First Order QED Corrections to the Parity-Violating Asymmetry in Moller Scattering Zykunov, Vladimir A.; /Gomel State Tech. U.;Suarez, Juan; /Minsk, High Energy Phys. Ctr.;Tweedie, Brock A.; Kolomensky, Yury G.; /UC, Berkeley; 43 PARTICLE ACCELERATORS; ASYMMETRY; INFRARED DIVERGENCES; MOELLER SCATTERING; PARITY; SCATTERING; STANFORD LINEAR ACCELERATOR CENTER Phenomenology-HEP,HEPTH We compute a full set of the first order QED corrections to the parity-violating observables in polarized Moeller scattering. We employ a covariant method of removing infrared divergences, computing corrections without introducing any unphysical parameters. When applied to the kinematics of the SLAC E158 experiment, the QED corrections reduce the parity violating asymmetry by 4.5%. We combine our results with the previous calculations of the first-order electroweak corrections and obtain the complete {Omicron}({alpha}) prescription for relating the experimental asymmetry A{sub LR} to the low-energy value of the weak mixing angle sin{sup 2} {theta}{sub W}. Our results are applicable to the recent measurement of A{sub LR} by the SLAC E158 collaboration, as well as to the future parity violation experiments. Stanford Linear Accelerator Center (SLAC) http://www.slac.stanford.edu/cgi-wrap/pubpage?slac-pub-11378.html USDOE United States 2005-08-15 English Technical Report Medium: ED; Size: 13 pages OSTI ID: 878789 SLAC-PUB-11378 AC02-76SF00515 Other: hep-ph/0507287; TRN: US200612%%137 SLAC; RN06068587; INS-US0602586 2008-02-05 878789 http://www.osti.gov/bridge/servlets/purl/878789-0dJ4uq/ Task 3.7 -- Fuel utilization properties. Semi-annual report, January 1--June 30, 1995 Zygarlicke, C.J. 01 COAL, LIGNITE, AND PEAT; PROGRESS REPORT; COAL GASIFICATION; COMBINED-CYCLE POWER PLANTS; ASHES; DEPOSITION; CHEMICAL PROPERTIES; PHYSICAL PROPERTIES; MITIGATION; BITUMINOUS COAL; MINERALOGY; EXPERIMENTAL DATA The goal of the fuel utilization properties project was to determine the impacts of specific coal properties and additives on ash formation and deposition in advanced power systems. At the forefront of advanced power systems for coal utilization are pressurized fluidized bed (PFB) reactors and integrated gasifier-combined cycle (IGCC) reactors. Some of these systems are still in the infancy of their development and commercialization and very little is known about the types of ash deposition problems that could occur. Ash deposition in power generating systems is a significant problem that decreases efficiency and can lead to severe operational problems. During high temperature conversion of coal, the inorganic constituents in the coal are transformed into solid, liquid, and vapor species that differ in composition and size from the original inorganic constituents present in the coal. The chemical and physical properties of the intermediate ash stream are dependent in part upon the types, quantities and association of the minerals and other inorganics in the coal. There is a pressing need to obtain critical information on the aspects of inorganic transformations and deposit formation that will apply to advanced power systems so that mitigation measures can be prescribed such as predictive models, system design or operational changes, and the use of additives. The focus was on integrated gasification combined cycle (IGCC)-type systems, whereby small-scale furnaces were employed to simulate gasification or highly reducing conditions in order to produce entrained ash and deposits for analysis. Specific goals for this year`s work in the area of ash formation and deposition included the following: Determining the general chemical and physical properties of simulated entrained ash and deposits that may lead to operational problems, and Identifying and testing methods to mitigate deposition in IGCC-type systems. North Dakota Univ., Energy and Environmental Research Center, Grand Forks, ND (United States) OSTI as DE97002215 USDOE Assistant Secretary for Fossil Energy, Washington, DC (United States) United States 1997-08-01 English Technical Report Other Information: PBD: Aug 1997 Medium: P; Size: 27 p. OSTI ID: 650113; Legacy ID: DE97002215 DOE/MC/30097--5568 FC21-93MC30097 Other: ON: DE97002215; TRN: TRN: AHC2DT04%%24 NETL; SCA: 010800; 010600; PA: DTOS-98:AD-A340 172; ELC-98155; EDB-98:097876; SN: 98001963232; TVI: 98D04 2008-02-05 650113 http://www.osti.gov/bridge/servlets/purl/650113-svnsvN/webviewable/ Energy and environmental research emphasizing low-rank coal: Task 3.7, Fuel utilization properties Zygarlicke, C.J. 01 COAL, LIGNITE, AND PEAT; COAL GASIFICATION; ASHES; CHEMICAL COMPOSITION; PHYSICAL PROPERTIES; DEPOSITS; FURNACES; MINERALOGY; SUBBITUMINOUS COAL; CALCIUM; IRON; SCANNING ELECTRON MICROSCOPY; ADDITIVES; EXPERIMENTAL DATA Gasification-type entrained ash and deposits were produced in a pressurized test furnace at high temperature. For the subbituminous Black Thunder coal, the effect of fuel-rich conditions was an increase in quartz, calcite, dolomite, and calcium-rich phases in the entrained ash. Lower particle temperatures, as compared to full air conventional combustion, and the oxygen-lean atmosphere may have caused a reduction in the interaction and assimilation of pure quartz and organically bound calcium into calcium aluminosilicate phases. For the Illinois No. 6 entrained fly ash fuel-rich conditions prevented the oxidation of pyrite and pyrrhotite to iron oxide. Lower temperatures within and surrounding char particles during reducing conditions combustion may have prevented the decomposition of pyrrhotite and enhanced the reaction of iron with aluminosilicate phases. The deposits show similar trends, with the Illinois No. 6 deposit grown under pressurized conditions at a lower temperature having Na and (Ca, Mg, Fe, Na, K) aluminosilicates, calcium carbonate, and an iron sulfide, probably pyrrohotite, present. At higher temperature, loss of sulfur occurs with the increased formation of iron aluminosilicate phases. The Illinois No. 6 and Black Thunder coals were tested with kaolin and lime additives under highly reducing conditions to simulate a gasification environment. The deposit collection zone temperature was varied from 750{degree}C to 1OOO{degree}C. Although no clear trends were evident for the interaction of kaolin or lime with the deposits, the deposits did become more porous, with greatly reduced strength shown for both additives. North Dakota Univ., Grand Forks, ND (United States). Energy and Environmental Research Center OSTI as DE96000621 USDOE, Washington, DC (United States) United States 1995-08-01 English Technical Report Other Information: PBD: Aug 1995 Medium: ED; Size: 20 p. OSTI ID: 205587; Legacy ID: DE96000621 DOE/MC/30097--5089 FC21-93MC30097 Other: ON: DE96000621 NETL; SCA: 010800; 010600; 010404; PA: EDB-96:057591; NTS-96:011737; SN: 96001552142 2009-11-06 205587 http://www.osti.gov/bridge/servlets/purl/205587-u8ucix/webviewable/ Accelerator systems and instrumentation for the NuMI neutrino beam Zwaska, Robert Miles; /Texas U.; 43 PARTICLE ACCELERATORS, 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ACCELERATION; ACCELERATORS; ALIGNMENT; DECAY; FEEDBACK; FERMILAB ACCELERATOR; HADRONS; IONIZATION CHAMBERS; MAGNETS; MESONS; MUONS; NEUTRINO BEAMS; NEUTRINO OSCILLATION; NEUTRINOS; PROTON BEAMS; PROTONS; SECONDARY BEAMS; SPACE CHARGE; SYNCHRONIZATION Accelerators, Experiment-HEP Abstract Not Provided Fermi National Accelerator Laboratory (FNAL), Batavia, IL USDOE United States 2005-12-01 English Thesis/Dissertation Medium: ED; Size: 441 pages OSTI ID: 879065 FERMILAB-THESIS-2005-73 AC02-76CH03000 TRN: US200623%%217 FNAL; RN06141483 2008-05-15 879065 http://www.osti.gov/bridge/servlets/purl/879065-KyFi8s/ Operation of the NuMI beam monitoring system Zwaska, Robert M.; Indurthy, Dharma; Keisler, Ryan; Kopp, Sacha; Mendoza, Steven; Pavlovich, Zarko; Proga, Marek; Bishai, Mary; Diwan, Milind; Viren, Brett; Harris, Deborah A.; Marchionni, Alberto; Morfin, Jorge; McDonald, Jeffrey; Naples, Donna; Northacker, David; Erwin, Albert; Ping, Huican; Velissaris, Cristos; /Texas U. /Brookhaven /Fermilab /Pittsburgh U. /Wisconsin U., Madison; 43 PARTICLE ACCELERATORS; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; BEAM MONITORING; DISTRIBUTION; HADRONS; MUON BEAMS; NEUTRINO BEAMS; NEUTRINOS Accelerators, Instrumentation The NuMI (Neutrinos at the Main Injector) facility produces an intense neutrino beam for experiments. The NuMI Beam Monitoring system is four arrays of ion chambers that measure the intensity and distribution of the remnant hadron and tertiary muon beams produced in association with the neutrinos. The ion chambers operate in an environment of high particle fluxes and high radiation. Fermi National Accelerator Laboratory (FNAL), Batavia, IL USDOE United States 2006-06-01 English Conference Journal Name: AIP Conf.Proc.868:558-565,2006; Conference: Presented at 12th Beam Instrumentation Workshop (BIW06), Fermilab, Batavia, Illinois, 1-4 May 2006 Medium: ED; Size: 8 pages OSTI ID: 892421 FERMILAB-CONF-06-090-AD AC02-76CH03000 TRN: US200704%%723 FNAL; RN07018001; INS-US0701352 2008-05-15 892421 http://www.osti.gov/bridge/servlets/purl/892421-yfLXO9/ Cycle-to-cycle extraction synchronization of the Fermilab Booster for multiple batch injection to the Main Injector Zwaska, R.; Kopp, S.; /Texas U.;Pellico, W.; /Fermilab; 43 PARTICLE ACCELERATORS; ACCELERATION; ACCELERATORS; BEAM EXTRACTION; FEEDBACK; FERMILAB; NEUTRINO BEAMS; NEUTRINOS; PRODUCTION; SYNCHRONIZATION Accelerators We report on a system to ensure cycle-to-cycle synchronization of beam extraction from the Fermilab Booster accelerator to the Main Injector. Such synchronization is necessary for multiple batch operation of the Main Injector for the Run II upgrade of anti-proton production using slip-stacking in the Main Injector, and for the NuMI (Neutrinos at the Main Injector) neutrino beam. To perform this task a system of fast measurements and feedback controls the longitudinal progress of the Booster beam throughout its acceleration period by manipulation of the transverse position maintained by the LLRF (Low-level Radio Frequency) system. Fermi National Accelerator Laboratory (FNAL), Batavia, IL USDOE United States 2005-05-01 English Conference Conference: To appear in the proceedings of Particle Accelerator Conference (PAC 05), Knoxville, Tennessee, 16-20 May 2005 Medium: ED; Size: 3 pages OSTI ID: 15020176 FERMILAB-CONF-05-169-AD AC02-76CH03000 TRN: US200606%%300 FNAL; RN06031527 2008-05-15 15020176 http://www.osti.gov/bridge/servlets/purl/15020176-Xfd1GP/ A compact, repetitive accelerator for military and industrial applications Zutavern, F.J.; O`Malley, M.W.; Ruebush, M.H.; Rinehart, L.F.; Loubriel, G.M.; Babcock, S.R.; Denison, G.J. 43 PARTICLE ACCELERATORS; LINEAR ACCELERATORS; USES; SWITCHES; SPARK GAPS; DESIGN; PERFORMANCE TESTING; SIZE; POWER SUPPLIES A compact, short pulse, repetitive accelerator has many useful military and commercial applications in biological counter proliferation, materials processing, radiography, and sterilization (medical instruments, waste, and food). The goal of this project was to develop and demonstrate a small, 700 kV accelerator, which can produce 7 kA particle beams with pulse lengths of 10--30 ns at rates up to 50 Hz. At reduced power levels, longer pulses or higher repetition rates (up to 10 kHz) could be achieved. Two switching technologies were tested: (1) spark gaps, which have been used to build low repetition rate accelerators for many years; and (2) high gain photoconductive semiconductor switches (PCSS), a new solid state switching technology. This plan was economical, because it used existing hardware for the accelerator, and the PCSS material and fabrication for one module was relatively inexpensive. It was research oriented, because it provided a test bed to examine the utility of other emerging switching technologies, such as magnetic switches. At full power, the accelerator will produce 700 kV and 7 kA with either the spark gap or PCSS pulser. Sandia National Labs., Albuquerque, NM (United States) INIS; OSTI as DE98005264 USDOE Office of Energy Research, Washington, DC (United States);USDOE, Washington, DC (United States) United States 1998-04-01 English Technical Report Other Information: PBD: Apr 1998 Medium: P; Size: 29 p. OSTI ID: 654178; Legacy ID: DE98005264 SAND--98-0898 AC04-94AL85000 Other: ON: DE98005264; TRN: TRN: AHC2DT05%%268 SNL-A; SCA: 430100; PA: DTOS-98:AD-A347 065; ELC-98259; EDB-98:107081; INS-98:010306; SN: 98002002230; TVI: 98D05 2008-02-05 654178 http://www.osti.gov/bridge/servlets/purl/654178-VkeOxk/webviewable/ Properties of high gain GaAs switches for pulsed power applications Zutavern, F.J.; Loubriel, G.M.; Hjalmarson, H.P.; Mar, A.; Helgeson, W.D.; O`Malley, M.W.; Ruebush, M.H. [Sandia National Labs., Albuquerque, NM (United States)]; Falk, R.A. [OptoMetrix, Inc., Renton, WA (United States)] 42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES;43 PARTICLE ACCELERATORS; SEMICONDUCTOR SWITCHES; GALLIUM ARSENIDES; LINEAR ACCELERATORS; SEMICONDUCTOR LASERS; USES; POWER SUPPLIES; PERFORMANCE High gain GaAs photoconductive semiconductor switches (PCSS) are being used in a variety of electrical and optical short pulse applications. The highest power application, which the authors are developing, is a compact, repetitive, short pulse linear induction accelerator. The array of PCSS, which drive the accelerator, will switch 75 kA and 250 kV in 30 ns long pulses at 50 Hz. The accelerator will produce a 700 kV, 7kA electron beam for industrial and military applications. In the low power regime, these switches are being used to switch 400 A and 5 kV to drive laser diode arrays which produce 100 ps optical pulses. These short optical pulses are for military and commercial applications in optical and electrical range sensing, 3D laser radar, and high speed imaging. Both types of these applications demand a better understanding of the switch properties to increase switch lifetime, reduce jitter, optimize optical triggering, and improve overall switch performance. These applications and experiments on the fundamental behavior of high gain GaAs switches will be discussed. Open shutter, infra-red images and time-resolved images of the current filaments, which form during high gain switching, will be presented. Results from optical triggering experiments to produce multiple, diffuse filaments for high current repetitive switching will be described. Sandia National Labs., Albuquerque, NM (United States) INIS; OSTI as DE98000185 USDOE, Washington, DC (United States) United States 1997-09-01 English Conference Conference: 11. IEEE international pulsed power conference, Baltimore, MD (United States), 29 Jun - 2 Jul 1997; Other Information: PBD: Sep 1997 Medium: P; Size: 8 p. OSTI ID: 634121; Legacy ID: DE98000185 SAND--96-3015C; CONF-9706113-- AC04-94AL85000 Other: ON: DE98000185; TRN: TRN: AHC2DT01%%132 SNL-A; SCA: 426000; 430300; PA: DTOS-98:AD-A336 927; ELC-98119; EDB-98:089105; INS-98:009487; SN: 98001936958; TVI: 98D01 2008-02-05 634121 http://www.osti.gov/bridge/servlets/purl/634121-MXqOQs/webviewable/ Dark matter in view of recent experiments Zurek, Kathryn M.; /Fermilab; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ANNIHILATION; NONLUMINOUS MATTER; SCATTERING; STANDARD MODEL Theory-HEP We discuss new models of dark matter (DM) developed recently in light of the anomalous signals from DAMA, INTEGRAL, AMS, PAMELA, ATIC and Fermi. If the results of any of the experiments are the result of DM interactions with ordinary matter, whether through scattering or annihilation, the DM must have properties atypical of an ordinary Weakly Interacting Massive Particle (WIMP) from the Minimal Supersymmetric Standard Model (MSSM). Many of these new models of DM developed to explain these signals involve low mass hidden sectors with complex dynamics. We outline features required by the new models to be phenomenologically viable. Fermi National Accelerator Laboratory (FNAL), Batavia, IL USDOE United States 2009-07-01 English Conference Medium: ED; Size: 8 pages OSTI ID: 962749 FERMILAB-CONF-09-382-T AC02-76CH03000 TRN: US200916%%364 FNAL; RN09102491; INS-US0902932 2009-09-03 962749 http://www.osti.gov/bridge/servlets/purl/962749-BpVy86/ Prospects for supergravity Zumino, B. 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; SUPERGRAVITY; UNIFIED GAUGE MODELS; SO GROUPS; SU-8 GROUPS; SUPERMULTIPLETS; LIE GROUPS; MATHEMATICAL MODELS; MULTIPLETS; PARTICLE MODELS; SU GROUPS; SYMMETRY GROUPS Present particle phenomenology appears to be successfully described by a renormalizable gauge theory based on the low-energy group SU(3)/sub color/ x SU(2)/sub left/ x U(1). The three effective coupling constants of this theory vary with energy according to the renormalization group equations and become approximately equal at an energy of about 10/sup 14/ - 10/sup 15/ GeV, where one can attempt a grand unified theory (GUT) based on a gauge group with only one coupling constant and containing the low-energy group. The grand unification energy is very large and not much smaller than the Planck mass m/sub P/approx. = 10/sup 19/ GeV, where gravity becomes important. A natural way to unify gravity with lower-spin fields is provided by supergravity, the supersymmetric extension of Einstein's gravity. The largest supergravity theory (largest theory with a supermultiplet with maximum spin not exceeding two) is the N = 8 theory (N is the number of supersymmetries), which has an SO(8) internal symmetry. A GUT with N = 8 supergravity is considered. (RWR) Fermi National Accelerator Lab., Batavia, IL (USA); European Organization for Nuclear Research, Geneva (Switzerland) NTIS, PC A02/MF A01. Not Available United States 1980-08-01 English Conference Technical Report Conference: 20. international conference on high energy physics, Madison, WI, USA, 17 Jul 1980 Medium: ED; Size: Pages: 6 OSTI ID: 5095028 FERMILAB-CONF-80/74-THY; CONF-800724-24 AC02-76CH03000 FNAL; INS-80-017340; ERA-05-038977; EDB-80-119697 2009-04-02 5095028 http://www.osti.gov/bridge/servlets/purl/5095028-D6Ui6e/ Effects of neutral-beam injection and gas puffing on deuterium and impurity levels in the scrapeoff layer of ISX-B Zuhr, R.A.; Roberto, J.B.; Withrow, S.P. 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; IMPURITIES; ISX TOKAMAK; BOUNDARY LAYERS; DEUTERIUM; DIVERTORS; EROSION; FIRST WALL; GAS INJECTION; LIMITERS; NEUTRAL ATOM BEAM INJECTION; PLASMA; SHIELDING; SPUTTERING; SURFACES; BEAM INJECTION; FLUID INJECTION; HYDROGEN ISOTOPES; ISOTOPES; LAYERS; LIGHT NUCLEI; NUCLEI; ODD-ODD NUCLEI; STABLE ISOTOPES; THERMONUCLEAR REACTOR WALLS; THERMONUCLEAR REACTORS; TOKAMAK TYPE REACTORS Plasma-material interactions in the scrapeoff region of a tokamak have important effects on the overall performance of the machine. In order to prudently select the most-appropriate materials for walls, limiters, and armor plate, it is necessary to characterize the plasma that interacts with these surfaces and to understand what effect different modes of operation of the tokamak have on plasma characteristics. We have made a series of measurements on the ISX tokamak using deposition-probe techniques to identify and quantify the impurities (Z greater than or equal to 8) in the limiter shadow, and to determine the temporal behavior of both impurity and plasma particles in this region. These measurements have been made under a variety of tokamak operating conditions, including both ohmic and neutral-beam heated discharges. The results are interpreted in terms of edge conditions, impurity introduction, gas puffing, and the relative importance of wall and limiter contributions. Oak Ridge National Lab., TN (USA) NTIS, PC A02/MF A01. Not Available United States 1981-10-01 English Conference Technical Report Conference: Fusion reactor materials meeting, Seattle, WA, USA, 9 Aug 1981 Medium: ED; Size: Pages: 6 OSTI ID: 6772925; Legacy ID: DE82020920 CONF-810831-96 W-7405-ENG-26 Other: ON: DE82020920 INS-82-023275; ERA-07-062393; EDB-82-167599 2008-09-02 6772925 http://www.osti.gov/bridge/servlets/purl/6772925-1kGYfd/ Surface probe measurements in ISX-B and EBT-S Zuhr, R.A. 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ELMO BUMPY TORUS; IMPURITIES; PLASMA DIAGNOSTICS; PLASMA SHEATH; ISX TOKAMAK; ELECTRIC PROBES; ELMO DEVICES; MAGNETIC MIRRORS; OPEN PLASMA DEVICES; PROBES; THERMONUCLEAR DEVICES; THERMONUCLEAR REACTORS; TOKAMAK TYPE REACTORS Surface deposition probe techniques have been shown to be an effective means of determining the characteristics of the plasma edge region of magnetic confinement devices. Experimental results on ISX-B and EBT-S have led to a consistent picture of the edge plasma and the dominant impurity introduction mechanisms. This picture is supported by numerous other measurements and emphasizes the importance of concentrating several techniques on the complex problems of plasma fusion. Oak Ridge National Lab., TN (USA) NTIS, PC A02/MF A01. Not Available United States 1982-12-01 English Conference Technical Report Conference: Symposium on surface science, Obertraun, Austria, 30 Jan 1983 Medium: ED; Size: Pages: 6 OSTI ID: 6522008; Legacy ID: DE83006138 CONF-830120-1 W-7405-ENG-26 Other: ON: DE83006138 EDB-83-045976 2008-09-02 6522008 http://www.osti.gov/bridge/servlets/purl/6522008-8eSa6K/ Characterization of the TEXTOR plasma edge using deposition probe techniques Zuhr, R.A. 