Print Network [OSTI]

    Fu, Jun

    2004-11-15

    -Centered Expansion (SCE). In the SCE method a basis is con ned around the target center. This limited basis has proved to be less effective in calculating charge transfer, which is important at the impact energy range we are considering (20 keV). Thus the SCE... is not a good candidate to obtain meaningful differential cross sections. Despite this de ciency the SCE is helpful in checking our ability to describe the electron continuum. The One-and-Half-Centered-Expansion (OHCE) method makes an improvement over...

  12. Search for Anomalous Scattering of keV Neutrons from H2O-D2O Mixtures R. Moreh,1,2,* R. C. Block,2

    E-Print Network [OSTI]

    Danon, Yaron

    Search for Anomalous Scattering of keV Neutrons from H2O-D2O Mixtures R. Moreh,1,2,* R. C. Block,2 (Received 20 January 2005; published 12 May 2005) We measured the neutron scattering intensities from pure Linac and the final energy of the scattered neutrons was fixed at 24.3 keV using a 20 cm thick pure iron

  13. Strengths of the resonances at 436, 479, 639, 661, and 1279 keV in the $^{22}$Ne(p,$?$)$^{23}$Na reaction

    E-Print Network [OSTI]

    Rosanna Depalo; Francesca Cavanna; Federico Ferraro; Alessandra Slemer; Tariq Al-Abdullah; Shavkat Akhmadaliev; Michael Anders; Daniel Bemmerer; Zoltán Elekes; Giovanni Mattei; Stefan Reinicke; Konrad Schmidt; Carlo Scian; Louis Wagner

    2015-07-14

    The $^{22}$Ne(p,$\\gamma$)$^{23}$Na reaction is included in the neon-sodium cycle of hydrogen burning. A number of narrow resonances in the Gamow window dominates the thermonuclear reaction rate. Several resonance strengths are only poorly known. As a result, the $^{22}$Ne(p,$\\gamma$)$^{23}$Na thermonuclear reaction rate is the most uncertain rate of the cycle. Here, a new experimental study of the strengths of the resonances at 436, 479, 639, 661, and 1279 keV proton beam energy is reported. The data have been obtained using a tantalum target implanted with $^{22}$Ne. The strengths $\\omega\\gamma$ of the resonances at 436, 639, and 661 keV have been determined with a relative approach, using the 479 and 1279 keV resonances for normalization. Subsequently, the ratio of resonance strengths of the 479 and 1279 keV resonances was determined, improving the precision of these two standards. The new data are consistent with, but more precise than, the literature with the exception of the resonance at 661 keV, which is found to be less intense by one order of magnitude. In addition, improved branching ratios have been determined for the gamma decay of the resonances at 436, 479, and 639 keV.

  14. The X-ray Properties of Low-Frequency Quasi-Periodic Oscillations from GRS 1915+105 up to 120 keV

    E-Print Network [OSTI]

    John A. Tomsick; Philip Kaaret

    2000-09-21

    We present a study of the properties of strong 0.8-3.0 Hz quasi-periodic oscillations (QPOs) that occurred during 1997 RXTE observations of the microquasar GRS 1915+105 in the low-hard state. The high count rates allow us to track individual QPO peaks, and we exploit this to develop a QPO folding technique. In contrast to previous QPO studies with RXTE, we emphasize the high energy QPO properties and report the detection of a QPO in the 60-124 keV energy band. Our technique allows us, for the first time, to measure the phase of the QPO harmonics relative to the fundamental. Variation in this phase difference leads to changes in the shape of the QPO profile with energy and over time. The strength of the QPO fundamental increases up to 19 keV, but the data do not suggest that the strength continues to increase above this energy. In some cases, the QPO amplitudes in the 30-60 keV and 60-124 keV energy bands are significantly less than in the 13-19 keV and 19-29 keV energy bands. We also use our technique to measure the phase lag of the QPO fundamental and harmonics. In the case where negative phase lags are detected for the fundamental, positive phase lags are detected for the first harmonic.

  15. Strengths of the resonances at 436, 479, 639, 661, and 1279 keV in the $^{22}$Ne(p,$?$)$^{23}$Na reaction

    E-Print Network [OSTI]

    Rosanna Depalo; Francesca Cavanna; Federico Ferraro; Alessandra Slemer; Tariq Al-Abdullah; Shavkat Akhmadaliev; Michael Anders; Daniel Bemmerer; Zoltán Elekes; Giovanni Mattei; Stefan Reinicke; Konrad Schmidt; Carlo Scian; Louis Wagner

    2015-09-18

    The $^{22}$Ne(p,$\\gamma$)$^{23}$Na reaction is included in the neon-sodium cycle of hydrogen burning. A number of narrow resonances in the Gamow window dominates the thermonuclear reaction rate. Several resonance strengths are only poorly known. As a result, the $^{22}$Ne(p,$\\gamma$)$^{23}$Na thermonuclear reaction rate is the most uncertain rate of the cycle. Here, a new experimental study of the strengths of the resonances at 436, 479, 639, 661, and 1279 keV proton beam energy is reported. The data have been obtained using a tantalum target implanted with $^{22}$Ne. The strengths $\\omega\\gamma$ of the resonances at 436, 639, and 661 keV have been determined with a relative approach, using the 479 and 1279 keV resonances for normalization. Subsequently, the ratio of resonance strengths of the 479 and 1279 keV resonances was determined, improving the precision of these two standards. The new data are consistent with, but more precise than, the literature with the exception of the resonance at 661 keV, which is found to be less intense by one order of magnitude. In addition, improved branching ratios have been determined for the gamma decay of the resonances at 436, 479, and 639 keV.

  16. Strengths of the resonances at 436, 479, 639, 661, and 1279 keV in the $^{22}$Ne(p,$?$)$^{23}$Na reaction

    E-Print Network [OSTI]

    Rosanna Depalo; Francesca Cavanna; Federico Ferraro; Alessandra Slemer; Tariq Al-Abdullah; Shavkat Akhmadaliev; Michael Anders; Daniel Bemmerer; Zoltán Elekes; Giovanni Mattei; Stefan Reinicke; Konrad Schmidt; Carlo Scian; Louis Wagner

    2015-10-21

    The $^{22}$Ne(p,$\\gamma$)$^{23}$Na reaction is included in the neon-sodium cycle of hydrogen burning. A number of narrow resonances in the Gamow window dominates the thermonuclear reaction rate. Several resonance strengths are only poorly known. As a result, the $^{22}$Ne(p,$\\gamma$)$^{23}$Na thermonuclear reaction rate is the most uncertain rate of the cycle. Here, a new experimental study of the strengths of the resonances at 436, 479, 639, 661, and 1279 keV proton beam energy is reported. The data have been obtained using a tantalum target implanted with $^{22}$Ne. The strengths $\\omega\\gamma$ of the resonances at 436, 639, and 661 keV have been determined with a relative approach, using the 479 and 1279 keV resonances for normalization. Subsequently, the ratio of resonance strengths of the 479 and 1279 keV resonances was determined, improving the precision of these two standards. The new data are consistent with, but more precise than, the literature with the exception of the resonance at 661 keV, which is found to be less intense by one order of magnitude. In addition, improved branching ratios have been determined for the gamma decay of the resonances at 436, 479, and 639 keV.

  17. A survey for Fe 6.4 keV emission in young stellar objects in rho Oph: the strong fluorescence from Elias 29

    E-Print Network [OSTI]

    F. Favata; G. Micela; B. Silva; S. Sciortino; M. Tsujimoto

    2004-12-20

    We report the results of a search for 6.4 keV Fe fluorescent emission in Young Stellar Objects (YSOs) with measured accretion luminosities in the rho Oph cloud, using all existing chandra and XMM-Newton observations of the region. A total of nine such YSOs have X-ray data with sufficiently high S/N for the 6.4 keV line to be potentially detected if present. A positive detection of the Fe 6.4 keV line is reported for one object, Elias 29, in both the XMM-Newton and the chandra data. The 6.4 keV line is detected in Elias 29 both during quiescent and flaring emission, unlikely all previously reported detections of 6.4 keV Fe fluorescence in YSOs which were made during intense flaring. The observed equivalent width of the fluorescent line is large, at W_alpha approx 140 eV, ruling out fluorescence from diffuse circumstellar material. It is also larger than expected for simple reflection from a solar-composition photosphere or circumstellar disk, but it is compatible with being due to fluorescence from a centrally illuminated circumstellar disk. The X-ray spectrum of Elias 29 is also peculiar in terms of its high (ionized) Fe abundance, as evident from the very intense Fe xxv 6.7 keV line emission; we speculate on the possible mechanism leading to the observed high abundance.

  18. Effect of 200 keV Ar{sup +} implantation on optical and electrical properties of polyethyleneterepthalate (PET)

    SciTech Connect (OSTI)

    Kumar, Rajiv Goyal, Meetika Sharma, Ambika; Aggarwal, Sanjeev; Sharma, Annu; Kanjilal, D.

    2015-05-15

    In the present paper we have discussed the effect of 200 keV Ar{sup +} ions on the electrical and optical properties of PET samples. PET samples were implanted with 200 keV Ar{sup +} ions to various doses ranging from 1×10{sup 15} to 1×10{sup 17} Ar{sup +} cm{sup 2}. The changes in the electrical and optical properties of pristine and implanted PET specimens have been studied by using Keithley electrometer and UV-Visible absorption spectroscopy. The electrical conductivity has found to be increased with increasing ion dose. The optical studies have revealed the drastic alterations in optical band gap from 3.63 eV to 1.48 eV and also increase in number of carbon atoms per cluster from 215 to 537. Further, the change in the electrical conductivity and optical band gap has also been correlated with the formation of conductive islands in the implanted layers of PET.

  19. Enhancement of the 6.4 keV line in the inner Galactic ridge: Proton-induced fluorescence?

    E-Print Network [OSTI]

    Nobukawa, K K; Uchiyama, H; Tsuru, T G; Torii, K; Tanaka, T; Chernyshov, D O; Fukui, Y; Dogiel, V A; Koyama, K

    2015-01-01

    A common idea for the origin of the Galactic diffuse X-ray emission, particularly that of the iron lines from neutral and highly ionized atoms, is a superposition of many cataclysmic variables and coronally active binaries. In this scenario, the flux should symmetrically distribute between the east and west on the plane with respect to Sagittarius A$^*$ because the stellar mass distribution determined by infrared observations is nearly symmetric. This symmetry is confirmed for the highly ionized iron line as well as the continuum emission. However, a clear excess of the neutral iron line in the near east of the Galactic center compared to the near-west side is found. The flux distribution of the excess emission well correlates with molecular column density. The X-ray spectrum of the excess emission is described by a power-law continuum plus a 6.4 keV line with the large equivalent width of $\\sim1.3$ keV, which is hardly explained by the low-energy electron bombardment scenario. The longitudinal and latitudina...

  20. New production mechanism for keV sterile neutrino Dark Matter by decays of frozen-in scalars

    SciTech Connect (OSTI)

    Merle, Alexander [Physics and Astronomy, University of Southampton, Highfield, Southampton, SO17 1BJ (United Kingdom); Niro, Viviana [Departament d'Estructura i Constituents de la Matèria and Institut de Ciències del Cosmos, Universitat de Barcelona, Diagonal 647, E-08028 Barcelona (Spain); Schmidt, Daniel, E-mail: a.merle@soton.ac.uk, E-mail: niro@ecm.ub.edu, E-mail: Daniel.Schmidt@mpi-hd.mpg.de [Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg (Germany)

    2014-03-01

    We propose a new production mechanism for keV sterile neutrino Dark Matter. In our setting, we assume the existence of a scalar singlet particle which never entered thermal equilibrium in the early Universe, since it only couples to the Standard Model fields by a really small Higgs portal interaction. For suitable values of this coupling, the scalar can undergo the so-called freeze-in process, and in this way be efficiently produced in the early Universe. These scalars can then decay into keV sterile neutrinos and produce the correct Dark Matter abundance. While similar settings in which the scalar does enter thermal equilibrium and then freezes out have been studied previously, the mechanism proposed here is new and represents a versatile extension of the known case. We perform a detailed numerical calculation of the DM production using a set of coupled Boltzmann equations, and we illustrate the successful regions in the parameter space. Our production mechanism notably can even work in models where active-sterile mixing is completely absent.

  1. Search for: All records | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    (4) Koutmos, Markos (4) Wan, Bingbing (4) Wan, Ke (4) Huang, Jing (3) Lue, Neal F. (3) Sun, Jia (3) Sunahara, Roger K. (3) Yu, Eun Young (3) Baciu, Paul (2) Cao, Fang (2) Confer,...

  2. A survey for Fe 6.4 keV emission in young stellar objects in rho Oph: the strong fluorescence from Elias 29

    E-Print Network [OSTI]

    Favata, F; Silva, B; Sciortino, S; Tsujimoto, M

    2004-01-01

    We report the results of a search for 6.4 keV Fe fluorescent emission in Young Stellar Objects (YSOs) with measured accretion luminosities in the rho Oph cloud, using all existing chandra and XMM-Newton observations of the region. A total of nine such YSOs have X-ray data with sufficiently high S/N for the 6.4 keV line to be potentially detected if present. A positive detection of the Fe 6.4 keV line is reported for one object, Elias 29, in both the XMM-Newton and the chandra data. The 6.4 keV line is detected in Elias 29 both during quiescent and flaring emission, unlikely all previously reported detections of 6.4 keV Fe fluorescence in YSOs which were made during intense flaring. The observed equivalent width of the fluorescent line is large, at W_alpha approx 140 eV, ruling out fluorescence from diffuse circumstellar material. It is also larger than expected for simple reflection from a solar-composition photosphere or circumstellar disk, but it is compatible with being due to fluorescence from a centrally...

  3. Strengths of the resonances at 436, 479, 639, 661, and 1279 keV in the $^{22}$Ne(p,$\\gamma$)$^{23}$Na reaction

    E-Print Network [OSTI]

    Depalo, Rosanna; Ferraro, Federico; Slemer, Alessandra; Al-Abdullah, Tariq; Akhmadaliev, Shavkat; Anders, Michael; Bemmerer, Daniel; Elekes, Zoltán; Mattei, Giovanni; Reinicke, Stefan; Schmidt, Konrad; Scian, Carlo; Wagner, Louis

    2015-01-01

    The $^{22}$Ne(p,$\\gamma$)$^{23}$Na reaction is included in the neon-sodium cycle of hydrogen burning. A number of narrow resonances in the Gamow window dominates the thermonuclear reaction rate. Several resonance strengths are only poorly known. As a result, the $^{22}$Ne(p,$\\gamma$)$^{23}$Na thermonuclear reaction rate is the most uncertain rate of the cycle. Here, a new experimental study of the strengths of the resonances at 436, 479, 639, 661, and 1279 keV proton beam energy is reported. The data have been obtained using a tantalum target implanted with $^{22}$Ne. The strengths $\\omega\\gamma$ of the resonances at 436, 639, and 661 keV have been determined with a relative approach, using the 479 and 1279 keV resonances for normalization. Subsequently, the ratio of resonance strengths of the 479 and 1279 keV resonances was determined, improving the precision of these two standards. The new data are consistent with, but more precise than, the literature with the exception of the resonance at 661 keV, which i...

  4. Compact focusing spectrometer: Visible (1 eV) to hard x-rays (200 keV)

    SciTech Connect (OSTI)

    Baronova, E. O.; Stepanenko, A. M.; Pereira, N. R.

    2014-11-15

    A low-cost spectrometer that covers a wide range of photon energies can be useful to teach spectroscopy, and for simple, rapid measurements of the photon spectrum produced by small plasma devices. The spectrometer here achieves its wide range, nominally from 1 eV to 200 keV, with a series of spherically and cylindrically bent gratings or crystals that all have the same shape and the same radius of curvature; they are complemented by matching apertures and diagnostics on the Rowland circle that serves as the circular part of the spectrometer's vacuum vessel. Spectral lines are easily identified with software that finds their positions from the dispersion of each diffractive element and the known energies of the lines.

  5. Status of the KATRIN experiment and prospects to search for keV-mass sterile neutrinos in tritium ?-decay

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Mertens, Susanne

    2015-03-24

    In this contribution the current status and future perspectives of the Karlsruhe Tritium Neutrino (KATRIN) Experiment are presented. The prime goal of this single ?-decay experiment is to probe the absolute neutrino mass scale with a sensitivity of 200 meV (90% CL). We discuss first results of the recent main spectrometer commissioning measurements, successfully verifying the spectrometer’s basic vacuum, transmission and background properties. We also discuss the prospects of making use of the KATRIN tritium source, to search for sterile neutrinos in the multi-keV mass range constituting a classical candidate for Warm Dark Matter. Due to the very high sourcemore »luminosity, a statistical sensitivity down to active-sterile mixing angles of sin² ? « less

  6. Constraints on millicharged neutrinos via analysis of data from atomic ionizations with germanium detectors at sub-keV sensitivities

    E-Print Network [OSTI]

    Jiunn-Wei Chen; Hsin-Chang Chi; Hau-Bin Li; C. -P. Liu; Lakhwinder Singh; Henry T. Wong; Chih-Liang Wu; Chih-Pan Wu

    2014-07-31

    With the advent of detectors with sub-keV sensitivities, atomic ionization has been identified as a promising avenue to probe possible neutrino electromagnetic properties. The interaction cross-sections induced by millicharged neutrinos are evaluated with the ab-initio multi-configuration relativistic random-phase approximation. There is significant enhancement at atomic binding energies compared to that when the electrons are taken as free particles. Positive signals would distinctly manifest as peaks at specific energies with known intensity ratios. Selected reactor neutrino data with germanium detectors at analysis threshold as low as 300 eV are studied. No such signatures are observed, and a combined limit on the neutrino charge fraction of | \

  7. The 14C(n,g) cross section between 10 keV and 1 MeV

    E-Print Network [OSTI]

    R. Reifarth; M. Heil; C. Forssen; U. Besserer; A. Couture; S. Dababneh; L. Doerr; J. Goerres; R. C. Haight; F. Kaeppeler; A. Mengoni; S. O'Brien; N. Patronis; R. Plag; R. S. Rundberg; M. Wiescher; J. B. Wilhelmy

    2009-10-01

    The neutron capture cross section of 14C is of relevance for several nucleosynthesis scenarios such as inhomogeneous Big Bang models, neutron induced CNO cycles, and neutrino driven wind models for the r process. The 14C(n,g) reaction is also important for the validation of the Coulomb dissociation method, where the (n,g) cross section can be indirectly obtained via the time-reversed process. So far, the example of 14C is the only case with neutrons where both, direct measurement and indirect Coulomb dissociation, have been applied. Unfortunately, the interpretation is obscured by discrepancies between several experiments and theory. Therefore, we report on new direct measurements of the 14C(n,g) reaction with neutron energies ranging from 20 to 800 keV.

  8. Measurement of high-energy (10–60 keV) x-ray spectral line widths with eV accuracy

    SciTech Connect (OSTI)

    Seely, J. F., E-mail: seelyjf@gmail.com; Feldman, U. [Artep Inc., 2922 Excelsior Springs Court, Ellicott City, Maryland 21042 (United States); Glover, J. L.; Hudson, L. T.; Ralchenko, Y.; Henins, Albert [National Institute of Standards and Technology, Gaithersburg, Maryland 20899 (United States); Pereira, N. [Ecopulse Inc., P. O. Box 528, Springfield, Virginia 22152 (United States); Di Stefano, C. A.; Kuranz, C. C.; Drake, R. P. [University of Michigan, Ann Arbor, Michigan 48109 (United States); Chen, Hui; Williams, G. J.; Park, J. [Lawrence Livermore National Laboratory, Livermore, California 94551 (United States)

    2014-11-15

    A high resolution crystal spectrometer utilizing a crystal in transmission geometry has been developed and experimentally optimized to measure the widths of emission lines in the 10–60 keV energy range with eV accuracy. The spectrometer achieves high spectral resolution by utilizing crystal planes with small lattice spacings (down to 2d = 0.099 nm), a large crystal bending radius and Rowland circle diameter (965 mm), and an image plate detector with high spatial resolution (60 ?m in the case of the Fuji TR image plate). High resolution W L-shell and K-shell laboratory test spectra in the 10–60 keV range and Ho K-shell spectra near 47 keV recorded at the LLNL Titan laser facility are presented. The Ho K-shell spectra are the highest resolution hard x-ray spectra recorded from a solid target irradiated by a high-intensity laser.

  9. Comment to the paper: 'Seeded quantum FEL at 478 keV' AIP Conf. Proc. 'Light at Extreme Intensities' 1462 173-176 (2012)'

    E-Print Network [OSTI]

    Vittoria Petrillo

    2012-12-19

    We criticize the thesis exposed the paper 'Seeded quantum FEL at 478 keV' AIP Conf. Proc. 'Light at Extreme Intensities,' 1462 173-176 (2012), which presents the possibility of producing gamma rays at 478 KeV by means of a seeded quantum FEL driven by an electron beam at 125 MeV, current I=40 A, interacting with an infrared laser. We show that, in the case analyzed, the FEL Pierce parameter has a value two orders of magnitude less than what claimed in the paper in question, overturning the conclusions of the analysis.

  10. Neutron Resonance Parameters of 238U and the Calculated Cross Sections from the Reich-Moore Analysis of Experimental Data in the Neutron Energy Range from 0 keV to 20 keV

    SciTech Connect (OSTI)

    Derrien, H

    2005-12-05

    The neutron resonance parameters of {sup 238}U were obtained from a SAMMY analysis of high-resolution neutron transmission measurements and high-resolution capture cross section measurements performed at the Oak Ridge Electron Linear Accelerator (ORELA) in the years 1970-1990, and from more recent transmission and capture cross section measurements performed at the Geel Linear Accelerator (GELINA). Compared with previous evaluations, the energy range for this resonance analysis was extended from 10 to 20 keV, taking advantage of the high resolution of the most recent ORELA transmission measurements. The experimental database and the method of analysis are described in this report. The neutron transmissions and the capture cross sections calculated with the resonance parameters are compared with the experimental data. A description is given of the statistical properties of the resonance parameters and of the recommended values of the average parameters. The new evaluation results in a slight decrease of the effective capture resonance integral and improves the prediction of integral thermal benchmarks by 70 pcm to 200 pcm.

  11. Hawaii Papa O Ke Ao -is the name chosen for this group tasked with developing a plan to make the University of

    E-Print Network [OSTI]

    Hawaii Papa O Ke Ao -is the name chosen for this group tasked with developing a plan to make the University of Hawaii a leader in indigenous education. The phrase simply means Hawaii Foundations (Papa) and Wkea (reflected in his Ao form), the original parents of Hawaii Consciousness. #12; 1

  12. First INTEGRAL observations of V404 Cygni during the 2015 outburst : spectral behavior in the 20 - 650 keV energy range

    E-Print Network [OSTI]

    Roques, Jean-Pierre; Bazzano, Angela; Fiocchi, Mariateresa; Natalucci, Lorenzo; Ubertini, Pietro

    2015-01-01

    In June 2015, the source V404 Cygni (= GS2023+38) underwent an extraordinary outburst. We present the results obtained during the first revolution dedicated to this target by the INTEGRAL mission, and focus on the spectral behavior in the hard X-ray domain, using both SPI and IBIS instruments. The source exhibits extreme variability, and reaches fluxes of several tens of Crab. However, the emission between 20 and 650 keV can be understood in terms of two main components, varying on all the observable timescales, similar to what is observed in the persistent black hole system Cyg X-1. The low energy component (up to ~ 200 keV) presents a rather unusual shape, probably due to the intrinsic source variability. Nonetheless, a satisfactory description is obtained with a Comptonization model, if an unusually hot population of seed photons ($kT_0$ ~ 7 keV) is introduced. Above this first component, a clear excess extending up to 400-600 keV leads us to investigate a scenario where an additional (cutoff) power law co...

  13. Scattering of 64 eV to 3 keV Neutrons from Polyethylene and Graphite and the Coherence Length Problem

    E-Print Network [OSTI]

    Danon, Yaron

    Scattering of 64 eV to 3 keV Neutrons from Polyethylene and Graphite and the Coherence Length 12180, USA (Received 31 August 2005; published 8 February 2006) We measured the neutron scattering by the neutron coherence length. The scattered intensity ratios were found to conform to conventional

  14. Energy Loss by keV Ions in Silicon H. O. Funsten, S. M. Ritzau,* R.W. Harper, and J. E. Borovsky

    E-Print Network [OSTI]

    Johnson, Robert E.

    Energy Loss by keV Ions in Silicon H. O. Funsten, S. M. Ritzau,* R.W. Harper, and J. E. Borovsky with an ultrathin passivation layer, the average total energy lost to silicon target electrons (electronic stopping) by incident low energy ions and the recoil target atoms they generate is directly measured. We find

  15. Capture of a neutron to excited states of a {sup 9}Be nucleus taking into account resonance at 622 keV

    SciTech Connect (OSTI)

    Dubovichenko, S. B., E-mail: dubovichenko@gmail.com [National Space Agency of the Republic of Kazakhstan, Fessenkov Astrophysical Institute, National Space Research and Technologies Center (Kazakhstan)

    2013-10-15

    Radiative capture of a neutron to the ground and excited states of the 9Be nucleus is considered using the potential cluster model with forbidden states and with classification of cluster states by the Young schemes taking into account resonance at 622 keV for thermal and astrophysical energies.

  16. Bent-crystal Laue spectrograph for measuring x-ray spectra (15keV)

    SciTech Connect (OSTI)

    Failor, B. H.; Wong, S.; Riordan, J. C.; Hudson, L. T.; O'Brien, C. M.; Seltzer, S. M.; Seiler, S.; Pressley, L.; Lojewski, D. Y.

    2006-10-15

    A bent-crystal Laue {l_brace}or Cauchois [J. Phys. Radium 3, 320 (1932)] geometry{r_brace} spectrograph is a good compromise between sensitivity and spectral resolution for measuring x-ray spectra (15keV) from large area x-ray sources because source-size spectral broadening is mitigated. We have designed, built, and tested such a spectrograph for measuring the spectra from electron-beam x-ray sources with diameters as large as 30 cm. The same spectrograph geometry has also been used to diagnose (with higher spectral resolution) smaller sources, such as x-ray tubes for mammography and laser-driven inertial fusion targets. We review our spectrograph design and describe the performance of different components. We have compared the reflectivity and spectral resolution of LiF, and Ge diffracting crystals. We have also measured the differences in sensitivity and spectral resolution using different x-ray to light converters (plastic scintillator, CsI, and Gd{sub 2}O{sub 2}S) fiber optically coupled to an intensified charge-coupled device camera. We have also coupled scintillating fibers to photomultiplier tubes to obtain temporal records for discrete energy channels.

