Sample records for lear silverton rpd-sc

  1. Overview of the recent operation of the AAC and LEAR for the low-energy antiproton physics programme

    E-Print Network [OSTI]

    Baird, S A; Caspers, Friedhelm; Chanel, M; Chohan, V; Eriksson, T; Ley, R; Maury, S; Metzger, C; Möhl, D; Mulder, H; Pedersen, F; Tranquille, G

    1998-01-01T23:59:59.000Z

    This paper reviews the recent performance of the AAC and LEAR. Activities on the AAC include the successful exploitation of a magnetic horn as an antiproton collector lens and an energy-saving mode of operation, which has been possible since 1992, when LEAR became the only client of the AAC. LEAR worked in its full momentum range between 100 MeV/c and 2 GeV/c, with perform-ance (intensities, ejection modes and spill length) exceeding the design specifications. Improvements are described, which contributed to the quality of the beam delivered to experiments. The reliability and availability of the antiproton machines are also discussed.

  2. Recent Results on Lead-Ion Accumulation in LEAR for the LHC

    E-Print Network [OSTI]

    Baird, S A; Broere, J; Carli, Christian; Chanel, M; Hill, C; Ley, R; Lombardi, A M; MacCaferri, R; Maury, S; Möhl, D; Molinari, G; Mulder, H; Tanke, E; Tranquille, G; Varenne, F; Vretenar, Maurizio; Meshkov, I N; Syresin, E M

    1997-01-01T23:59:59.000Z

    To prepare dense bunches of lead ions for the LHC it has been proposed to accumulate the 4.2 MeV/u linac beam in a storage ring with electron cooling. A series of experiments is being performed in the low-energy ring LEAR to test this technique. First results were already reported at the Beam Crystallisation Workshop in Erice in November 1995. Two more recent runs to complement these investigations were concerned with: further study of the beam lifetime; the dependence of the cooling time on optical settings of the storage ring and on neutralization of the electron beam; tests in view of multiturn injection. New results obtained in these two runs in December 1995 and in April 1996 will be discussed in this contribution.

  3. Silverton, Ohio: Energy Resources | 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 onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro Industries Pvt LtdShawangunk, New York:SiG Solar GmbH JumpSilicium

  4. Extensions of systems : methods for structure and form in Silverton, Colorado

    E-Print Network [OSTI]

    Lovell, Steven Palmer

    1983-01-01T23:59:59.000Z

    An understanding of spatial structural systems in an environment is seen as a valuable method for observation and projection in design. This thesis makes use of explicit systems of form and method by which future development ...

  5. Mabou Mines' Lear: A Narrative of Collective Authorship

    E-Print Network [OSTI]

    Fischer, Iris Smith

    1993-01-01T23:59:59.000Z

    unimportant. Often the work is treated as though it were produced in a vacuum, without any relation to the artists' and audiences' lives or their awareness of what has been done on experimental stages. The unfortunate notion of isolating the work...

  6. CP, T, and CPT tests in neutral Kaon decays using tagged {ital K}{sup 0}, {ital K}{sup 0}at LEAR

    SciTech Connect (OSTI)

    Adler, R.; Alhalel, T. [University of Basle (Switzerland); Angelopoulos, A.; Apostolakis, A. [University of Athens (Greece); Aslanides, E. [CPPM, IN2P3-CNRS et Universite d`Aix-Marseille II (France); Backenstoss, G. [University of Basle (Switzerland); Bee, C.P. [CPPM, IN2P3-CNRS et Universite d`Aix-Marseille II (France); Behnke, O. [ETH-ITP Zuerich (Switzerland); Bennet, J. [University of Liverpool (United Kingdom); Bertin, V. [CPPM, IN2P3-CNRS et Universite d`Aix-Marseille II (France); Blanc, F. [University of Fribourg (Germany)]|[Paul-Scherrer-Institut (??); Bloch, P. [CERN (Switzerland); Bula, C. [Paul-Scherrer-Institut (??); Carlson, P. [KTH Stockholm (Sweden); Carroll, M. [University of Liverpool (United Kingdom); Carvalho, J. [LIP and University of Coimbra (Portugal); Cawley, E. [University of Liverpool (United Kingdom); Charalambous, S.; Chardalas, M. [University of Thessaloniki (Greece); Chardin, G. [DAPNIA/SPP, CE Saclay (France); Chertok, M.B. [Boston University (United States); Danielsson, M. [KTH Stockholm (Sweden); Cody, A. [University of Liverpool (United Kingdom); Dedoussis, S. [University of Thessaloniki (Greece); Dejardin, M. [CERN (Switzerland); Derre, J. [DAPNIA/SPP, CE Saclay (France); Dodgson, M. [University of Liverpool (United Kingdom); Duclos, J. [DAPNIA/SPP, CE Saclay (France); Ealet, A. [CPPM, IN2P3-CNRS et Universite d`Aix-Marseille II (France); Eckart, B. [University of Basle (Switzerland); Eleftheriadis, C. [University of Thessaloniki (Greece); Evangelou, I. [University of Ioannina (??); Faravel, L. [University of Fribourg (Germany)]|[CPPM, IN2P3-CNRS et Universite d`Aix-Marseille II (France); Fassnacht, P. [CPPM, IN2P3-CNRS et Universite d`Aix-Marseille II (France); Faure, J.L. [DAPNIA/SPP, CE Saclay (France); Felder, C. [University of Basle (Switzerland); Ferreira-Marques, R. [LIP and University of Coimbra (Portugal); Fetscher, W. [ETH-ITP Zuerich (Switzerland); Fidecaro, M.