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; PLASMA DIAGNOSTICS; ELECTRIC PROBES; TEXTOR TOKAMAK; PLASMA SHEATH; BACKSCATTERING; EROSION; IMPURITIES; CLOSED PLASMA DEVICES; PROBES; SCATTERING; THERMONUCLEAR DEVICES; TOKAMAK DEVICES Carbon and single crystal silicon passive deposition probes were used to measure the characteristics of the plasma edge region of the TEXTOR tokamak. Analysis of the probes was done by Rutherford backscattering for impurities and nuclear reaction analysis and elastic recoil detection for hydrogen isotopes. Plasma fluxes and energies in the edge were measured using probe techniques. The principal impurities in the plasma edge were determined and their behavior as a function of time and position was measured. Measurements were also made of in situ erosion rates. The results are compared with independent measurements of other plasma parameters to study possible impurity introduction mechanisms. This work represents the first deposition probe measurements made in the plasma edge of TEXTOR. Oak Ridge National Lab., TN (USA) NTIS, PC A02/MF A01. Not Available United States 1983-10-01 English Conference Technical Report Conference: American Vacuum Society meeting, Boston, MA, USA, 1 Nov 1983 Medium: ED; Size: Pages: 12 OSTI ID: 5424877; Legacy ID: DE84003308 CONF-831171-15 W-7405-ENG-26 Other: ON: DE84003308 ERA-09-005551; EDB-84-011915 2008-09-02 5424877 http://www.osti.gov/bridge/servlets/purl/5424877-y8PeMY/ Spallation neutron production measurements Zucker, M.S.; Vanier, P.E.; von Wimmersperg, U.; Mughabghab, S.F.; Schmidt, E. [Department of advanced Technology, Brookhaven National Laboratory, Upton, NY (United States)]; Tsoupas, N. [Relativistic Heavy Ion Collider, Brookhaven National Laboratory, Upton, NY (United States)] 66 PHYSICS; LEAD; PROTON REACTIONS; TUNGSTEN; NEUTRONS; PRODUCTION; NUCLEAR REACTION YIELD; PROTON BEAMS Measurements of neutron production by proton bombardment of range- thick targets of Pb and W at 0.8, 1.0, 1.2, and 1.4 GeV were made for comparison with calculations based on code LAHET for neutrons with E{sub n}>20 MeV and code MCNP for E{sub n}{le}20 MeV and also to compare with each of two prior experiments dating from about 1965. Brookhaven National Lab., Upton, NY (United States) INIS; OSTI as DE96014559 USDOE, Washington, DC (United States) United States 1996-10-01 English Conference Conference: 2. international conference on accelerator-driven transmutation technologies and applications, Kalmar (Sweden), 3-7 Jun 1996; Other Information: PBD: [1996] Medium: ED; Size: 10 p. OSTI ID: 377615; Legacy ID: DE96014559 BNL--63258; CONF-960639--8 AC02-76CH00016 Other: ON: DE96014559 BNL; SCA: 663430; 663570; 663580; PA: EDB-96:153406; NTS-97:001986; INS-96:025641; SN: 96001666725 2009-11-10 377615 http://www.osti.gov/bridge/servlets/purl/377615-wywwvR/webviewable/ A Faraday Cup with high frequency response for a 200 MeV LINAC proton beam Zucker, M.S.; Bittner, J.W. 43 PARTICLE ACCELERATORS; FARADAY CUPS; DESIGN; PROTON BEAMS; BEAM MONITORING; FREQUENCY RESPONSE TESTING; LINEAR ACCELERATORS; ACCELERATORS; BEAM MONITORS; BEAMS; MEASURING INSTRUMENTS; MONITORING; MONITORS; NUCLEON BEAMS; PARTICLE BEAMS; TESTING The purpose of this device, composed essentially of coaxial line elements, is monitoring, on a per micropulse basis, the beam intensity of a 200 MeV LINAC at the BNL Radiation Effects Facility. The center conductor of the coaxial line acts as a beam stop. The output pulses are suitable for fast timing. 2 refs., 5 figs. Brookhaven National Lab., Upton, NY (USA) OSTI; NTIS; INIS; GPO Dep. DOE; USDOE, Washington, DC (USA) United States 1991-01-01 English Conference Technical Report Conference: 1991 Institute of Electrical and Electronics Engineers (IEEE) particle accelerator conference (PAC), San Francisco, CA (USA), 6-9 May 1991 Medium: ED; Size: Pages: (3 p) OSTI ID: 5549813; Legacy ID: DE91013867 BNL-46134; CONF-910505--221 AC02-76CH00016 Other: ON: DE91013867 BNL; EDB-91-094920 2008-08-28 5549813 http://www.osti.gov/bridge/servlets/purl/5549813-pa72mk/ Apparatus characterization as a standard for neutron correlation counting Zucker, M.S. 98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; FUEL RODS; NONDESTRUCTIVE ANALYSIS; COINCIDENCE METHODS; NUCLEAR MATERIALS MANAGEMENT; CALIBRATION; FISSIONABLE MATERIALS; MIXED OXIDE FUELS; NEUTRON DETECTORS; STANDARDS; CHEMICAL ANALYSIS; COUNTING TECHNIQUES; FUEL ELEMENTS; FUELS; MANAGEMENT; MATERIALS; MEASURING INSTRUMENTS; RADIATION DETECTORS; REACTOR COMPONENTS; SOLID FUELS Neutron correlation counting has the property that the count rate is predictable from first principles. This allows, in certain instances, replacing standards of the conventional types with a careful characterization of the apparatus. Multiplication would have to be small, and the material well characterized. An instance where circumstances forced used of such a procedure, with excellent results, is described. Brookhaven National Lab., Upton, NY (USA) NTIS, PC A02/MF A01. Not Available United States 1982-01-01 English Conference Technical Report Conference: 4. annual symposium on harmonization and standardization, Petten, Netherlands, 27 Apr 1982; Other Information: Portions of document are illegible Medium: ED; Size: Pages: 10 OSTI ID: 5195819; Legacy ID: DE82018099 BNL-31548; CONF-820415-7 AC02-76CH00016 Other: ON: DE82018099 BNL; ERA-07-053161; INS-82-018482; EDB-82-138831 2008-08-25 5195819 http://www.osti.gov/bridge/servlets/purl/5195819-GwDplx/ Heavy-Ion Accelerator Project at Oak Ridge Zucker, A.; Ball, J.B. N54100* --Particle Accelerators--Design, Development & Operation; *HEAVY IONS- - ACCELERATION; *ORNL ISOCHRONOUS CYCLOTRON; *VAN DE GRAAFF ACCELERATORS; HEAVY ION REACTIONS; PLANNING Oak Ridge National Lab., Tenn. (USA) Dep. NTIS $4.00. Country unknown/Code not available 1974-01-01 English Conference Conference: 4. all-union national conference on charged particle accelerators, Moscow, USSR, 18 Nov 1974; Other Information: Orig. Receipt Date: 30-JUN-75 Medium: ED; Size: Pages: 14 OSTI ID: 4267069 CONF-741112--5 None ORNL; NSA-31-017627 2009-04-09 4267069 http://www.osti.gov/bridge/servlets/purl/4267069-3ryVnB/ A hybrid dielectric and iris loaded periodic accelerating structure. Zou, P.; Xiao, L.; Sun, X.; Gai, W. 43 PARTICLE ACCELERATORS; ACCELERATION; ACCELERATORS; DIELECTRIC MATERIALS; EFFICIENCY; ELECTRIC FIELDS; IMPEDANCE; QUALITY FACTOR; PARTICLE BEAMS; HYBRID SYSTEMS; COMPUTERIZED SIMULATION One disadvantage of conventional iris-loaded accelerating structures is the high ratio of the peak surface electric field to the peak axial electric field useful for accelerating a beam. Typically this ratio E{sub s}/E{sub a} {ge} 2. The high surface electric field relative to the accelerating gradient may prove to be a limitation for realizing technologies for very high gradient accelerators. In this paper, we present a scheme that uses a hybrid dielectric and iris loaded periodic structure to reduce E{sub s}/E{sub a} to near unity, while the shunt impedance per unit length r and the quality factor Q compare favorably with conventional metallic structures. The analysis based on MAFIA simulations of such structures shows that we can lower the peak surface electric field close to the accelerating gradient while maintaining high acceleration efficiency as measured by r/Q. Numerical examples of X-band hybrid accelerating structures are given. Argonne National Lab., IL (US) US Department of Energy (US) United States 2001-07-17 English Conference Conference: 2001 Particle Accelerator Conference (PAC2001), Chicago, IL (US), 06/18/2001--06/22/2001; Other Information: PBD: 17 Jul 2001 Medium: ED; Size: 3 pages OSTI ID: 783658 ANL-HEP-CP-01-64 W-31-109-ENG-38 TRN: AH200128%%440 ANL; EDB-01:070639; INS-US0104193 2008-02-05 783658 http://www.osti.gov/bridge/servlets/purl/783658-a9feYM/native/ 2006 Computation Directorate Annual Report Zosel, M 99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE; 99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE; COMPUTERS; LAWRENCE LIVERMORE NATIONAL LABORATORY; SUPERCOMPUTERS No abstract prepared. Lawrence Livermore National Laboratory (LLNL), Livermore, CA USDOE United States 2007-02-27 English Technical Report Medium: ED; Size: PDF-file: 64 pages; size: 38 Mbytes OSTI ID: 909175 UCRL-TR-228768 W-7405-ENG-48 TRN: US200722%%1029 LLNL; RN07130951 2008-02-05 909175 http://www.osti.gov/bridge/servlets/purl/909175-D8Vlc2/ Theoretical developments in inclusive B decays Zoltan Ligeti 66 PHYSICS; B Mesons; B Mesons; Inclusive Interactions; Inclusive Interactions; Particle Decay; Particle Decay Some recent theoretical work on inclusive B decays relevant for the model independent determination of {vert_bar}V{sub ub}{vert_bar} and {vert_bar}V{sub cb}{vert_bar} is summarized. The theoretical predictions and their reliability for several differential decay distributions in {anti B}{yields}X{sub c,u}e{anti {nu}} and {anti B}{yields}X{sub s}{gamma} are reviewed. These can be used to determine certain important HQET matrix elements. The upsilon expansion and ways of testing it are discussed. Fermi National Accelerator Laboratory (FNAL), Batavia, IL USDOE Office of Energy Research (ER) United States 1999-05-17 English Conference Conference: Division of Particles and Fields Conference 1999, DPF99, University of California, Los Angeles, January 5-9, 1999 Medium: ED; Size: 2702 Kilobytes OSTI ID: 6736; Legacy ID: DE00006736 FERMILAB-Conf-99/058-T AC02-76CH03000 Other: ON: DE00006736 FNAL; PA: EDB-99:082319 2008-02-04 6736 http://www.osti.gov/bridge/servlets/purl/6736-DYgwKS/native/ Theory and proposal for a quantum-degenerate electron source Zolotorev, Max; Commins, Eugene D.; Sannibale Fernando 43; COMPTON WAVELENGTH; CONSTRUCTION; ELECTRON MICROSCOPY; ELECTRON SOURCES; ELECTRONS; HOLOGRAPHY; SCATTERING; TIME RESOLUTION electron source brightness degeneracy parameter We propose a pulsed electron source capable of a 6Dbrightness orders-of-magnitude greater than that of existing sources. Itcould deliver average current up to 0.5 pA and achieve an emittanceapproaching the quantum limit of one Compton wavelength in each spatialdimension. It could be employed to advantage