  17. Cross-field diffusion of energetic (100 keV to 2 MeV) protons in interplanetary space

    SciTech Connect (OSTI)

    Costa Jr, Edio da [Instituto Federal de Minas Gerais-IFMG, Ouro Preto, MG, 35400-000 (Brazil); Tsurutani, Bruce T. [Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 (United States); Alves, Maria Virgínia; Echer, Ezequiel [Instituto Nacional de Pesquisas Espaciais-INPE, São José dos Campos, SP, 12227-010 (Brazil); Lakhina, Gurbax S., E-mail: edio.junior@ifmg.edu.br, E-mail: costajr.e@gmail.com [Indian Institute for Geomagnetism, Navi Mumbai 410 218 (India)

    2013-12-01

    Magnetic field magnitude decreases (MDs) are observed in several regions of the interplanetary medium. In this paper, we characterize MDs observed by the Ulysses spacecraft instrumentation over the solar south pole by using magnetic field data to obtain the empirical size, magnetic field MD, and frequency of occurrence distribution functions. The interaction of energetic (100 keV to 2 MeV) protons with these MDs is investigated. Charged particle and MD interactions can be described by a geometrical model allowing the calculation of the guiding center shift after each interaction. Using the distribution functions for the MD characteristics, Monte Carlo simulations are used to obtain the cross-field diffusion coefficients as a function of particle kinetic energy. It is found that the protons under consideration cross-field diffuse at a rate of up to ?11% of the Bohm rate. The same method used in this paper can be applied to other space regions where MDs are observed, once their local features are well known.

  18. 60 keV Ar?-ion induced modification of microstructural, compositional, and vibrational properties of InSb

    SciTech Connect (OSTI)

    Datta, D. P.; Garg, S. K.; Som, T., E-mail: tsom@iopb.res.in [SUNAG Laboratory, Institute of Physics, Bhubaneswar, Odisha 751005 (India); Satpati, B. [Surface Physics and Materials Science Division, Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata 700064 (India); Sahoo, P. K. [School of Physical Sciences, National Institute of Science Education and Research, Bhubaneswar 751005, Odisha (India); Kanjilal, A. [Department of Physics, Shiv Nadar University, Uttar Pradesh 203207 (India); Dhara, S. [Surface and Nanoscience Division, Materials Science Group, Indira Gandhi Centre for Atomic Research, Kalpakkam 603102 (India); Kanjilal, D. [Inter-University Accelerator Centre, Aruna Asaf Ali Marg, New Delhi 110067 (India)

    2014-10-14

    Room temperature irradiation of InSb(111) by 60 keV Ar?-ions at normal (0°) and oblique (60°) angles of incidence led to the formation of nanoporous structure in the high fluence regime of 1×10¹? to 3×10¹? ions cm?². While a porous layer comprising of a network of interconnected nanofibers was generated by normal ion incidence, evolution of plate-like structures was observed for obliquely incident ions. Systematic studies of composition and structure using energy dispersive x-ray spectroscopy, Raman spectroscopy, x-ray photoelectron spectroscopy, Raman mapping, grazing incidence x-ray diffraction, and cross-sectional transmission electron microscopy revealed a high degree of oxidation of the ion-induced microstructures with the presence of In?O? and Sb?O? phases and presence of nanocrystallites within the nanoporous structures. The observed structural evolution was understood in terms of processes driven by ion-induced defect accumulation within InSb.

  19. The INTEGRAL/SPI 511 keV Signal from Hidden Valleys in Type Ia and Core Collapse Supernova Explosions

    E-Print Network [OSTI]

    Hooman Davoudiasl; Gilad Perez

    2010-04-03

    We examine under what circumstances the INTEGRAL/SPI 511 keV signal can originate from decays of MeV-scale composite states produced by: (A) thermonuclear (type Ia) or (B) core collapse supernovae (SNe). The requisite dynamical properties that would account for the observed data are quite distinct, for cases (A) and (B). We determine these requirements in simple hidden valley models, where the escape fraction problem is naturally addressed, due to the long lifetime of the new composite states. A novel feature of scenario (A) is that the dynamics of type Ia SNe, standard candles for cosmological measurements, might be affected by our mechanism. In case (A), the mass of the state mediating between the hidden sector and the SM $\\ee$ could be a few hundred GeV and within the reach of a 500 GeV $\\ee$ linear collider. We also note that kinetic mixing of the photon with a light vector state may provide an interesting alternate mediation mechanism in this case. Scenarios based on case (B) are challenged by the need for a mechanism to transport some of the produced positrons toward the Galactic bulge, due to the inferred distribution of core collapse sources. The mass of the mediator in case (B) is typically hundreds of TeV, leading to long-lived particles that could, under certain circumstances, include a viable dark matter candidate. The appearance of long-lived particles in typical models leads to cosmological constraints and we address how a consistent cosmic history may be achieved.

  20. Evaluation of the ²³?Pu prompt fission neutron spectrum induced by neutrons of 500 keV and associated covariances

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Neudecker, D.; Talou, P.; Kawano, T.; Smith, D. L.; Capote, R.; Rising, M. E.; Kahler, A. C.

    2015-08-01

    We present evaluations of the prompt fission neutron spectrum (PFNS) of ²³?Pu induced by 500 keV neutrons, and associated covariances. In a previous evaluation by Talou et al. 2010, surprisingly low evaluated uncertainties were obtained, partly due to simplifying assumptions in the quantification of uncertainties from experiment and model. Therefore, special emphasis is placed here on a thorough uncertainty quantification of experimental data and of the Los Alamos model predicted values entering the evaluation. In addition, the Los Alamos model was extended and an evaluation technique was employed that takes into account the qualitative differences between normalized model predicted valuesmore »and experimental shape data. These improvements lead to changes in the evaluated PFNS and overall larger evaluated uncertainties than in the previous work. However, these evaluated uncertainties are still smaller than those obtained in a statistical analysis using experimental information only, due to strong model correlations. Hence, suggestions to estimate model defect uncertainties are presented, which lead to more reasonable evaluated uncertainties. The calculated keff of selected criticality benchmarks obtained with these new evaluations agree with each other within their uncertainties despite the different approaches to estimate model defect uncertainties. The keff one standard deviations overlap with some of those obtained using ENDF/B-VII.1, albeit their mean values are further away from unity. Spectral indexes for the Jezebel critical assembly calculated with the newly evaluated PFNS agree with the experimental data for selected (n,?) and (n,f) reactions, and show improvements for high-energy threshold (n,2n) reactions compared to ENDF/B-VII.1.« less

  1. Cleanup Verification Package for the 100-K-55:1 and 100-K-56:1 Pipelines and the 116-KW-4 and 116-KE-5 Heat Recovery Stations

    SciTech Connect (OSTI)

    J. M. Capron

    2005-09-28

    This cleanup verification package documents completion of remedial action for the 100-K-55:1 and 100-K-56:1 reactor cooling effluent underground pipelines and for the 116-KW-4 and 116-KE-5 heat recovery stations. The 100-K-55 and 100-K-56 sites consisted of those process effluent pipelines that serviced the 105-KW and 105-KE Reactors.

  2. Neutron physics of the Re/Os clock. II. The (n,n{sup '}) cross section of {sup 187}Os at 30 keV neutron energy

    SciTech Connect (OSTI)

    Mosconi, M.; Heil, M.; Kaeppeler, F.; Plag, R.; Mengoni, A.

    2010-07-15

    The inelastic neutron-scattering cross section of {sup 187}Os has been determined in a time-of-flight experiment at the Karlsruhe 3.7-MV Van de Graaff accelerator. An almost monoenergetic beam of 30-keV neutrons was produced at the threshold of the {sup 7}Li(p,n){sup 7}Be reaction. Information on the inelastic channel is required for reliable calculations of the so-called stellar enhancement factor, by which the laboratory cross section of {sup 187}Os must be corrected in order to account for the thermal population of low-lying excited states at the temperatures of s-process nucleosynthesis, in particular of the important state at 9.75 keV. This correction represents a crucial step in the interpretation of the {sup 187}Os/{sup 187}Re pair as a cosmochronometer.

  3. Efficient laser-induced 6-8 keV x-ray production from iron oxide aerogel and foil-lined cavity targets

    SciTech Connect (OSTI)

    Perez, F.; Kay, J. J.; Patterson, J. R.; Kane, J.; May, M.; Emig, J.; Colvin, J.; Gammon, S.; Satcher, J. H. Jr.; Fournier, K. B. [Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550 (United States); Villette, B.; Girard, F.; Reverdin, C. [CEA DAM DIF, F-91297 Arpajon (France); Sorce, C. [Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550 (United States); University of Rochester - Laboratory for Laser Energetics, 250 E. River Rd, Rochester, New York 14623-1299 (United States); Jaquez, J. [General Atomics, San Diego, California 92121 (United States)

    2012-08-15

    The performance of new iron-based laser-driven x-ray sources has been tested at the OMEGA laser facility for production of x rays in the 6.5-8.5 keV range. Two types of targets were experimentally investigated: low-density iron oxide aerogels (density 6-16 mg/cm{sup 3}) and stainless steel foil-lined cavity targets (steel thickness 1-5 {mu}m). The targets were irradiated by 40 beams of the OMEGA laser (500 J/beam, 1 ns pulse, wavelength 351 nm). All targets showed good coupling with the laser, with <5% of the incident laser light backscattered by the resulting plasma in all cases (typically <2.5%). The aerogel targets produced T{sub e}=2 to 3 keV, n{sub e}=0.12-0.2 critical density plasmas yielding a 40%-60% laser-to-x-ray total conversion efficiency (CE) (1.2%-3% in the Fe K-shell range). The foil cavity targets produced T{sub e}{approx} 2 keV, n{sub e}{approx} 0.15 critical density plasmas yielding a 60%-75% conversion efficiency (1.6%-2.2% in the Fe K-shell range). Time-resolved images illustrate that the volumetric heating of low-density aerogels allow them to emit a higher K-shell x-ray yield even though they contain fewer Fe atoms. However, their challenging fabrication process leads to a larger shot-to-shot variation than cavity targets.

  4. The feasibility of obtaining very short pulsed beams in the energy range 300-600 keV from the 3 MeV pulsed Van de Graaff accelerator (I.B.I.S)

    E-Print Network [OSTI]

    Porter, D R; Porter, D R no 1; Waring, S no 1

    1975-01-01

    The feasibility of obtaining very short pulsed beams in the energy range 300-600 keV from the 3 MeV pulsed Van de Graaff accelerator (I.B.I.S)

  5. Earth X-ray albedo for cosmic X-ray background radiation in the 1--1000 keV band

    E-Print Network [OSTI]

    E. Churazov; S. Sazonov; R. Sunyaev; M. Revnivtsev

    2008-02-11

    We present calculations of the reflection of the cosmic X-ray background (CXB) by the Earth's atmosphere in the 1--1000 keV energy range. The calculations include Compton scattering and X-ray fluorescent emission and are based on a realistic chemical composition of the atmosphere. Such calculations are relevant for CXB studies using the Earth as an obscuring screen (as was recently done by INTEGRAL). The Earth's reflectivity is further compared with that of the Sun and the Moon -- the two other objects in the Solar system subtending a large solid angle on the sky, as needed for CXB studies.

  6. Formation of negative hydrogen ions in 7-keV OH+ + Ar and OH+ + acetone collisions: a general process for H-bearing molecular species

    E-Print Network [OSTI]

    Juhász, Zoltán; Rangama, Jimmy; Bene, Erika; Sorgunlu-Frankland, Burcu; Frémont, François; Chesnel, Jean-Yves

    2015-01-01

    We demonstrate that the formation of negative hydrogen ions (H-) occurs in a wide class of atomic and molecular collisions. In our experiments, H- emission from hydroxyl cations and acetone molecules was observed in keV-energy collisions. We show that hydride (H-) anions are formed via direct collisional fragmentation of molecules, followed by electron grabbing by fast hydrogen fragments. Such general mechanism in hydrogen-containing molecules may significantly influence reaction networks in planetary atmospheres and astrophysical media and new reaction pathways may have to be added in radiolysis studies.

  7. Measurement of the keV-neutron capture cross section and capture gamma-ray spectrum of isotopes around N=82 region

    SciTech Connect (OSTI)

    Katabuchi, Tatsuya; Igashira, Masayuki

    2012-11-12

    The keV-neutron capture cross section and capture {gamma}-ray spectra of nuclides with a neutron magic number N= 82, {sup 139}La and {sup 142}Nd, were newly measured by the time-of-flight method. Capture {gamma}-rays were detected with an anti-Compton NaI(T1) spectrometer, and the pulse-height weighting technique was applied to derive the neutron capture cross section. The results were provided with our previous measurements of other nuclides around N= 82, {sup 140}Ce, {sup 141}Pr, {sup 143}Nd and {sup 145}Nd.

  8. Inelastic processes in Na$^{+}-$Ne, Ar and Ne$^{+},$ Ar$^{+}-$Na collisions in energy range $0.5-14$ keV

    E-Print Network [OSTI]

    Lomsadze, R A; Kezerashvili, R Ya

    2015-01-01

    Absolute cross sections for charge-exchange, ionization and excitation in Na$% ^{+}-$Ne and Na$^{+}-$Ar collisions were measured in the ion energy range $% 0.5-10$ keV using a refined version of a capacitor method, and collision and optical spectroscopy methods simultaneously in the same experimental set-up. Ionization cross sections for Ne$^{+}-$Na and Ar$^{+}-$Na collisions are measured at the energies of $2-14$ keV using a crossed-beam spectroscopy method. The experimental data and the schematic correlation diagrams are used to analyze and determine the mechanisms for these processes. For the charge-exchange process in Na$^{+}$ $-$Ar collisions two nonadiabatic regions are revealed and mechanisms responsible for these regions are explained. Structural peculiarity on the excitation function for the resonance lines of argon atoms in Na$^{+}$ $-$Ar collisions are observed and the possible mechanisms of this phenomenon are explored. The measured ionization cross sections for Na$^{+}-$Ne and Ne$^{+}-$Na collisi...

  9. Search for 14.4 keV solar axions emitted in the M1-transition of 57Fe nuclei with CAST

    E-Print Network [OSTI]

    CAST Collaboration; S. Andriamonje; S. Aune; D. Autiero; K. Barth; A. Belov; B. Beltrán; H. Bräuninger; J. M. Carmona; S. Cebrián; J. I. Collar; T. Dafni; M. Davenport; L. Di Lella; C. Eleftheriadis; J. Englhauser; G. Fanourakis; E. Ferrer-Ribas; H. Fischer; J. Franz; P. Friedrich; T. Geralis; I. Giomataris; S. Gninenko; H. Gómez; M. Hasinoff; F. H. Heinsius; D. H. H. Hoffmann; I. G. Irastorza; J. Jacoby; K. Jakov?i?; D. Kang; K. Königsmann; R. Kotthaus; M. Kr?mar; K. Kousouris; M. Kuster; B. Laki?; C. Lasseur; A. Liolios; A. Ljubi?i?; G. Lutz; G. Luzón; D. Miller; J. Morales; A. Ortiz; T. Papaevangelou; A. Placci; G. Raffelt; H. Riege; A. Rodríguez; J. Ruz; I. Savvidis; Y. Semertzidis; P. Serpico; L. Stewart; J. Vieira; J. Villar; J. Vogel; L. Walckiers; K. Zioutas

    2009-12-04

    We have searched for 14.4 keV solar axions or more general axion-like particles (ALPs), that may be emitted in the M1 nuclear transition of 57Fe, by using the axion-to-photon conversion in the CERN Axion Solar Telescope (CAST) with evacuated magnet bores (Phase I). From the absence of excess of the monoenergetic X-rays when the magnet was pointing to the Sun, we set model-independent constraints on the coupling constants of pseudoscalar particles that couple to two photons and to a nucleon g_{a\\gamma} |-1.19 g_{aN}^{0}+g_{aN}^{3}|<1.36\\times 10^{-16} GeV^{-1} for m_{a}<0.03 eV at the 95% confidence level.

  10. Note: On the generation of sub-300 keV flash-X-rays using rod-pinch diode: An experimental investigation

    SciTech Connect (OSTI)

    Satyanarayana, N.; Rajawat, R. K.; Basu, Shibaji; Rao, A. Durga Prasad; Mittal, K. C.

    2014-09-15

    Generation of flash X-rays (FXRs) at less than 500 keV is described with emphasis on experimental investigation. The pulser is a Tesla transformer-Water transmission line based pulsed power generator operating in double resonance mode to power a rod-pinch diode. The configuration of aspect ratio reported here falls much below the normally reported ratios for the rod-pinch diode operation. Experimental investigation at such low pulsed voltage has revealed “flowering” of the anode tip and “pitting” of the perspex window. A possible explanation in terms of Lorentz body force is discussed rather than the pinch mechanism generally suggested in literature. The experimental investigation for the FXR generation is corroborated by measuring the radiation dose using CaSO{sub 4} (Dy) thermo luminescent dosimeters.

  11. A 3.55 keV line from DM ? a ? ?: predictions for cool-core and non-cool-core clusters

    SciTech Connect (OSTI)

    Conlon, Joseph P.; Powell, Andrew J., E-mail: j.conlon1@physics.ox.ac.uk, E-mail: andrew.powell2@physics.ox.ac.uk [Rudolf Peierls Centre for Theoretical Physics, University of Oxford, 1 Keble Road, Oxford, OX1 3NP (United Kingdom)

    2015-01-01

    We further study a scenario in which a 3.55 keV X-ray line arises from decay of dark matter to an axion-like particle (ALP), that subsequently converts to a photon in astrophysical magnetic fields. We perform numerical simulations of Gaussian random magnetic fields with radial scaling of the magnetic field magnitude with the electron density, for both cool-core 'Perseus' and non-cool-core 'Coma' electron density profiles. Using these, we quantitatively study the resulting signal strength and morphology for cool-core and non-cool-core clusters. Our study includes the effects of fields of view that cover only the central part of the cluster, the effects of offset pointings on the radial decline of signal strength and the effects of dividing clusters into annuli. We find good agreement with current data and make predictions for future analyses and observations.

  12. 1-to 10-keV x-ray backlighting of annular wire arrays on the Sandia Z-machine using bent-crystal imaging techniques.

    SciTech Connect (OSTI)

    Rambo, Patrick K.; Wenger, David Franklin; Bennett, Guy R.; Sinars, Daniel Brian; Smith, Ian Craig; Porter, John Larry, Jr.; Cuneo, Michael Edward; Rovang, Dean Curtis; Anderson, Jessica E.

    2003-07-01

    Annular wire array implosions on the Sandia Z-machine can produce >200 TW and 1-2 MJ of soft x rays in the 0.1-10 keV range. The x-ray flux and debris in this environment present significant challenges for radiographic diagnostics. X-ray backlighting diagnostics at 1865 and 6181 eV using spherically-bent crystals have been fielded on the Z-machine, each with a {approx}0.6 eVspectral bandpass, 10 {micro}m spatial resolution, and a 4 mm by 20mm field of view. The Z-Beamlet laser, a 2-TW, 2-kJ Nd:glass laser({lambda} = 527 nm), is used to produce 0.1-1 J x-ray sources for radiography. The design, calibration, and performance of these diagnostics is presented.

  13. Dipolar dark matter in light of 3.5 keV X-ray Line, Neutrino mass and LUX data

    E-Print Network [OSTI]

    Patra, Sudhanwa; Sahu, Narendra

    2014-01-01

    A simple extension of the standard model (SM) providing transient magnetic moments to right-handed neutrinos is presented. In this model, the decay of next-to-lightest right-handed heavy neutrino to the lightest one and a photon (N 2 -> N 1 + gamma) can explain the 3.5 keV X-ray line signal observed by XMM-Newton X-ray observatory. Beside the SM particles and heavy right-handed Majorana neutrinos, the model contains a singly charged scalar (H) and an extra Higgs doublet (Sigma). Within this minimal set of extra fields the sub-eV masses of left-handed neutrinos are also explained. Moreover, we show that the spin-independent DM-nucleon cross-section is compatible with latest LUX data.

  14. First result of the experimental search for the 9.4 keV solar axion reactions with Kr-83 in the copper proportional counter

    E-Print Network [OSTI]

    Yu. M. Gavrilyuk; A. M. Gangapshev; A. V. Derbin; V. V. Kazalov; H. J. Kim; Y. D. Kim; V. V. Kobychev; V. V. Kuzminov; Luqman Ali; V. N. Muratova; S. I. Panasenko; S. S. Ratkevich; D. A. Semenov; D. A. Tekueva; S. P. Yakimenko; E. V. Unzhakov

    2014-05-06

    The experimental search for solar hadronic axions is started at the Baksan Neutrino Observatory of the Institute for Nuclear Researches Russian Academy of Science. It is assumed that axions are created in the Sun during M1-transition between the first thermally excited level at 9.4 keV and the ground state in Kr-83. The experiment is based on axion detection via resonant absorption process by the same nucleus in the detector. The big copper proportional counter filled with krypton is used to detect signals from axions. The experimental setup is situated in the deep underground low background laboratory. No evidence of axion detection were found after the 26.5 days data collection. Resulting new upper limit on axion mass is m_{A} < 130 eV at 95% C.L.

  15. Characteristics of STP Pre-2004 Archived KE Basin Sludge Samples Before and After Re-Jarring in the RPL - April 2012

    SciTech Connect (OSTI)

    Sinkov, Sergey I.; Delegard, Calvin H.; Schmidt, Andrew J.; Chenault, Jeffrey W.

    2012-09-28

    This report describes results of work performed in the Shielded Analytical Laboratory (SAL) at the Pacific Northwest National Laboratory’s (PNNL) Radiochemical Processing Laboratory (RPL) with archive K East (KE) Basin sludge samples obtained before the year 2004, with some of them composited and initially characterized five years ago (Delegard et al. 2011). The previously performed testing included the physical properties determinations for selected samples (settled and particle densities, water and solids concentrations), the pH, as well as identification of crystalline phases by X-ray diffractometry (XRD) for selected samples. Another objective of the previous characterization and testing campaign was to transfer some sludge composites and individual samples into new storage containers to overcome the embrittlement effect which develops in original glass containers as a result of extended exposure to high radiation fields and which increases probability of sample loss.

  16. ASCA Discovery of Diffuse 6.4 keV Emission Near the Sgr C Complex: A New X-ray Reflection Nebula

    E-Print Network [OSTI]

    H. Murakami; K. Koyama; M. Tsujimoto; Y. Maeda; M. Sakano

    2000-12-14

    We present an ASCA discovery of diffuse hard X-ray emission from the Sgr C complex with its peak in the vicinity of the molecular cloud core. The X-ray spectrum is characterized by a strong 6.4-keV line and large absorption. These properties suggest that Sgr C is a new X-ray reflection nebula which emits fluorescent and scattered X-rays via irradiation from an external X-ray source. We found no adequately bright source in the immediate Sgr C vicinity to fully account for the fluorescence. The irradiating source may be the Galactic nucleus Sgr A*, which was brighter in the past than it is now as is suggested from observations of the first X-ray reflection nebula Sgr B2.

  17. XiAn Lv Jing Technology | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page| Open Energy Information Serbia-EnhancingEtGeorgia:Illinois:Wizard PowerWyandanch, New1991) | OpenTech GroupXergiXiAn

  18. Kuala Lumpur, Malaysia Jing Meng, Chivas Miho, Lambros Mitropoulos

    E-Print Network [OSTI]

    Prevedouros, Panos D.

    floodwaters and prevent spillover into communities near the Jalan Tun Perak Bridge Reduces traffic congestion. SMART requires a series of sharp bends. Turning the 4 story high drill 20m under ground is not easy. #12;Social Problems/Policy Changes Tunnel Safety :Fire Safety is a key focus of the SMART design. SMART

  19. Integrating Provenance Information in Reservoir Engineering Jing Zhao, Na Chen

    E-Print Network [OSTI]

    Hwang, Kai

    and logging while drilling (LWD) 2 . Designed to replace wireline logging, LWD captures a wealth of additional

  20. Querying Provenance Information in Distributed Environments Jing Zhao*, Yogesh Simmhan

    E-Print Network [OSTI]

    Hwang, Kai

    Science Department, ¶ Ming Hsieh Dept. of Electrical Engineering University of Southern California, Los, a meteorology project may collect provenance about weather measurements and forecast models within a single provenance repository shared by that collaboration, while a smart power grid workflow that makes city

  1. Measurement of Plasma Dynamics in the TCSU RMF Current Drive Experiment K.M. Velas, C.L. Deards, P.A. Melnik, J.A Grossnickle, A.L. Hoffman, K.E. Miller, R.D. Milroy

    E-Print Network [OSTI]

    Washington at Seattle, University of

    Measurement of Plasma Dynamics in the TCSU RMF Current Drive Experiment K.M. Velas, C.L. Deards, P.A. Melnik, J.A Grossnickle, A.L. Hoffman, K.E. Miller, R.D. Milroy Redmond Plasma Physics Laboratory, University of Washington Detailed magnetic measurements of Field-Reversed Configurations (FRC) from

  2. Lucas, S.G., Morgan, G.S. and Zeigler, K.E., eds., 2005, New Mexico's Ice Ages, New Mexico Museum of Natural History and Science Bulletin No. 28. INTRODUCTION

    E-Print Network [OSTI]

    Allen, Bruce D.

    Bureau of Geology and Mineral Resources, New Mexico Tech, Socorro, New Mexico 87801 Abstract107 Lucas, S.G., Morgan, G.S. and Zeigler, K.E., eds., 2005, New Mexico's Ice Ages, New Mexico of the large, topographically closed basins in New Mexico during the last ice age (Fig. 1). Compli- mentary

  3. Atom penetration from a thin film into the substrate during sputtering by polyenergetic Ar{sup +} ion beam with mean energy of 9.4 keV

    SciTech Connect (OSTI)

    Kalin, B.A.; Gladkov, V.P.; Volkov, N.V.; Sabo, S.E. [Moscow Engineering Physics Inst. (Russian Federation)

    1995-12-31

    Penetration of alien atoms (Be, Ni) into Be, Al, Zr, Si and diamond was investigated under Ar{sup +} ion bombardment of samples having thermally evaporated films of 30--50 nm. Sputtering was carried out using a wide energy spectrum beam of Ar{sup +} ions of 9.4 keV to dose D = 1 {times} 10{sup 16}--10{sup 19} ion/cm{sup 2}. Implanted atom distribution in the targets was measured by Rutherford backscattering spectrometry (RBS) of H{sup +} and He{sup +} ions with energy of 1.6 MeV as well as secondary ion mass-spectrometry (SIMS). During the bombardment, the penetration depth of Ar atoms increases with dose linearly. This depth is more than 3--20 times deeper than the projected range of bombarding ions and recoil atoms. This is a deep action effect. The analysis shows that the experimental data for foreign atoms penetration depth are similar to the data calculated for atom migration through the interstitial site in a field of internal (lateral) compressive stresses created in the near-surface layer of the substrate as a result of implantation. Under these experimental conditions atom ratio r{sub i}/r{sub m} (r{sub i} -- radius of dopant, r{sub m} -- radius target of substrate) can play a principal determining role.

  4. Hidden axion dark matter decaying through mixing with QCD axion and the 3.5 keV X-ray line

    SciTech Connect (OSTI)

    Higaki, Tetsutaro [Theory Center, KEK, 1-1 Oho, Tsukuba, Ibaraki 305-0801 (Japan); Kitajima, Naoya; Takahashi, Fuminobu, E-mail: thigaki@post.kek.jp, E-mail: kitajima@tuhep.phys.tohoku.ac.jp, E-mail: fumi@tuhep.phys.tohoku.ac.jp [Department of Physics, Tohoku University, Sendai 980-8578 (Japan)

    2014-12-01

    Hidden axions may be coupled to the standard model particles through a kinetic or mass mixing with QCD axion. We study a scenario in which a hidden axion constitutes a part of or the whole of dark matter and decays into photons through the mixing, explaining the 3.5 keV X-ray line signal. Interestingly, the required long lifetime of the hidden axion dark matter can be realized for the QCD axion decay constant at an intermediate scale, if the mixing is sufficiently small. In such a two component dark matter scenario, the primordial density perturbations of the hidden axion can be highly non-Gaussian, leading to a possible dispersion in the X-ray line strength from various galaxy clusters and near-by galaxies. We also discuss how the parallel and orthogonal alignment of two axions affects their couplings to gauge fields. In particular, the QCD axion decay constant can be much larger than the actual Peccei-Quinn symmetry breaking.