    1995-05-10T23:59:59.000Z

    The CPLEAR experiment at CERN measures particle-antiparticle asymmetries of strangeness-tagged {ital K}{sup 0}, {ital K}{sup 0} decays to two-pion, three-pion, and semileptonic final states. The technique of CPLEAR is an alternative approach to previous CP-violation studies. It provides complementary information with different systematics and gives access to novel measurements. The precision of the CP-violation parameters {eta}{sub +{minus}} for {pi}{sup +}{pi}{sup {minus}}, {eta}{sub +{minus}0} for {pi}{sup +}{pi}{sup {minus}}{pi}{sup 0} and of the T-violation parameter {epsilon}{sub {ital T}} for {pi}{sup {plus_minus}}{ital e}{sup {minus_plus}}{nu} will be discussed for the data taken between 1990--1992. {copyright} {ital 1995} {ital American} {ital Institute} {ital of} {ital Physics}.

  7. Proceedings of the 17th Central Hardwood Forest Conference GTR-NRS-P-78 (2011) 665 INTRODUCTION

    E-Print Network [OSTI]

    2011-01-01T23:59:59.000Z

    promote oak recruitment and impede the development of red maple competition. Brose and Van Lear (1998 as a single, high-intensity burn (Loftis 1990, Brose and Van Lear 1998). OBJECTIVE The objective of this study

  8. Proceedings of the 4th Fire in Eastern Oak Forests Conference GTR-NRS-P-102 FIRE HISTORY IN A SOUTHERN APPALACHIAN DECIDUOUS FOREST

    E-Print Network [OSTI]

    and moisture gradients (Brose and others 2001, Delcourt and Delcourt 1997, Runkle 1985, van Lear and Waldrop

  9. Wedding Reception Menu Hors d' Oeuvres Buffet

    E-Print Network [OSTI]

    vegetable platters with dips Coffee, decaf coffee, hot tea, iced tea, and ice water Select six items from, coffee, decaf coffee, hot tea, iced tea, and ice water. Winter Park Mediterranean Herbed Chicken Sautéed beans, hominy, and cojito cheese $30.50 per person Silverton Chicken Roulade Medallions of chicken

  10. Ruth Fine, The Hebrew University of Konstanze Fliedl, University of Vienna

    E-Print Network [OSTI]

    Daniel, Rosenfeld

    Greiner, Eberhard Karls University Tübingen Jonathan Lear, University of Chicago Eveline List, University of Jerusalem Ethical Implications of the Unheimliche Eveline List, University of Vienna Mass Psychology

  11. Fire damage effects on red oak timber product value Joseph M. Marschall a,

    E-Print Network [OSTI]

    Stambaugh, Michael C

    ., 1996; Brose and Van Lear, 1998; Hartman, 2005; Nowacki and Abrams, 2008; Burton et al., 2011; Arthur et al., 2012; Brose et al., 2013). Many studies have documented the ability of oak trees to survive and Dawson, 1994; Regerbrugge and Smith, 1994; Brose and Van Lear, 1999). Public land management agencies

  12. http://www.pawuic.org/ Artist Rex Robinson, 2000, Kentucky Heritage Council

    E-Print Network [OSTI]

    Gray, Matthew

    , 41:721732. Brose, P. H., and D. H. Van Lear. 1998. Responses of hardwood advance regeneration to seasonal prescribed fires in oakdominated shelterwood stands. Can. J. For. Res. 28: 331339. Brose, P. H., D