in electron microscopy,inverse photo-emission, precision low-energy scattering experiments, andelectron holography. This source could make possible pump-probeexperiments with Angstrom spatial and sub-picosecond time resolution.Here we describe basic concepts of the source, including analysis of mainissues that must be addressed for its successful construction andoperation. We have begun an experiment to demonstrate its essentialfeatures. Ernest Orlando Lawrence Berkeley NationalLaboratory, Berkeley, CA (US) USDOE Director. Office of Science. Basic EnergySciences United States 2006-09-11 English Technical Report Medium: ED OSTI ID: 919260 LBNL--61587 DE-AC02-05CH11231 R&D Project: A580AP; Other: BnR: KC0204016; TRN: US200825%%232 LBNL; RN08160897; INS-US0807362 2008-12-22 919260 http://www.osti.gov/bridge/servlets/purl/919260-vaOpJD/ Proposal for a High-Brightness Pulsed Electron Source Zolotorev, Max; Commins, Eugene D.; Heifets, Sam; Sannibale,Fernando 43 electron source high brightness We propose a novel scheme for a high-brightness pulsedelectron source, which has the potential for many useful applications inelectron microscopy, inverse photo-emission, low energy electronscattering experiments, and electron holography. A description of theproposed scheme is presented. Ernest Orlando Lawrence Berkeley NationalLaboratory, Berkeley, CA (US) USDOE Director, Office of Science United States 2006-03-15 English Conference Conference: The Physics and Applications of High BrightnessElectron Beams, Erice, Italy, October 9-14, 2005 Medium: ED OSTI ID: 890084 LBNL--60066 DE-AC02-05CH11231 R&D Project: Z3THLE; Other: BnR: YN0100000 LBNL 2008-02-05 890084 http://www.osti.gov/bridge/servlets/purl/890084-qUKcgh/ An Ultra-Bright Pulsed Electron Beam with Low LongitudinalEmittance Zolotorev, Max; Commins, Eugene D.; Denes, P.; Heifets, Samuel;Hussain, Zahid; Lebedev, Gennnadi V.; Lidia, Steven M.; Robin, David S.;Sannibale, Fernando; Schoenlein, Robert W.; Vogel, Robert; Wan, Weishi 43 PARTICLE ACCELERATORS; 74 ATOMIC AND MOLECULAR PHYSICS; ACCELERATORS; BRIGHTNESS; ELECTRON BEAMS; ELECTRON SOURCES; ELECTRONS; ENERGY RESOLUTION; PAULI PRINCIPLE; SPATIAL RESOLUTION electron source emittance brightness energy spread Most existing electron sources extract electrons from conductors. Since the actual temperature inside the conductor is much less than the Fermi temperature of the conduction electrons, the electron degeneracy ({delta}{sub f}) is close to 1, the maximum allowed by the Pauli exclusion principle. However, during extraction several factors conspire together to reduce {delta}{sub f} many orders of magnitude, limiting the achieved values to approx 10{sup -5}. A new concept is described for building a novel electron source designed to produce a pulsed beam with {delta}{sub f} approx 2 10{sup -3} and longitudinal emittance four orders of magnitude smaller than currently achieved values. This high brightness, low longitudinal emittance regime enables a wide range of novel applications that utilize angstrom-scale spatial resolution and eV-scale energy resolution. The current state of a proof-of-principle experiment conducted at LBNL is also described. Ernest Orlando Lawrence Berkeley NationalLaboratory, Berkeley, CA (US) USDOE Director. Office of Science. Office of High EnergyPhysics United States 2005-05-01 English Conference Conference: Particle Accelerator Conference 2005, Knoxville,TN, May 16-20, 2005 Medium: ED OSTI ID: 891016 LBNL--57593; CBP Note - 753 DE-AC02-05CH11231 R&D Project: 455101; Other: BnR: KA1501020; TRN: US200620%%1087 LBNL; RN06120053; INS-US0604892 2008-02-05 891016 http://www.osti.gov/bridge/servlets/purl/891016-shlBtV/ FIRST EXPERIMENTAL RESULTS FROM DEGAS, THE QUANTUM LIMITED BRIGHTNESS ELECTRON SOURCE Zolotorev, Max S.; Commins, Eugene D.; Oneill, James; Sannibale, Fernando; Tremsin, Anton; Wan, Weishi 43; ACCELERATORS; BRIGHTNESS; COMMISSIONING; CONSTRUCTION; ELECTRON SOURCES; ELECTRONS The construction of DEGAS (DEGenerate Advanced Source), a proof of principle for a quantum limited brightness electron source, has been completed at the Lawrence Berkeley National Laboratory. The commissioning and the characterization of this source, designed to generate coherent single electron 'bunches' with brightness approaching the quantum limit at a repetition rate of few MHz, has been started. In this paper the first experimental results are described. Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (US) Accelerator& Fusion Research Division; Advanced Light Source Division United States 2008-06-23 English Conference Conference: 2008 European Particle Accelerator Conference (EPAC08) Medium: ED OSTI ID: 937491 LBNL-975E DE-AC02-05CH11231 TRN: US200905%%443 LBNL; RN09025538; INS-US0901529 2009-03-23 937491 http://www.osti.gov/bridge/servlets/purl/937491-0C34mD/ Femto-Second Pulses of Synchrotron Radiation Zolotorev, M.S. 43 PARTICLE ACCELERATORS; ELECTRONS; LIGHT SOURCES; STORAGE RINGS; SYNCHROTRON RADIATION A method capable of producing femto-second pulses of synchrotron radiation is proposed. It is based on the interaction of femto-second light pulses with electrons in a storage ring. The application of the method to the generation of ultra-short x-ray pulses at the Advance Light Source of Lawrence Berkeley National Laboratory has been considered. The same method can also be used for extraction of electrons from a storage ring in ultra-short series of microbunches spaced by the periodicity of light wavelength. Stanford Linear Accelerator Center, Menlo Park, CA (US) USDOE Office of Science (US) United States 2003-06-11 English Technical Report Other Information: PBD: 11 Jun 2003 Topical Medium: ED; Size: 4 pages OSTI ID: 813232 SLAC-PUB-9955 AC03-76SF00515 TRN: US200316%%52 SLAC; RN03073338; INS-US0303801 2008-02-05 813232 http://www.osti.gov/bridge/servlets/purl/813232-VsDyyQ/native/ ATTO SECOND ELECTRON BEAMS GENERATION AND CHARACTERIZATION EXPERIMENT AT THE ACCELERATOR TEST FACILITY. ZOLOTOREV, M.; ZHOLENTS, A.; WANG, X.J.; BABZIEN, M.; SKARITKA, J.; RAKOWSKY, G.; YAKIMENKO, V. 43 PARTICLE ACCELERATORS; ACCELERATORS; ELECTRON BEAMS; ELECTRONS; FREE ELECTRON LASERS; LASERS; MAGNETS; MODULATION; PEAK LOAD; PHOTOCATHODES; TRANSITION RADIATION; WIGGLER MAGNETS We are proposing an Atto-second electron beam generation and diagnostics experiment at the Brookhaven Accelerator Test facility (ATF) using 1 {micro}m Inverse Free Electron Laser (IFEL). The proposed experiment will be carried out by an BNL/LBNL collaboration, and it will be installed at the ATF beam line II. The proposed experiment will employ a one-meter long undulator with 1.8 cm period (VISA undulator). The electron beam energy will be 63 MeV with emittance less than 2 mm-mrad and energy spread less than 0.05%. The ATF photocathode injector driving laser will be used for energy modulation by Inverse Free Electron Laser (IFEL). With 10 MW laser peak power, about 2% total energy modulation is expected. The energy modulated electron beam will be further bunched through either a drift space or a three magnet chicane into atto-second electron bunches. The attosecond electron beam bunches will be analyzed using the coherent transition radiation (CTR). Brookhaven National Lab., Upton, NY (US) USDOE Office of Energy Research (ER) (US) United States 2002-02-01 English Technical Report Other Information: PBD: 1 Feb 2002 Medium: ED; Size: 14 pages OSTI ID: 793811 BNL--69056 AC02-98CH10886 R&D Project: LS2; Other: KA0403011; TRN: US200208%%109 BNL; RN02030247; INS-US0201057 2009-06-08 793811 http://www.osti.gov/bridge/servlets/purl/793811-DOV8nF/native/ An Ultra-Bright Pulsed Electron Beam With Low Longitudinal Emittance Zolotorev, M.; Commins, E.D.; Denes, P.; Hussain, Z.; Lebedev, G.V.; Lidia, S.M.; Robin, D.; Sannibale, F.; Schoenlein, R.W.; Vogel, R.A.; Wan, W.; /LBL, Berkeley; Heifets, S.A.; /SLAC; 43 PARTICLE ACCELERATORS; ACCELERATORS; BRIGHTNESS; ELECTRON BEAMS; ELECTRON SOURCES; ELECTRONS; ENERGY RESOLUTION; PAULI PRINCIPLE; SPATIAL RESOLUTION Accelerators,ACCPHY Most existing electron sources extract electrons from conductors. Since the actual temperature inside the conductor is much less than the Fermi temperature of the conduction electrons, the electron degeneracy {delta}{sub f} is close to 1, the maximum allowed by the Pauli exclusion principle. However, during extraction several factors conspire together to reduce {delta}{sub f} many orders of magnitude, limiting the achieved values to {approx} 10{sup -5}. A new concept is described for building a novel electron source designed to produce a pulsed beam with {delta}{sub f} {approx} 2 10{sup -3} and longitudinal emittance four orders of magnitude smaller than currently achieved values. This high brightness, low longitudinal emittance regime enables a wide range of novel applications that utilize angstrom-scale spatial resolution and eV-scale energy resolution. The current state of a proof-of-principle experiment conducted at LBNL is also described. Stanford Linear Accelerator Center (SLAC) http://www.slac.stanford.edu/cgi-wrap/pubpage?slac-pub-11685.html USDOE United States 2006-02-10 English Conference Conference: Prepared for Particle Accelerator Conference (PAC 05), Knoxville, Tennessee, 16-20 May 2005 Medium: ED; Size: 3 pages OSTI ID: 876032 SLAC-PUB-11685 AC02-76SF00515 TRN: US200604%%419 SLAC; RN06017139; INS-US0601017 2008-02-05 876032 http://www.osti.gov/bridge/servlets/purl/876032-CEhNq0/ Proposal for a High-Brightness Pulsed Electron Source Zolotorev, M.; Commins, E.D.; Heifets, S.; Sannibale, F.; /LBL, Berkeley /UC, Berkeley /SLAC; 43 PARTICLE ACCELERATORS; BRIGHTNESS; ELECTRON BEAMS; ELECTRON SOURCES; USES; DESIGN Accelerators,ACCPHY We propose a novel scheme for a high-brightness pulsed electron source, which has the potential for many useful applications in electron microscopy, inverse photo-emission, low energy electron scattering experiments, and electron holography. A description of the proposed scheme is presented. Stanford Linear Accelerator Center (SLAC) http://www.slac.stanford.edu/cgi-wrap/pubpage?slac-pub-12160.html USDOE United States 2006-10-16 English Conference Conference: Prepared for Workshop on the Physics and Applications of High Brightness Electron Beams (PAHBEB 2005), Erice, Sicily, Italy, 9-14 Oct 2005 Medium: ED; Size: 7 pages OSTI ID: 893770 SLAC-PUB-12160 AC02-76SF00515 TRN: US200625%%523 SLAC; RN06149729; INS-US0606089 2008-02-05 893770 http://www.osti.gov/bridge/servlets/purl/893770-Qmnqfq/ Development of a longitudinal density monitor for storage rings Zolotorev, M.; Beche, J.