  5. International Fusion Materials Irradiation Facility injector acceptance tests at CEA/Saclay: 140 mA/100 keV deuteron beam characterization

    SciTech Connect (OSTI)

    Gobin, R., E-mail: rjgobin@cea.fr; Bogard, D.; Chauvin, N.; Chel, S.; Delferrière, O.; Harrault, F.; Mattei, P.; Senée, F. [Commissariat à l’Energie Atomique et aux Energies Alternatives, CEA/Saclay, DSM/IRFU, 91191-Gif/Yvette (France)] [Commissariat à l’Energie Atomique et aux Energies Alternatives, CEA/Saclay, DSM/IRFU, 91191-Gif/Yvette (France); Cara, P. [Fusion for Energy, BFD Department, Garching (Germany)] [Fusion for Energy, BFD Department, Garching (Germany); Mosnier, A. [Commissariat à l’Energie Atomique et aux Energies Alternatives, CEA/Saclay, DSM/IRFU, 91191-Gif/Yvette (France) [Commissariat à l’Energie Atomique et aux Energies Alternatives, CEA/Saclay, DSM/IRFU, 91191-Gif/Yvette (France); Fusion for Energy, BFD Department, Garching (Germany); Shidara, H. [IFMIF/EVEDA Project Team, Obuchi-Omotedate 2-166, Rokkasho, Aomori (Japan)] [IFMIF/EVEDA Project Team, Obuchi-Omotedate 2-166, Rokkasho, Aomori (Japan); Okumura, Y. [JAEA, Division of Rokkasho BA Project, Obuchi-Omotedate 2-166, Rokkasho, Aomori (Japan)] [JAEA, Division of Rokkasho BA Project, Obuchi-Omotedate 2-166, Rokkasho, Aomori (Japan)

    2014-02-15

    In the framework of the ITER broader approach, the International Fusion Materials Irradiation Facility (IFMIF) deuteron accelerator (2 × 125 mA at 40 MeV) is an irradiation tool dedicated to high neutron flux production for future nuclear plant material studies. During the validation phase, the Linear IFMIF Prototype Accelerator (LIPAc) machine will be tested on the Rokkasho site in Japan. This demonstrator aims to produce 125 mA/9 MeV deuteron beam. Involved in the LIPAc project for several years, specialists from CEA/Saclay designed the injector based on a SILHI type ECR source operating at 2.45 GHz and a 2 solenoid low energy beam line to produce such high intensity beam. The whole injector, equipped with its dedicated diagnostics, has been then installed and tested on the Saclay site. Before shipment from Europe to Japan, acceptance tests have been performed in November 2012 with 100 keV deuteron beam and intensity as high as 140 mA in continuous and pulsed mode. In this paper, the emittance measurements done for different duty cycles and different beam intensities will be presented as well as beam species fraction analysis. Then the reinstallation in Japan and commissioning plan on site will be reported.

  6. Observation of 511 keV peak high count rate in studying (n,x) and (g,x) reactions on terbium

    E-Print Network [OSTI]

    I. Kadenko; N. Dzysiuk

    2011-01-26

    Experimental investigation of (n, x) and (g, x) reactions on Tb-159 with activation technique was carried out. Tb specimens of natural composition were irradiated with (d-d) and (d-t) neutrons using NG-300 neutron generator. Additionally the series of experiments were performed with application of M-30 microtrone as a source of electrons for bremsstrahlung spectra production with end point energies 7.5, 9.5, 11, 11.5, 12, 12.5, 16.5, and 18.5 MeV. Instrumental spectra of Tb specimens were measured with HPGe and Ge(Li) spectrometers. Within the main scope of nuclear reactions research and accurate {\\gamma}-spectrometry of Tb specimens a high count rate in 511 keV {\\gamma}-line peak was observed. The first-priority analysis of Tb specimen impurities was done with further attempts to explain a result of observations with reference to the specific nuclear properties of Tb which could appear due to complex GDR structure. The energy threshold of the process detected was determined around 12.2 MeV. The lower estimate of cross section value for this process was assumed and calculated.

  7. Moiré deflectometry using the Talbot-Lau interferometer as refraction diagnostic for High Energy Density plasmas at energies below 10 keV

    SciTech Connect (OSTI)

    Valdivia, M. P.; Stutman, D.; Finkenthal, M.

    2014-07-15

    The highly localized density gradients expected in High Energy Density (HED) plasma experiments can be characterized by x-ray phase-contrast imaging in addition to conventional attenuation radiography. Moiré deflectometry using the Talbot-Lau grating interferometer setup is an attractive HED diagnostic due to its high sensitivity to refraction induced phase shifts. We report on the adaptation of such a system for operation in the sub-10 keV range by using a combination of free standing and ultrathin Talbot gratings. This new x-ray energy explored matches well the current x-ray backlighters used for HED experiments, while also enhancing phase effects at lower electron densities. We studied the performance of the high magnification, low energy Talbot-Lau interferometer, for single image phase retrieval using Moiré fringe deflectometry. Our laboratory and simulation studies indicate that such a device is able to retrieve object electron densities from phase shift measurements. Using laboratory x-ray sources from 7 to 15 ?m size we obtained accurate simultaneous measurements of refraction and attenuation for both sharp and mild electron density gradients.

  8. IonCCD™ for direct position-sensitive charged-particle detection: from electrons and keV ions to hyperthermal biomolecular ions

    SciTech Connect (OSTI)

    Hadjar, Omar; Johnson, Grant E.; Laskin, Julia; Kibelka, Gottfried; Shill, Scott M.; Kuhn, Ken; Cameron, Chad; Kassan, Scott

    2011-04-01

    A novel charged-particle sensitive, pixel based detector array is described and its usage is demonstrated for a variety of applications, from detection of elemental particles (electrons) to hyper-thermal large biomolecular positive and negative ions including keV light atomic and molecular ions. The array detector is a modified light-sensitive charged coupled device (CCD). The IonCCDTM was engineered for direct charged particle detection by replacing the semi-conductor part of the CCD pixel by a conductor1. In contrast with the CCD, where the semi-conductive pixel is responsible for electron-hole pair formation upon photon bombardment, the IonCCD uses a capacitor coupled to the conductive electrode for direct charge integration. The detector can be operated from atmospheric pressure to high vacuum since no high voltages are needed. The IonCCD, presented in this work is an array of 2126 active pixels with 21 um pixel width and 3 um pixel gap. The detection area is 1.5x51mm2 where 1.5 mm and 51 mm are pixel and detector array length, respectively. The result is a one-dimensional position-sensitive detector with 24 um spatial resolution and 88 % pixel area ratio (PAR). In this work we demonstrate the capabilities and the performance of the detector. For the first time we show the direct detection of 250 eV electrons providing linearity response and detection efficiency of the IonCCD as function of electron beam current. Using positive ions from and electron impact source (E-I), we demonstrate that the detection efficiency of the IonCCD is virtually independent of particle energy [250 eV, 1250 eV], particle impact angle [45o, 90o] and particle flux. By combining the IonCCD with a double focusing sector field of Mattauch-Herzog geometry (M-H), we demonstrate fast acquisition of mass spectra in direct air sniffing mode. A first step towards fast in vivo breath analysis is presented. Detection of hyper-thermal biomolecular ions produced using an electrospray ionization source (ESI) is presented. The IonCCD was used as beam profiler to characterize the beam shape and intensity of 15 eV protonated and deprotonated biomolecular ions at the exit of an RF only collisional quadrupole. We present simultaneous detection of 140 eV doubly protonated biomolecular ions when the IonCCD is combined with the M-H analyzer. The latter, demonstrates the possibility of simultaneous separation and micro-array deposition of biological material using a miniature sector field.

  9. Trends in the cost of efficiency for appliances and consumer electronics

    E-Print Network [OSTI]

    Desroches, Louis-Benoit

    2013-01-01

    appliances and consumer electronics Louis-Benoit Desroches,appliances and consumer electronics have decreased in realappliances and consumer electronics are likely to diminish

  10. Stellar 30-keV neutron capture in 94,96Zr and the 90Zr(gamma,n)89Zr photonuclear reaction with a high-power liquid-lithium target

    E-Print Network [OSTI]

    Tessler, M; Arenshtam, A; Feinberg, G; Friedman, M; Halfon, S; Kijel, D; Weissman, L; Aviv, O; Berkovits, D; Eisen, Y; Eliyahu, I; Haquin, G; Kreisel, A; Mardor, I; Shimel, G; Shor, A; Silverman, I; Yungrais, Z

    2015-01-01

    A high-power Liquid-Lithium Target (LiLiT) was used for the first time for neutron production via the thick-target 7Li(p,n)7Be reaction and quantitative determination of neutron capture cross sections. Bombarded with a 1-2 mA proton beam at 1.92 MeV from the Soreq Applied Research Accelerator Facility (SARAF), the setup yields a 30-keV quasi-Maxwellian neutron spectrum with an intensity of 3-5e10 n/s, more than one order of magnitude larger than present near-threshold 7Li(p,n) neutron sources. The setup was used here to determine the 30-keV Maxwellian averaged cross section (MACS) of 94Zr and 96Zr as 28.0+-0.6 mb and 12.4+-0.5 mb respectively, based on activation measurements. The precision of the cross section determinations results both from the high neutron yield and from detailed simulations of the entire experimental setup. We plan to extend our experimental studies to low-abundance and radioactive targets. In addition, we show here that the setup yields intense high-energy (17.6 and 14.6 MeV) prompt cap...

  11. 200-keV He sup + -ion irradiation effects on the properties of pulsed-laser-deposited YBa sub 2 Cu sub 3 O sub 7 minus x thin films

    SciTech Connect (OSTI)

    Vadlamannati, S. ); England, P.; Stoffel, N.G. Bellcore, Red Bank, New Jersey 07701 ); Findikoglu, A.; Li, Q. ); Venkatesan, T. Bellcore, Red Bank, New Jersey 07701 ); McLean, W.L. )

    1991-03-01

    We report the effects of 200-keV He{sup +}-ion irradiation on the properties of high-quality YBa{sub 2}Cu{sub 3}O{sub 7{minus}{ital x}} thin films made {ital in} {ital situ} by pulsed-laser deposition. There is no significant change in {ital T}{sub {ital c}} or the normal-state resistivity for fluences up to 1{times}10{sup 14} He{sup +}/cm{sup 2}. There is only a small increase in the critical current density {ital J}{sub {ital c}} measured at 60 K for fluences up to 3{times}10{sup 13} He{sup +}/cm{sup 2} and in nonzero magnetic fields. At fluences above 1{times}10{sup 14} He{sup +}/cm{sup 2}, the induced changes are more rapid and have a deleterious effect on the superconducting properties.

  12. Precise validation of neutron cross section data bases using a lead slowing down spectrometer and simulation from 0.1 eV to 40 keV. Methodology and data on thin and thick targets and data bases adjustement

    E-Print Network [OSTI]

    L. Perrot; A. Billebaud; R. Brissot; A. Giorni; D. Heuer; J. -M. Loiseaux; O. Meplan; J. -B. Viano

    2002-01-09

    Research on accelerator driven systems (ADS), related new fuels and their ability for nuclear waste incineration has led to a revival of interest in nuclear cross sections of many nuclides over a large energy range. Discrepancies observed between nuclear data bases require new measurements in several cases. A complete measurement of such cross sections including resonance resolution consists of an extensive beam time experiment associated to a long process of analysis ans validation. With a slowing down spectrometer associated to a pulsed neutron source, it is possible to determine good cross section profile in an energy range from 0.1 eV to 40 keV. These measurements performed at ISN (Grenoble) with neutron source GENEPI requires only small quantities of matter (as small as 0.1 g) and about one day of beam per target.

  13. The Millennium Gas project aims to undertake smoothed-particle hydrodynamic resimulations of the Millennium Simulation, providing many hundred massive galaxy clusters for comparison with X-ray surveys (170 clusters with kTsl > 3 keV). This paper looks at

    E-Print Network [OSTI]

    Thomas, Peter

    . Abstract The Millennium Gas project aims to undertake smoothed-particle hydrodynamic-ray surveys (170 clusters with kTsl > 3 keV). This paper looks at the hot gas and stellar fractions-core systems but are successful in matching the hot gas profiles of non-cool-core clusters. Although

  14. Measurement of the x-ray mass attenuation coefficient and determination of the imaginary component of the atomic form factor of tin over the energy range of 29-60 keV

    SciTech Connect (OSTI)

    Jonge, Martin D. de; Tran, Chanh Q.; Chantler, Christopher T.; Barnea, Zwi; Dhal, Bipin B.; Paterson, David; Kanter, Elliot P.; Southworth, Stephen H.; Young, Linda; Beno, Mark A.; Linton, Jennifer A.; Jennings, Guy [X-Ray Operations and Research, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439 (United States); School of Physics, University of Melbourne, Victoria 3010 (Australia); Australian Synchrotron Project, Major Projects Victoria, 800 Blackburn Road, Clayton, Victoria 3168 (Australia); Chemistry Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439 (United States); BESSRC-CAT, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439 (United States)

    2007-03-15

    We use the x-ray extended-range technique (XERT) [C. T. Chantler et al., Phys. Rev. A 64, 062506 (2001)] to measure the mass attenuation coefficients of tin in the x-ray energy range of 29-60 keV to 0.04-3 % accuracy, and typically in the range 0.1-0.2 %. Measurements made over an extended range of the measurement parameter space are critically examined to identify, quantify, and correct a number of potential experimental systematic errors. These results represent the most extensive experimental data set for tin and include absolute mass attenuation coefficients in the regions of x-ray absorption fine structure, extended x-ray absorption fine structure, and x-ray absorption near-edge structure. The imaginary component of the atomic form factor f{sub 2} is derived from the photoelectric absorption after subtracting calculated Rayleigh and Compton scattering cross sections from the total attenuation. Comparison of the result with tabulations of calculated photoelectric absorption coefficients indicates that differences of 1-2 % persist between calculated and observed values.

  15. State-selective laser photoionization of neutral benzene molecules ejected from keV ion bombarded C{sub 6}H{sub 6}/Ag{l_brace}111{r_brace}

    SciTech Connect (OSTI)

    Meserole, C. A.; Vandeweert, E.; Chatterjee, R.; Chakraborty, B. R.; Garrison, B. J.; Winograd, N.; Postawa, Z.

    1998-12-16

    One-color two-photon ionization spectroscopy was used to probe state-selectively neutral benzene molecules desorbed from a benzene overlayer physisorbed on a Ag{l_brace}111{r_brace} surface upon 8 keV Ar{sup +} bombardment. Time distributions were measured for benzene molecules ejected in the zero level of the molecular ground state and in the first state of the {nu}{sub 6} ' vibration. These distributions are found to show a strong dependence both on the internal energy of the ejected molecules and the degree of coverage of the Ag surface. Up to monolayer coverages, benzene molecules are ejected by direct collisions with Ag particles sputtered from the underlying substrate. Molecules with higher internal energy leave the surface with a distribution shifted towards lower flight times. At multilayer coverages, a second, thermal-like ejection mechanism gains significance. It is suggested that only molecules excited near the benzene-vacuum interface, survive the ejection process without being deexcited.

  16. A=11B (2012KE01)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach HomeA Better Anode Design to Improve Lithium-Ion Batteries PrintA279AJ01) (See8AJ01)0AJ01)

  17. A=11Be (2012KE01)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach HomeA Better Anode Design to Improve Lithium-Ion Batteries PrintA279AJ01)90AJ01) (See Energy

  18. A=11C (2012KE01)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach HomeA Better Anode Design to Improve Lithium-Ion Batteries PrintA279AJ01)90AJ01) (See80AJ01)

  19. A=11F (2012KE01)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach HomeA Better Anode Design to Improve Lithium-Ion Batteries PrintA279AJ01)90AJ01)0AJ01) (Not90AJ01)

  20. A=11N (2012KE01)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach HomeA Better Anode Design to Improve Lithium-Ion Batteries80AJ01) (See the Isobar

  1. A=11O (2012KE01)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach HomeA Better Anode Design to Improve Lithium-Ion Batteries80AJ01) (See the

  2. The solar wind charge-transfer X-ray emission in the 1/4 keV energy range: inferences on Local Bubble hot gas at low Z

    E-Print Network [OSTI]

    D. Koutroumpa; R. Lallement; J. C. Raymond; V. Kharchenko

    2008-12-19

    We present calculations of the heliospheric SWCX emission spectra and their contributions in the ROSAT 1/4 keV band. We compare our results with the soft X-ray diffuse background (SXRB) emission detected in front of 378 identified shadowing regions during the ROSAT All-Sky Survey (Snowden et al. 2000). This foreground component is principally attributed to the hot gas of the so-called Local Bubble (LB), an irregularly shaped cavity of ~50-150 pc around the Sun, which is supposed to contain ~10^6 K plasma. Our results suggest that the SWCX emission from the heliosphere is bright enough to account for most of the foreground emission towards the majority of low galactic latitude directions, where the LB is the least extended. In a large part of directions with galactic latitude above 30deg the heliospheric SWCX intensity is significantly smaller than the measured one. However, the SWCX R2/R1 band ratio differs slightly from the data in the galactic center direction, and more significantly in the galactic anti-centre direction where the observed ratio is the smallest. Assuming that both SWCX and hot gas emission are present and their relative contributions vary with direction, we tested a series of thermal plasma spectra for temperatures ranging from 10^5 to 10^6.5 K and searched for a combination of SWCX spectra and thermal emission matching the observed intensities and band ratios, while simultaneously being compatible with O VI emission measurements. In the frame of collisional equilibrium models and for solar abundances, the range we derive for hot gas temperature and emission measure cannot reproduce the Wisconsin C/B band ratio. We emphasize the need for additional atomic data, describing consistently EUV and X-ray photon spectra of the charge-exchange emission of heavier solar wind ions.

  3. A NEW DETAIL-PRESERVING REGULARITY SCHEME WEIHONG GUO, JING QIN, AND WOTAO YIN

    E-Print Network [OSTI]

    Ferguson, Thomas S.

    those with important details and features such as medical MR and CT images. We propose a novel but suffers from oil-painting artifacts, TGV "selectively regularizes" different image regions at different levels and thus largely avoids oil-painting artifacts. Unlike the wavelet transform, which represents

  4. Provenance Collection in Reservoir Management Workflow Environments Fan Sun, Jing Zhao

    E-Print Network [OSTI]

    Hwang, Kai

    in reservoir engineering applications. Data provenance is metadata that pertains to the history of the data information from application logs in the domain of reservoir engineering. In doing so, we address challenges due to: 1) the lack of a workflow orchestration framework in reservoir engineering and 2

  5. POTENTIAL FLOWS OF VISCOUS AND VISCOELASTIC Daniel D. Joseph, Toshio Funada and Jing Wang

    E-Print Network [OSTI]

    Joseph, Daniel D.

    is developed here is embedded in a variety of fluid mechanics problems ranging from cavitation, capillary as supplemental text in courses on hydrodynamic stability. We have tried to assemble here all the literature

  6. IP Traffic Grooming over WDM Optical Networks Jing Fang and Arun K. Somani

    E-Print Network [OSTI]

    originating from hosts that are IP endpoints. This growth is being fueled by various applications capacity at the end systems. The advent of new services with increasing intelligence and the corresponding WDM to send ATM cells over SONET devices that are connect

  7. Dynamic mechanical and ultrasonic properties of polyurea Jing Qiao a,b,

    E-Print Network [OSTI]

    Nemat-Nasser, Sia

    to hard plastic. Together with its rapid poly- merization and fire, abrasion, and corrosion resistance, polyurea has a myriad of applications in the coating indus- try, e.g. on transportation vehicles, pipelines

  8. Multivariate Visual Explanation for High Dimensional Datasets Scott Barlowe, Tianyi Zhang, Yujie Liu, Jing Yang

    E-Print Network [OSTI]

    Ras, Zbigniew W.

    Multivariate Visual Explanation for High Dimensional Datasets Scott Barlowe, Tianyi Zhang, Yujie at Charlotte djacobs1@uncc.edu ABSTRACT Understanding multivariate relationships is an important task in multivariate data analysis. Unfortunately, existing multivariate vi- sualization systems lose effectiveness

  9. JING ET AL. VOL. XXX ' NO. XX ' 000000 ' XXXX www.acsnano.org

    E-Print Network [OSTI]

    Wang, Zhong L.

    7,8 or electromagnetic9,10 principles to harvest energy from random vibrations,11 wind flow,12 air Case-Encapsulated Triboelectric Nanogenerator for Harvesting Energy from Reciprocating Sliding Motion development of portable electronics and sensor networks.1,2 Mechanisms using piezoelectric,3À6 electro- static

  10. Joint Search by Social and Spatial Proximity Kyriakos Mouratidis, Jing Li, Yu Tang, and Nikos Mamoulis

    E-Print Network [OSTI]

    Mamoulis, Nikos

    scalable algorithms for its processing, and enhance them with elaborate optimizations. Finally, we use real The emergence of social networks (SNs) brings a new era in the organization and browsing of online information into the search. In this paper we propose and study the social and spatial ranking query (SSRQ). SSRQ reports

  11. Automatic Speech Recognition Gerasimos Potamianos,1 Lori Lamel,2 Matthias Wlfel,3 Jing Huang,1 Etienne

    E-Print Network [OSTI]

    acoustic events, such as knocks, door slams, steps, cough, laughter, and others. Note that the problem

  12. Implementation of CMOS Neuron for Robot Motion Control Unit , Jing Yang1

    E-Print Network [OSTI]

    Ayers, Joseph

    ]), engineered muscle which is activated by oLED circuit, and powered by thin film battery, all of which control unit to generate corresponding motion patterns. The motion patterns are then transferred by oLED circuit and the optogenetically engineered muscles that respond to light will produce an undulatory

  13. Jing Xie | Center for Gas SeparationsRelevant to Clean Energy Technologies

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory ofDid you notHeat Pumps HeatTechnologies | Blandine| Blandine| Blandine

  14. J. Fluid Mech. (2011), vol. 672, pp. 6077. c Cambridge University Press 2011 doi:10.1017/S0022112010005860

    E-Print Network [OSTI]

    Balmforth, Neil

    2011-01-01

    of hydraulic fracturing techniques is commonplace in enhancing the recovery of oil and gas (Desroches et al, it is shown how these fronts converge to zero-toughness fracture solutions with a genuine crack tip

  15. Decentralized Inference over Multiple Access Ke Liu, Hesham El Gamal

    E-Print Network [OSTI]

    El-Gamal, Hesham

    inherently calls for utilizing tools from statistical decision theory and communications theory. Earlier collect observation data about a hidden source and communicate relevant statistics to a receiver node medium that provides the physical communication environment for sensor networks. The problem

  16. Particle Swarm Optimization Method in Multiobjective K.E. Parsopoulos

    E-Print Network [OSTI]

    Parsopoulos, Konstantinos

    (PSO) method in Mu|tiobjective Optimi~.a- tion (MO) problems. The ability of PSO to detect Pareto Algorithms are adapted to the PSO framework in order to develop a multi--swarm PSO that can cope effectively of the search space [20]. The Particle Swarm Optimization (PSO) is a Swarm Intel- ligence method that models

  17. Microsoft Word - final 105-KE EECA Notice 8 16

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    an Upcoming 30-day Public Comment Period Engineering EvaluationCost Analysis for 105-K East Reactor Decommissioning The Department of Energy (DOE) is preparing an Engineering...

  18. Razvoj slovenske paremiologije in paremiološke terminologije

    E-Print Network [OSTI]

    Ul?nik, Natalija

    2015-01-01

    The article focuses on terminology referred to paremiology — a science which examines proverbs and related units. It outlines the question of paremiology's scientific autonomy and the problem of defining the basic units ...