  13. KERNEL BASED SYNTHETIC DISCRIMINANT FUNCTION FOR OBJECT RECOGNITION Kyu-Hwa Jeong, Puskal P. Pokharel, Jian-Wu Xu, Seungju Han, Jose C. Principe

    E-Print Network [OSTI]

    Slatton, Clint

    function (SDF) is proposed. The SDF is a well known 2- D correlation filter for object recognition. The proposed non- linear version of the SDF is derived from kernel-based lear- ning. The kernel SDF the performance of the linear SDF by incorporating the image's class higher order moments. We show that this ker

  14. Theoretical Bitcoin Attacks with less than Half of the Computational Power (draft)

    E-Print Network [OSTI]

    Theoretical Bitcoin Attacks with less than Half of the Computational Power (draft) Lear Bahack Abstract A widespread security claim of the Bitcoin system, presented in the original Bitcoin white, as the distributed Bitcoin network is ideally supposed to be. Propagation of the at- tacker's block can

  15. Video Mining with Frequent Itemset Configurations

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Video Mining with Frequent Itemset Configurations Till Quack1 , Vittorio Ferrari2 , and Luc Van Gool1 1 ETH Zurich 2 LEAR - INRIA Grenoble Abstract. We present a method for mining frequently arrangements of affine covariant regions. Our mining method is based on the class of frequent itemset mining

  16. Biomedical Engineering

    E-Print Network [OSTI]

    engineering is a discipline that advances knowledge in engineering, biology and medicine, and improves human#12;Biomedical Engineering Dr. Kevin Lear, Director, Undergraduate Program Ms. Brett Eppich Beal, Adviser 5280 CSU Engineering Showcase January 29, 2011 #12;SBME ­ Who are We? Director ­ Stuart Tobet

  17. INSTITUTE OF PHYSICS PUBLISHING JOURNAL OF PHYSICS B: ATOMIC, MOLECULAR AND OPTICAL PHYSICS J. Phys. B: At. Mol. Opt. Phys. 37 (2004) R57R88 PII: S0953-4075(04)63251-2

    E-Print Network [OSTI]

    Zajfman, Daniel

    of the high-energy storage rings used in high-energy particle physics, in particular LEAR [8], and use mainly, they are usually smaller and require neither high-energy (MeV) accelerators for injecting the beam, nor and nuclear physics, nonlinear dynamics, single component plasmas, mass spectrometry, biophysics, quantum

  18. Climatic variation in the Linxia basin, NE Tibetan Plateau, from 13.1 to 4.3 Ma: The stable isotope record

    E-Print Network [OSTI]

    Garzione, Carmala N.

    (Lear et al., 2000; Zachos et al., 2001; Billups and Schrag, 2002). In East Asia, climate change sinceClimatic variation in the Linxia basin, NE Tibetan Plateau, from 13.1 to 4.3 Ma: The stable isotope record Majie Fan a,b,, David L. Dettman a , Chunhui Song b , Xiaomin Fang b,c , Carmala N. Garzione d

  19. Heng Wang May 2014 Postdoc Researcher hengwang00@gmail.com

    E-Print Network [OSTI]

    Heng Wang May 2014 Postdoc Researcher hengwang00@gmail.com LEAR Team, INRIA Rh^one-Alpes, France´er^ome Revaud, Cordelia Schmid, Jochen Schwenninger, Jakob Verbeek, Heng Wang. The AXES submissions at TrecVid 2013. TRECVID Workshop, 2013. Authors sorted by name · Heng Wang, Cordelia Schmid. Action Recognition

  20. Matthew D. Petrie Information

    E-Print Network [OSTI]

    ecology, extreme events, drought, remote sensing, carbon and water cycling, energy exchange, vegetation, September 2014 · Dissertation Topic: Community ecology, climate change and ecohydrology in desert grassland · Land use emphasis · Advisor: Professor Shannon O'Lear Submitted Journal Publications [1] Petrie MD

  1. Matthew D. Petrie Information

    E-Print Network [OSTI]

    , drought, remote sensing, carbon and nutrient cycling, energy partitioning, vegetation optimality, eddy · Advisor: Professor Shannon O'Lear Submitted Journal Publications [1] Petrie, MD, Collins, SL, Litvak, ML, in review. Refereed Journal Publications [3] Petrie, MD, Collins, SL, Gutzler, DS and Moore, DM. 2014

  2. WILDFIRE DAMAGE ASSESSMENT OF A YOUNG OAK FOREST IN PENNSYLVANIA

    E-Print Network [OSTI]

    Abrams, Marc David

    of 1880-1930 (Abrams, 1992; Brose, Schuler, van Lear, & Berst, 2001). Following the fire exclusion policy, dramatically altered their composition and structure (Dey, Royo, Brose, Hutchinson, Spetich, & Stoleson, 2010 forests because of the many ecological benefits that it provides (Brose, Gottschalk, Horsley, Knopp

  3. capstone engineerspring 07 Crimson is ...