-F.; Byrd, J.; Datte, P.; De Santis, S.; Denes, P.; Placidi, M.; Ratti, A.; Riot, V.; Schoenlein, R.; Turner, W. 43 PARTICLE ACCELERATORS; ACCELERATORS; DIFFUSION; ELECTRONS; MODULATION; MONITORS; OSCILLATORS; PROTONS; RF SYSTEMS; SOLID STATE LASERS; STORAGE RINGS; SYNCHROTRONS RF STORAGE RINGS LONGITUDINAL BEAM DENSITY We report on development of a new storage ring operations tool for measurement of longitudinal beam density profile. The technique mixes synchrotron light with light from a mode locked solid-state laser oscillator in a non-linear crystal and detects the up-converted radiation with a photo-multiplier. The laser is phase locked to the storage ring RF system. The laser choices available for repetition frequency, pulse length and phase modulation give a very wide range of options for matching the bunch configuration of particular storage rings. Progress in the technology of solid-state lasers ensures this system can be made robust for routine use in storage ring operations. A very large number of important applications are possible including measurement of the fraction of untrapped particles prior to acceleration, the population of particles in the nominally unfilled RF buckets in a bunch train (''ghost bunches''), longitudinal tails, the diffusion of particles into the beam abort gap and th e normal bunch parameters of longitudinal shape and intensity. We are currently investigating application to two devices: (1) the 1.9 GeV ALS electron storage ring at LBNL with 328 RF buckets, 2ns bucket spacing, 276 nominally filled bunches, 15-30ps rms bunch length and (2) the 7 TeV LHC proton collider under construction at CERN with 35,640 RF buckets, 2.5 ns bucket spacing, 2,808 nominally filled bunches, 280-620 ps rms bunch length. A proof of principle experiment is being conducted on ALS. The results of the ALS experiment and detailed analyses of the application to LHC and its requirements are described. Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (US) INIS; OSTI as DE00813389 U.S. DOE. Director, Office of Science. High Energy Physics (US) United States 2003-05-28 English Conference Conference: 2003 Particle Accelerator Conference, Portland, OR (US), 05/12/2003--05/16/2003; Other Information: PBD: 28 May 2003 Medium: ED; Size: vp. OSTI ID: 813389 LBNL--52808 AC03-76SF00098 R&D Project: 459001; TRN: US200316%%179 LBNL; RN03073465; INS-US0303903 2008-02-05 813389 http://www.osti.gov/bridge/servlets/purl/813389-5qa7MW/native/ Negative hydrogen ion source research and beam parameters for accelerators Zolkin, Timofey V.; /Fermilab; 43 PARTICLE ACCELERATORS; ACCELERATORS; BEAM CURRENTS; CHARGE EXCHANGE; HYDROGEN IONS; ION SOURCES; MAGNETRONS; PERFORMANCE; PROBES; SCREENS Accelerators H{sup -} beams are useful for multi-turn charge-exchange stripping injection into circular accelerators. Studies on a modified ion source for this purpose are presented. This paper includes some theory about a H{sup -} magnetron discharge, ion-electron emission, emittance and problems linked with emittance measurement and calculations. Investigated parameters of the emittance probe for optimal performance give a screen voltage of 150 V and a probe step of about 5 mil. Normalized 90% emittance obtained for this H{sup -} source is 0.22 {pi} mm-mr, for an extraction voltage of 18 kV at a beam energy of 30 keV and a beam current of 11 mA. Fermi National Accelerator Laboratory (FNAL), Batavia, IL USDOE United States 2006-09-01 English Technical Report Medium: ED; Size: 8 pages OSTI ID: 897026 FERMILAB-TM-2360-AD AC02-76CH03000 TRN: US200704%%257 FNAL; RN07017550; INS-US0700969 2008-05-15 897026 http://www.osti.gov/bridge/servlets/purl/897026-jXfgy3/ Neutrino oscillations: analysis of the response of the detector of the MINOS experiment to neutrino interactions Zois, Miltiadis G.; /Athens U.; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; NEUTRINO OSCILLATION; RADIATION DETECTORS; RESPONSE FUNCTIONS; INTERACTIONS Experiment-HEP No abstract prepared. Fermi National Accelerator Laboratory (FNAL), Batavia, IL USDOE United States 2004-02-01 Greek Technical Report Medium: ED; Size: 258 pages OSTI ID: 892342 FERMILAB-MASTERS-2004-06 AC02-76CH03000 TRN: US200623%%5 FNAL; RN06141273; INS-US0605574 2008-05-15 892342 http://www.osti.gov/bridge/servlets/purl/892342-4Dq8EM/ DAPHNE Operation And Plans for DAPHNE2 Zobov, M.; Alesini, D.; Benedetti, G.; Biagini, M.E.; Biscari, C.; Boni, R.; Boscolo, M.; Clozza, A.; Delle Monache, G.; Di Pirro, G.; Drago, A.; Gallo, A.; Ghigo, A.; Guiducci, S.; Incurvati, M.; Ligi, C.; Marcellini, F.; Mazzitelli, G.; Milardi, C.; Pellegrino, L.; Preger, M.A.; /Frascati /Novosibirsk, IYF /SLAC; 43 PARTICLE ACCELERATORS; ACCELERATORS; LUMINOSITY; PHYSICS Accelerators,ACCPHY The e{sup +}e{sup -} collider DA{Phi}NE, a 1.02 GeV c.m. {Phi}-factory, has reached a peak luminosity of about 1.4 x 10{sup 32} cm{sup -2} s{sup -1} and a peak integrated luminosity in one day of about 8.6 pb{sup -1}. With the current rates the physics program of the three main experiments DEAR, FINUDA and KLOE will be completed by the end of 2007. In this paper we describe in detail the steps which have led to the luminosity improvement and the options for the upgrade of the collider towards higher energy and/or luminosity. Stanford Linear Accelerator Center (SLAC) http://www.slac.stanford.edu/cgi-wrap/pubpage?slac-pub-11655.html USDOE United States 2006-01-20 English Conference Conference: Prepared for Particle Accelerator Conference (PAC 05), Knoxville, Tennessee, 16-20 May 2005 Medium: ED; Size: 5 pages OSTI ID: 878011 SLAC-PUB-11655 AC02-76SF00515 TRN: US200609%%121 SLAC; RN06052655; INS-US0601788 2008-02-05 878011 http://www.osti.gov/bridge/servlets/purl/878011-k61MxV/ Nb3Sn Quadrupoles in the LHC IR Phase I Upgrade Zlobin,A.;Johnstone, J.; Kashikhin, V.; Mokhov, N.; Rakhno, I.; deMaria, R.; Peggs, S.; Robert-Demolaize, F.; Wanderer, P. 43 PARTICLE ACCELERATORS; ACCELERATORS; LUMINOSITY; MAGNETS; OPTICS; QUADRUPOLES After a number of years of operation at nominal parameters, the LHC will be upgraded for higher luminosity. This paper discusses the possibility of using a limited number of Nb{sub 3}Sn quadrupoles for hybrid optics layouts for the LHC Phase I luminosity upgrades with both NbTi and Nb{sub 3}Sn quadrupoles. Magnet parameters and issues related to using Nb{sub 3}Sn quadrupoles including aperture, gradient, magnetic length, field quality, operation margin, et cetera are discussed. Brookhaven National Laboratory Doe - Office Of Science United States 2008-06-23 English Conference Conference: 11th European Particle Accelerator Conference (EPAC); Genoa, Italy; 20080623 through 20080627 Medium: ED OSTI ID: 936304 BNL--81377-2008-CP DE-AC02-98CH10886 R&D Project: 8079; Other: KA1102053; TRN: US200818%%744 BNL; RN08121631; INS-US0805507 2009-06-08 936304 http://www.osti.gov/bridge/servlets/purl/936304-wDv2EK/ Nb3Sn quadrupoles in the LHC IR Phase I upgrade Zlobin, A.V.; Johnstone, J.A.; Kashikhin, V.V.; Mokhov, N.V.; Rakhno, I.L.; /Fermilab;de Maria, R.; Peggs, S.; Robert-Demolaize, G.; Wanderer, P.; /Brookhaven; 43 PARTICLE ACCELERATORS; ACCELERATORS; LUMINOSITY; MAGNETS; OPTICS; QUADRUPOLES Accelerators After a number of years of operation at nominal parameters, the LHC will be upgraded to a higher luminosity. This paper discusses the possibility of using a limited number of Nb{sub 3}Sn quadrupoles for hybrid optics layouts for the LHC Phase I luminosity upgrades with both NbTi and Nb{sub 3}Sn quadrupoles. Magnet parameters and issues related to using Nb{sub 3}Sn quadrupoles including aperture, gradient, magnetic length, field quality, operation margin, et cetera are discussed. Fermi National Accelerator Laboratory (FNAL), Batavia, IL USDOE United States 2008-06-01 English Conference Journal Name: Conf.Proc.C0806233:wepd037,2008; Conference: Presented at 11th European Particle Accelerator Conference (EPAC 08), Magazzini del Cotone, Genoa, Italy, 23-27 Jun 2008 Medium: ED; Size: 4 pages OSTI ID: 935791 FERMILAB-CONF-08-204-APC-TD AC02-76CH03000 TRN: US200816%%1011 FNAL; RN08106612; INS-US0804705 2008-10-30 935791 http://www.osti.gov/bridge/servlets/purl/935791-smKEPx/ Testing of Nb3Sn quadrupole coils using magnetic mirror structure Zlobin, A.V.; Andreev, N.; Barzi, E.; Bossert, R.; Chlachidze, G.; Kashikhin, V.S.; Kashikhin, V.V.; Lamm, M.; Novitski, I.; Tartaglia, M.; Tompkins, J.C.; /Fermilab; 43 PARTICLE ACCELERATORS; CABLES; DESIGN; FABRICATION; HEATERS; MAGNETIC MIRRORS; MIRRORS; MONITORS; PERFORMANCE; QUADRUPOLES; STRAINS; TESTING; THERMODYNAMIC PROPERTIES Accelerators This paper describes the design and parameters of a quadrupole mirror structure for testing the mechanical, thermal and quench performance of single shell-type superconducting quadrupole coils at field, current and force levels similar to that of real magnet. The concept was experimentally verified by testing two quadrupole coils, previously used in quadrupole models, in the developed mirror structure in the temperature range from 4.5 to 1.9 K. The coils were instrumented with voltage taps, heaters, and strain gauges to monitor their mechanical and thermal properties and quench performance. A new quadrupole coil made of improved Nb{sub 3}Sn RRP-108/127 strand and cable insulation based on E-glass tape was also tested using this structure. The fabrication and test results of the quadrupole mirror models are reported and discussed. Fermi National Accelerator Laboratory (FNAL), Batavia, IL USDOE United States 2009-07-01 English Conference Medium: ED; Size: 8 pages OSTI ID: 963440 FERMILAB-CONF-09-328-TD AC02-76CH03000 TRN: US200918%%360 FNAL; RN09108919; INS-US0903357 2009-10-14 963440 http://www.osti.gov/bridge/servlets/purl/963440-l6JqUX/ R and D of Nb(3)Sn accelerator magnets at Fermilab Zlobin, A.V.; Ambrosio, G.; Andreev, N.; Barzi, E; Bordini, B.; Bossert, R.; Carcagno, R.; Chichili, D.R.; DiMarco, J.; Elementi, L.; Feher, S.; Kashikhin, V.S.; Kashikhin, V.V.; Kephart, R.; Lamm, M.; Limon, P.J.; Novitski, I.; Orris, D.; Pischalnikov, Yu.; Schlabach, P.; Stanek, R.; /Fermilab; 43 PARTICLE ACCELERATORS; ACCELERATORS; CABLES; DESIGN; DIPOLES; FERMILAB; MAGNETS; SUPERCONDUCTIVITY; SUPERCONDUCTORS Accelerators Fermilab is developing and investigating different high-field magnet designs for present and future accelerators. The magnet R&amp;D program was focused on the 10-12 T accelerator magnets based on Nb{sub 3}Sn superconductor and explored both basic magnet technologies for brittle superconductors--wind-and-react and