  19. Microsoft PowerPoint - KE EIA21.ppt

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming Dry NaturalPrices1Markets See(STEO) Highlights ï‚·Despite

  20. Intravascular atherosclerotic imaging with combined fluorescence and optical coherence tomography probe based on a double-clad fiber combiner

    E-Print Network [OSTI]

    2012-01-01

    combiner Shanshan Liang Arya Saidi Joe Jing Gangjun LiuShanshan Liang, a,b Arya Saidi, b Joe Jing, b Gangjun Liu, b

  1. Scheduling Algorithms for PHEV Charging in Shared Parking Lots Jing Huang, Vijay Gupta and Yih-Fang Huang

    E-Print Network [OSTI]

    Gupta, Vijay

    in public infrastructure, such as shared parking lots in commercial office campuses and shopping malls) and space (for instance, in large office parking lots, many PHEVs will be clustered together for charging). Thus, even though the generation system may be able to supply enough energy to charge the PHEVs

  2. Detecting Stock Market Fluctuation from Stock Network Structure Variation Jing Liu, Chi K. Tse and Keqing He

    E-Print Network [OSTI]

    Tse, Chi K. "Michael"

    trading period under study. The window moves at a 1-trading-day step. The power-law exponent is determined that were traded from January 1, 2000 to December 31, 2004. The construction of the network is based on cross correlation between the time series of the closing prices (or price returns) over a fixed trading

  3. Generating stationary entangled states in superconducting qubits Jing Zhang,1,2,* Yu-xi Liu,1,3

    E-Print Network [OSTI]

    Nori, Franco

    of Physical and Chemical Research (RIKEN), Wako-shi, Saitama 351-0198, Japan 2 Department of Automation- tor 23 , or a transmission line resonator 24­26 . The main merit of indirect coupling is that any two production strategies 29­31 . Most of the proposed stationary entangle- ment production strategies utilize

  4. UBC Social Ecological Economic Development Studies (SEEDS) Student Report An Investigation into South Campus Stormwater Catchment and Filtration Technologies

    E-Print Network [OSTI]

    into South Campus Stormwater Catchment and Filtration Technologies Jing Ming Qiu, Jing Wen Lu, Lichen Yan;1 An Investigation into South Campus Stormwater Catchment and Filtration Technologies Jing Ming Qiu Jing Wen Lu to save water consumption and be environmentally friendly, three sustainable stormwater catchment systems

  5. Bridge Damage and Repair Costs from Hurricane Katrina Jamie Padgett1

    E-Print Network [OSTI]

    Padgett, Jamie Ellen

    Bridge Damage and Repair Costs from Hurricane Katrina Jamie Padgett1 ; Reginald DesRoches2 ; Bryant to repair or replace the bridges damaged during the hurricane is estimated at over $1 billion. This paper describes the observed damage patterns to bridges, including damage attributed to storm surge, wind, impact

  6. Formation Word/ExcelFormation Word/Excel Prsentateur:Prsentateur

    E-Print Network [OSTI]

    Vellend, Mark

    11 Formation Word/ExcelFormation Word/Excel Présentateur:Présentateur: Christian Desrochers partir de Word 2002. De légères différences peuventWord 2002. De légères différences peuvent survenir avec une version de Wordsurvenir avec une version de Word différente.différente. #12;33 Objectifs de la

  7. Bridge Seismic Retrofitting Practices in the Central and Southeastern United States

    E-Print Network [OSTI]

    Padgett, Jamie Ellen

    ; Reginald DesRoches, M.ASCE2 ; and Jamie E. Padgett, A.M.ASCE3 Abstract: This paper conducts a detailed: 10.1061/ ASCE BE.1943-5592.0000128 CE Database subject headings: Bridges; Earthquakes; Rehabilitation through or end up in the region, it is estimated that over $1.58 trillion dollars of freight originate

  8. S|,M~TIC AND Sg~A6TIC ~ 1 ~ OF ~ FUNCTION Keh-Yih SU* and Jing-Shin CHANG**

    E-Print Network [OSTI]

    of Electrical Engineering National Tsing Hua University, Hsinehu, Taiwan, R.O.C. **BTC R&D Center, P~D Road If

  9. A Dual-Level Matching Algorithm for 3-Stage Clos-Network Packet Switches H. Jonathan Chao, Soung Y. Liew, and Zhigang Jing

    E-Print Network [OSTI]

    Chao, Jonathan

    A Dual-Level Matching Algorithm for 3-Stage Clos-Network Packet Switches H. Jonathan Chao, Soung Y Clos-network packet switches, called d-MAC. Using a two-level matching algorithm, namely module status of the switch, while the port-level matching is responsible for determining port-to-port matching

  10. Solution-Phase, Triangular Ag Nanotriangles Fabricated by Nanosphere Lithography Amanda J. Haes,, Jing Zhao, Shengli Zou, Christopher S. Own, Laurence D. Marks,

    E-Print Network [OSTI]

    Marks, Laurence D.

    be described accurately with classical electromagnetic theory, which makes possible the use of theory to guide and optical properties of Ag nanoparticles have been characterized. Mie theory and the Discrete Dipole and their observed optical properties. An understanding of these properties holds both fundamental and practical

  11. Filament Eruption after the Onset of the X1.5 Flare on 2005 September 13 Haimin Wang, Chang Liu, Ju Jing, and Vasyl Yurchyshyn

    E-Print Network [OSTI]

    Filament Eruption after the Onset of the X1.5 Flare on 2005 September 13 Haimin Wang, Chang Liu, Ju Erupting filaments usually play the role as the initial driver of flaring process pre- ceding September 13, a filament at the boundary of the NOAA AR 0808 erupted 13 minutes after the flare onset at 19

  12. Spring 2014 Research Meeting of TCCS List of Attendees

    E-Print Network [OSTI]

    Texas at Austin, University of

    William Burnett Young Ho Cha Yaofeng He Charlie Jing Jonathan Liu Jaewoo Park Haiyong Quan Saudi Aramco

  13. Application of the ``Ke'' model to open channel flows in a magnetic field

    E-Print Network [OSTI]

    Abdou, Mohamed

    of turbulence) by a strong magnetic field. Based on the experimental data, the laminarization in channel flows-133 Engineering IV, Los Angeles, CA 90095-1597, USA b Department of Nuclear Engineering, Kyoto University, Japan. The model coefficients have been tuned by a computer optimization using available experimental data

  14. AN EXTREME GRAVITATIONALLY REDSHIFTED IRON LINE AT 4.8 KeV IN Mrk 876

    SciTech Connect (OSTI)

    Bottacini, Eugenio; Orlando, Elena; Moskalenko, Igor [W. W. Hansen Experimental Physics Laboratory and Kavli Institute for Particle Astrophysics and Cosmology, Stanford University (United States); Greiner, Jochen [Max-Planck-Institut für extraterrestrische Physik, Giessenbachstrasse 1, D-85748 Garching (Germany); Ajello, Marco [Department of Physics and Astronomy, Clemson University, Clemson, SC 29634-0978 (United States); Persic, Massimo, E-mail: eugenio.bottacini@stanford.edu [INAF-Trieste, via G.B.Tiepolo 11, I-34143 Trieste (Italy)

    2015-01-01

    X-ray spectral lines at unforeseen energies are important because they can shed light on the extreme physical conditions of the environment around the supermassive black holes of active galactic nuclei (AGNs). Mrk 876 displays such a line at 4.80{sub ?0.04}{sup +0.05} rest-frame energy. A possible interpretation of its origin can be found in the hotspot scenario. In this scenario, the primary radiation from a flare in the hot corona of an AGN illuminates a limited portion of the accretion disk that emits by fluorescence. In this context, the line can represent an extreme gravitationally redshifted Fe line originating on the accretion disk below six gravitational radii from a rotating supermassive black hole. The correct estimate of the line significance requires a dedicated approach. Based on an existing rigorous approach, we have performed extensive Monte Carlo simulations. We determine that the line is a real feature at a ?99% confidence level.

  15. Multi-keV x-ray sources from metal-lined cylindrical hohlraums...

    Office of Scientific and Technical Information (OSTI)

    United States Language: English Subject: 36 MATERIALS SCIENCE; CALCULATION METHODS; COATINGS; CONVERSION; COPPER; CYLINDRICAL CONFIGURATION; EMISSIVITY; GERMANIUM; KEV RANGE;...

  16. Multi-source Skyline Query Processing in Road Networks Ke Deng Xiaofang Zhou Heng Tao Shen

    E-Print Network [OSTI]

    Zhou, Xiaofang

    to Geographical Information Systems, to support de- cision making in the areas such as intelligent transport sys to physically move from a to b along a spatial network (e.g., roads or water systems) or on/near a terrain

  17. Smoothing Spline Semi-parametric Nonlinear Regression Models Yuedong Wang and Chunlei Ke

    E-Print Network [OSTI]

    Wang, Yuedong

    coefficients, projection pursuit, single index, multiple index and shape invariant models as special cases situations in a unified fashion. We develop a unified estimation procedure based on minimizing penalized the R Hydrae data. We thank the editor, the associate editor and a referee for constructive comments

  18. Privacy-Preserving Data Mashup Noman Mohammed Benjamin C. M. Fung Ke Wang

    E-Print Network [OSTI]

    Fung, Benjamin C. M.

    ­26, 2009, Saint Petersburg, Russia. Copyright 2009 ACM 978-1-60558-422-5/09/0003 ...$5.00 Our contribu on.g., a browser or an applet). This is very different from the traditional web portal which simply di- vides a web

  19. Caihuan Ke K. N. Yu P. K. S. Lam Wen-Xiong Wang

    E-Print Network [OSTI]

    Yu, Peter K.N.

    may be present in the low level aqueous radioactive wastes discharged from nuclear fa- cilities stations, fuel reprocessing plants and waste dis- posal installations, has resulted in the release of many. Understanding the biological fate and transport of these radionuclides in aquatic environments is essen- tial

  20. Tezaver slovenskega ljudskega jezika na Koroškem – dokaz živosti graške slavistike

    E-Print Network [OSTI]

    Karni?ar, Ludvik

    2010-02-01

    The article deals with the long-term dialectological project of creating a lexical inventory of the Slovene Volkssprache in Carinthia and presents some results of this project: the work on the Thesaurus (as of 2009 six volumes from A to K have been...Prispevek obravnava dolgoro?ni projekt inventarizacije slovenskega ljudskega jezika na avstrijskem Koroškem, ki je stekel pred tridesetimi leti na Inšitutu za slavistiko v Gradcu, in prikazuje v prvem delu napredovanje tezavra (do leta 2009 so bili izdani zvezki A do K, v pripravi je sedmi zvezek od L do M), v drugem pa kartografiranje posameznih diatopnih sinonimov na avstrijskem Koroškem....

  1. Efficient laser-induced 6 - 8 keV x-ray production from iron...

    Office of Scientific and Technical Information (OSTI)

    C; Colvin, J; Gammon, S; Jaquez, J; Satcher, J; Fournier, K B 70 PLASMA PHYSICS AND FUSION Abstract not provided Lawrence Livermore National Laboratory (LLNL), Livermore, CA...

  2. Tuning a RANS k-e model for jet-in-crossflow simulations.

    SciTech Connect (OSTI)

    Lefantzi, Sophia; Ray, Jaideep; Arunajatesan, Srinivasan; DeChant, Lawrence Justin

    2013-09-01

    We develop a novel calibration approach to address the problem of predictive ke RANS simulations of jet-incrossflow. Our approach is based on the hypothesis that predictive ke parameters can be obtained by estimating them from a strongly vortical flow, specifically, flow over a square cylinder. In this study, we estimate three ke parameters, C%CE%BC, Ce2 and Ce1 by fitting 2D RANS simulations to experimental data. We use polynomial surrogates of 2D RANS for this purpose. We conduct an ensemble of 2D RANS runs using samples of (C%CE%BC;Ce2;Ce1) and regress Reynolds stresses to the samples using a simple polynomial. We then use this surrogate of the 2D RANS model to infer a joint distribution for the ke parameters by solving a Bayesian inverse problem, conditioned on the experimental data. The calibrated (C%CE%BC;Ce2;Ce1) distribution is used to seed an ensemble of 3D jet-in-crossflow simulations. We compare the ensemble's predictions of the flowfield, at two planes, to PIV measurements and estimate the predictive skill of the calibrated 3D RANS model. We also compare it against 3D RANS predictions using the nominal (uncalibrated) values of (C%CE%BC;Ce2;Ce1), and find that calibration delivers a significant improvement to the predictive skill of the 3D RANS model. We repeat the calibration using surrogate models based on kriging and find that the calibration, based on these more accurate models, is not much better that those obtained with simple polynomial surrogates. We discuss the reasons for this rather surprising outcome.

  3. UPDATE ON THE DEVELOPMENT OF 120-keV MULTI-MEGAWATT NEUTRAL BEAM SOURCE

    E-Print Network [OSTI]

    Haughian, J.M.

    2010-01-01

    hydrogen atmo- sphere using a broad melting range (950°C liquidus - 900°C solidus) filler composed of 25% palladium,

  4. Evaluation of structural issues related to isolation of the 100-KE/100-KW discharge chute

    SciTech Connect (OSTI)

    Winkel, B.V.; Hyde, L.L.

    1995-03-10

    The issue of excessive post-seismic leakage in the discharge chute of the K East and K West fuel storage basins was resolved by designing isolation barriers to maintain basin water levels if the discharge chute should drain. This report addresses the structural issues associated with isolation of the discharge chute. The report demonstrates the structural adequacy of the components associated with chute isolation for normal and seismic loading. Associated issues, such as hardware drop accidents and seismic slosh heights are also addressed.

  5. Guangdong ZhongKe Tianyuan Regeneration Engineering Co Ltd ZKTY | Open

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar2-0057-EA Jump to:ofEniaElectricHydroLegalAltoOlhoInformationEnergy

  6. Hunan Chuangke Silicon Industry Co Ltd aka Chuang Ke Silicon or CK Silicon

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar2-0057-EA JumpDuimen RiverScoring Tool JumpHuaningXindaElectricChendian| Open

  7. Multi-keV x-ray sources from metal-lined cylindrical hohlraums (Journal

    Office of Scientific and Technical Information (OSTI)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfate Reducing(JournalspectroscopyReport)Fermentativea StochasticArticle) | SciTech Connect

  8. Titanium and germanium lined hohlraums and halfraums as multi-keV X-ray

    Office of Scientific and Technical Information (OSTI)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory of rare Kaon and Pion decaysArticle) |errors(Technicalof photoactive

  9. Titanium and germanium lined hohlraums and halfraums as multi-keV X-ray

    Office of Scientific and Technical Information (OSTI)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory of rare Kaon and Pion decaysArticle) |errors(Technicalof photoactiveradiators

  10. GuangZhou ZhongKe HengYuan Energy Tenchnology Co Ltd ZKenergy | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LIST OFAMERICA'SHeavy ElectricalsFTL SolarGate SolarGijeonWindNewPortocarrio S

  11. Converge-Cast: On the Capacity and Delay Xinbing Wang1,2, Luoyi Fu1, Xiaohua Tian1, Yuanzhe Bei1, Qiuyu Peng1, Xiaoying Gan1, Hui Yu1, Jing Liu1

    E-Print Network [OSTI]

    Wang, Xinbing

    1 Converge-Cast: On the Capacity and Delay Tradeoffs Xinbing Wang1,2, Luoyi Fu1, Xiaohua Tian1 define an ad hoc network where multiple sources transmit packets to one destination as Converge-Cast) for both strategies. Index Terms--ConvergeCast, Capacity, Delay 1 INTRODUCTION Converge-cast network

  12. Two Phase Dynamics as the Origin to: 0.25 keV and 0.1 keV X-ray Diffuse Backgrounds, CMB, Global Quantized Redshift, 10 Mpc Space distributions and 30 Myr Cycles at Earth Phenomena

    E-Print Network [OSTI]

    Eduardo del Pozo Garcia

    2015-02-25

    An Alternative to explain the origin of matter-background connections from the paper "Do Cosmic Backgrounds Cyclical Renew by Matter and Quanta Emissions?..." proposed: A sequence of discontinuous small changes of light speed in time as the cause, which provoke that criticality processes take place every 26-30 million years. Then, matter particles and quanta reach at one threshold value, and are compelled to reorganize their internal energy and make emissions that later becomes in current cosmic backgrounds. The small discontinues relative decreasing of c of about 10 -5) should do some small effects on planet and living bodies. Cyclic small reorganization of matter particles is consider as the astrophysical origin of Earth cyclic catastrophes. And at space global distribution: quantized redshift, change of galaxy fractal distribution at 10 Mpc scale, galaxy average luminosity and the luminosity fluctuation of galaxy pairs are enhanced out to separations near 10 Mpc. Also proposed: Like the Universe is observed flat in distance and time, the gravitational constant G might decrease with time, which may originate the Earth orbit eccentricity cycle of 100000 yr and, provoke the former mentioned sequence of c decrease in time. And, every 6 million years, the accumulation of G relative decrease of about 10-5 in G compelled space-time to reach at one threshold value that, trigger small relative decrease of light speed c of about 10-5 cyclically. This is interpreted as the Universe has two dynamical phases following one each other cyclically with intervals of 26-30 million years respectively: One of about 0.1 million years, called "activation phase", at which the critical processes take place, follows by longer "inhibition phase". The present approach indicates the existence of a subtle non linear dynamics, which could also contribute to the origin of galaxy fractal distribution.

  13. Voltage-controlled entanglement and quantum-information transfer...

    Office of Scientific and Technical Information (OSTI)

    external gate voltage in our schemes. Moreover, proposed schemes are robust against the noise of system parameters. Authors: Lue Xinyou ; Zheng Lili 1 ; Wu, Jing 2 ; Zhan...

  14. The Electromechanical Responses of Suspended Graphene Ribbons for Electrostatic Discharge Applications

    E-Print Network [OSTI]

    Zhang, Wei

    2015-01-01

    Zhi-Min Liao, Jian-Xin Zhou, Yang-Bo Zhou, Han-Chun Wu, Rui Zhang, Guangyin Jing, Jun Xu, Xiaosong Wu, Wanlin Guo,

  15. Department of Mathematics Seminars and Colloquia April 17–21 ...

    E-Print Network [OSTI]

    Denton Brown

    1910-60-41

    Apr 17, 2006 ... Bioinformatics/Statistical Genomics Seminar. Tuesday. April 18. Dr. Jing Li, Case Western Reserve University. “Haplotype-based Linkage ...

  16. Optimizing Morphology of Bulk Heterojunction Polymer Solar Cells

    E-Print Network [OSTI]

    Gao, Jing

    2014-01-01

    Heterojunction Polymer Solar Cells A dissertation submittedBulk Heterojunction Polymer Solar Cells by Jing Gao Doctorheterojunction polymer solar cells is profoundly influenced

  17. Gaussian packet pre{stack depth migration Department of Geophysics, Charles University, Ke Karlovu 3, 121 16 Praha 2, Czech

    E-Print Network [OSTI]

    Cerveny, Vlastislav

    Gaussian packet pre{stack depth migration Karel #20; Z#19;a#20;cek Department of Geophysics method | the Gaussian packet pre{stack depth migration. The advantages over the methods based on Gaussian pre{stack depth migration is especially suitable for a target{oriented imaging. Key words Gaussian

  18. 2009 IEEE INTERNATIONAL CONFERENCE ON NATURAL LANGUAGE PROCESSING AND KNOWLEDGE ENGINEERING (IEEE NLP-KE'09) CASSIOPEIA

    E-Print Network [OSTI]

    Branco, António Horta

    of a model called Cassiopeia, whose aim is to allow for knowledge discovery in textual bases in distinct and domains. The Cassiopeia model uses the process of clusterization to obtain this knowledge, thereby dimensionality. In order to circumvent this, the Cassiopeia model uses the summarization process to reduce

  19. UBC Social Ecological Economic Development Studies (SEEDS) Student Report Kurtis (Ke Wei) Chang, Presley Jang, Segal Au, Yang Li

    E-Print Network [OSTI]

    , and In general this report recommends Green or Eco-Friendly Branded Cleaners to be the most sustainable cleaners.2.1 General, Non-Green Cleaners 4 2.2.2 Green/Eco-Friendly Branded Cleaners 5 2.2.3 All-Natural Commercial.1.1 Neutral Chemicals 8 3.1.2 Harmful Chemicals 8 3.2 Green/Eco-Friendly Branded Cleaners 9 3.1.1 Neutral

  20. Application-Tailored Database Systems: a Case of Aspects in an Embedded Aleksandra Tesanovic Ke Sheng Jorgen Hansson

    E-Print Network [OSTI]

    Application-Tailored Database Systems: a Case of Aspects in an Embedded Database Aleksandra languages to the database domain. Our focus is on embedded database systems, as a represen- tative for a class of database systems. We show, by an- alyzing and re-engineering one commercial well-known embedded

  1. The 2-79 keV X-ray Spectrum of the Circinus Galaxy with NuSTAR...

    Office of Scientific and Technical Information (OSTI)

    College Park Caltech, JPL ESA, Madrid Concepcion U. Yale Ctr. Astron. Astrophys. NASA, Goddard less Publication Date: 2014-11-20 OSTI Identifier: 1165906 Report...

  2. INTEGRAL Cross-calibration Status: Crab observations between 3 keV and 1 MeV

    E-Print Network [OSTI]

    E. Jourdain; D. Gotz; N. J. Westergaard; L. Natalucci; J. P. Roques

    2008-10-03

    We present results of Crab observations by the INTEGRAL instruments. A simultaneous fit allows us to demonstrate that INTEGRAL provides reliable spectra over its wide energy range.

  3. Cross Language Text Categorization Using a Bilingual Lexicon Ke Wu, Xiaolin Wang and Bao-Liang Lu

    E-Print Network [OSTI]

    Lu, Bao-Liang

    200240, China {wuke,arthur general,bllu}@sjtu.edu.cn Abstract With the popularity of the Internet text categorization. To my knowl- edge, there is little research on using a bilingual lex- icon alone is named as CLNBC- D. The other method is to employ an EM algorithm to deduce the probabilistic lexicon

  4. Monochromatic focusing of subpicosecond x-ray pulses in the keV range T. Missalla, I. Uschmann,a)

    E-Print Network [OSTI]

    von der Linde, D.

    picosecond by using spherically or toroidally bent crystals is presented. The spectral, spatial, and time-dependent properties of focusing by two-dimensional bent crystals are calculated by considering geometrical effects obtained from a von Ha´mos spectrometer and two-dimensional bent crystals are compared and found in good

  5. Holographic characterization of individual colloidal spheres' porosities Fook Chiong Cheong, Ke Xiao, David J. Pine, and David G. Grier

    E-Print Network [OSTI]

    Grier, David

    ­ plications as diverse as catalysis, medical diagnostics, and photonics. Even as many applications advance to, such characterization methods as mercury adsorption porosimetry, nitrogen isotherm porosimetry, transmission electron microscopy [1, 2] in which individual colloidal spheres are illuminated by the collimated beam from a fiber

  6. Holographic characterization of individual colloidal spheres' porosities Fook Chiong Cheong, Ke Xiao, David J. Pine, and David G. Grier

    E-Print Network [OSTI]

    Grier, David

    - plications as diverse as catalysis, medical diagnostics, and photonics. Even as many applications advance to, such characterization methods as mercury adsorption porosimetry, nitrogen isotherm porosimetry, transmission electron microscopy [1, 2] in which individual colloidal spheres are illuminated by the collimated beam from a fiber

  7. ELECTRON COLLISIONAL DETACHMENT PROCESSES FOR A 250 keV D- ION BEAM IN A PARTIALLY IONIZED HYDROGEN TARGET

    E-Print Network [OSTI]

    Savas, S.E.

    2010-01-01

    l * o f the electron stream energy. As a result of theelectron stream, that - 11 of the primary electrons energy

  8. Isotopic Mo Neutron Total Cross Section Measurements in the Energy Range 1 to 620 keV

    E-Print Network [OSTI]

    Danon, Yaron

    are of particular importance because stable Mo isotopes can be found in significant concentrations in a nuclear fuel, fuel cladding, and most importantly as an advanced nuclear fuel in the form of U-Mo [2, 3 burst width. More informa- tion on the detector can be found in Reference [1]. Highly-enriched metallic

  9. INELASTIC PROCESSES IN 0.11000 keV/u COLLISIONS OF Ne q+ (q=710) IONS WITH ATOMIC HYDROGEN

    E-Print Network [OSTI]

    and engineering study of burning plasmas. Therefore, with the production of significant quantities of fusion­product helium, and significant fusion energy, it is necessary to consider how to exhaust this helium ash, how

  10. Measurements of relativistic effects in collective Thomson scattering at electron temperatures less than 1 keV

    E-Print Network [OSTI]

    Ross, James Steven

    2010-01-01

    Thomson scattering fom inertial-confinement-fusion hohlraumpropagation through inertial confinement fusion hohlraumment Fusion Plasmas Inertial confinement fusion (ICF) is the

  11. PHYSICAL REVIEW B 85, 033405 (2012) Implantation of keV-energy argon clusters and radiation damage in diamond

    E-Print Network [OSTI]

    Nordlund, Kai

    2012-01-01

    of advantages for the modification of surfaces, for example, for ultrashallow junction formation,1,4,5 infusion

  12. E0 = 20 keV EDS records the entire spectrum. It is very appealing to directly and

    E-Print Network [OSTI]

    / (dE/ds) dE E0 Ec = fluorescence yield NA = Avogadro's number = density Ci = mass concentration of i

  13. 12.6 keV Kr K-alpha X-ray Source For High Energy Density Physics...

    Office of Scientific and Technical Information (OSTI)

    13-16), based on the observed ratio of Kalpha to Kbeta. Kr gas jets provide a debris-free high energy Kalpha source for time-resolved diagnosis of dense matter. Authors:...

  14. Edge Subdivision Schemes and the Construction of Smooth Vector Fields Ke Wang Weiwei Yiying Tong Mathieu Desbrun Peter Schrder

    E-Print Network [OSTI]

    Frey, Pascal

    . Design of tan- gent vector fields is made particularly easy with this machinery as we demonstrate. CR-Aided Engineering-- Computer-aided design (CAD) Keywords: Subdivision, Discrete Exterior Calculus, Discrete], and shading [Schlick 1994]. In particular the design of vector fields is greatly facili- tated

  15. o ptoelectro n i c torn p utati on of waveletli ke-based George W. Rogers

    E-Print Network [OSTI]

    Priebe, Carey E.

    of Mead1 displays many features of human retinal processing . Two key features of interest here into various regions based on texture. This selective segmentation process has applications to both medical and satellite image processing. In this paper, we detail an approach to this selective segmentation process

  16. Demonstration of a 13 keV Kr K-shell X-Ray Source at the National Ignition

    Office of Scientific and Technical Information (OSTI)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfate Reducing BacteriaConnectlaser-solid interaction (Journal Article)(JournalCentralFDR

  17. Demonstration of a 13 keV Kr K-shell X-Ray Source at the National Ignition

    Office of Scientific and Technical Information (OSTI)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfate Reducing BacteriaConnectlaser-solid interaction (Journal Article)(JournalCentralFDRFacility

  18. 12.6 keV Kr K-alpha X-ray Source For High Energy Density Physics

    Office of Scientific and Technical Information (OSTI)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield MunicipalTechnicalInformation4563 LLNL Small-scale Friction SensitivityvExperiments (Conference) |

  19. 12.6 keV Kr K-alpha X-ray Source For High Energy Density Physics

    Office of Scientific and Technical Information (OSTI)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield MunicipalTechnicalInformation4563 LLNL Small-scale Friction SensitivityvExperiments (Conference)

  20. Efficient laser-induced 6 - 8 keV x-ray production from iron oxide aerogel

    Office of Scientific and Technical Information (OSTI)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfate Reducing(Journal Article) | SciTech(Journal Article) | SciTech ConnectanApplications*ofand

  1. Efficient laser-induced 6-8 keV x-ray production from iron oxide aerogel

    Office of Scientific and Technical Information (OSTI)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfate Reducing(Journal Article) | SciTech(Journal Article) | SciTech

  2. Search for 14.4 keV solar axions from M1 transition of Fe-57 with CUORE

    Office of Scientific and Technical Information (OSTI)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail. (Conference) | SciTechsaturated

  3. Search for 14.4 keV solar axions from M1 transition of Fe-57 with CUORE

    Office of Scientific and Technical Information (OSTI)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail. (Conference) | SciTechsaturatedcrystals (Journal Article) | SciTech Connect

  4. Simulation study of 3-5 keV x-ray conversion efficiency from Ar K-shell

    Office of Scientific and Technical Information (OSTI)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail. (Conference)Feedback System in the CERN SPS (Conference) | SciTechCouplinginvs. Ag

  5. Efficient laser-induced 6 - 8 keV x-ray production from iron oxide aerogel

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would like submitKansas Nuclear Profile 2010MesoscopyStaffEfficiency ExchangeStartupand

  6. Cover Letter Title Page (WITH Author Details)

    E-Print Network [OSTI]

    Washington at Seattle, University of

    Accessibility Impacts of China's High-Speed Rail Network Jing Caoa,b Ph.D. Student Tel: (206) 849-9786, +86's high-speed rail at macro or national level. >Spatial distributions of accessibility measures under Impacts of China's High-Speed Rail Network Jing Cao, Xiaoyue Cathy Liu, Yinhai Wang* , Qingquan Li

  7. Division of IT University of Maryland Quick Guide: Free Image and Screen Capture Tools

    E-Print Network [OSTI]

    Yorke, James

    and Screen Capture Tools Two free screen capture tools are currently in use tools. Using Jing for Image and Screen Capture Jing is a free, cross-platform tool that is a useful aid in creating images for "how-to" documentation

  8. Max-Planck-Institut f ur Mathematik

    E-Print Network [OSTI]

    ­qubit and three­qubit Schmidt­Correlated states by Ming­Jing Zhao, Zong­Guo Li, Bo Li, Shao­Ming Fei, Zhi­Xi Wang­Correlated states Ming­Jing Zhao 1 , Zong­Guo Li 2 , Bo Li 1 , Shao­Ming Fei 1,3 , Zhi­Xi Wang 1 , and Xian­Qing Li

  9. fur Mathematik in den Naturwissenschaften

    E-Print Network [OSTI]

    -qubit and three-qubit Schmidt-Correlated states by Ming-Jing Zhao, Zong-Guo Li, Bo Li, Shao-Ming Fei, Zhi-Xi Wang-Correlated states Ming-Jing Zhao1 , Zong-Guo Li2 , Bo Li1 , Shao-Ming Fei1,3 , Zhi-Xi Wang1 , and Xian-Qing Li-Jost3

  10. CHEN ET AL. VOL. 5 ' NO. 10 ' 83838390 ' 2011 www.acsnano.org

    E-Print Network [OSTI]

    Zhou, Chongwu

    Nanowires and Their Application for Energy Storage Haitian Chen,,§ Jing Xu,,§ Po-chiang Chen, Xin Fang, Jing American Chemical Society Bulk Synthesis of Crystalline and Crystalline Core/Amorphous Shell Silicon of size and dimension on its physical properties.1À5 Silicon nano- wire has been exploited for its

  11. Fax +41 61 306 12 34 E-Mail karger@karger.ch

    E-Print Network [OSTI]

    Kalueff, Allan V.

    of Tampere, c Department of Clinical Chemistry, Tampere University Hospital, Tampere, Finland ence between Audiology Jing Zou Department of Otolaryngology, School of Medicine University of Tampere, FM1, 3rd Floor, Biokatu 6 FI­33520 Tampere (Finland) Tel. +358 3 3116 4129, Fax +358 3 3551 771, E-Mail Jing

  12. University of Alberta REAL-TIME PROCESSING FOR

    E-Print Network [OSTI]

    Joseph, Dileepan

    University of Alberta REAL-TIME PROCESSING FOR LOGARITHMIC CMOS IMAGE SENSORS by Jing Li A thesis Engineering c Jing Li Spring 2012 Edmonton, Alberta Permission is hereby granted to the University of Alberta form, the University of Alberta will advise potential users of the thesis of these terms. The author

  13. Fourier-Resolved Spectroscopy of AGN using XMM-Newton data: I. The 3-10 keV band results

    E-Print Network [OSTI]

    I. E. Papadakis; Z. Ioannou; D. Kazanas

    2007-01-29

    We present the results from the Fourier Resolved Spectroscopy of archival XMM-Newton data of five AGN, namely, Mrk 766, NGC 3516, NGC 3783, NGC 4051 and Ark 564. This work supplements the earlier study of MCG-6-30-15 as well as those of several Galactic Black Hole Candidate sources. Our results exhibit much larger diversity than those of Galactic sources, a fact we attribute to the diversity of their masses. When we take into account this effect and combine our results with those from Cyg X-1, it seems reasonable to conclude that, at high frequencies, the slope of the Fourier-resolved spectra in accreting black hole systems decreases with increasing frequency as proportional to f^{-0.25}, irrespective of whether the system is in its High or Low state. This result implies that the flux variations in AGN are accompanied by complex spectral slope variations as well. We also find that the Fe Ka line in Mrk 766, NGC 3783 and NGC 4051 is variable on time scales ~day - 1 hour. The iron fluorescence line is absent in the spectra of the highest frequencies,and there is an indication that, just like in Cyg X-1, the equivalent width of the line in the Fourier-resolved of AGN decreases with increasing frequency.