    E-Print Network [OSTI]

    Carver, Jeffrey C.

    Ng iN NEAr-SPACE 4 Student Research LEArNiNg ToDAy To LEAD ToMorroW 8 Cybersecurity UA'S DEVELoPMENTS iN CyBErSECUriTy platforms for civilian and military applications. Emergency responders could use these types of vehicles

  4. Extra Low ENergy Antiproton (ELENA) ring and its Transfer Lines: Design Report

    E-Print Network [OSTI]

    Alanzeau, C; Angoletta, M E; Baillie, J; Barna, D; Bartmann, W; Belochitskii, P; Borburgh, J; Breuker, H; Butin, F; Buzio, M; Capatina, O; Carli, C; Carlier, E; Cattin, M; Dobers, T; Chiggiato, P; Ducimetiere, L; Eriksson, T; Fedemann, S; Fowler, T; Froeschl, R; Gebel, R; Gilbert, N; Hancock, S; Harasimowicz, J; Hori, M; Jorgensen, L V; Kersevan, R; Kuchler, D; Lacroix, J M; LeGodec, G; Lelong, P; Lopez-Hernandez, L; Maury, S; Molendijk, J; Morand, B; Newborough, A; Nisbet, D; Nosych, A; Oelert, W; Paoluzzi, M; Pasinelli, S; Pedersen, F; Perini, D; Puccio, B; Sanchez-Quesada, J; Schoerling, D; Sermeus, L; Soby, L; Timmins, M; Tommasini, D; Tranquille, G; Vanbavinckhove, G; Vorozhtsov, A; Welsch, C; Zickler, T

    2014-01-01T23:59:59.000Z

    This Report gives a full description of the ELENA Ring to be built within the circumference of the Antiproton Decelarator (AD) Ring, in Building 193 at CERN. The ELENA ring will further decelerate the antiprotons coming from the AD at the momentum of 100 MeV/c down to 13.7 MeV/c, which corresponds to the kinetic energy of 100 keV before extracting to the physics experiments in the same building. The history of such an extra low energy antiproton ring at CERN goes a long way back, and even to the Decelerator’s previous incarnation, the Low Energy Antiproton Ring (LEAR), which came into operation in 1983. Already at that time, there were physics’ requests to further decelerate the antiprotons expected from LEAR by proposals for ELENA. Appendix I illustrates the cover pages of two such CERN documents from 1982.

  5. Antiproton annihilations in nuclei

    SciTech Connect (OSTI)

    McGaughey, P.L.; Bol, K.D.; Clover, M.R.; DeVries, R.M.; DiGiacomo, N.J.; Kapustinsky, J.S.; Smith, G.R.; Sunier, J.W.; Sondheim, W.E.; Yariv, Y.; and others

    1985-09-15T23:59:59.000Z

    Recent results from LEAR experiment PS187 are presented. Preliminary data for the inclusive production of ..pi../sup +/, K/sup +/, and p from the annihilation of 180 MeV antiprotons in /sup 28/Si and /sup 238/U are compared with predictions of intranuclear cascade calculations. Proton and pion production data are well reproduced by the calculations, but kaon yields at low momenta appear to be strongly suppressed in the experimental data.

  6. Antiproton annihilations in nuclei

    SciTech Connect (OSTI)

    McGaughey, P.L.; Bol, K.D.; Clover, M.R.; DeVries, R.M.; DiGiacomo, N.J.; Kapustinsky, J.S.; Smith, G.R.; Sunier, J.W.; Sondheim, W.E.; Yariv, Y.

    1985-01-01T23:59:59.000Z

    Recent results from LEAR experiment PS187 are presented. Preliminary data for the inclusive production of ..pi../sup +/, K/sup +/, and p from the annihilation of 180 MeV antiprotpns in /sup 28/Si and /sup 238/U are compared with predictions of intranuclear cascade calculations. Proton and pion production data are well reproduced by the calculations, but kaon yields at low momenta appear to be strongly suppressed in the experimental data. 8 refs., 5 figs.

  7. University Calendar, February 5, 2013

    E-Print Network [OSTI]

    2013-02-05T23:59:59.000Z

    and Environmental Politics.” Shannon O'Lear. Noon. 329 Blake Hall. Sponsored by Center for Global and International Studies. Call 786-864-1120. Lecture. “Footprints in the Serto: My Experience as a Photographer, Teacher & Community leader in Bahia, Brazil... Elements in Modern Sedimentary Basins: Fluvial Form That Will be Preserved into the Rock Record.” Gary Weissmann. 4 p.m. 103 Lindley Hall. Free. Sponsored by Department of Geology. Call 785-864-4974. Colloquium. Special Colloquium - Department...

  8. A_ Science service Feature Released on r e c e i p t

    E-Print Network [OSTI]

    t from above. hovJover, t h a t although the snow-covered Lround may look white and the clouds gray. aecause the sun i s low, i t s rays s t r i k e the Upper surface of a cloud sheet a t a small angle through the cloud. rays a r e more ;learly perpendicular, riuch more sunlight penetrates. is near t h e

  9. Four facets of the relation of tragedy to dialectic and the theme of crisis of expectations

    E-Print Network [OSTI]

    Haris, Muhammad

    2009-05-15T23:59:59.000Z

    the contents of tragedy are placed as flesh. I am investigating the relation of various aspects of dialectic (as in Hegel, Szondi, Simmel, Sartre, Nietzsche) to tragedy in life and also in life as represented in drama (as in Antigone, Oedipus, King Lear... social meaning. The second chapter is about irreconcilable differences that destroy harmony. From a formal perspective, this chapter is on diremption and conflict in the dialectic. The substantial content which provokes the investigations...

  10. Ratings of everyday academic and cognitive skills in evaluation of school learning and learning problems: initial scale development and validation 

    E-Print Network [OSTI]

    Lamb, Gordon Dale

    2008-10-10T23:59:59.000Z

    . vii NOMENCLATURE ASI Academic Skills Index ACSI Academic and Cognitive Skills Index CSI Cognitive Skills Index Lang Language Scale Lear Learning Scale Math Math Scale MeAc Academic-Related Memory Subscale MeEv Memory for Events Subscale Me...Pe Personal-Related Memory Subscale MeSc Memory for Schedules Subscale Memo Memory Scale PrSo Problem Solving Scale Read Reading Scale SyEx Symbolic Expressive Language Subtest SyRe Symbolic Receptive Language Subtest Symb Symbolic Language Subscale Ve...

  11. Determination of the occurrence of Arcobacter butzleri in beef and dairy cattle from Texas using two isolation methods

    E-Print Network [OSTI]

    Golla, Steven Craig

    2000-01-01T23:59:59.000Z

    Arcobactt r brit, leri is a pathogenic bacterium tha& has been found in d ury cattle, pigs, poultry and humans. As of this v riling, there arc, no data to report the prevalcncc of occurrence of A. bn(zleri in beef' cattle. Also, there arc numerous culture... CHAPTF'R I Ii&& TRODUCTIO'&i Many consuincrs perceive that the food supply is no&. sal'e (5). Biolog&cal harards arc the most leared by tod;&y's consumers because they can cause serious illness and even death. Over 90%& of toodb&irne illnesses...

  12. Determination of formation water resistivity using shale properties in geopressured wells

    E-Print Network [OSTI]

    Dusenbery, Richard Allen

    1983-01-01T23:59:59.000Z

    No. 2 Riddle Oil Company, during the drilling of its Saldana well, No. 2 ran several logging surveys. Upon the determination of dry hole the logs were used in the Wells of Opportunity Program for the OOE. Shale Method: The calculated formation... Oil and Minerals Prairie Cana Well Rl Lear Petroleum Keolemay '. ll Martin Exploration 2-Crown Zellerbach Shale. R w . 1277 onm-m . 049 ohm-m . 122 ohm-m . 078 ohm-m Method 12, 000 ppm 39, 000 ppm 15, 800 ppm 27, 000 ppm Lab R w . 13 ohm...

  13. LEAP 1992: Conference summary

    SciTech Connect (OSTI)

    Dover, C.B.

    1992-12-01T23:59:59.000Z

    We present a summary of the many new results in antiproton ({bar p}) physics presented at the LEAP `92 conference, in the areas of meson spectroscopy, {bar N}N scattering, annihilation and spin observables, strangeness and charm production, {bar N} annihilation in nuclei, atomic physics with very low energy {bar p}`s, the exploration of fundamental symmetries and interactions with {bar p} (CP, T, CPT, gravitation), and the prospects for new {bar p} facilities at ultralow energies or energies above the LEAR regime ({ge} 2 GeV/c).