  14. ANALYSIS OF THE 6Li(n, t) 03B1 REACTION OVER THE ENERGY RANGE 14 TO 3 900 keV

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    of the S-matrix theory of nuclear reactions. A parametric expression is obtained. A 3/2- level is located-matrix theory [11

  15. Near-Intrinsic Energy Resolution for 30 to 662 keV Gamma Rays in a High Pressure Xenon Electroluminescent TPC

    E-Print Network [OSTI]

    Català, J.M.

    2014-01-01

    The search for neutrinoless double beta decay, Riv. NuovoSearch for Neutrinoless Double-Beta Decay in Xe Xe with EXO-

  16. 2. Od Scheme ke Common Lispu Studijni cile: !elem tto !sti je poskytnout u"ivatel#m jazyka Scheme prvn infor-

    E-Print Network [OSTI]

    Krupka, Michal

    . Za!ínající programátor v Common Lispu se pohybuje roz- sáhl'm a nep$ehledn'm terénem, ve kterém se z°uvodce studiem Nep$esnost ve vyjad$ování vede k nep$esnosti sd&lení. Nep$esné pochopení zá- klad# mívá v

  17. D- PRODUCTION BY CHARGE TRANSFER OF 0.3-10 keV D+, D0, AND D- IN CESIUM, RUBIDIUM, AND SODIUM VAPOR TARGETS

    E-Print Network [OSTI]

    Schlachter, A.S.

    2013-01-01

    They obtained large o- yields in cesium vapor using a HallI /Q CABR . .. ·l A u b KWS Cesium e rg y ( k XBL803-469or o- incident, 60 for both cesium and sodium vapor targets.

  18. Beryllium and Graphite High-Accuracy Total Cross-Section Measurements in the Energy Range from 24 to 900 keV

    E-Print Network [OSTI]

    Danon, Yaron

    cross section and has been used as a neutron reflector in compact high flux reactors such as the Ad- vanced Test Reactor1 ~ATR!. Because of its low atomic mass, beryllium can also be used as a moderator, and its light weight makes it favorable in space applications.1 Beryllium also has applications in fusion

  19. On Computing the Utility of a Network of Devices W. Ke, P. Basu, S. Abu Ayyash, and T.D.C. Little

    E-Print Network [OSTI]

    Little, Thomas

    .g., a cellphone carries a phone book and a PDA carries an addressbook with cellphone numbers. During the same time is computational power, storage capacity or communication capacity, apart from any specific host. Proposals

  20. Absolute L-shell ionization and X-ray production cross sections of Lead and Thorium by 16-45 keV electron impact

    E-Print Network [OSTI]

    Rahangdale, H V; De, S; Santos, J P; Mitra, D; Guerra, M; Saha, S

    2015-01-01

    The absolute L subshell specific electron impact ionization cross sections near the ionization threshold (16 Thorium are obtained from the measured L X-ray production cross sections. Monte Carlo simulation is done to account for the effect of the backscattered electrons and the final experimental results are compared with calculations performed using distorted wave Born approximation and the modified relativistic binary encounter Bethe model.The sensitivity of the results on the atomic parameters is explored. Observed agreements and discrepancies between the experimental results and theoretical estimates, and their dependence on the specific atomic parameters are reported.

  1. D- PRODUCTION BY CHARGE TRANSFER OF 0.3-10 keV D+, D0, AND D- IN CESIUM, RUBIDIUM, AND SODIUM VAPOR TARGETS

    E-Print Network [OSTI]

    Schlachter, A.S.

    2013-01-01

    M. Bacal for bringing the heat-pipe target concept to ourthat target length in a heat pipe can change with changing

  2. 110 Curtin university of teChnology annual report 2012 CertiFiCAtion oF KeY PerForMAnCe indiCAtors

    E-Print Network [OSTI]

    Mucina, Ladislav

    ($) Ranking Strengthen research capability and performance. Enhance capacity and financial sustainability. k and performance. Enhance capacity and financial sustainability. m Research Publication (weighted Higher Education research capability and performance. Enhance capacity and financial sustainability. o Weig

  3. T. Claquin C. Roelandt K.E. Kohfeld S.P. Harrison I. Tegen I.C. Prentice Y. Balkanski G. Bergametti

    E-Print Network [OSTI]

    Kohfeld, Karen

    tropical sea-surface temperatures, low atmospheric (CO2) and high atmospheric dust loading may be mutually precipitation and low atmospheric (CO2) on plant growth. Here the modelled three-dimensional dust fields from of optical properties associated with uncertainties about the mixing state of the dust particles. The high

  4. LIST OF FISH AT A PROPOSED OTEC SITE OFF KE-AHOLE POINT, HAWAII, DERIVED FROM COMMERCIAL FISH RECORDS, 1959-1978

    E-Print Network [OSTI]

    Jones, Anthony T.

    2012-01-01

    T. obesus [= Parathunnus sibi] Katsuwonus pelamis [=Euthynnus pelamis] Table 1 continued SPECIES XIPHIDAEshark, aku (Katsuwonus pelamis), ahi (Thunnus albacares),

  5. Finite-Hilbert-basis-set calculations for the angular distribution of ionized electrons produced in p+H impact at 20 ke

    E-Print Network [OSTI]

    Reading, John F.; Fu, J.; Fitzpatrick, M. J.

    2004-01-01

    We present a different method of extracting the angular distribution of ejected electrons in an ion-atom collision from a two-centered finite Hilbert basis-set calculation. We obtain good agreement with experiment for a ...

  6. Neutron Capture and Total Cross-Section Measurements and Resonance Parameter Analysis of Zirconium up to 2.5 keV

    E-Print Network [OSTI]

    Danon, Yaron

    Neutron Capture and Total Cross-Section Measurements and Resonance Parameter Analysis of Zirconium at the Rensselaer Polytechnic Institute LINAC using metallic zirconium samples. The capture mea- surement was madeV zirconium doublet. The present measure- ments support the Salah et al. conclusions. Specifically

  7. Nanocrystalline Silicon Thin Film Transistors on Optically Clear Polymer Foil Substrates Alex Kattamis, I-Chun Cheng, Ke Long, James C. Sturm, Sigurd Wagner

    E-Print Network [OSTI]

    -ethylene terephthalate (PET) [5] . However since PET has a glass transition temperature (Tg) process areas, compared to TFTs of amorphous silicon. Introduction Flexible displays are the next technology using fabrication processes that already have been developed for glass with only minor changes

  8. Object Reminder and Safety Alarm Chi-yau Lin, Chia-nan Ke, Shao-you Cheng, Jane Yung-jen Hsu, and Hao-hua Chu

    E-Print Network [OSTI]

    Chu, Hao-hua

    leave my keys?", "Did I turn off the stove?", or "Did I close all the windows in my house?" etc within the space. By attaching cheap, readily available, passive RFID tags on everyday objects

  9. The 2-79 keV X-ray Spectrum of the Circinus Galaxy with NuSTAR, XMM-Newton

    Office of Scientific and Technical Information (OSTI)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail. (Conference)Feedback SystemGimbaledM-PACE Observations (JournalThe 103rd Congressand

  10. The 2-79 keV X-ray Spectrum of the Circinus Galaxy with NuSTAR, XMM-Newton

    Office of Scientific and Technical Information (OSTI)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail. (Conference)Feedback SystemGimbaledM-PACE Observations (JournalThe 103rd

  11. 2300 VOLUME 17J O U R N A L O F C L I M A T E 2004 American Meteorological Society

    E-Print Network [OSTI]

    Bhatt, Uma

    Arctic Research Center, University of Alaska, Fairbanks, Fairbanks, Alaska JING ZHANG Geophysical Institute, University of Alaska, Fairbanks, Fairbanks, Alaska UMA S. BHATT International Arctic Research Center, University of Alaska, Fairbanks, Fairbanks, Alaska MOTO IKEDA Graduate School of Environmental

  12. Nuclear Science Division Annual Report 1995-1996

    E-Print Network [OSTI]

    Authors, Various

    2010-01-01

    Times in 3He Induced Nuclear Fission Th. Rubehn, K.X. Jing,capture delayed fission (ECDF), and nuclear properties; 3)et al. : Spontaneous Fission, in Nuclear Decay Modes, D.N.

  13. CONCURRENCY AND COMPUTATION: PRACTICE AND EXPERIENCE Concurrency Computat.: Pract. Exper. (2013)

    E-Print Network [OSTI]

    Deng, Jing

    2013-01-01

    , Fangyu Deng1, Jing Deng2 and Guowei Wu1,*, 1School of Software, Dalian University of Technology, Dalian *Correspondence to: Guowei Wu, School of Software, Dalian University of Technology, Dalian 116620, China. E

  14. Efficient Spectral Methods for Transmission Eigenvalues and ...

    E-Print Network [OSTI]

    2014-03-24

    Mar 20, 2014 ... Efficient Spectral Methods for Transmission. Eigenvalues and Estimation of the Index of. Refraction. Jing An1,2,?, Jie Shen1,3. 1 School of ...

  15. Air Quality Impact of Distributed Generation of Electricity

    E-Print Network [OSTI]

    Jing, Qiguo

    2011-01-01

    of DGs with and without heat recovery. Top panel: Fontanagas fired IC engine with heat recovery (Jing et al. , 2009).fired IC engine with heat recovery. The stack of the Palm

  16. MATERIALS AND MOLECULAR RESEARCH DIVISION. ANNUAL REPORT 1980

    E-Print Network [OSTI]

    Searcy, Alan W.

    2010-01-01

    steels is aimed at producing tough microstructures by isothermal annealingphase steels. Two-phase (« + y) and single (y) annealingSTEELS Jing-sheng Gau and Gareth Thomas The effect of some processing variables such as the annealing

  17. Interfacial Micellar Structures from Novel Amphiphilic Star Polymers

    E-Print Network [OSTI]

    Vakni, David

    Hoffman, Jing Teng, Eugene R. Zubarev, David Vaknin, and Vladimir V. Tsukruk*, Department of Materials) Hong, K.; Uhrig, D.; Mays, J. W. Curr. Opin. Solid State Mater. Sci. 1999, 4, 531. (c) Coessens, V

  18. UBC Social Ecological Economic Development Studies (SEEDS) Student Report The UBC Food System:To Infinity and Beyond Climate Neutral

    E-Print Network [OSTI]

    :To Infinity and Beyond Climate Neutral Rachel Yeh, Yasaman Arbabian, Neda Rahimi-Aliabadi, Jacob Siegel, Jing Action Partnership ­ Moving UBC Beyond Climate Neutral Group 23 Rachel Yeh,Yasaman Arbabian, Neda Rahimi

  19. Ballistic InAs Nanowire Transistors Steven Chuang,,

    E-Print Network [OSTI]

    Javey, Ali

    , Berkeley, California 94720, United States *S Supporting Information ABSTRACT: Ballistic transport,,§, Jing Guo, and Ali Javey*,,§, Electrical Engineering and Computer Sciences, University of California, Berkeley, California 94720, United States Electrical and Computer Engineering, University of Florida

  20. BioMed Central Page 1 of 12

    E-Print Network [OSTI]

    Tian, Weidong

    Research article Modular co-evolution of metabolic networks Jing Zhao1,2,4, Guo-Hui Ding3, Lin Tao2, Hong Yu2, Zhong-Hao Yu1, Jian- Hua Luo1, Zhi-Wei Cao*2 and Yi-Xue Li*2,3,1 Address: 1School of Life Sciences, Logistical Engineering University, Chongqing 400016, China Email: Jing Zhao - zjane_cn@sjtu.edu.cn; Guo

  1. The Chinese Aspect System and its Semantic Interpretation Guowen Yang and John A. Bateman

    E-Print Network [OSTI]

    (-le, -zhe, -guo4, etc.) and aspect adverbials (Yang, 1999, 2001). #12;name form name form unmarked (ceng2jing1)+V+(guo)unmarked- experiential V+(guo) marked-remote- experiential (ceng2jing1)+V recent-past-existing V+ (N) + (lai2zhe) unmarked-durative V+(zhe) activity-durative (zai4)+V long-durative (yi1zhi2)+V

  2. 1. Page 1, Monograph. Left column line 12 from bottom: For a 200 keV electron the probability of producing an X-ray photon at any energy below 200 keV is 0.5%. It's not 0.5% of the electron energy that is transferred to a photon.

    E-Print Network [OSTI]

    Østgaard, Nikolai

    hour local time duskward in 9 min giving an average westward travelling surge (WTS) velocity of about 0 time duskward in ~12 min giving an average westward travel- ling surge (WTS) velocity of about 0.8 km

  3. KE Uhrich (7/31/14) 1 K A T H R Y N E L I Z A B E T H U H R I C H

    E-Print Network [OSTI]

    Lawson, Catherine L.

    involving mechanistic studies of products formed in coal gasification condensate water PROFESSIONAL mechanistic studies of products formed in coal gasification condensate water USDA-Agricultural Research

  4. Initial Operation of the TCS Upgrade K.E. Miller, H.Y. Guo, A.L. Hoffman, R.D. Milroy, J.A. Grossnickle, A.Tankut, G.C. Vlases, P. Melnik R.D. Brooks

    E-Print Network [OSTI]

    Washington at Seattle, University of

    magnetic field ne is the plasma density RMF is the RMF rotation frequency rs is the FRC's separatrix radius.A. Grossnickle, A.Tankut, G.C. Vlases, P. Melnik R.D. Brooks Redmond Plasma Physics Laboratory, University of Washington FRCs at RPPL · FRC's have potential to make near ideal reactor - linear, high beta, ... · Physics

  5. Vol. 46 No. 7 pJs=hM3X2qO@J8;o July 2005 J,;6%=%U%H%&%'%"$N%F%9%H$KE,$7$?

    E-Print Network [OSTI]

    Chiba, Shigeru

    !y C1BN%F%9%H$H$O!$695A$K$O!$%=%U%H%&%'%"$r9=C[$9$k%b%8%e!¡ %k$=$l$¿$l$NF0:n3NG'%A%'%C%/$r0UL#$9$k

  6. Using Bayesian Network Inference Algorithms to Recover Molecular Genetic Regulatory Networks

    E-Print Network [OSTI]

    Babu, M. Madan

    Using Bayesian Network Inference Algorithms to Recover Molecular Genetic Regulatory Networks Jing of bioinformatics the use of network inference algorithms to predict causal models of molecular networks from correlational data. However, it is extremely difficult to evaluate the effectiveness of these algorithms because

  7. Transmission Completion Time Minimization in an Energy Harvesting System

    E-Print Network [OSTI]

    Ulukus, Sennur

    nature. The nodes may harvest energy through solar cells, vibration absorption devices, water millsTransmission Completion Time Minimization in an Energy Harvesting System Jing Yang Sennur Ulukus-user energy harvesting wireless communication system. In this system, both the data packets and the harvested

  8. Broadcasting with a Battery Limited Energy Harvesting Rechargeable Transmitter

    E-Print Network [OSTI]

    Ulukus, Sennur

    . The proposed algorithm uses directional water-filling repetitively. I. INTRODUCTION Energy harvestingBroadcasting with a Battery Limited Energy Harvesting Rechargeable Transmitter Omur Ozel1 , Jing with a battery limited energy harvesting trans- mitter in a two-user AWGN broadcast channel. The transmitter has

  9. Cleaning Web Pages for Effective Web Content Mining

    E-Print Network [OSTI]

    Ezeife, Christie

    Cleaning Web Pages for Effective Web Content Mining Jing Li and C.I. Ezeife School of Computer://www.cs.uwindsor.ca/cezeife Abstract. Classifying and mining noise-free web pages will improve on accuracy of search results as well as search speed, and may benefit web- page organization applications (e.g., keyword-based search engines

  10. 2013 IEEE 14th International Conference on High Performance Switching and Routing On Capacity Provisioning in Datacenter Networks

    E-Print Network [OSTI]

    Huang, Changcheng

    Provisioning in Datacenter Networks for Full Bandwidth Communication Wenda Ni*, Changcheng Huang*, and Jing Wu.huang}@sce.carleton.ca.jingwu@ieee.org Abstract-Recent advances in datacenter network design have enabled full bandwidth communication based, and under k arbitrary link failures. We derive the minimum link capacity required on two typical datacenter

  11. Temporal Evolution of Free Magnetic Energy Associated with Four X-class Flares

    E-Print Network [OSTI]

    energy for much of the solar activity such as flares and coronal mass ejections (CMEs)(see, for review magnetic configuration for conversion into kinetic and/or thermal energy) and its temporal variationTemporal Evolution of Free Magnetic Energy Associated with Four X-class Flares Ju Jing1 , P. F

  12. Adaptive Global Testing for Functional Linear Models Carnegie Mellon University

    E-Print Network [OSTI]

    Lei, Jing

    Adaptive Global Testing for Functional Linear Models Jing Lei Carnegie Mellon University August 5 BCS-0941518. Abstract This paper studies global testing of the slope function in functional linear when approxi- mating the functional regression model by a finite dimensional multivariate linear

  13. Customized optimization of metabolic pathways by combinatorial transcriptional engineering

    E-Print Network [OSTI]

    Zhao, Huimin

    Engineering, Institute for Genomic Biology and 2 Departments of Chemistry, Biochemistry and BioengineeringCustomized optimization of metabolic pathways by combinatorial transcriptional engineering Jing Du1, 2012; Accepted May 15, 2012 ABSTRACT A major challenge in metabolic engineering and syn- thetic biology

  14. This article appeared in a journal published by Elsevier. The attached copy is furnished to the author for internal non-commercial research

    E-Print Network [OSTI]

    Chen, Jiquan

    institution and sharing with colleagues. Other uses, including reproduction and distribution, or selling-dominated temperate forest Jing Xie a,b , Jiquan Chen c,b, , Ge Sun d , Housen Chu b , Asko Noormets e , Zutao Ouyang C sink in summer was associated with increasing air temperature (Ta) in spring. The leaf area index

  15. High Performance Architecture for Elliptic Curve Scalar Multiplication over GF(2m

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    1 High Performance Architecture for Elliptic Curve Scalar Multiplication over GF(2m ) Junjie Jiang's, is a promising technology for new cryptographic applications. It can achieve high security levels, Jing Chen, Jian Wang, Duncan S. Wong, and Xiaotie Deng Abstract We propose a new architecture

  16. Insight into Proton Transfer in Phosphotungstic Acid Functionalized Mesoporous Silica-Based Proton Exchange Membrane Fuel Cells

    E-Print Network [OSTI]

    Goddard III, William A.

    Exchange Membrane Fuel Cells Yuhua Zhou, Jing Yang, Haibin Su,*,, Jie Zeng,§ San Ping Jiang,*,§ and William have developed for fuel cells a novel proton exchange membrane (PEM) using inorganic phosphotungstic temperature PEM fuel cells are prone to poisoning by impurities in fuels such as carbon monoxide and (2

  17. A Supply Chain Network Perspective for Electric

    E-Print Network [OSTI]

    Nagurney, Anna

    to support the movement of power in unprecedented amounts and in unexpected directions" (North American Electric Reliability Council (1998)). "There is a critical need to be sure that reliability is not taken, 1998 Singh, 1999 Jing-Yuan and Smeers, 1999 Hobbs et al., 2000 Day et al., 2002 ... #12;References

  18. Annealing effects on the photovoltaic performance of all-conjugated poly(3-alkylthiophene) diblock copolymer-based bulk heterojunction solar

    E-Print Network [OSTI]

    Lin, Zhiqun

    Annealing effects on the photovoltaic performance of all-conjugated poly(3-alkylthiophene) diblock copolymer-based bulk heterojunction solar cells Ming He,ab Wei Han,ac Jing Ge,b Weijie Yu,a Yuliang Yang The effects of thermal and solvent vapor annealing on the photovoltaic performance of a new class of all

  19. Energy Cooperation in Energy Harvesting Two-Way Communications

    E-Print Network [OSTI]

    Ulukus, Sennur

    Energy Cooperation in Energy Harvesting Two-Way Communications Berk Gurakan1 , Omur Ozel1 , Jing energy from nature and energy can be transferred in one-way from one of the users to the other. Energy and users have unlimited batteries to store energy for future use. In addition, there is a separate wireless

  20. pubs.acs.org/BiochemistryPublished on Web 05/12/2009r 2009 American Chemical Society Biochemistry 2009, 48, 57535759 5753

    E-Print Network [OSTI]

    Paetzel, Mark

    VP4 by a FRET-Based Peptide Library Approach Ozlem Dogan Ekici, Jinge Zhu, Ivy Yeuk Wah Chung,§ Mark peptide library method for systematically profiling the substrate specificity of endopeptidases of several representative sequences against VP4 confirmed the library screening results. Proteases make up

  1. A Distributed Public Key Caching Scheme in Large Wireless Networks

    E-Print Network [OSTI]

    Deng, Jing

    -constrained, in terms of computational power, battery energy, and on-board memory space. For example, the prototypeA Distributed Public Key Caching Scheme in Large Wireless Networks Yuan Kong Jing Deng Stephen R in wireless networks, the public keys of the nodes need to be widely available and signed by a Certificate

  2. Ideal Observers for Detecting Human Motion: Correspondence Noise.

    E-Print Network [OSTI]

    Yuille, Alan L.

    purpose, models of motion. We perform more psychophysical experiments which are consistent with humansIdeal Observers for Detecting Human Motion: Correspondence Noise. HongJing Lo Department obtain Barlow and Tripathy's classic model as an approximation. Our psychophysical experiments show

  3. Automatic Solar Flare Detection Using MLP, RBF and SVM , Frank Y. Shih1

    E-Print Network [OSTI]

    in light curves. In the mean time, solar flares also emit high velocity charged particles that take one1 Automatic Solar Flare Detection Using MLP, RBF and SVM Ming Qu1 , Frank Y. Shih1 , Ju Jing2. The focus of the automatic solar flare detection is on the development of efficient feature

  4. A Genomic Portrait of Human Microsatellite Variation Bret A. Payseur,*,1

    E-Print Network [OSTI]

    Payseur, Bret

    of SNP variation, with marked heterogeneity among classes of loci. The proportion of variable lociA Genomic Portrait of Human Microsatellite Variation Bret A. Payseur,*,1 Peicheng Jing,1 and Ryan J are beginning to reveal the scope and pattern of human genomic variation. Although single nucleotide

  5. DEVELOPMENT OF AN FDTD TOOL FOR MODELING OF DISPERSIVE MEDIA

    E-Print Network [OSTI]

    Koledintseva, Marina Y.