  14. LEAP 1992: Conference summary

    SciTech Connect (OSTI)

    Dover, C.B.

    1992-12-01T23:59:59.000Z

    We present a summary of the many new results in antiproton ([bar p]) physics presented at the LEAP '92 conference, in the areas of meson spectroscopy, [bar N]N scattering, annihilation and spin observables, strangeness and charm production, [bar N] annihilation in nuclei, atomic physics with very low energy [bar p]'s, the exploration of fundamental symmetries and interactions with [bar p] (CP, T, CPT, gravitation), and the prospects for new [bar p] facilities at ultralow energies or energies above the LEAR regime ([ge] 2 GeV/c).

  15. Sax Romer's Use of Oriental Words in His Fiction

    E-Print Network [OSTI]

    Cannon, Garland

    2005-12-07T23:59:59.000Z

    Wilkinson, and Henry Yule, who are cited in our Glossary as the earliest known record of numerous items. Rohmer does proudly acknowledge the influence of Edgar Allan Poe, of whom he owned a prominent engraving. He has his detective Paul Harley elaborately...), and The Faerie Queene (where even Muslims swear by Mahound five times). In King Lear the "madman" Edgar refers to the demon Mahu. Later attacks appear in Paradise Lost and some of Pope's poems, all the way to Sir Walter Scott. Such influential literary...

  16. The Harlequin Cabbage-bug.

    E-Print Network [OSTI]

    Paddock, F.B. (Floyd B.)

    1915-01-01T23:59:59.000Z

    to the insects during the spring, from the time the bugs leare their hibernating quarters until the egg-laying period is over. When the bugs become verp abundant upon the trap crop they should be destroyed either by spraying with pure kerosene, burning... to use this material is in the flestruction of the insects on the trap crops and upon crop rem- nants. Kerosene emulsion of 15 per cent. strength mag be used to ki!l the young or immature hugs. Djre~tion~s for making this are appende J . This insect...

  17. 2.0 COrE lOgO 2.01 overview

    E-Print Network [OSTI]

    Lotze, Heike K.

    2.0 COrE lOgO 2.01 overview 2.02 cLear space and minimum size 2.03 exampLes of pLacement on coLied to the core Logo 2.08 appLying the Logo properLy 2.09 LinKs to daLhousie authorized core Logo AuguST 2014 with real substance and stature, and seen as a vibrant, welcoming community. Our core logo is the visual

  18. New England style passive solar

    SciTech Connect (OSTI)

    Kriescher, P.

    2000-06-01T23:59:59.000Z

    There are homeowners throughout New England who planned for and built homes that allow them to avoid the sting of winter's high heating bills. These climate-responsive homes rely on passive solar heating, cooling and lighting. An example of such a climate-responsive/passive solar house is the home that Arthur and Terry Becker build on 6 beautiful acres (2.4 hectares) of rolling farm and woodland southeast of Andover, Connecticut, in 1981. They worked very closely with their designer, Al Eggan of K.T. Lear and Associates, to ensure that they would never have to pay for home heating oil, and that they would enjoy a level of year-round comfort that they had not experienced in conventionally built homes.

  19. Commissioning and First Operation of the Antiproton Decelerator (AD)

    E-Print Network [OSTI]

    Belochitskii, P; Buttkus, J; Carli, Christian; Caspers, Friedhelm; Chohan, V; Cornuet, D; Eriksson, T; Findlay, A; Giovannozzi, Massimo; Holzer, B; MacCaferri, R; Madsen, N; Marchesotti, M; Maury, S; Möhl, D; Pasinelli, S; Pedersen, F; Søby, L; Tan, J; Tranquille, G

    2001-01-01T23:59:59.000Z

    The Antiproton Decelerator (AD) is a simplified source of antiprotons which provides low energy antiprotons for experiments, replacing four machines: AC (Antiproton Collector), AA (Antiproton Accumulator), PS and LEAR (Low Energy Antiproton Ring), shutdown in 1996. The former AC was modified to include deceleration and electron cooling. The AD started operation in July 2000 and has since delivered cooled beam at 100 MeV/c (kinetic energy of 5.3 MeV) to 3 experiments (ASACUSA, ATHENA and ATRAP) for 1500 h. The flux (up to 2.5´105pbars /s delivered in short pulses of 330 ns every 110 s) and the quality of the ejected beam are not far from the design specifications. A linear RF Quadrupole Decelerator (RFQD) was commissioned in November 2000 to post-decelerate the beam for ASACUSA from 5.3 MeV to about 15 keV. Problems encountered in converting the fixed energy AC into a decelerating machine will be outlined, and the present status of the AD, including the performance of the cooling systems and the special diagn...

  20. The LHC Lead Injector Chain

    E-Print Network [OSTI]

    Beuret, A; Blas, A; Burkhardt, H; Carli, Christian; Chanel, M; Fowler, A; Gourber-Pace, M; Hancock, S; Hourican, M; Hill, C E; Jowett, John M; Kahle, K; Küchler, D; Lombardi, A M; Mahner, E; Manglunki, Django; Martini, M; Maury, S; Pedersen, F; Raich, U; Rossi, C; Royer, J P; Schindl, Karlheinz; Scrivens, R; Sermeus, L; Shaposhnikova, Elena; Tranquille, G; Vretenar, Maurizio; Zickler, T

    2004-01-01T23:59:59.000Z

    A sizeable part of the LHC physics programme foresees lead-lead collisions with a design luminosity of 1027 cm-2 s-1. This will be achieved after an upgrade of the ion injector chain comprising Linac3, LEIR, PS and SPS machines [1,2]. Each LHC ring will be filled in 10 min by almost 600 bunches, each of 7×107 lead ions. Central to the scheme is the Low Energy Ion Ring (LEIR) [3,4], which transforms long pulses from Linac3 into high-brilliance bunches by means of multi-turn injection, electron cooling and accumulation. Major limitations along the chain, including space charge, intrabeam scattering, vacuum issues and emittance preservation are highlighted. The conversion from LEAR (Low Energy Antiproton Ring) to LEIR involves new magnets and power converters, high-current electron cooling, broadband RF cavities, and a UHV vacuum system with getter (NEG) coatings to achieve a few 10-12 mbar. Major hardware changes in Linac3 and the PS are also covered. An early ion scheme with fewer bunches (but each at nominal...

  1. Effects of impurity atoms and molecules on the lifetime of antiprotonic helium atoms

    E-Print Network [OSTI]

    Widmann, E; Yamazaki, T; Hayano, R S; Iwasaki, M; Nakamura, S N; Tamura, H; Ito, T M; Kawachi, A; Nishida, N; Higemoto, M; Ito, Y; Morita, N; Hartmann, F J; Daniel, H; Von Egidy, T; Schmid, W; Hoffmann, J; Eades, John

    1996-01-01T23:59:59.000Z

    Delayed annihilation time spectra of antiprotons (DATS) in room temperature helium gas have been studied as a function of the concentration of admixed noble gases (Ne, Ar, Kr, Xe) as well as molecular gases (N_2,O_2,H_2) at the low energy antiproton ring (LEAR) at CERN. The DATS were a superposition of two exponential components, one with lifetime of several 100 ns and the other with lifetime 1 to 3 \\mus. They showed a shorter average lifetime (T_{av}) than DATS of pure helium. Ne, Ar, and Kr were found to affect T_{av} only slightly even in concentrations up to 20\\%, while Xe showed a much stronger influence. In the case of molecular gases the presence of N_2 influenced the DATS much less than O_2 and H_2 which destroyed the metastability almost completely in concentrations of 100 ppm and less. The decay rate of the slow component of DATS was found to exhibit a linear relation to the number density of the admixture. From this a collisional destruction (``quenching'') cross section \\sigma_q was extracted. No ...

  2. [Medium energy meson research

    SciTech Connect (OSTI)

    Crowe, K.M.

    1992-01-01T23:59:59.000Z

    The activities of this group are primarily concerned with experiments using the Crystal Barrel Detector. This detector is installed and operating at the Low Energy Antiproton Ring (LEAR) at CERN. QCD, the modem theory of the strong interaction, is reasonably well understood at high energies, but unfortunately, low-energy QCD is still not well understood, and is far from being adequately tested. The Crystal Barrel experiments are designed to provide some of the tests. The basic line of research involves meson spectroscopy, analyses bearing on the quark and/or gluon content of nuclear states, and the exploration of mechanisms and rules which govern p[bar p] annihilation dynamics. The Crystal Barrel Detector detects and identifies charged and neutral particles with a geometric acceptance close to 100%. The principal component of the detector is an array of 1,380 CsI(TI) crystals. These crystals surround a Jet Drift Chamber (JDC), located in a 1.5 Tesla magnetic field, which measures the momentum and dE/dx of charged particles. One of the very interesting physics goals of the detector is a search for exotic mesonic states -- glueballs and hybrids. Annihilation at rest will be studied with both liquid and gaseous hydrogen targets. The gaseous target offers the possibility of triggering on atomic L-shell X rays so that specific initial angular momentum states can be studied.These topics as well as other related topics are discussed in this report.