    .122; =2.91E-11 s; e = 2.257E-3 S/m. Copper planes were modeled as PEC plates. The excitation sourceDEVELOPMENT OF AN FDTD TOOL FOR MODELING OF DISPERSIVE MEDIA Part II. Examples of the EZ-FDTD modeling and measurements. Jianmin Zhang, Jing Wu, Marina Y. Koledintseva, James L. Drewniak, University

  6. Outage Performance for Amplify-and-Forward Channels with an Unauthenticated Relay

    E-Print Network [OSTI]

    Swindlehurst, A. Lee

    Outage Performance for Amplify-and-Forward Channels with an Unauthenticated Relay Jing Huang and reliable message transmission via the secrecy outage probability (SOP) of the relay network. We first predictions of the preferred transmission policies from a secrecy outage perspective. I. INTRODUCTION

  7. Social Networking Reduces Peak Power Consumption in Smart Grid

    E-Print Network [OSTI]

    Wu, Dapeng Oliver

    in buildings represents approximately 74% of the nation's electricity consumption [1]. However, electricity the peak power consumption of schedulable jobs of electrical appliances of users under de- lay requirements1 Social Networking Reduces Peak Power Consumption in Smart Grid Qiuyuan Huang, Xin Li, Jing Zhao

  8. ISSN 1673-9418 CODEN JKYTA8 E-mail:fcst@public2.bta..net.cn Journal of Frontiers of Computer Science and Technology http://www.ceaj.org

    E-Print Network [OSTI]

    of Education of China No.200800020002() Received 2009-07, Accepted 2009- C-Rank: Deep Web * , , + , 100872 C-Rank: A Credibility Evaluation Method for Deep Web Records AI Jing, WANG Zhong-yuan, MENG Xiao-Rank to compute trust values of records in Deep Web databases is proposed, which constructs an S-R Credibility

  9. fur Mathematik in den Naturwissenschaften

    E-Print Network [OSTI]

    with Arbitrary Pure or Mixed States by Ming-Jing Zhao, Zong-Guo Li, Shao-Ming Fei, Zhi-Xi Wang, and Xianqing Li , Zong-Guo Li2 , Shao-Ming Fei1,3 , Zhi-Xi Wang1 , and Xianqing Li-Jost3 1 School of Mathematical

  10. The Li'an ("Docketing") Process: Barriers to Initiating Lawsuits in China and Possible Reforms

    E-Print Network [OSTI]

    Cheuk, Andrea

    2008-01-01

    zhi lu de bi jing zhi men: Dui wo guo min shi su song shouSee Mao Junmin, Wo guo minshi qi su yao jian zhi zhong gou [HUA REN MIN GONG HE GUO MIN SHI FA YUAN ZU ZHI FA [COURT

  11. Homochiral metalorganic coordination networks from L-typtophan , Ying Yan a

    E-Print Network [OSTI]

    Li, Jing

    a , Guo-Ping Yong a , Yong Cui a , Zhi-Yong Wang a,*, Long Pan b , Jing Li b,*, Rong Fan c , Rui-Peng Li c , Yang-Chao Tian c , Guo-Qiang Pan c , Liu-Si Sheng c , Xing Li d a Hefei National Laboratory

  12. Max-Planck-Institut f ur Mathematik

    E-Print Network [OSTI]

    with Arbitrary Pure or Mixed States by Ming­Jing Zhao, Zong­Guo Li, Shao­Ming Fei, Zhi­Xi Wang, and Xianqing Li , Zong­Guo Li 2 , Shao­Ming Fei 1,3 , Zhi­Xi Wang 1 , and Xianqing Li­Jost 3 1 School of Mathematical

  13. Optimum Transmission Range for Wireless Ad Hoc Networks

    E-Print Network [OSTI]

    Deng, Jing

    Optimum Transmission Range for Wireless Ad Hoc Networks Jing Deng Dept. of EECS Syracuse Univ-- The transmission range that achieves the most economical use of energy in wireless ad hoc networks is studied under homogeneous node distribution. By as- suming the knowledge of node location, we first proposed a transmission

  14. Noise properties of low-dose X-ray CT sinogram data in Radon space , Hongbing Lu2

    E-Print Network [OSTI]

    Noise properties of low-dose X-ray CT sinogram data in Radon space Jing Wang1 , Hongbing Lu2 statistical moments will improve low-dose CT image reconstruction for screening applications. Keywords: Low-dose]. However, clinical use of CT frequently exposes the patients to excessive X-ray radiation [4

  15. Investigating the Performance of Solar Air Conditioning Motivation/Background Findings

    E-Print Network [OSTI]

    Sun, Yu

    Investigating the Performance of Solar Air Conditioning Motivation/Background Findings Two Building-thermal collectors We investigated 3 types of solar cooling technologies: · Air conditioning consumes 10% of all Team Members: Jing Cong Chen, Rong Xiang, Chen Ma, Wen Jie Li · Results demonstrate that solar air

  16. Mitigating FPGA Interconnect Soft Errors by In-Place LUT Inversion

    E-Print Network [OSTI]

    He, Lei

    , power and perfor- mance. Recent logic re-synthesis techniques, such as ROSE [2], IPR [3], IPD [4] and R2Mitigating FPGA Interconnect Soft Errors by In-Place LUT Inversion Naifeng Jing1 , Ju-Yueh Lee2 the Soft Error Rate (SER) at chip level, and reveal a locality and NP-Hardness of the IPV problem. We

  17. Mitigating FPGA Interconnect Soft Errors by In-Place LUT Inversion

    E-Print Network [OSTI]

    He, Lei

    but with high overhead in area, power and performance. Recent logic re-synthesis techniques, such as ROSE [2Mitigating FPGA Interconnect Soft Errors by In-Place LUT Inversion Naifeng Jing1 , Ju-Yueh Lee2 the Soft Error Rate (SER) at chip level, and reveal a locality and NP-Hardness of the IPV problem. We

  18. Fault-Tolerant and Reliable Computation in Cloud Computing

    E-Print Network [OSTI]

    Deng, Jing

    Fault-Tolerant and Reliable Computation in Cloud Computing Jing Deng Scott C.-H. Huang Yunghsiang S, Taipei, 106 Taiwan. § Intelligent Automation, Inc., Rockville, MD, USA. Abstract-- Cloud computing of scientific computation in cloud computing. We investigate a cloud selection strategy to decompose the matrix

  19. Effects of storage temperature and duration on release of antimony and bisphenol A from polyethylene terephthalate drinking water

    E-Print Network [OSTI]

    Ma, Lena

    polyethylene terephthalate drinking water bottles of China Ying-Ying Fan a , Jian-Lun Zheng a , Jing-Hua Ren Accepted 9 May 2014 Available online xxx Keywords: Polyethylene terephthalate Antimony Bisphenol A Release of antimony (Sb) and bisphenol A (BPA) from 16 brands of polyethylene terephthalate (PET) drinking water

  20. Achieving Differential Privacy of Data Disclosure in the Smart Grid

    E-Print Network [OSTI]

    Li, Xiang-Yang

    Achieving Differential Privacy of Data Disclosure in the Smart Grid Jing Zhao Taeho Jung Yu Wang-- The smart grid introduces new privacy implications to individuals and their family due to the fine of the proposed method over existing BLH methods. Index Terms--Smart Grid, Smart Meter, Privacy, Differential

  1. Pollution Attacks and Defenses in Wireless Inter-flow Network Coding Systems

    E-Print Network [OSTI]

    Nita-Rotaru, Cristina

    1 Pollution Attacks and Defenses in Wireless Inter-flow Network Coding Systems Jing Dong, Reza Abstract--We study data pollution attacks in wireless inter-flow network coding systems. Although several the existing systems, and use it to analyze the impact of pollution attacks. Our analysis shows

  2. Tropical Resources Bulletin 1 TROPICALRESOURCESThe Bulletin of the Yale Tropical Resources Institute

    E-Print Network [OSTI]

    Haller, Gary L.

    2012 49 Small Hydropower for Sustainable Energy Development in Northwestern Rural China Jing Ma, MEM, and Boundary-making in the Atlantic Forest of Brazil Alaine Ball, MFS 2012 31 The Political Ecology of Fire in the Andean-Patagonian Region of Argentina Daniela Marini, MFS 2012 II. ENERGY, CARBON, AND ECOSYSTEM SERVICES

  3. Broadcasting with a Battery Limited Energy Harvesting Rechargeable Transmitter

    E-Print Network [OSTI]

    Ulukus, Sennur

    ) at the transmitter at random instants. The battery at the transmitter has a finite storage capacity, hence energy mayBroadcasting with a Battery Limited Energy Harvesting Rechargeable Transmitter Omur Ozel1 , Jing with a battery limited energy harvesting trans- mitter in a two-user AWGN broadcast channel. The transmitter has

  4. A Cluster-based Energy Balancing Scheme in Heterogeneous Wireless Sensor Networks

    E-Print Network [OSTI]

    Bölöni, Ladislau L

    A Cluster-based Energy Balancing Scheme in Heterogeneous Wireless Sensor Networks Jing Ai, Damla Unbalanced energy consumption is an inherent problem in wireless sensor networks, and it is largely of energy reserve and wireless communication ability. We transform the flat communication in- frastructure

  5. Energy Cooperation in Energy Harvesting Wireless Communications

    E-Print Network [OSTI]

    Ulukus, Sennur

    Energy Cooperation in Energy Harvesting Wireless Communications Berk Gurakan1 , Omur Ozel1 , Jing the broadcast nature of the wireless network. In this work, we anticipate an energy harvesting network where transfer a portion of its energy to the relay node as in Fig. 1 through a separate wireless energy transfer

  6. Transmission Completion Time Minimization in an Energy Harvesting System

    E-Print Network [OSTI]

    Ulukus, Sennur

    arrivals. I. INTRODUCTION In this work, we consider networks where nodes are able to harvest energy from nature. The nodes may harvest energy through solar cells, vibration absorption devices, water millsTransmission Completion Time Minimization in an Energy Harvesting System Jing Yang Sennur Ulukus

  7. CP955, Shock Compression of CondensedMatter -2007, edited by M. Elert, M. D. Furnish, R. Cliau, N. Holmes, and J. Nguyen

    E-Print Network [OSTI]

    Meyers, Marc A.

    AND MICROSTRUCTURAL PROPERTIES OF PTFE/A1A¥ SYSTEM Jing Cai\\ Fengchun Jiang^, Kenneth S. Vecchio^'^, Marc A. Meyers properties of high density PTFE/AIAV composites consisting of PTFE matrix, aluminum and tungsten particles with an identical weight ratio between PTFE, Al and W were fabricated by Cold Isostatic Pressing. The quasi

  8. A model of sediment resuspension and transport dynamics in southern Lake Michigan

    E-Print Network [OSTI]

    A model of sediment resuspension and transport dynamics in southern Lake Michigan Jing Lou-three-dimensional suspended sediment transport model was developed and generalized to include combined wave-current effects to study bottom sediment resuspension and transport in southern Lake Michigan. The results from a three

  9. Turning Relational DBMS into Nested Relational DBMS GeneticXchange, Inc

    E-Print Network [OSTI]

    Wong, Limsoon

    Turning Relational DBMS into Nested Relational DBMS Jing Chen GeneticXchange, Inc chenjing previously been described [24, 23], the details of its interface to relational DBMS and other sources have never been published. In this paper, we describe the Kleisli's interface to relational DBMS

  10. Towards an Automatic Metadata Management Framework for Smart Oil Charalampos Chelmis1

    E-Print Network [OSTI]

    Hwang, Kai

    Towards an Automatic Metadata Management Framework for Smart Oil Fields Charalampos Chelmis1 , Jing of sensors. On one hand, increasing amounts of such data are stored in large data repositories and accessed that data is stored in large repositories carrying no metadata to describe them. The origin or context

  11. Next-generation phenomics for the Tree of Life June 26, 2013 AVAToL

    E-Print Network [OSTI]

    Kaufman 12 , Edith Law 13 , Jing Liu 14 , Lisa Moore 15 , Maureen A O'Leary 16 , Maria Passarotti 12 J, Julius M, Kaufman S, Law E, Liu J, Moore L, O'Leary MA, Passarotti M, Ranade S, Simmons NB

  12. Large-Scale Patent Classification with Min-Max Modular Support Vector Machines

    E-Print Network [OSTI]

    Lu, Bao-Liang

    Large-Scale Patent Classification with Min-Max Modular Support Vector Machines Xiao-Lei Chu, Chao Ma, Jing Li, Bao-Liang Lu Senior Member, IEEE, Masao Utiyama, and Hitoshi Isahara Abstract-- Patent-world patent classification typically exceeds one million, and this number increases every year. An effective

  13. NBER WORKING PAPER SERIES PATENT COLLATERAL, INVESTOR COMMITMENT, AND THE MARKET FOR

    E-Print Network [OSTI]

    Sekhon, Jasjeet S.

    NBER WORKING PAPER SERIES PATENT COLLATERAL, INVESTOR COMMITMENT, AND THE MARKET FOR VENTURE Corp for data on patent transactions, and Andre Boik, Jing Li, Karina Mann, Junguang Pan, Anastasia that full credit, including © notice, is given to the source. #12;Patent Collateral, Investor Commitment

  14. Elective Participation in Ad Hoc Networks Based on Energy Consumption

    E-Print Network [OSTI]

    Deng, Jing

    Elective Participation in Ad Hoc Networks Based on Energy Consumption Marc R. Pearlman , Jing Deng of determining the op- timal transmission radius for minimal interference and energy consumption is considered be significant. There- fore, in order to more aggressively conserve energy, one must Currently with the GE Global

  15. Towards Integrated PSEs for Wireless Communications: Experiences with the S

    E-Print Network [OSTI]

    Ramakrishnan, Naren

    ¥ Wireless Networking and Communications Group (WNCG) Department of Electrical and Computer EngineeringTowards Integrated PSEs for Wireless Communications: Experiences with the S W and SitePlanner R¦ , Jing Jiang¦ , and William H. Tranter¦ ¢ Wireless Valley Communications, Inc. Austin, TX 78758 £ Google

  16. Learning Brain Connectivity of Alzheimer's Disease from Neuroimaging Data

    E-Print Network [OSTI]

    Li, Jing

    Learning Brain Connectivity of Alzheimer's Disease from Neuroimaging Data Shui Huang2 , Jing Li2 to alternation in the functional brain network, i.e., the functional connectivity among different brain regions. In this paper, we consider the problem of learning functional brain connectivity from neuroimaging, which holds

  17. Solar Flare Tracking Using Image Processing Techniques , Frank Y. Shih1

    E-Print Network [OSTI]

    Solar Flare Tracking Using Image Processing Techniques Ming Qu1 , Frank Y. Shih1 , Ju Jing2 grants IIS-0324816, ATM 0233931 and ATM 0313591. Abstract. Automatic property measurement of solar flares through their complete cyclic development is valuable in the studies of solar flares. From the analysis

  18. HU ET AL. VOL. 7 ' NO. 11 ' 1042410432 ' 2013 www.acsnano.org

    E-Print Network [OSTI]

    Wang, Zhong L.

    and Positioning Sensor and Wave Energy Harvester Youfan Hu,,^ Jin Yang,,,^ Qingshen Jing, Simiao Niu, Wenzhuo Wu a buoy ball, wave energy harvesting at water surface has been demonstrated and used for lighting, and Zhong Lin Wang,§,* School of Material Science and Engineering, Georgia Institute of Technology, Atlanta

  19. Proceedings of the Second CIPS-SIGHAN Joint Conference on Chinese Language Processing, pages 7478, Tianjin, China, 20-21 DEC. 2012

    E-Print Network [OSTI]

    2012 Jing Zhang Dalian University of Technology, DaLian, P. R. China. zhangjingqf@mail.dlut.edu.cn Degen Huang Dalian University of Technology, DaLian, P. R. China. huangdg@dlut.edu.cn Xia Han Dalian University of Technology, DaLian, P. R. China. hanxia@mail.dlut.edu.cn Wei Wang Dalian University

  20. From Single to Multiple Atomic Layers: A Unique Approach to the Systematic Tuning of Structures and Properties of

    E-Print Network [OSTI]

    Li, Jing

    the structures and properties of a unique family of inorganic- organic hybrid nanostructured materials based and Properties of Inorganic-Organic Hybrid Nanostructured Semiconductors Xiaoying Huang and Jing Li* Contribution devices.1 Recent development on the synthesis and fabrication of nanoparticles of these semiconductors has

  1. On the Relation between Filament Eruptions, Flares, and Coronal Mass Ejections

    E-Print Network [OSTI]

    On the Relation between Filament Eruptions, Flares, and Coronal Mass Ejections Ju Jing, Vasyl B a statistical study of 106 filament eruptions, which were automat- ically detected by a pattern recognition and Large Angle and Spectrometric Corona- graph (LASCO) data to determine the relationship between filament

  2. Human-System Interface Complexity and Opacity Part I: Literature Review

    E-Print Network [OSTI]

    Cummings, Mary "Missy"

    . Sasangohar K.M. Thornburg Massachusetts Institute of Technology* Prepared For Nuclear Regulatory Commission importance to the Nuclear Regulatory Commission (NRC) is the impact such modernizations or new technologies Office of Nuclear Regulatory Research Dr. Jing Xing Dr. Amy D'Agostino HAL2010-01 March 2010 *MIT

  3. Effect of heat treatment on Si electrodes using polyvinylidene fluoride binder , L. Christensenb

    E-Print Network [OSTI]

    Hewitt, Kevin

    1 Effect of heat treatment on Si electrodes using polyvinylidene fluoride binder Jing Lia , L and adhesion tests. It is suggested that heat treatment improves the binder distribution, the adhesion performance of Si electrodes using polyvinylidene fluoride (PVDF) binder heated at different temperatures

  4. Chemistry of Materials 1989, 1,83-101 How C-C Bonds Are Formed and How They Influence

    E-Print Network [OSTI]

    Li, Jing

    Chemistry of Materials 1989, 1,83-101 How C-C Bonds Are Formed and How They Influence Structural Choices in Some Binary and Ternary Metal Carbides 83 Jing Li and Roald Hoffmann* Department of Chemistry properties. In the UC2structure, both uranium-carbon bonding and carbon-carbon bonding are enhanced upon

  5. 3D Metal-Organic Frameworks Based on Elongated Tetracarboxylate Building Blocks for Hydrogen Storage

    E-Print Network [OSTI]

    Li, Jing

    3D Metal-Organic Frameworks Based on Elongated Tetracarboxylate Building Blocks for Hydrogen Storage Liqing Ma, Jeong Yong Lee, Jing Li, and Wenbin Lin*, Department of Chemistry, CB#3290, Uni. The porosity and hydrogen uptake of the frameworks were determined by gas adsorption experiments. A wide range

  6. Received 17 Oct 2014 | Accepted 6 Mar 2015 | Published 21 Apr 2015 Skilful multi-year predictions of tropical trans-basin

    E-Print Network [OSTI]

    Chikamoto, Yoshimitsu

    ocean basins. State-of-the-art climate model forecasts initialized from a realistic ocean state show and energy sectors worldwide. Climate predictions may exhibit enhanced skill on timescales of years-year predictions of tropical trans-basin climate variability Yoshimitsu Chikamoto1, Axel Timmermann1,2, Jing

  7. Mg2SnO4 ceramics I. Synthesisprocessingmicrostructure correlation

    E-Print Network [OSTI]

    Azad, Abdul-Majeed

    Mg2SnO4 ceramics I. Synthesis±processing±microstructure correlation Abdul-Majeed Azad *, Liew Jing- mical formula MSnO3 (M=Ca, Sr and Ba), have recently been studied as potential electronic ceramics-8842(00)00085-7 Ceramics International 27 (2001) 325±334 www.elsevier.com/locate/ceramint * Corresponding author at current

  8. Free Magnetic Energy and Flare Productivity of Active Regions , Changyi Tan2,3

    E-Print Network [OSTI]

    Free Magnetic Energy and Flare Productivity of Active Regions Ju Jing1 , Changyi Tan2,3 , Yuan Yuan with which we are able to estimate the free magnetic energy stored in the active regions. The magnitude scaling correlation between the free magnetic energy and the soft X-ray flare index of active regions

  9. PLANT SCIENCES FOR STUDENTS Edited by Richard Robinson

    E-Print Network [OSTI]

    Wu, Jianguo "Jingle"

    PLANT SCIENCES FOR STUDENTS Edited by Richard Robinson Desertification Contributed by Jianguo Wu://www.west.asu.edu/jing #12;1 DESERTIFICATION Human survival and prosperity are dependent ultimately on the productivity. Desertification has widely been recognized as one of the several major global environ- mental problems since

  10. Optimal Routing in a Small-World Network Jianyang Zeng

    E-Print Network [OSTI]

    Zeng, Jianyang "Michael"

    of the network) [9]. In order to examine the routing on random graphs, Kleinberg [9] develops a new model basedOptimal Routing in a Small-World Network Jianyang Zeng and Wen-Jing Hsu Abstract Recently a bulk of research [14, 5, 15, 9] has been done on the modelling of the small- world phenomenon, which has been shown

  11. Probabilistic Failure Detection for Efficient Distributed Storage Maintenance* , Zhi Yang*

    E-Print Network [OSTI]

    Almeroth, Kevin C.

    avail- ability. Node failures can be transient or permanent. While the system must generate new replicasProbabilistic Failure Detection for Efficient Distributed Storage Maintenance* Jing Tian* , Zhi@cs.ucsb.edu Abstract Distributed storage systems often use data replica- tion to mask failures and guarantee high data

  12. Protector: A Probabilistic Failure Detector for Cost-Effective Peer-to-Peer Storage

    E-Print Network [OSTI]

    Zhao, Ben Y.

    replicas as needed to compensate for others lost to peer failures. Since replica generation consumesProtector: A Probabilistic Failure Detector for Cost-Effective Peer-to-Peer Storage Zhi Yang, Jing availability, additional replicas must be created when peers fail. Since the majority of failures in P2P

  13. 22 A. S. Argon Equation (AI. IS) would appear to be the basis of the pre-expo-

    E-Print Network [OSTI]

    . CONTINUUM MECHANICS AND THERMODYNAMICS OF PLASTICITY IN RELATION TO MICROSCALE DEFORMATION MECHANISMS J~ing plasticity. Special emphasis is given to the connection of mac~oscopic fo~lations to defo~ation mechanisms plasticity, with special reference to the form and framework for these relations as set by underlying

  14. Interplay of discharge and gas flow in atmospheric pressure plasma jets Nan Jiang,1

    E-Print Network [OSTI]

    Zexian, Cao

    Interplay of discharge and gas flow in atmospheric pressure plasma jets Nan Jiang,1 JingLong Yang,2 2011) Interplay of discharge and gas flow in the atmospheric pressure plasma jets generated with three jets at smaller applied voltages. Larger applied voltage implies an elongated plasma jet only

  15. Int. J. Ad Hoc and Ubiquitous Computing, Vol. 1, No. 4, 2006 203 Copyright 2006 Inderscience Enterprises Ltd.

    E-Print Network [OSTI]

    Huang, Xinming

    Int. J. Ad Hoc and Ubiquitous Computing, Vol. 1, No. 4, 2006 203 Copyright © 2006 Inderscience and Ubiquitous Computing, Vol. 1, No. 4, pp.203­209. Biographical notes: Xin-Ming Huang is an Assistant Professor, embedded systems and reconfigurable computing. Jing Ma received BE and ME Degrees from North

  16. ESoftCheck: Removal of Non-vital Checks for Fault Google Inc.

    E-Print Network [OSTI]

    Garzarán, María Jesús

    ESoftCheck: Removal of Non-vital Checks for Fault Tolerance Jing Yu Google Inc. jingyu techniques to determine which are the vital checks, that is, the minimum number of checks that are necessary to detect an error and roll back to a correct program state. ES- oftCheck identifies the vital checks

  17. Dynamic Spherical Volumetric Simplex Splines with Applications in Biomedicine Wayne State University

    E-Print Network [OSTI]

    Qin, Hong

    Dynamic Spherical Volumetric Simplex Splines with Applications in Biomedicine Yunhao Tan , Jing Hua computational framework based on dy- namic spherical volumetric simplex splines for simulation of genus- zero to reconstruct the high-fidelity digi- tal model of a real-world object with spherical volumetric simplex splines

  18. Haptics-based Volumetric Modeling Using Dynamic Spline-based Implicit Functions

    E-Print Network [OSTI]

    Qin, Hong

    Haptics-based Volumetric Modeling Using Dynamic Spline-based Implicit Functions Jing Hua Hong Qin-based volumetric modeling framework, which is founded upon volumetric implicit functions and powerful physics-based modeling. The volumetric implicit functions incorporate hierarchical B-splines, CSG-based functional

  19. The synthesis, characterization and electroluminescent properties of zinc(II) complexes for single-layer organic light-emitting diodes

    E-Print Network [OSTI]

    Li, Jing

    reserved. 1. Introduction Organic light-emitting diodes (OLEDs) are making significant advances in flat are in commercial volume production [3]. In a typical OLED, a hole transporter, an electron transporter, and a light-layer organic light-emitting diodes He-Ping Zeng a,*, Guang-Rong Wang a , Gong-Chang Zeng c , Jing Li a

  20. Journal of The Electrochemical Society, 162 (1) H65-H71 (2015) H65 Enhancing Majority Carrier Transport in WO3 Water Oxidation

    E-Print Network [OSTI]

    Osterloh, Frank

    2015-01-01

    Transport in WO3 Water Oxidation Photoanode via Electrochemical Doping Jing Zhao, Everardo Olide, and Frank for monoclinic tungsten trioxide (WO3) particulate photoanodes. Electrochemical impedance and improved electron transport. Minority carrier extraction can be increased by reducing the WO3 particle size

  1. Meshfree Simulations of Spall Fracture By Bo Ren ,

    E-Print Network [OSTI]

    Li, Shaofan

    Meshfree Simulations of Spall Fracture By Bo Ren , , Shaofan Li, , Jing Qian , Xiaowei Zeng Shock wave induced spall fracture is a complex multiscale phenomenon, and it is a challenge to build a constitutive and computational model that can capture the essential features of the spall fracture

  2. On the Energy Overhead of Mobile Storage Systems Anirudh Badam*

    E-Print Network [OSTI]

    Narasayya, Vivek

    On the Energy Overhead of Mobile Storage Systems Jing Li Anirudh Badam* Ranveer Chandra* Steven the energy consumption of the storage stack on mobile platforms. We conduct several experiments on mobile plat- forms to analyze the energy requirements of their re- spective storage stacks. Software storage

  3. Knowledge Exchange at CRFR: Past, present, future 

    E-Print Network [OSTI]

    Morton, Sarah

    to the future. It discusses CRFR’s approach to KE, showcases some highlights of its KE activities, and identifies challenges for the future....

  4. Hanford Site

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    remediation 100 K Pipeline 100 K Pipeline 183 KW Aerial 183 KW Aerial 105 KE Soil Remediation 105 KE Soil Remediation...

  5. Energy Conservation in China North Industries Corporation 

    E-Print Network [OSTI]

    You, W. T.; De, C. H.; Chu, J. X.; Fu, L. R.

    1985-01-01

    IN CHINA NORTH INDUSTRIES CORPORATION Wang Tian You, Chen Hua De, Jing Xing Chu, Ling Rui Fu, China North Industries Corporation Beijing, People's Republic of China ABSTRACT This paper describes an overview of the energy conservation in China... North Industries Corporation. It shows how the corporation improves energy effi ciencies and how it changes constitution of fuel-- converting oil consumption to coal. Energy management organization, energy balance in plants and several specific...

  6. Revue d'Etudes Tibétaines

    E-Print Network [OSTI]

    Achard, Jean-Luc

    2006-01-01

    (san. pratyavek?aˆajñåna, cin. guangcha zhi ???) (Nenghai, Commentario, p. 46b). 10 L’immagine, tratta dal Commentario (p. 51b), mostra la disposizione delle quarantanove divinità della fase del ‘frutto’ (cin. guo, tib. ’bras bu): “In tal modo si... “La visualizzazione della sillaba å? genera la saggezza simile allo specchio (san. ådarßana- jñåna, cin. dayuan jing zhi ????)” (Nenghai, Commentario, p. 46b). 3 “La visualizzazione del vasto ed immenso maˆ? ala solare genera la saggezza primordiale...

  7. The Justification of Intellectual Property: Contemporary Philosophical Disputes

    E-Print Network [OSTI]

    Himma, Kenneth

    2006-01-01

    intellectual property, and hacking. In Himma, K.E. (in internet security: hacking, counterhacking, and society.

  8. E r n e s t O r l a n d o L a w r e n c e B e r ke l e y N a t i o n a l L a b o r a t o r y synchrotron radiation

    E-Print Network [OSTI]

    and biological sys- tems with characteristic length scales measured in nanometers. #12;The Molecular Foundry. The ALS will complement the Molecular Foundry by providing tools for measurement and characterization Nanoscale Science Research Centers (NSRCs), one of which is the Molecular Foundry at Berkeley Lab

  9. Lab Process AreaWhere CORAL Name It is: It does: Maker/Model Units per:(self-run) if staff EBL e-beam write24-041 Elionix 125 keV, hi-res e-beam writere-beam write Elionix F-125 10 hr 10

    E-Print Network [OSTI]

    Reif, Rafael

    systemmeasures film thickness Filmetrics F20 8 hr 12 EML Photo-EMLAu Bonder Rm hotpress hydraulic press applies Al, Cr, Cu, etc AJA Orion 5 30 run+mat. 37 EML diffusion Au Bonder Rm vac-oven vacuum oven for annealing, sintering, etc in vacuumTM Vacuum Products Model SS806NS-148 hr 12 ICL metrologymetrology 4-pt

  10. Neural correlates of auditory word processing in infants and adults

    E-Print Network [OSTI]

    Travis, Katherine Elizabeth

    2011-01-01

    Cortex. Travis KE, Leonard MK, Curran M, Hagler DJ, Dale AM,PUBLICATIONS Travis KE, Curran, M, Torres C, Leonard MK,Brown, TT, Hagler DJ, Curran M, Dale AM, Elman J, Halgren

  11. A JOINT MODEL OF X-RAY AND INFRARED BACKGROUNDS. II. COMPTON...

    Office of Scientific and Technical Information (OSTI)

    cosmic X-ray background spectrum at 20 keV. Our model predicts that the majority (90%) of luminous and bright CT AGNs (Lsub rest2-10keV > 10sup 44 erg ssup -1 or fsub...

  12. 3D Simulations of Thermonuclear Supernovae From Very Massive Stars

    E-Print Network [OSTI]

    Crowther, Paul

    3D Simulations of Thermonuclear Supernovae From Very Massive Stars Ke-Jung (Ken) Chen Johnston #12;3D Simulations of Thermonuclear Supernovae From Very Massive Stars Ke-Jung (Ken) Chen Johnston

  13. Hanford Site

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    K Basin Cleanup K Basin Cleanup Fuel Fuel Weasel Pit Pumping KE Weasel Pit Pumping KE Installing Sludge Containers Installing Sludge Containers Sludge Sludge Page: 1 2 3 4 5...

  14. Decadal Variability in the Formation of the North Pacific Subtropical Mode Water: Oceanic versus Atmospheric Control

    E-Print Network [OSTI]

    Qiu, Bo

    , during which time high regional eddy variability infuses high-PV KE water into the recirculation gyre

  15. Supramolecular self-assembled chaos: polyphenolic lignin's barrier to cost-effective lignocellulosic biofuels

    E-Print Network [OSTI]

    Achyuthan, Komandoor

    2014-01-01

    thereby  cost-­? effective  biofuels  production.   PMID:  effective  lignocellulosic  biofuels.   Achyuthan  KE,  effective   lignocellulosic  biofuels.  Post-­?synthesis  

  16. The Static Driver Verifier Research Platform

    E-Print Network [OSTI]

    Rajamani, Sriram K.

    of Bebop! #12;Device Driver Interface KeAcquire SpinLock KeRelease SpinLock Driver Entry Point I/O Manager Device Driver Interface Model KeAcquire SpinLock KeRelease SpinLock Driver Entry Point I/O Manager Model(s==locked) { abort "The driver has returned from an entry point without releasing the lock.";}} #12;Sample Driver

  17. Formation of a heteronuclear tetramer A{sub 3}B via Efimov-resonance-assisted stimulated Raman adiabatic passage

    SciTech Connect (OSTI)

    Li Guanqiang; Peng Ping [Faculty of Science, Shaanxi University of Science and Technology, 710021 Xi'an (China)

    2011-04-15

    We investigate the formation of a heteronuclear tetramer A{sub 3}B by an Efimov-resonance-assisted stimulated Raman adiabatic passage scheme, which is considered a viable means of creating the homonuclear tetramer A{sub 4}[H. Jing and Y. Jiang, Phys. Rev. A 77, 065601 (2008)]. The atom-molecule dark-state solution for the system is derived, and the adiabatic conversion from atoms to heteronuclear tetramers is studied via the concept of adiabatic fidelity. In addition, the effects of external field parameters (including Rabi pulse strength, width, and single photon detuning) on the conversion are discussed.

  18. Shear band structure in ballistically tested bainitic steels

    E-Print Network [OSTI]

    Fielding, L. C. D.; Bhadeshia, H. K. D. H.

    and simple process to obtain nano-structured bulk low-carbon steel with superior mechan- ical property’, Scripta Materialia, 2002, 46, 305–310. 18. X. Zhao, T. Jing, Y. Gao, G. Qiao, J. Zhou, and W. Wang: ‘Annealing behavior of nano-layered steel produced... by heavy cold-rolling of lath martensite’, Materials Science & Engineering A, 2005, 397, 117–121. 19. R. Ueji, N. Tsuji, Y. Minamino, and Y. Koizumi: ‘Ultragrain refinement of plain low carbon steel by cold-rolling and annealing of martensite...

  19. Multiply Complex, Non-Toxic, Anti-Fouling Surfaces Designed for Marine and Biomedical Applications 

    E-Print Network [OSTI]

    Pollack, Kevin A

    2014-12-09

    (N00014-10-1-0527 and N00014-14-1-0082). The Welch Foundation is gratefully acknowledged for support through the W. T. Doherty-Welch Chair in Chemistry, Grant No. A-0001. I would also like to thank Dr. Jing Wu of the Materials Characterization... Facility at Texas A&M University for her help with the XPS. For Chapter III, I would like to thank the Office of Naval Research (N00014-14-1- 0082, N00014-13-1-0633 and N00014-13-1-0634). The Welch Foundation is gratefully vi acknowledged...

  20. Jining Sunrich Solar Energy aka Huahan | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View NewTexas: Energy ResourcesOrder atHills, Pennsylvania:Huayang Solar EnergyQingdaJingJining

  1. CEEG Shanghai Solar Science Technology | Open Energy Information

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    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmentalBowerbank, Maine:Kansas: Energy Resources Jump to:EnergyCEEG NanJing New Energy

  2. CEEI Asturias | Open Energy Information

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  3. CEEI GALICIA S A BIC GALICIA | Open Energy Information

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  4. CEEI Valencia | Open Energy Information

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  5. CEI Community Ventures | Open Energy Information

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  6. CEIA Business and Innovation Center of Alava | Open Energy Information

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  7. CEIN European Business and Innovation Center of Navarra | Open Energy

    Open Energy Info (EERE)

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  8. CEPIS | Open Energy Information

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  9. CEQ | Open Energy Information

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  10. CEQA Environmental Review | Open Energy Information

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  11. CEQA and Historical Resources Technical Assistance | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmentalBowerbank, Maine:Kansas: Energy Resources Jump to:EnergyCEEG NanJingCEPIS

  12. CERCLA | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmentalBowerbank, Maine:Kansas: Energy Resources Jump to:EnergyCEEG NanJingCEPISCERCLA Jump

  13. CET2001 Customer Led Network Revolution (Smart Grid Project) | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmentalBowerbank, Maine:Kansas: Energy Resources Jump to:EnergyCEEG NanJingCEPISCERCLA

  14. CETC Solar Energy | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmentalBowerbank, Maine:Kansas: Energy Resources Jump to:EnergyCEEG NanJingCEPISCERCLACETC

  15. UNIVERSITY OF CALIFORNIA, Velocity-space resolved fast-ion measurements in the DIII-D tokamak

    E-Print Network [OSTI]

    Heidbrink, William W.

    =2830ms with central ion temperature Ti=5keV and NBI injection energy Einj=80keV. Linear color scale function for the vertically-viewing FIDA system calculated for E =45keV. The minimum energy curve combination of gyro-angle, energy, and pitch to contribute to the measured spectrum at E . Figure 1.6. FIDA

  16. Internal conversion coefficients in (134)Cs, (137)Ba, and (139)La: A precise test of theory 

    E-Print Network [OSTI]

    Nica, N.; Hardy, John C.; Iacob, V. E.; Balonek, C.; Trzhaskovskaya, M. B.

    2008-01-01

    Recently we measured the ratio of K-shell internal conversion coefficients, alpha(K), for the 127.5-keV E3 transition in (134)Cs and the 661.7-keV M4 transition in (137)Ba. We here report a measurement of the 165.9-keV M1 transition in (139)La...

  17. 10/28/14, 1:55 PMAbstract Print View Page 1 of 3http://www.abstractsonline.com/Plan/AbstractPrintView.aspx?mID=3527&sKe...b-e272-489b-a12e-0392a61363e8&cKey=08ff6a21-cf84-43cb-8608-adf8709d3f11

    E-Print Network [OSTI]

    Shenoy, Krishna V.

    to manipulate a 3 degree of freedom haptic feedback device (delta.3, Force Dimension) fitted with a 3d-printed

  18. RHESSI and SphinX Common Observations

    E-Print Network [OSTI]

    Mrozek, Tomasz

    better than GOES XRM - energy resolution: ~0.4 keV Solar Photometer in X-rays (SphinX) Goal: to measure sensitive. #12;RHESSI (Ramaty High Energy Solar Spectroscopic Imager) - launched: February 2002 - 9 large) energy range: 3-8 keV (16 energy bands, E=0.3 keV) #12;Fluxes comparison SphinX DRM conversion factors

  19. Direct observations of nitric oxide produced by energetic electron precipitation in1 to the Antarctic middle atmosphere2

    E-Print Network [OSTI]

    Otago, University of

    to auroral NO entering the polar vortex and being efficiently50 transported downwards.51 Higher-energy (10 ke. The mesospheric18 NO peaked 2 days after enhanced NO at higher altitudes (110-150 km) measured by the19 SABER satellite, and 2 days after peaks in the >30 keV and >300 keV electron flux20 measured by POES, although

  20. FLOW IN RECTANGULAR MICROCHANNELS: AN EXPERIMENTAL INVESTIGATION

    E-Print Network [OSTI]

    Bahrami, Majid

    = contraction loss coe¢ cient, Ke = expansion loss coe¢ cient, L = microchannel length, m Lin = ow developing molding, hot embossing, micromachining with laser, and electrochemical or ultrasonic technologies [7

  1. Electronic and Spintronic Properties of Graphene

    E-Print Network [OSTI]

    Pi, Keyu

    2010-01-01

    and Spintronic Properties of Graphene by Ke-yu Pi Doctor ofof transition metal doped graphene over the last six years.steps including our graphene exfoliation, graphene

  2. Electronic and Spintronic Properties of Graphene

    E-Print Network [OSTI]

    Pi, Keyu

    2010-01-01

    Electronic and Spintronic Properties of Graphene by Ke-yu Piproperties and spintronic properties of transition metal45 Chapter 4: Spintronic properties of

  3. ACCELERATION OF SOLAR WIND AND PICKUP IONS BY SHOCKS G. Gloeckler1,2

    E-Print Network [OSTI]

    between 2.54 and 3.67 AU at this time. #12;Efficiency(Downstream/Upstream6-60keVProtonIntensity) 100 101

  4. Investigation of proton focusing and conversion efficiency for proton fast ignition

    E-Print Network [OSTI]

    Bartal, Teresa Jean

    2012-01-01

    After ignition, a thermonuclear burn wave spreads radiallythe shell to create the thermonuclear burn wave. At 10 keV,heating the plasma to thermonuclear temperatures. Protons

  5. Expeditious Data Center Sustainability, Flow, and Temperature Modeling: Life-Cycle Exergy Consumption Combined with a Potential Flow Based, Rankine Vortex Superposed, Predictive Method

    E-Print Network [OSTI]

    Lettieri, David

    2012-01-01

    Methodology iii Life-Cycle Assessment (LCA) . . . . . . .Values altered in LCA sensitivity1 xi ISO IT KE LCA LCEA MIPS PDU PG&E SCOPE UPS

  6. Contract DE-AC06-08RL14788

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    were completed. Initial review of the conceptual design began in November. Continued sediment load-out of 183.2KE Basin. Continued with erecting, scaffolding and demolition...

  7. Characterization of Individual Nanoparticles and Applications of Nanoparticles in Mass Spectrometry 

    E-Print Network [OSTI]

    Rajagopal Achary, Sidhartha Raja

    2011-08-08

    ................................................................... 31 2-8 Yields of Al oxide clusters ([Al2O3)nAlO2] - as a function of integer n in the molecular formula for the 3 samples a). 136 keV Au400 4+ and b). 26 keV C60... + .......................................................................................... 33 2-9 Yields of Al oxide clusters ([Al2O3)nOH] -) as a function of integer n in the molecular formula for the 3 samples with a) 136 keV Au400 4+ and b). 26 keV C60...

  8. HIGH CURRENT D- PRODUCTION BY CHARGE EXCHANGE IN SODIUM

    E-Print Network [OSTI]

    Hooper, E.B.

    2011-01-01

    good beam optics at the 1 keV energy and below required forto relatively high energies. optics is goou. Uo)~ but the

  9. 2005 Peered Reviewed Archival Publications Ahluwalia, R.S. and S. Govindarajulu*

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    -384. (MAE) Barth, K.E., D.W. White, J.E. Righman, and L. Yang. 2005. Evaluation of web compactness limits

  10. Pair instability supernovae of very massive population III stars...

    Office of Scientific and Technical Information (OSTI)

    In red supergiant progenitors, the amplitudes of these instabilities are sufficient to mix the supernova ejecta. less Authors: Chen, Ke-Jung ; Woosley, Stan 1 ; Heger,...

  11. Liverpool, June 2007 Synthesis of heavy nuclei

    E-Print Network [OSTI]

    Zilges, Andreas

    (,n) and 187Re(,n) #12;Determination of reaction yield Energy [keV] Decay 147,149Nd -: 147Nd147Pm -: 149Nd149Pm

  12. The Requirement for Carotenoids in the Assembly and Function of the Photosynthetic Complexes in

    E-Print Network [OSTI]

    .K.E., T.W., S.P.); Istituto di Biofisica (S.S.) and Insituto di Biologia e Biotecnologia Agraria (A

  13. TITLE AUTHORS SUBJECT SUBJECT RELATED DESCRIPTION PUBLISHER AVAILABILI...

    Office of Scientific and Technical Information (OSTI)

    Hysteresis in single and polycrystalline iron thin films Major and minor loops first order reversal curves and Preisach modeling Cao Yue Xu Ke Jiang Weilin Droubay Timothy...

  14. Suzaku monitoring of hard X-ray emission from ? Carinae over a single binary orbital cycle

    SciTech Connect (OSTI)

    Hamaguchi, Kenji; Corcoran, Michael F.; Yuasa, Takayuki; Ishida, Manabu; Pittard, Julian M.; Russell, Christopher M. P.

    2014-11-10

    The Suzaku X-ray observatory monitored the supermassive binary system ? Carinae 10 times during the whole 5.5 yr orbital cycle between 2005 and 2011. This series of observations presents the first long-term monitoring of this enigmatic system in the extremely hard X-ray band between 15 and 40 keV. During most of the orbit, the 15-25 keV emission varied similarly to the 2-10 keV emission, indicating an origin in the hard energy tail of the kT ? 4 keV wind-wind collision (WWC) plasma. However, the 15-25 keV emission declined only by a factor of three around periastron when the 2-10 keV emission dropped by two orders of magnitude due probably to an eclipse of the WWC plasma. The observed minimum in the 15-25 keV emission occurred after the 2-10 keV flux had already recovered by a factor of ?3. This may mean that the WWC activity was strong, but hidden behind the thick primary stellar wind during the eclipse. The 25-40 keV flux was rather constant through the orbital cycle, at the level measured with INTEGRAL in 2004. This result may suggest a connection of this flux component to the ?-ray source detected in this field. The helium-like Fe K? line complex at ?6.7 keV became strongly distorted toward periastron as seen in the previous cycle. The 5-9 keV spectra can be reproduced well with a two-component spectral model, which includes plasma in collision equilibrium and a plasma in non-equilibrium ionization (NEI) with ? ? 10{sup 11} cm{sup –3} s{sup –1}. The NEI plasma increases in importance toward periastron.

  15. On the evolution of word usage of classical Chinese poetry

    E-Print Network [OSTI]

    Liu, Liang

    2015-01-01

    The hierarchy of classical Chinese poetry has been broadly acknowledged by a number of studies in Chinese literature. However, quantitative investigations about the evolution of classical Chinese poetry are limited. The primary goal of this study is to provide quantitative evidence of the evolutionary linkages, with emphasis on word usage, among different period genres for classical Chinese poetry. Specifically, various statistical analyses were performed to find and compare the patterns of word usage in the poems of nine period genres, including shi jing, chu ci, Han shi , Jin shi, Tang shi, Song shi, Yuan shi, Ming shi, and Qing shi. The result of analysis indicates that each of nine period genres has unique patterns of word usage, with some Chinese characters being preferably used by the poems of a particular period genre. The analysis on the general pattern of word preference implies a decreasing trend in the use of ancient Chinese characters along the timeline of dynastic types of classical Chinese poetr...

  16. The pair-wise velocity dispersion of galaxies: effects of non radial motions

    E-Print Network [OSTI]

    A. Del Popolo

    2001-04-25

    I discuss the effect of non-radial motions on the small-scale pairwise peculiar velocity dispersions of galaxies (PVD) in a CDM model. I calculate the PVD for the SCDM model by means of the refined cosmic virial theorem (CVT) (Suto & Jing 1997) and taking account of non-radial motions by means of Del Popolo & Gambera (1998) model. I compare the results of the present model with the data from Davis & Peebles (1983), the IRAS value at 1 h{-1} Mpc of Fisher et al. (1993) and Marzke et al. (1995). I show that while the SCDM model disagrees with the observed values, as pointed out by several authors (Peebles 1976, 1980; Davis & Peebles 1983; Mo et. al 1993; Jing et al. 1998), taking account of non-radial motions produce smaller values for the PVD. At r <=1 h^{-1} Mpc the result is in agreement with Bartlett & Blanchard (1996) (hereafter BB96). At the light of this last paper, the result may be also read as a strong dependence of the CVT prediction on the model chosen to describe the mass distribution around galaxies, suggesting that the CVT cannot be taken as a direct evidence of a low density universe. Similarly to what shown in Del Popolo & Gambera (1999, 2000) (hereafter DG99, DG00), Del Popolo et al. (1999), the agreement of our model to the observational data is due to a scale dependent bias induced by the presence of non-radial motions. Since the assumptions on which CVT is based have been questioned by several authors (BB96; SJ97), I also calculated the PVD using the redshift distortion in the redshift-space correlation function, \\xi_z(r_p,\\pi), and I compared it with the PVD measured from the Las Campanas Redshift Survey by J98. The result confirms that non-radial motions influence the PVD making them better agree with observed data.

  17. Physics of Superthermal Ions in Tokamak Fusion Test Reactor Plasmas

    E-Print Network [OSTI]

    Budny, Robert

    --General Atomics, M. Petrov--Ioffe Institute, D. Spong--ORNL Abstract In magnetically-confined fusion plasmas, superthermal ions with typical energies of tens to hundreds of keV are often used to heat the plasma to temperatures where the fusion reaction rate is significant, ie Ti>5 keV. These ions can originate from

  18. Ned Sauthoff U.S. ITER Planning Officer

    E-Print Network [OSTI]

    -breaking effects: ­ collisions ­ non-axisymmetric instabilities #12;Elements of an Integrated Tokamak Plasma Wall, atomic physics plasma-wall interaction; control by magnetics, RF/NBI heating Ion Temperature (keV) LawsonFusionParameter,niTiE(1020m-3kevs) Central Ion Temperature (keV) Tokamaks

  19. Mechanisms of Postsynthesis Doping of Boron Nitride Nanostructures with Carbon from First-Principles Simulations

    E-Print Network [OSTI]

    Krasheninnikov, Arkady V.

    , but alternat- ing boron and nitrogen atoms substitute for carbon. This system is a semiconductor with a gap,15] at high (300 keV) electron energies used in the experiments. Moreover, using essentially the same technique, C impurities were introduced into BN sheets at electron energies of 60 keV [16], which is below

  20. UMass Amherst adalah kampus unggulan dari sistem Universi-tas Massachusetts. Universitas ini terletak di Western Massachu-

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    UMass Amherst adalah kampus unggulan dari sistem Universi- tas Massachusetts. Universitas ini. Kampus ini mudah dijangkau dari banyak daerah metropolitan yang paling bersemangat dan menarik di negara ini. Sebagai contoh, UMass Amherst berada di 118 kilometer ke barat dari Boston, 219 kilometer ke

  1. fur Mathematik in den Naturwissenschaften

    E-Print Network [OSTI]

    for multi-mode states by Zong-Guo Li, Shao-Ming Fei, Zhi-Xi Wang, and Ke Wu Preprint no.: 1 2007 #12;#12;Entanglement conditions for multi-mode states Zong-Guo Li1 , Shao-Ming Fei1,2 , Zhi-Xi Wang1 and Ke Wu1 1

  2. Superheated microdrops as cold dark matter detectors J. I. Collar*

    E-Print Network [OSTI]

    radiation while responsive to nuclear recoils of energies few keV. They operate on the same principle to distinguish nuclear recoils in the keV energy range from similar energy depo- sitions by minimum ionizing as the bubble chamber, but offer unattended, continuous, and safe operation at room temperature and atmospheric

  3. DNA methylation map of mouse and human brain identifies target genes in Alzheimer's disease

    E-Print Network [OSTI]

    2013-01-01

    PLoS One 2009; 2: e895. Song CX, Szulwach KE, Fu Y, Dai Q,Szulwach KE, Li X, Li Y, Song CX, Wu H, Dai Q, et al. 5-hmC-cells), cerebral cortex (CX, CA1, CA3 and den- tate gyrus)

  4. The Non Negative Least Square Applied to the Full Spectrum Analysis A. Caciolli2,3, G. Bezzon1, G. Buso1, C. Broggini2, I. Callegari3, T. Colonna3, G. Fiorentini1,4,5,

    E-Print Network [OSTI]

    Roma "La Sapienza", Università di

    the effect of nuclear accidents or other human activities. Among the RAD-MONITOR experiment several detection. 137Cs is given in Gy/y. During the calibration of the system the fundamental spectra (the S matrix inside a thick lead shielding. Only the energy range from 300 keV up to 2900 keV is considered

  5. A NEW HIGH ENERGY RESOLUTION NEUTRON TRANSMISSION DETECTOR SYSTEM AT THE GAERTTNER LINAC LABORATORY

    E-Print Network [OSTI]

    Danon, Yaron

    Laboratory P.O. Box 1072, Schenectady, New York 12301-1072 A new high energy resolution modular neutronA NEW HIGH ENERGY RESOLUTION NEUTRON TRANSMISSION DETECTOR SYSTEM AT THE GAERTTNER LINAC LABORATORY capabilities at the Laboratory in and above the resolved resonance energy region from 1 keV to 600 ke

  6. Scalable Compilers for Group Key Establishment : Two/Three Party to Group

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    Scalable Compilers for Group Key Establishment : Two/Three Party to Group S. Sree Vivek1, , S presents the first scalable, efficient and generic compilers to construct group key exchange (GKE) protocols from two/three party key exchange (2-KE/3-KE) protocols. We propose three different compilers

  7. Scalable Compilers for Group Key Establishment : Two/Three Party to Group

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    Scalable Compilers for Group Key Establishment : Two/Three Party to Group S. Sree Vivek 1,# , S presents the first scalable, e#cient and generic compilers to construct group key exchange (GKE) protocols from two/three party key exchange (2­KE/3­KE) protocols. We propose three di#erent compilers where

  8. Collisions of low-energy antiprotons with molecular hydrogen: ionization, excitation and stopping power

    E-Print Network [OSTI]

    Lühr, Armin

    2008-01-01

    A time-dependent coupled-channel approach was used to calculate ionization, excitation, and energy-loss cross sections as well as energy spectra for antiproton and proton collisions with molecular hydrogen for impact energies 8 keV < E < 4000 keV.

  9. Precise measurement of alpha(K) for the M4 transition from Ir-193(m): A test of internal-conversion theory 

    E-Print Network [OSTI]

    Nica, N.; Hardy, John C.; Iacob, VE; Raman, S.; Nestor, CW; Trzhaskovskaya, MB.

    2004-01-01

    The 10.5-day isomer in Ir-193 decays by a single 80.2-keV M4 transition directly to the ground state of that nucleus. We have measured the total intensity of K x rays relative to 80.2-keV gamma rays for this transition to ...

  10. CARBON -14 PHYSICAL DATA

    E-Print Network [OSTI]

    Vallino, Joseph J.

    CARBON - 14 [14C] PHYSICAL DATA · Beta Energy: 156 keV (maximum) 49 keV (average) (100% abundance on wipes. #12;RADIATION MONITORING DOSIMETERS · Not needed (beta energy too low). · 14C Beta Dose Rate: 6) · Effective Half-Life: 40 days (unbound) · Specific Activity: 4460 mCi/gram · Maximum Beta Range in Air: 24

  11. Isopycnal Eddy Diffusivities and Critical Layers in the Kuroshio Extension from an Eddying Ocean Model

    E-Print Network [OSTI]

    Griesel, Alexa

    in the southern recirculation gyre region, near topographic obstacles and down- stream in the KE jet, where, correlate well with the magnitudes of eddy velocity. The KE jet suppresses cross- stream mixing only in some better than those in bins defined by a regular geographic grid. Cross-stream diffusivities are elevated

  12. TEM AND RBS STUDIES OF SINGLE AND DOUBLE DISCRETE BURIED DAMAGE LAYERS IN P+ IMPLANTED Si ON SUBSEQUENT LASER ANNEALING

    E-Print Network [OSTI]

    Sadana, D.K.

    2013-01-01

    Si,5 Xl01}cm2 120 KeV,RTi E I I I I I LA,0.9JA::m2 ENE XBLSi, 7.5 x1o 1 o/ cm 2 120 KeV,RTi RANDOM '-- . J C2

  13. arXiv:astroph/0206362 THE ASTROPHYSICAL JOURNAL, 578, IN PRESS, 2002, OCTOBER 10

    E-Print Network [OSTI]

    Boehringer, Hans

    keV cm 2 . This value is high compared both to the observed entropy floor of #24; 100 keV cm 2 and to the expected value from gravitational heating. We suggest that the observed entropy profile in most groups at densities exceeding 500 times the critical is purely driven by non­gravitational heating processes. After

  14. TR-IIS-08-004 MaXIC-Q: A Fully Automated Generic

    E-Print Network [OSTI]

    Chen, Sheng-Wei

    -Chiang Tsou, Paul Chuan-Yih Yu, Yi-Ju Chen, Ke-Shiuan Lynn, Wen-Chi Chou, Yu-Ju Chen, Ting-Yi Sung, and Wen-Chiang Tsou1 , Paul Chuan-Yih Yu1 , Yi-Ju Chen2 , Ke-Shiuan Lynn1 , Wen-Chi Chou1 , Yu-Ju Chen2 , Ting-Yi Sung

  15. High-Accuracy Calibration of the HXDS Flow Proportional Counter for AXAF at the PTB Laboratory at BESSY

    E-Print Network [OSTI]

    Wargelin, Bradford J.