  3. [Medium energy meson research

    SciTech Connect (OSTI)

    Crowe, K.M.

    1992-12-01T23:59:59.000Z

    The activities of this group are primarily concerned with experiments using the Crystal Barrel Detector. This detector is installed and operating at the Low Energy Antiproton Ring (LEAR) at CERN. QCD, the modem theory of the strong interaction, is reasonably well understood at high energies, but unfortunately, low-energy QCD is still not well understood, and is far from being adequately tested. The Crystal Barrel experiments are designed to provide some of the tests. The basic line of research involves meson spectroscopy, analyses bearing on the quark and/or gluon content of nuclear states, and the exploration of mechanisms and rules which govern p{bar p} annihilation dynamics. The Crystal Barrel Detector detects and identifies charged and neutral particles with a geometric acceptance close to 100%. The principal component of the detector is an array of 1,380 CsI(TI) crystals. These crystals surround a Jet Drift Chamber (JDC), located in a 1.5 Tesla magnetic field, which measures the momentum and dE/dx of charged particles. One of the very interesting physics goals of the detector is a search for exotic mesonic states -- glueballs and hybrids. Annihilation at rest will be studied with both liquid and gaseous hydrogen targets. The gaseous target offers the possibility of triggering on atomic L-shell X rays so that specific initial angular momentum states can be studied.These topics as well as other related topics are discussed in this report.

  4. NSLS-II: Nonlinear Model Calibration for Synchrotrons

    SciTech Connect (OSTI)

    Bengtsson, J.

    2010-10-08T23:59:59.000Z

    This tech note is essentially a summary of a lecture we delivered to the Acc. Phys. Journal Club Apr, 2010. However, since the estimated accuracy of these methods has been naive and misleading in the field of particle accelerators, i.e., ignores the impact of noise, we will elaborate on this in some detail. A prerequisite for a calibration of the nonlinear Hamiltonian is that the quadratic part has been understood, i.e., that the linear optics for the real accelerator has been calibrated. For synchrotron light source operations, this problem has been solved by the interactive LOCO technique/tool (Linear Optics from Closed Orbits). Before that, in the context of hadron accelerators, it has been done by signal processing of turn-by-turn BPM data. We have outlined how to make a basic calibration of the nonlinear model for synchrotrons. In particular, we have shown how this was done for LEAR, CERN (antiprotons) in the mid-80s. Specifically, our accuracy for frequency estimation was {approx} 1 x 10{sup -5} for 1024 turns (to calibrate the linear optics) and {approx} 1 x 10{sup -4} for 256 turns for tune footprint and betatron spectrum. For a comparison, the estimated tune footprint for stable beam for NSLS-II is {approx}0.1. Since the transverse damping time is {approx}20 msec, i.e., {approx}4,000 turns. There is no fundamental difference for: antiprotons, protons, and electrons in this case. Because the estimated accuracy for these methods in the field of particle accelerators has been naive, i.e., ignoring the impact of noise, we have also derived explicit formula, from first principles, for a quantitative statement. For e.g. N = 256 and 5% noise we obtain {delta}{nu} {approx} 1 x 10{sup -5}. A comparison with the state-of-the-arts in e.g. telecomm and electrical engineering since the 60s is quite revealing. For example, Kalman filter (1960), crucial for the: Ranger, Mariner, and Apollo (including the Lunar Module) missions during the 60s. Or Claude Shannon et al since the 40s for that matter. Conclusion: what's elementary in the latter is considered 'advanced', if at all, in the former. It is little surprise then that published measurements typically contains neither error bars (for the random errors) nor estimates for the systematic in the former discipline. We have also showed how to estimate the state space by turn-by-turn data from two adjacent BPMs. And how to improve the resolution of the nonlinear resonance spectrum by Fourier analyzing the linear action variables instead of the betatron motion. In fact, the state estimator could be further improved by adding a Kalman filter. For transparency, we have also summarized on how these techniques provide a framework- and method for a TQM (Total Quality Management) approach for the main ring. Of course, to make the ($2.5M) turn-by-turn data acquisition system that is being implemented (for all the BPMs) useful, a means ({approx}10% contingency for the BPM system) to drive the beam is obviously required.