    High-Accuracy Calibration of the HXDS Flow Proportional Counter for AXAF at the PTB Laboratory at higher energies, the detection system comprises seven flow proportional counters (FPCs) and one energy range (0.2 keV to 1 .7 keV). Keywords: proportional counters, detectors, calibration, x

  16. Review: Konferenca o Pou?evanju Južnoslovanskih Jezikov in Književnosti

    E-Print Network [OSTI]

    Ul?nik, Natalija

    2013-09-17

    v Pragi. Na tridnevni konfe­ renci (od 30. maja do 1. junija 2013) so ???????????????????????????????????????? Slovaške, Poljske, Slovenije, Hrvaške, Bosne in Hercegovine, Srbije, Makedo­ ?????????????????????????????????????? Plenarnemu predavanju uglednega ????????... ???? ? VESNA ????????? IVAN ???????? SAN? DRA ???????? ????? ??????? ANA PETROV (30. 5. in 1. 6. 2013)? (2) Bol­ garski in makedonski jezik – sodelu­ ????????????? ???????? ??? ????? ???? ? ???? ????????? ??? ?? ????? ??...

  17. HAS 222d/253e Energy & Environment P.B. Rhines, J. Wright, E.Lindahl, R.Koon

    E-Print Network [OSTI]

    to KE of the `river'. Where has the `lost' energy gone? Hydropower is a huge source of energy River: generating a flow in a water channel with electric propulsion. See if you can estimate the kinetic energy (KE) in the water (water has a mass density of 1000 kg per cubic meter). Then, turn off

  18. FORMATION OF HYDROGEN, OXYGEN, AND HYDROGEN PEROXIDE IN ELECTRON-IRRADIATED CRYSTALLINE WATER ICE

    E-Print Network [OSTI]

    Kaiser, Ralf I.

    also present evidence on the involvement of hydroxyl radicals and possibly oxygen atoms as building the major constituent on the surfaces of small solar system objects such as Kuiper Belt objects (de Bergh to irradiation by energetic species from the solar wind (keV particles), the Galactic cosmic radiation field (ke

  19. Functional Brain Connectivity during Emotion Regulation and Applications to Bipolar Disorder

    E-Print Network [OSTI]

    Torrisi, Salvatore John

    2013-01-01

    emotions. Emotion 12, 229– Penny, W.D. , 2012. ComparingNeuroImage 59, 319–330. Penny, W.D. , Stephan, K.E. ,PLoS Comput Biol 6, e1000709. Penny, W.D. , Stephan, K.E. ,

  20. Stable Electron Beams With Low Absolute Energy Spread From a Laser Wakefield Accelerator With Plasma Density Ramp Controlled Injection

    E-Print Network [OSTI]

    Geddes, Cameron Guy Robinson

    -keV level energy spread and central energy sta- bility by using the plasma density profile to control self is reached. Because dephasing limits electron energy gain [2], low densities ( to order of 100 keV at GeV energies and beyond. RESULTS In the present experiments, the density profile

  1. A new measurement of the cosmic X-ray background

    E-Print Network [OSTI]

    A. Moretti; C. Pagani; G. Cusumano; S. Campana; M. Perri; A. Abbey; M. Ajello; A. P. Beardmore; D. Burrows; G. Chincarini; O. Godet; C. Guidorzi; J. E. Hill; J. Kennea; J. Nousek; J. P. Osborne; G. Tagliaferri

    2008-12-09

    We present a new measurement of the cosmic X-ray background (CXRB) in the 1.5-7 keV energy band, performed by exploiting the Swift X-ray telescope (XRT) data archive. We also present a CXRB spectral model in a wider energy band (1.5-200 keV), obtained by combining these data with the recently published Swift-BAT measurement. From the XRT archive we collect a complete sample of 126 high Galactic latitude gamma-ray burst (GRB) follow-up observations. This provides a total exposure of 7.5 Ms and a sky-coverage of 7 square degrees which represents a serendipitous survey, well suited for a direct measurement of the CXRB in the 1.5-10 keV interval. Our work is based on a complete characterization of the instrumental background and an accurate measurement of the stray-light contamination and vignetting calibration. We find that the CXRB spectrum in the 1.5-7 keV energy band can be equally well fitted by a single power-law with photon index Gamma=1.47+/-0.07 or a single power-law with photon index Gamma=1.41+/-0.06 and an exponential roll-off at 41 keV. The measured flux in the 2-10 keV energy band is 2.18+/-0.13 E-11 erg/(cm2 s deg2) in the 2-10 keV band. Combining Swift-XRT with Swift-BAT (15-200 keV) we find that, in the 1.5-200 keV band, the CXRB spectrum can be well described by two smoothly-joined power laws with the energy break at 29.0+/-0.5 keV corresponding to a nu F_nu peak located at 22.4+/-0.4 keV. Taking advantage of both the Swift high energy instruments (XRT and BAT), we produce an analytical description of the CXRB spectrum over a wide (1.5-200 keV) energy band. This model is marginally consistent with the HEAO1 measurement (~10% higher at energies higher than 20 keV, while it is significantly (30%) higher at low energies (2-10 keV).

  2. ORIGAMIX, a CdTe-based spectro-imager development for nuclear applications

    E-Print Network [OSTI]

    S. Dubos; H. Lemaire; S. Schanne; O. Limousin; F. Carrel; V. Schoepff; C. Blondel

    2015-02-05

    The Astrophysics Division of CEA Saclay has a long history in the development of CdTe based pixelated detection planes for X and gamma-ray astronomy, with time-resolved imaging and spectrometric capabilities. The last generation, named Caliste HD, is an all-in-one modular instrument that fulfills requirements for space applications. Its full-custom front-end electronics is designed to work over a large energy range from 2 keV to 1 MeV with excellent spectroscopic performances, in particular between 10 and 100 keV (0.56 keV FWHM and 0.67 keV FWHM at 13.9 and 59.5 keV). In the frame of the ORIGAMIX project, a consortium based on research laboratories and industrials has been settled in order to develop a new generation of gamma camera. The aim is to develop a system based on the Caliste architecture for post-accidental interventions or homeland security, but integrating new properties (advanced spectrometry, hybrid working mode) and suitable for industry. A first prototype was designed and tested to acquire feedback for further developments. In this study, we particularly focused on spectrometric performances with high energies and high fluxes. Therefore, our device was exposed to energies up to 700 keV (133Ba, 137Cs) and we measured the evolution of energy resolution (0.96 keV at 80 keV, 2.18 keV at 356 keV, 3.33 keV at 662 keV). Detection efficiency decreases after 150 keV, as Compton effect becomes dominant. However, CALISTE is also designed to handle multiple events, enabling Compton scattering reconstruction, which can drastically improve detection efficiencies and dynamic range for higher energies up to 1408 keV (22Na, 60Co, 152Eu) within a 1-mm thick detector. In particular, such spectrometric performances obtained with 152Eu and 60Co were never measured before with this kind of detector.

  3. Preparation of Neutron-activated Xenon for Liquid Xenon Detector Calibration

    E-Print Network [OSTI]

    Ni, K; Wongjirad, T M; Kastens, L; Manzur, A; McKinsey, D N

    2007-01-01

    We report the preparation of neutron-activated xenon for the calibration of liquid xenon (LXe) detectors. Gamma rays from the decay of xenon metastable states, produced by fast neutron activation, were detected and their activities measured in a LXe scintillation detector. Following a five-day activation of natural xenon gas with a Cf-252 (4 x 10^5 n/s) source, the activities of two gamma ray lines at 164 keV and 236 keV, from Xe-131m and Xe-129m metastable states, were measured at about 95 and 130 Bq/kg, respectively. We also observed three additional lines at 35 keV, 100 keV and 275 keV, which decay away within a few days. No long-lifetime activity was observed after the neutron activation.

  4. Preparation of Neutron-activated Xenon for Liquid Xenon Detector Calibration

    E-Print Network [OSTI]

    K. Ni; R. Hasty; T. M. Wongjirad; L. Kastens; A. Manzur; D. N. McKinsey

    2007-09-27

    We report the preparation of neutron-activated xenon for the calibration of liquid xenon (LXe) detectors. Gamma rays from the decay of xenon metastable states, produced by fast neutron activation, were detected and their activities measured in a LXe scintillation detector. Following a five-day activation of natural xenon gas with a Cf-252 (4 x 10^5 n/s) source, the activities of two gamma ray lines at 164 keV and 236 keV, from Xe-131m and Xe-129m metastable states, were measured at about 95 and 130 Bq/kg, respectively. We also observed three additional lines at 35 keV, 100 keV and 275 keV, which decay away within a few days. No long-lifetime activity was observed after the neutron activation.

  5. Exploring the {sup 22}Ne(p,?){sup 23}Na reaction at LUNA and at HZDR

    SciTech Connect (OSTI)

    Cavanna, Francesca [Dipartimento di fisica, Università di Genova, and INFN Sezione di Genova, Genova (Italy); Collaboration: LUNA Collaboration

    2014-05-09

    The {sup 22}Ne(p,?){sup 23}Na reaction is involved in the hydrogen burning NeNa cycle. This determines the nucleosynthesis of the Ne and Na isotopes in the Red Giant Branch and Asymptotic Giant Branch phases of stellar evolution. In the energy range relevant for astrophysics (20 keV < E < 600 keV), the {sup 22}Ne(p,?){sup 23}Na reaction rate is highly uncertain because of the contribution of a large number of resonances never measured directly. A related study is under preparation at the Laboratory for Underground Nuclear Astrophysics (LUNA), in the Gran Sasso National Laboratory, and it will cover the energy range 100 keV < E < 400 keV. Meanwhile, a measurement at higher energies (i.e. 436 keV) has been carried out at the Tandetron accelerator of the HZDR (Helmholtz Zentrum Dresden Rossendorf) in Germany. Some preliminary results will be presented.

  6. Constraining the S factor of 15N(p,g)16O at Astrophysical Energies

    E-Print Network [OSTI]

    LeBlanc, P J; Goerres, J; Junker, M; Azuma, R; Beard, M; Bemmerer, D; Best, A; Broggini, C; Caciolli, A; Corvisiero, P; Costantini, H; Couder, M; deBoer, R; Elekes, Z; Falahat, S; Formicola, A; Fulop, Zs; Gervino, G; Guglielmetti, A; Gustavino, C; Gyurky, Gy; Kaeppeler, F; Kontos, A; Kuntz, R; Leiste, H; Lemut, A; Li, Q; Limata, B; Marta, M; Mazzocchi, C; Menegazzo, R; O'Brien, S; Palumbo, A; Prati, P; Roca, V; Rolfs, C; Alvarez, C Rossi; Somorjai, E; Stech, E; Straniero, O; Strieder, F; Tan, W; Terrasi, F; Trautvetter, H P; Uberseder, E; Wiescher, M

    2010-01-01

    The 15N(p,g)16O reaction represents a break out reaction linking the first and second cycle of the CNO cycles redistributing the carbon and nitrogen abundances into the oxygen range. The reaction is dominated by two broad resonances at Ep = 338 keV and 1028 keV and a Direct Capture contribution to the ground state of 16O. Interference effects between these contributions in both the low energy region (Ep < 338 keV) and in between the two resonances (338 keV) can dramatically effect the extrapolation to energies of astrophysical interest. To facilitate a reliable extrapolation the 15N(p,g)16O reaction has been remeasured covering the energy range from Ep=1800 keV down to 130 keV. The results have been analyzed in the framework of a multi-level R-matrix theory and a S(0) value of 39.6 keV b has been found.

  7. ASCA PV observations of the Seyfert 2 galaxy NGC 4388 the obscured nucleus and its X-ray emission

    E-Print Network [OSTI]

    Iwasawa, K; Ueno, S; Awaki, H; Fukazawa, Y; Matsushita, K; Makishima, K

    1996-01-01

    We present results on the Seyfert 2 galaxy NGC4388 in the Virgo cluster observed with ASCA during its PV phase. The 0.5-10 keV X-ray spectrum consists of multiple components; (1) a continuum component heavily absorbed by a column density NH = 4E23 cm-2 above 3 keV; (2) a strong 6.4 keV line (EW = 500 eV); (3) a weak flat continuum between 1 and 3 keV; and (4) excess soft X-ray emission below 1 keV. The detection of strong absorption for the hard X-ray component is firm evidence for an obscured active nucleus in this Seyfert 2 galaxy. The absorption corrected X-ray luminosity is about 2E42 erg/s. This is the first time that the fluorescent iron-K line has been detected in this object. The flat spectrum in the intermediate energy range may be a scattered continuum from the central source. The soft X-ray emission below 1 keV can be thermal emission from a temperature kT = 0.5 keV, consistent with the spatially extended emission observed by ROSAT HRI. However, the low abundance (0.05 Zs) and high mass flow rate r...

  8. Spectral Study of the Galactic Ridge X-ray Emission with Suzaku

    E-Print Network [OSTI]

    Ebisawa, Ken; Tanaka, Yasuo; Koyama, Katsuji; Ezoe, Yuichiro; Bamba, Aya; Kokubun, Motohide; Hyodo, Yoshiaki; Tsujimoto, Masahiro; Takahashi, Hiromitsu

    2007-01-01

    We have observed a typical Galactic plane field at (l,b) = (28.46d, -0.20d) with Suzaku for 100 ksec to carry out a precise spectral study of the Galactic Ridge X-ray Emission (GRXE). The field is known to be devoid of X-ray point sources brighter than ~2 x 10^{-13} ergs s^{-1} cm^{-2} (2--10 keV), and already deeply observed with Chandra. Thanks to the low and stable background and high spectral resolution of Suzaku, we were able to resolve, for the first time, three narrow iron K-emission lines from low-ionized (6.41 keV), helium-like (6.67 keV), and hydrogenic ions (7.00 keV) in the GRXE spectrum. These line features constrain the GRXE emission mechanisms: The cosmic-ray ion charge exchange model or the non-equilibrium ionization plasma model are unlikely, since they require either broad emission lines or lines at intermediate ionization states. Collisional ionization equilibrium plasma is the likely origin for the 6.67 keV and 7.00 keV lines, while origin of the 6.41 keV line, which is due to fluorescence...

  9. 55-Gallon Drum Attenuation Corrections for Waste Assay Measurements

    SciTech Connect (OSTI)

    Casella, V.R.

    2002-04-03

    The present study shows how the percent attenuation for low-level waste (LLW), carbon-steel 55-gallon drums (44 and 46 mil) and for transuranic (TRU) DOT Type 7A 55-gallon drums (approximately 61 mil) changes with gamma energy from 60 keV to 1400 keV. Attenuation for these drums is in the range of 5 to 15 percent at energies from 400 to 1400 keV and from 15 to 35 percent at energies from 120 to 400 keV. At 60 keV, these drums attenuate 70-80 percent of the gamma rays. Correction factors were determined in order to correct for gamma attenuation of a TRU drum if a calibration is performed with a LLW drum. These correction factors increase the activities of the TRU drum by from 10 percent to 2 percent in the energy range of 165 to 1400 keV, with an increase of about 50 percent at 60 keV. Correction factors for TRU drums and for analyses without a drum were used to adjust the percent yield for frequently measured gamma rays, so that the assay libraries could be modified to provide the drum attenuation corrections.

  10. Image plate characterization and absolute calibration to low kilo-electron-volt electrons

    SciTech Connect (OSTI)

    Busold, S.; Philipp, K.; Otten, A.; Roth, M.

    2014-11-15

    We report on the characterization of an image plate and its absolute calibration to electrons in the low keV energy range (1–30 keV). In our case, an Agfa MD4.0 without protection layer was used in combination with a Fuji FLA7000 scanner. The calibration data are compared to other published data and a consistent picture of the sensitivity of image plates to electrons is obtained, which suggests a validity of the obtained calibration up to 100 keV.

  11. Observation of excited states in /sup 128/Ba

    SciTech Connect (OSTI)

    Zhao Zhi-zheng; Guo Ying-xiang; Pan Zong-you; Xiao Jian-min; Lei Xiang-guo; Liu Hong-ye; Sun Xi-jun

    1987-01-01

    Excited states in /sup 128/Ba have been investigated via the /sup 120/Sn (/sup 12/C, 4n..gamma..) /sup 128/Ba reaction by means of in-beam gamma spectroscopy. A 12/sup +/ state other than the previously reported one is observed according to the properties of the 935.0 keV ..gamma..-ray. It does not belong to the ground-state band. Two new interband transitions, 224.8 keV and 632.7 keV, are observed and assigned to sidefeeding between the negative-parity band and ground-state band.

  12. The R and D progress of 4 MW EAST-NBI high current ion source

    SciTech Connect (OSTI)

    Xie, Yahong Hu, Chundong; Liu, Sheng; Xu, Yongjian; Liang, Lizhen; Xie, Yuanlai; Sheng, Peng; Jiang, Caichao; Liu, Zhimin

    2014-02-15

    A high current ion source, which consists of the multi-cusp bucket plasma generator and tetrode accelerator with multi-slot apertures, is developed and tested for the Experimental Advanced Superconducting Tokamak neutral beam injector. Three ion sources are tested on the test bed with arc power of 80 kW, beam voltage of 80 keV, and beam power of 4 MW. The arc regulation technology with Langmuir probes is employed for the long pulse operation of ion source, and the long pulse beam of 50 keV @ 15.5 A @ 100 s and 80 keV @ 52A @ 1s are extracted, respectively.

  13. Subthreshold neutron interrogator for detection of radioactive materials

    DOE Patents [OSTI]

    Evans, Michael L. (Los Alamos, NM); Menlove, Howard O. (Los Alamos, NM); Baker, Michael P. (Los Alamos, NM)

    1980-01-01

    A device for detecting fissionable material such as uranium in low concentrations by interrogating with photoneutrons at energy levels below 500 keV, and typically about 26 keV. Induced fast neutrons having energies above 500 keV by the interrogated fissionable material are detected by a liquid scintillator or recoil proportional counter which is sensitive to the induced fast neutrons. Since the induced fast neutrons are proportional to the concentration of fissionable material, detection of induced fast neutrons indicate concentration of the fissionable material.

  14. Double-{beta} decay Q value of {sup 150}Nd

    SciTech Connect (OSTI)

    Kolhinen, V. S.; Eronen, T.; Gorelov, D.; Hakala, J.; Jokinen, A.; Kankainen, A.; Moore, I. D.; Rissanen, J.; Saastamoinen, A.; Suhonen, J.; Aeystoe, J. [Department of Physics, P. O. Box 35 (YFL), FI-40014 University of Jyvaeskylae (Finland)

    2010-08-15

    The double-{beta} decay Q value of {sup 150}Nd was determined by using the JYFLTRAP Penning trap mass spectrometer. The measured mass difference between {sup 150}Nd and {sup 150}Sm is 3371.38(20) keV. This new value deviates by 3.7 keV from the previously adopted value of 3367.7(22) keV and is a factor of 10 more precise. Accurate knowledge of this Q value is important because {sup 150}Nd is a primary candidate to be used in the search for neutrinoless double-{beta} decay modes in several experiments.

  15. Cross Sections for the Electron Activation of Gamma-Ray Fluorescence

    E-Print Network [OSTI]

    Silviu Olariu; Agata Olariu; Yoshiaki Ito; Takeshi Mukoyama

    2000-06-26

    We report cross sections for the direct excitation of gamma-ray transitions up to 200 keV by the transient electromagnetic fields of electrons from a beam, for incident kinetic energies of 500 keV and 5 MeV. The cross sections for the electron activation of gamma-ray fluorescence are of the order of 300 nanobarns for an electron incident kinetic energy of 500 keV, and are of the order of 10 microbarns for an electron incident kinetic energy of 5 MeV. The electron excitation of nuclear transitions may lead to the development of pulsed sources of gamma radiation of narrowly defined energy.

  16. TITLE AUTHORS SUBJECT SUBJECT RELATED DESCRIPTION PUBLISHER AVAILABILI...

    Office of Scientific and Technical Information (OSTI)

    We study the populations of X ray sources in the Milky Way in the keV band using a deep survey with the BAT instrument aboard the Swift observatory We present the logN logS...

  17. Disentangling the body weight-bone mineral density association among breast cancer survivors: an examination of the independent roles of lean mass and fat mass

    E-Print Network [OSTI]

    2013-01-01

    Wilson KE, Heymsfield SB: Dual energy X-Ray absorptiometrycancer, who underwent dual-energy X-ray absorptiometry scansderwent a whole-body dual-energy X-ray absorptiometry Page 2

  18. Enhanced Loss of Magnetic Mirror Trapped Fast Electrons by a Shear Alfven Wave

    E-Print Network [OSTI]

    Wang, Yuhou

    2013-01-01

    35 3.2 Fast electron de-II: De-trapping 100 keV electrons 4.1 Generation of awaves and electron de-trapping . . . . . . . . . . . . 62 5

  19. Characterization of Biofilm in 200W

    E-Print Network [OSTI]

    PNNL-23679 Characterization of Biofilm in 200W Fluidized Bed Reactors September 2014 MH Lee E ER Eisenhauer SD Saurey EA Cordova BD Lee EC Golovich KE Parker #12;#12;PNNL-23679 Characterization of Biofilm

  20. KT McDonald MAP Weekly Meeting September 13, 2013 1 In the staging scenarios, we consider various proton beam energies and beam powers.

    E-Print Network [OSTI]

    McDonald, Kirk

    ://accelconf.web.cern.ch/accelconf/HB2012/talks/weo3c05_talk.pdf p + Pb Collisions plotted vs. KE Pb + Pb collisions plotted vs. rapidity y

  1. Medium energy ion implantation of Germanium into heated Silicon 

    E-Print Network [OSTI]

    McCoy, John Curtis

    1993-01-01

    Medium energy ion implantation of Ge into heated Si was investigated. legh fluence implants of Ge were made at energies of 40 or 60 keV into Si substrates at room temperature or heated to 300'C or higher. ...

  2. "Title","Creator/Author","Publication Date","OSTI Identifier...

    Office of Scientific and Technical Information (OSTI)

    Efficient laser-induced 6 - 8 keV x-ray production from iron oxide aerogel and foil-lined cavity targets","Perez, F; Kay, J J; Patterson, R; Kane, J; Villette, B; Girard, F;...

  3. Xray Scatter Measurements from Thermally Slumped Thin Glass Substrates for the HEFT Hard Xray Telescopes

    E-Print Network [OSTI]

    , Charles J. Hailey b , Todd R. Decker b , Marcela Stern b David L. Windt c , Peter H. Mao d , Fiona A--50 keV range at a double­axis diffractometer at the Ørsted Laboratory, University of Copenhagen

  4. Hanford Site

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    20 117KE crane lifting roof panel.JPG Gallery: American Recovery and Reinvestment Act Title: 100K Area D&D 100K Area D&D Name: 100K Area D&D Document Date: 10162009 Keywords:...

  5. Hanford Site

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    8 117KE workers lifting roof.JPG Gallery: American Recovery and Reinvestment Act Title: 100K Area D&D 100K Area D&D Name: 100K Area D&D Document Date: 10162009 Keywords:...

  6. Hanford Site

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    19 117KE Worker directing roof panel lift.JPG Gallery: American Recovery and Reinvestment Act Title: 100K Area D&D 100K Area D&D Name: 100K Area D&D Document Date: 10162009...

  7. Turbulence and internal waves in tidal flow over topography

    E-Print Network [OSTI]

    Gayen, Bishakhdatta

    2012-01-01

    M. C. 2006 An estimate of tidal energy lost to turbulence atcant loss of low-mode tidal energy at 28.9 ? . Geophys. Res.of turbulent kinetic energy over a tidal cycle. Maximum T KE

  8. COMMUNICATIONS Characterization of the I3 radical by anion photoelectron spectroscopy

    E-Print Network [OSTI]

    Neumark, Daniel M.

    - electric valve. Anions are generated by crossing a 1 keV electron beam with the molecular beam role in one of the most fundamental reactions in gas phase kinetics, the recombination of I atoms

  9. GHS: A Performance System of Grid Computing Xian-He Sun, Ming Wu

    E-Print Network [OSTI]

    Sun, Xian-He

    Illinois Institute of Technology Chicago, Illinois 60616, USA {sun, wuming}@iit.edu Abstract Conventional and facilitate the formation of national scale distributed environments, Grid computing [FoKe04]. While much

  10. INVESTIGATING THE MECHANISM FOR THE FORMATION OF NITROUS OXIDE )] IN EXTRATERRESTRIAL ICES

    E-Print Network [OSTI]

    Kaiser, Ralf I.

    (N2) and carbon dioxide (CO2) ice mixture was irradiated at 10 K with 5 keV electrons to simulate and infrared spectral regions. As these are our primary methods for remotely iden- tifying rotations

  11. Real-time RBS analysis of plasma erosion in DIONISOS

    E-Print Network [OSTI]

    Peterson, Ethan E. (Ethan Eric)

    2013-01-01

    One of the primary scientific challenges still facing the development of commercial nuclear fusion reactors lies at the plasma-material boundary. Plasma temperatures greater than 10 million degrees Celsius (10 keV) require ...

  12. Toward a terahertz-driven electron gun

    E-Print Network [OSTI]

    Nanni, Emilio A.

    Femtosecond electron bunches with keV energies and eV energy spread are needed by condensed matter physicists to resolve state transitions in carbon nanotubes, molecular structures, organic salts, and charge density wave ...

  13. Search for: All records | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    Poco, J F ; et al Full Text Available April 2013 Efficient laser-induced 6 - 8 keV x-ray production from iron oxide aerogel and foil-lined cavity targets Perez, F ; Kay, J J ;...

  14. Search for: All records | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    perform these absolute x-ray calibrations. This paper presents the x-ray tube based high energy x-ray source delivering x-ray energies ranging from 0.9 to 10 keV by means ofmore...

  15. A Comprehensive review of abdominal infections

    E-Print Network [OSTI]

    Lopez, Nicole; Kobayashi, Leslie; Coimbra, Raul

    2011-01-01

    DA, Roberts KE, Flum DR: Hartmann’s colectomy and reversalDR: Primary anastomosis or Hartmann’s procedure for patientsFH, Tekkis PP, Fazio VW: Hartmann’s reversal is associated

  16. Chemical and Engineering Materials Richard Ibberson, Division Director

    E-Print Network [OSTI]

    Chemical and Engineering Materials Richard Ibberson, Division Director Melissa Richards1 , Division Administrative Assistant 03/02/2015 Engineering Materials Andrew Payzant, Group Leader Ke An VULCAN Dong Ma

  17. 7Be Solar Neutrino Measurement with KamLAND

    E-Print Network [OSTI]

    Gando, A.

    2014-01-01

    Be Solar Neutrino Measurement with KamLAND A. Gando, 1 Y.light on the question of solar metallicity. ACKNOWLEDGMENTSscattering rate of 862 keV 7 Be solar neutrinos based on a

  18. Experimental and numerical characterization of ion-cyclotron heated protons on the Alcator C-Mod tokamak

    E-Print Network [OSTI]

    Tang, Vincent, 1978-

    2006-01-01

    Energetic minority protons with -100 keV effective temperature are routinely created in Alcator C-Mod plasmas with the application of ICRF. A new multi-channel Compact Neutral Particle Analyzer is used to make measurements ...

  19. Morphological stability of Cu-Nb nanocomposites under high-energy collision cascades

    E-Print Network [OSTI]

    Zhang, Liang

    We use molecular dynamics and phase field simulations to demonstrate that Cu-Nb multilayered nanocomposites with individual layer thicknesses above 2–4?nm remain morphologically stable when subjected to 100?keV collision ...

  20. Has been Neutrinoless Double Beta Decay of 130Te observed by the CUORE experiment?

    E-Print Network [OSTI]

    ,

    2015-01-01

    A recent reconsideration of a theoretical process of a neutrinoless double beta decay points out that a signal of the decay should be shifted by a few keV from the Q-value for the 2{\\ss}0{\