react-and-wind. Magnet design studies in support of LHC upgrades and VLHC are being performed. A series of 1-m long single-bore models of cos-theta Nb{sub 3}Sn dipoles based on wind-and-react technique was fabricated and tested. Three 1-m long flat racetracks and the common coil dipole model, based on a single-layer coil and wide reacted Nb{sub 3}Sn cable, have also been fabricated and tested. Extensive theoretical studies of magnetic instabilities in Nb{sub 3}Sn strands, cable and magnet were performed which led to successful 10 T dipole model. This paper presents the details of the Fermilab's high field accelerator magnet program, reports its status and major results, and formulates the program next steps. Fermi National Accelerator Laboratory (FNAL), Batavia, IL USDOE United States 2004-11-01 English Conference Conference: Prepared for Applied Superconductivity Conference: Harnessing the Magic (ASC 04), Jacksonville, Florida, 3-8 Oct 2004 Medium: ED; Size: 6 pages OSTI ID: 15017021 FERMILAB-CONF-04-273-TD AC02-76CH03000 TRN: US200516%%1428 FNAL; RN05097729; INS-US0503861 2008-05-12 15017021 http://www.osti.gov/bridge/servlets/purl/15017021-eDY2gu/native/ Development and test of Nb(3)Sn cos-theta dipoles based on PIT strands Zlobin, A.V.; Ambrosio, G.; Andreev, N.; Barzi, E.; Bossert, R.; Carcagno, R.; Chichili, D.R.; Elementi, L.; Feher, S.; Kashikhin, V.V.; Lamm, M.J.; Novitski, I.; Pischalnikov, Yu.; Sylvester, C.; Tartaglia, M.; Yamada, R.; /Fermilab; 43 PARTICLE ACCELERATORS; ACCELERATORS; CONFIGURATION; DESIGN; DIPOLES; FABRICATION; FERMILAB; MAGNETS; SUPERCONDUCTIVITY; TESTING Accelerators Fermilab is involved in the development of new generation high-field accelerator magnets using state-of-the-art Nb{sub 3}Sn strands produced using different technologies. Two 1-m long models--mirror configuration and dipole magnet--were fabricated recently at Fermilab based on powder-in-tube (PIT) Nb{sub 3}Sn strands with small effective filament size. This paper describes the parameters of superconducting strands and cable, the details of magnet design and fabrication procedure, and reports the results of PIT coil testing. Fermi National Accelerator Laboratory (FNAL), Batavia, IL USDOE United States 2004-11-01 English Conference Conference: Prepared for Applied Superconductivity Conference: Harnessing the Magic (ASC 04), Jacksonville, Florida, 3-8 Oct 2004 Medium: ED; Size: 4 pages OSTI ID: 15017022 FERMILAB-CONF-04-274-TD AC02-76CH03000 TRN: US200621%%535 FNAL; RN06127255; INS-US0605259 2008-05-12 15017022 http://www.osti.gov/bridge/servlets/purl/15017022-eDY2gu/native/ Nb3Sn accelerator magnet technology R&D at Fermilab Zlobin, A.V.; Ambrosio, G.; Andreev, N.; Barzi, E.; Bossert, R.; Carcagno, R.; Chlachidze, G.; DiMarco, J.; Feher, S.; Kashikhin, V.S.; Kashikhin, V.V.; /Fermilab; 43 PARTICLE ACCELERATORS; ACCELERATORS; DIPOLES; FERMILAB; MAGNETS; MIRRORS; PERFORMANCE; SUPERCONDUCTORS; TESTING; NIOBIUM COMPOUNDS Accelerators Accelerator magnets based on Nb{sub 3}Sn superconductor are being developed at Fermilab. Six nearly identical 1-m long dipole models and several mirror configurations were built and tested demonstrating magnet performance parameters and their reproducibility. The technology scale up program has started by building and testing long dipole coils. The results of this work are reported in the paper. Fermi National Accelerator Laboratory (FNAL), Batavia, IL USDOE United States 2007-06-01 English Conference Conference: Presented at Particle Accelerator Conference (PAC 07), Albuquerque, New Mexico, 25-29 Jun 2007 Medium: ED; Size: 3 pages OSTI ID: 917838 FERMILAB-CONF-07-256-TD AC02-76CH03000 TRN: US200817%%946 FNAL; RN08113920; INS-US0805145 2008-09-29 917838 http://www.osti.gov/bridge/servlets/purl/917838-mBIyxt/ Quench performance of Nb3Sn cos-theta coils made of 108/127 RRP strands Zlobin, A.V.; Ambrosio, G.; Andreev, N.; Barzi, E.; Bossert, R.; Carcagno, R.; Kashikhin, V.S.; Kashikhin, V.V.; Lamm, M.J.; Nobrega, F.; Novitski, I.; /Fermilab; 43 PARTICLE ACCELERATORS; ACCELERATORS; CABLES; CRYOGENICS; DESIGN; DIPOLES; FABRICATION; FERMILAB; MAGNETS; PERFORMANCE Accelerators A series of 1-m long Nb{sub 3}Sn dipole models has been built at Fermilab in an attempt to refine the wind-and-react technology for Nb3Sn accelerator magnets. Three models made with Powder-in-Tube Nb{sub 3}Sn strand reached their design field of 10 T demonstrating a good reproducibility of magnet quench performance and field quality. Recently a new dipole 'mirror' model based on Nb{sub 3}Sn coil made of improved Restack Rod Process strand was constructed and tested reaching the maximum field above 11 T. This paper describes the parameters of the RRP strand and cable used as well as the design, fabrication and test results of this magnet. Fermi National Accelerator Laboratory (FNAL), Batavia, IL USDOE United States 2007-07-01 English Conference Conference: Presented at 2007 Cryogenic Engineering Conference and International Cryogenic Materials Conference (CEC-ICMC), Chattanooga, Tennessee, 16-20 Jul 2007 Medium: ED; Size: 8 pages OSTI ID: 919940 FERMILAB-CONF-07-387-TD AC02-76CH03000 TRN: US200822%%624 FNAL; RN08142127; INS-US0806521 2008-11-24 919940 http://www.osti.gov/bridge/servlets/purl/919940-tB1sY5/ A Measurement of the Neutral B Meson Lifetime using Partially Reconstructed B0 -&gt; D*-pi+ Decays Zito, Marco 43 PARTICLE ACCELERATORS; B MESONS; DECAY; LIFETIME; LUMINOSITY; PIONS; STORAGE RINGS The neutral B meson lifetime has been measured with the data collected by the BABAR detector at the PEP-II storage ring during the year 2000 for a total integrated luminosity of 20.3 fb{sup -1}. The B{sup 0} {yields} D*{sup -} {pi}{sup +} decays have been selected with a partial reconstruction method in which only the fast pion from the B{sup 0} decay and the slow pion from D*{sup -} {yields} {bar D}{sup 0}{pi}{sup -} are reconstructed. The B{sup 0} lifetime has been measured to be 1.510 {+-} 0.040 {+-} 0.038 ps with a sample of 6971 {+-} 241 reconstructed signal events. Stanford Linear Accelerator Center, Menlo Park, CA (US) USDOE Office of Energy Research (ER) (US) United States 2002-03-27 English Technical Report Other Information: PBD: 27 Mar 2002 Topical Medium: ED; Size: vp. OSTI ID: 799036 SLAC-PUB-9185 AC03-76SF00515 TRN: US200222%%211 SLAC; RN02090758; INS-US0205173 2008-02-05 799036 http://www.osti.gov/bridge/servlets/purl/799036-s46xCz/native/ Measurement of the B0 Meson Lifetime with Partial Reconstruction of B0-&gt;D*-pi+ and B0-&gt;D*-rho+ Decays zito, marco 43 PARTICLE ACCELERATORS; B MESONS; LIFETIME; LUMINOSITY; MESONS; STORAGE RINGS; VALIDATION The neutral B meson lifetime is measured with the data collected by the BABAR detector at the PEP-II storage ring during the years 1999 and 2000, with a total integrated luminosity of 20.7 fb{sup -1}. The decays B{sup 0} {yields} D*{sup -} {pi}{sup +} and B{sup 0} {yields} D*{sup -} {rho}{sup +} are selected with a partial-reconstruction technique, yielding samples of 6970 {+-} 240 and 5520 {+-} 250 signal events, respectively. With these events, the B{sup 0} lifetime is measured to be 1.533 {+-} 0.034 (stat.) {+-} 0.038 (syst.) ps. This measurement serves as a test and validation of procedures required to measure the CP violation parameter sin (2{beta} + {gamma}) with partial reconstruction of these modes. Stanford Linear Accelerator Center, Menlo Park, CA (US) USDOE Office of Science (US) United States 2002-12-05 English Technical Report Other Information: PBD: 5 Dec 2002 Topical Medium: ED; Size: 8 pages OSTI ID: 808714 SLAC-PUB-9602 AC03-76SF00515 TRN: US200308%%138 SLAC; RN03035433; INS-US0302583 2008-02-05 808714 http://www.osti.gov/bridge/servlets/purl/808714-42JaUk/native/ International scoping study: accelerator working group report Zisman, Michael; Zisman, M.S. 43; ACCELERATORS; DESIGN; HIGH ENERGY PHYSICS; NEUTRINOS During the past several years, an International Scoping Study (ISS) of a Neutrino Factory was carried out, with the aim of developing an internationally accepted baseline facility design. Progress toward that goal will be described. Many of the key technical aspects of a Neutrino Factory facility design are presently being investigated experimentally, and the status of these investigations will be mentioned. Plans for the recently launched International Design Study (IDS), which serves as a follow-on to the ISS, will be briefly described. Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (US) Accelerator&amp; Fusion Research Division United States 2006-09-30 English Conference Conference: 2007 Europhysics Conference on High Energy Physics, Manchester, England, July 19-25 2007.; Related Information: Journal Publication Date: 2008 Medium: ED; Size: 5 OSTI ID: 936607 LBNL-859E DE-AC02-05CH11231 TRN: US200818%%949 LBNL; RN08121828; INS-US0805599 2008-10-02 936607 http://www.osti.gov/bridge/servlets/purl/936607-8AdwGt/ Technical implementation of feasibility study-II design Zisman, Michael S.; Ozaki, Satoshi; Palmer, Robert B. 43 PARTICLE ACCELERATORS; HIGH ENERGY PHYSICS; FEASIBILITY STUDIES; DESIGN; IMPLEMENTATION; MUON BEAMS; NEUTRINOS; PARTICLE PRODUCTION; LINEAR COLLIDERS; STORAGE RINGS NEUTRINO FACTORY An updated Feasibility Study for a high-performance Neutrino Factory has been undertaken by Brookhaven National Laboratory (BNL) and the Neutrino Factory and Muon Collider Collaboration (MC). We describe the technical implementation of the facility. Details of the key components are shown, and R and D activities that need to be addressed to proceed toward a facility design are indicated. Lawrence Berkeley National Lab., CA (US) INIS; OSTI as DE00783880 USDOE Director, Office of Science. Office of High Energy and Nuclear Physics. Division of High Energy Physics (US) United States 2001-03-22 English Conference Conference: High Energy Accelerator Conference, Tsukuba (JP), 03/24/2001--03/30/2001; Other Information: PBD: 22 Mar 2001 Medium: ED; Size: vp. OSTI ID: 783880 LBNL--48231 AC03-76SF00098 R&D Project: Z3MCMA; TRN: AH200128%%236 LBNL; EDB-01:070442; INS-US0104103 2008-02-05 783880 http://www.osti.gov/bridge/servlets/purl/783880-FkIv50/webviewable/ Neutrino factory and muon collider collaboration R and D activities Zisman, Michael S.; Neutrino Factory and Muon Collider Collaborat 43 PARTICLE ACCELERATORS; CONSTRUCTION; DESIGN; FEASIBILITY STUDIES; INTERNATIONAL COOPERATION; MUON BEAMS; NEUTRINOS; COMPUTERIZED SIMULATION; PARTICLE PRODUCTION; LINEAR COLLIDERS; STORAGE RINGS NEUTRINO FACTORY MUON BEAM The Neutrino Factory and Muon Collider Collaboration (MC) comprises about 140 U.S. and non-U.S. accelerator and particle physicists. The MC is carrying out an R and D program aimed at validating the critical design concepts required for the construction of such machines. We are committed to encouraging international cooperation and coordination of the R and D effort. Main activities of the MC include a Targetry program, a MUCOOL program, a component development program, and a theory and simulation effort. Moreover, the MC has participated in several feasibility studies for a complete Neutrino Factory facility, with the aim of identifying any additional R and D activities needed to prepare a Zeroth-order Design Report (ZDR) in about two years and a Conceptual Design report (CDR) about two years thereafter. In this paper, the R and D goals in each area will be indicated, and the present status and future plans of the R and D program will be described. Lawrence Berkeley National Lab., CA (US) INIS; OSTI as DE00783881 USDOE Director, Office of Science. Office of High Energy and Nuclear Physics. Division of High Energy Physics (US) United States 2001-03-22 English Conference Conference: High Energy Accelerator Conference 2001, Tsukuba (JP), 03/24/2001--03/30/2001; Other Information: PBD: 22 Mar 2001 Medium: ED; Size: vp. OSTI ID: 783881 LBNL--48238 AC03-76SF00098 R&D Project: Z3MCMA; TRN: AH200128%%237 LBNL; EDB-01:070443; INS-US0104104 2008-02-05 783881 http://www.osti.gov/bridge/servlets/purl/783881-vBbto4/webviewable/ Review of North American Neutrino Factory R and D Zisman, Michael S.; Neutrino Factory and Muon Collider Collaboration 43 PARTICLE ACCELERATORS; CAVITIES; IONIZATION; MICE; MUONS; NEUTRINOS; SIMULATION; STORAGE RINGS We report here on the R and D program of the U.S. Neutrino Factory and Muon Collider Collaboration. Our effort includes work on targetry, muon ionization cooling, simulation work, and development of superconducting RF cavities. In addition, we are involved in the international effort toward a Muon Ionization Cooling Experiment (MICE). Recent activities in all these areas will be described. Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (US) INIS; OSTI as DE00805153 USDOE Director, Office of Science. Office of High Energy and Nuclear Physics. Division of High Energy Physics (US) United States 2002-10-07 English Conference Conference: 4th Workshop on Neutrino Factories based on Muon Storage Rings, NuFact02, London (GB), 07/01/2002--07/06/2002; Other Information: PBD: 7 Oct 2002 Medium: ED; Size: vp. OSTI ID: 805153 LBNL--51611 AC03-76SF00098 R&D Project: Z3MCMA; Other: B& R KA0403012; TRN: US200305%%158 LBNL; RN03020301; INS-US0301666 2008-02-05 805153 http://www.osti.gov/bridge/servlets/purl/805153-7YOnyQ/native/ Neutrino Factory R&amp;D in the U.S. Zisman, Michael S.; for the Neutrino Factory and Muon Collider Collabo 43 PARTICLE ACCELERATORS; ACCELERATION; IONIZATION; MICE; MUONS; NEUTRINOS NEUTRINO FACTORY MUON We report here on the technical progress and R&amp;D plans of the U.S. Neutrino Factory and Muon Collider Collaboration. Programs in targetry, cooling, acceleration, and simulations are covered. U.S. activities in support of the international Muon Ionization Cooling Experiment (MICE) are also described. Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (US) INIS; OSTI as DE00816792 USDOE Director, Office of Science. High Energy Physics (US) United States 2003-09-24 English Conference Conference: NuFact03, 5th International Workshop on Neutrino Factories & Superbeams, New York, NY (US), 06/05/2003--06/11/2003; Other Information: PBD: 24 Sep 2003 Medium: ED; Size: vp. OSTI ID: 816792 LBNL--53832 AC03-76SF00098 R&D Project: Z3MCMA; TRN: US200321%%202 LBNL; RN03095839; INS-US0305141 2008-02-05 816792 http://www.osti.gov/bridge/servlets/purl/816792-u45VAm/native/ Future Accelerator Challenges in Support of High-Energy Physics Zisman, Michael S.; Zisman, M.S. 43; ACCELERATORS; ACCURACY; CERN; COMMISSIONING; DESIGN; HADRONS; LINEAR COLLIDERS; MUONS; NEUTRINOS; PHYSICS Historically, progress in high-energy physics has largely been determined by development of more capable particle accelerators. This trend continues today with the imminent commissioning of the Large Hadron Collider at CERN, and the worldwide development effort toward the International Linear Collider. Looking ahead, there are two scientific areas ripe for further exploration--the energy frontier and the precision frontier. To explore the energy frontier, two approaches toward multi-TeV beams are being studied, an electron-positron linear collider based on a novel two-beam powering system (CLIC), and a Muon Collider. Work on the precision frontier involves accelerators with very high intensity, including a Super-BFactory and a muon-based Neutrino Factory. Without question, one of the most promising approaches is the development of muon-beam accelerators. Such machines have very high scientific potential, and would substantially advance the state-of-the-art in accelerator design. The challenges of the new generation of accelerators, and how these can be accommodated in the accelerator design, are described. To reap their scientific benefits, all of these frontier accelerators will require sophisticated instrumentation to characterize the beam and control it with unprecedented precision. Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (US) Accelerator&amp; Fusion Research Division United States 2008-05-03 English Conference Conference: Beam Instrumentation Workshop 2008, Tahoe City, CA , May 4-8, 2008 Medium: ED; Size: 9 OSTI ID: 928957 LBNL-266E DE-AC02-05CH11231 TRN: US200811%%446 LBNL; RN08071377; INS-US0803299 2008-06-12 928957 http://www.osti.gov/bridge/servlets/purl/928957-JGj72C/ Status of the International Muon Ionization Cooling Experiment (MICE) Zisman, Michael S.; Zisman, Michael S. 43; ACCELERATORS; ACCURACY; CAVITIES; CONSTRUCTION; DESIGN; FABRICATION; IONIZATION; MICE; MUONS; PHASE SPACE; SOLENOIDS; SPECTROMETERS An international experiment to demonstrate muonionization cooling is scheduled for beam at RutherfordAppleton Laboratory (RAL) in 2007. The experimentcomprises one cell of the Study II cooling channel [1],along with upstream and downstream detectors to identifyindividual muons and measure their initial and final 6Dphase-space parameters to a precision of 0.1percent. Magneticdesign of the beam line and cooling channel are completeand portions are under construction. The experiment willbe described, including cooling channel hardware designs,fabrication status, and running plans. Phase 1 of theexperiment will prepare the beam line and providedetector systems, including time-of-flight, Cherenkov,scintillating-fiber trackers and their spectrometersolenoids, and an electromagnetic calorimeter. The Phase2 system will add the cooling channel components,including liquid-hydrogen absorbers embedded insuperconducting Focus Coil solenoids, 201-MHz normalconductingRF cavities, and their surrounding CouplingCoil solenoids. The MICE Collaboration goal is tocomplete the experiment by 2010; progress toward this isdiscussed. Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (US) Accelerator&amp; Fusion Research Division United States 2007-02-02 English Conference Conference: 22nd Particle Accelerator Conference, Albuquerque, New Mexico, June 25-29, 2007, Medium: ED; Size: 3 OSTI ID: 936608 LBNL-862E DE-AC02-05CH11231 TRN: US200818%%950 LBNL; RN08121829; INS-US0805600 2008-10-02 936608 http://www.osti.gov/bridge/servlets/purl/936608-y5BUTq/ Electron Positron Factories Zisman, Michael S.; Chattopadhyay, S.; Garren, Alper A.; Lambertson, Glen; /LBL, Berkeley;Bloom, Elliott D.; Corbett, William J.; Cornacchia, Massimo; Dorfan, Jonathan M.; /SLAC;Barletta, William A.; /LLNL, Livermore;Mohl, Dieter; /CERN;Pellegrini, Claudio; /UCLA;Rice, David; /Cornell U., LNS;Sands, Matthew; /UC, Santa Cruz; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ELECTRONS; POSITRONS; HIGH ENERGY PHYSICS Accelerators,ACCPHY No abstract prepared. Stanford Linear Accelerator Center (SLAC) http://www.slac.stanford.edu/cgi-wrap/pubpage?slac-pub-12487.html USDOE United States 2007-04-25 English Conference Conference: Presented at 1990 Summer Study on High-Energy Physics-Research Directions for the Decade Conf., Snowmass, CO, Jun 25 - Jul 13, 1990 Medium: ED; Size: 16 pages OSTI ID: 902724 SLAC-PUB-12487 AC02-76SF00515 TRN: US200722%%331 SLAC; RN07130271; INS-US0703579 2008-02-05 902724 http://www.osti.gov/bridge/servlets/purl/902724-AbK9yb/ Technical design aspects of Feasibility Study-II Zisman, Michael S. 43 PARTICLE ACCELERATORS; DESIGN; IMPLEMENTATION; MUONS; NEUTRINOS; PERFORMANCE; PROTONS; STORAGE RINGS; FEASIBILITY STUDIES NEUTRINO FACTORY MUON STORAGE RING Feasibility Study-II examined a high-performance Neutrino Factory providing 1 x 10{sup 20} neutrinos per year aimed at a long-baseline detector. The Study was sponsored jointly by BNL and the Neutrino Factory and Muon Collider Collaboration ration (MC) and is based on a 1 MW proton driver operating at 24 GeV, i.e., an upgraded version of the AGS accelerator. Compared with the earlier FNAL-sponsored study (Feasibility Study-I), there is a sixfold improvement in performance. Here we describe details of the implementation of Study-II concepts and discuss their efficacy. Alternative approaches that will be pursued in follow-on R and D activities are also described briefly. Lawrence Berkeley National Lab., CA (US) INIS; OSTI as DE00787167 USDOE Director, Office of Science. Office of High Energy and Nuclear Physics. Division of High Energy Physics (US) United States 2001-08-15 English Conference Conference: The 3rd International Workshop on Neutrino Factories based on Muon Storage Rings, NuFACT'01, Tsukuba (JP), 05/24/2001--05/30/2001; Other Information: PBD: 15 Aug 2001 Medium: ED; Size: vp. OSTI ID: 787167 LBNL--48814 AC03-76SF00098 R&D Project: Z3MCMA; TRN: AH200134%%89 LBNL; EDB-01:100027; INS-US0110438 2008-02-05 787167 http://www.osti.gov/bridge/servlets/purl/787167-615AxH/native/ R&amp;D Toward Neutrino Factories and Muon Colliders Zisman, Michael S. 43 PARTICLE ACCELERATORS; ACCELERATION; ACCELERATORS; CAVITIES; DECAY; DESIGN; IONIZATION; MICE; MUON BEAMS; MUONS; NEUTRINOS; PRODUCTION; STORAGE R&amp;D aimed at the production, acceleration, and storage of intense muon beams is under way in the U.S., in Europe, and in Japan. Considerable progress has been made in the past few years toward the design of a ''Neutrino Factory'' in which a beam of 20-50 GeV mu- or mu+ is stored. Decay neutrinos from the beam illuminate a detector located roughly 3000 km from the ring. Here, we briefly describe the ingredients of a Neutrino Factory and then discuss the current R&amp;D program and its results. A key concept in the design is ''ionization cooling,'' a process whereby the muon emittance is reduced by repeated interactions with an absorber material followed by reacceleration with high-gradient rf cavities. Plans to test this concept in the Muon Ionization Cooling Experiment (MICE) are well along and are described briefly. Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (US) INIS; OSTI as DE00815596 USDOE Director, Office of Science. High Energy Physics (US) United States 2003-06-24 English Conference Conference: 2003 Particle Accelerator Conference, Portland, OR (US), 05/12/2003--05/16/2003; Other Information: PBD: 24 Jun 2003 Medium: ED; Size: vp. OSTI ID: 815596 LBNL--53126 AC03-76SF00098 R&D Project: Z3MCMA; TRN: US200319%%434 LBNL; RN03088559; INS-US0304719 2008-02-05 815596 http://www.osti.gov/bridge/servlets/purl/815596-T7Ghrs/native/ STATUS OF THE INTERNATIONAL MUON IONIZATION COOLING EXPERIMENT(MICE) Zisman, Michael S. 43; ACCELERATORS; ACCURACY; CAVITIES; CONSTRUCTION; DESIGN; FABRICATION; IONIZATION; MICE; MUONS; PHASE SPACE; SOLENOIDS; SPECTROMETERS Muon Ionization Cooling An international experiment to demonstrate muon ionization cooling is scheduled for beam at Rutherford Appleton Laboratory (RAL) in 2007. The experiment comprises one cell of the Study II cooling channel [1], along with upstream and downstream detectors to identify individual muons and measure their initial and final 6D phase-space parameters to a precision of 0.1%. Magnetic design of the beam line and cooling channel are complete and portions are under construction. The experiment will be described, including cooling channel hardware designs, fabrication status, and running plans. Phase 1 of the experiment will prepare the beam line and provide detector systems, including time-of-flight, Cherenkov, scintillating-fiber trackers and their spectrometer solenoids, and an electromagnetic calorimeter. The Phase 2 system will add the cooling channel components, including liquid-hydrogen absorbers embedded in superconducting Focus Coil solenoids, 201-MHz normal-conducting RF cavities, and their surrounding Coupling Coil solenoids. The MICE Collaboration goal is to complete the experiment by 2010; progress toward this is discussed. Ernest Orlando Lawrence Berkeley NationalLaboratory, Berkeley, CA (US) USDOE Director. Office of Science. High EnergyPhysics United States 2007-07-18 English Conference Conference: 2007 Particle Accelerator Conference,Albuquerque, NM, June 25-29, 2007 Medium: ED OSTI ID: 925537 LBNL--63124 DE-AC02-05CH11231 R&D Project: 453101; Other: BnR: KA1501020; TRN: US200809%%794 LBNL; RN08055969; INS-US0803053 2008-05-15 925537 http://www.osti.gov/bridge/servlets/purl/925537-olj2by/ Technical Challenges and Scientific Payoffs of Muon BeamAccelerators for Particle Physics Zisman, Michael S. 43; ACCELERATORS; ANTINEUTRINOS; APERTURES; ELECTRON NEUTRINOS; FERMILAB; HADRONS; LEPTONS; LINEAR COLLIDERS; MAGNETS; MUON BEAMS; MUONS; NEUTRINOS; PHASE SPACE; PHYSICS; PROTONS; SOLENOIDS; STANFORD LINEAR ACCELERATOR CENTER; STORAGE RINGS; SUPERCONDUCTING MAGNETS Muon accelerators Neutrino Factory Muon Collider Historically, progress in particle physics has largely beendetermined by development of more capable particle accelerators. Thistrend continues today with the recent advent of high-luminosityelectron-positron colliders at KEK and SLAC operating as "B factories,"the imminent commissioning of the Large Hadron Collider at CERN, and theworldwide development effort toward the International Linear Collider.Looking to the future, one of the most promising approaches is thedevelopment of muon-beam accelerators. Such machines have very highscientific potential, and would substantially advance thestate-of-the-art in accelerator design. A 20-50 GeV muon storage ringcould serve as a copious source of well-characterized electron neutrinosor antineutrinos (a Neutrino Factory), providing beams aimed at detectorslocated 3000-7500 km from the ring. Such long baseline experiments areexpected to be able to observe and characterize the phenomenon ofcharge-conjugation-parity (CP) violation in the lepton sector, and thusprovide an answer to one of the most fundamental questions in science,namely, why the matter-dominated universe in which we reside exists atall. By accelerating muons to even higher energies of several TeV, we canenvision a Muon Collider. In contrast with composite particles likeprotons, muons are point particles. This means that the full collisionenergy is available to create new particles. A Muon Collider has roughlyten times the energy reach of a proton collider at the same collisionenergy, and has a much smaller footprint. Indeed, an energy frontier MuonCollider could fit on the site of an existing laboratory, such asFermilab or BNL. The challenges of muon-beam accelerators are related tothe facts that i) muons are produced as a tertiary beam, with very large6D phase space, and ii) muons are unstable, with a lifetime at rest ofonly 2 microseconds. How these challenges are accommodated in theaccelerator design will be described. Both a Neutrino Factory and a MuonCollider require large numbers of challenging superconducting magnets,including large aperture solenoids, closely spaced solenoids withopposing fields, shielded solenoids, very high field (~;40-50 T)solenoids, and storage ring magnets with a room-temperature midplanesection. Uses for the various magnets will be outlined, along withR&D plans to develop these and other required components of suchmachines.IEEE Ernest Orlando Lawrence Berkeley NationalLaboratory, Berkeley, CA (US) USDOE Director. Office of Science. High EnergyPhysics United States 2007-09-25 English Conference Conference: The 20th Biennial Conference on MagnetTechnology, Philadelphia, PA, August 27-31, 2007 Medium: ED OSTI ID: 932527 LBNL--63477 DE-AC02-05CH11231 R&D Project: 453101; Other: BnR: KA1501020; TRN: US200813%%99 LBNL; RN08083454; INS-US0803552 2008-07-21 932527 http://www.osti.gov/bridge/servlets/purl/932527-WtW5HV/ The PEP-II Project: Low-Energy Ring Design and Project Status Zisman, Michael S. 43; ALUMINIUM; COPPER; DAMPING; DESIGN; ELECTROMAGNETS; FEEDBACK; GETTERS; PERMANENT MAGNETS; PHOTONS; POSITRONS; RF SYSTEMS; STAINLESS STEELS; SUBLIMATION; SYNCHROTRON RADIATION; TITANIUM; VACUUM SYSTEMS We describe the present status of the PEP-II project. The project comprises four major systems: Injector, High-Energy Ring (HER), Low-Energy Ring (LER), and Interaction Region (IR). We focus in detail on the design of the LER, as its parameters and requirements are most closely related to those required for the Beijing Tau-Charm Factory rings. The PEP-II LER is a high-current, 3.1-GeV positron ring mounted above the 9-GeV HER. The LER uses a wiggler located in one of its six straight sections to provide emittance control and additional damping. We describe the rather complicated IR, which must transport the LER beam into the plane of the HER, focus it to a common beam size, and separate the beams after the head-on collisions. Both permanent magnet and conventional electromagnets are used in this area. The LER lattice has now adopted a simplified non-interleaved sextupole correction scheme that has reduced the required number of sextupoles substantially. We describe the LER vacuum system, one of the most challenging subsystems in PEP-II. It employs several technologies. In the arcs, aluminum extrusions and titanium sublimation pumps are employed; the straight sections use stainless steel chambers with lumped ion pumps. In the wiggler area, an extended copper photon dump with nonevaporable getter (NEG) pumps is employed to handle the very large synchrotron radiation power. The design of the room-temperature RF system, the bunch-by-bunch longitudinal and transverse feedback systems, and some of the special diagnostics will be described briefly. The PEP-II project remains on schedule to begin commissioning of the HER in April 1997, followed by the LER a year later. Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (US) Accelerator&amp; Fusion Research Division United States 2006-01-02 English Technical Report Medium: ED OSTI ID: 943453 LBNL-39032 DE-AC02-05CH11231 TRN: US200902%%272 LBNL; RN09003922; INS-US0900425 2009-02-02 943453 http://www.osti.gov/bridge/servlets/purl/943453-cim7pe/ Neutrino Factories and Beta Beams Zisman, Michael S. 43 PARTICLE ACCELERATORS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ACCELERATORS; CERN; CONSTRUCTION; DESIGN; IONIZATION; MERCURY; MUONS; NEUTRINOS; PERFORMANCE; SCHEDULES; TARGETS Neutrino Factory Beta Beam In this paper we briefly review the concepts of Neutrino Factories and Beta Beam facilities, and indicate the main challenges in terms of beam performance and technological developments. We also describe the worldwide organizations that have embarked on defining and carrying out the necessary R&amp;D on component design, beam simulations of facility performance, and benchmarking of key subsystems via actual beam tests. Currently approved subsystem tests include the Muon Ionization Cooling Experiment (MICE), under construction at Rutherford Appleton Laboratory, and the Mercury Intense Target (MERIT) experiment, to be carried out at CERN. These experiments are briefly described, and their schedules are indicated.none, none Ernest Orlando Lawrence Berkeley NationalLaboratory, Berkeley, CA (US) USDOE Director. Office of Science. Office of AdvancedScientific Computing Research. Office of High Energy Physics United States 2006-06-21 English Conference Conference: Tenth European Particle Accelerator Conference,EPAC06, Edinburgh, Scotland, June 26-30, 2006 Medium: ED OSTI ID: 889251 LBNL--59359 DE-AC02-05CH11231 R&D Project: 453101; Other: BnR: KA1501020; TRN: US200623%%753 LBNL; RN06142007; INS-US0605916 2008-02-05 889251 http://www.osti.gov/bridge/servlets/purl/889251-1H3qjG/ International Scoping Study of a Future Accelerator NeutrinoComplex Zisman, Michael S. 43 PARTICLE ACCELERATORS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ACCELERATION; ACCELERATORS; DECAY; DESIGN; HYBRID SYSTEMS; IONIZATION; LINEAR ACCELERATORS; NEUTRINOS; PHYSICS; PROTONS; ROTATION; SYNCHROTRONS; TARGETS Neutrino Factory The International Scoping Study (ISS), launched at NuFact05 to evaluate the physics case for a future neutrino facility, along with options for the accelerator complex and detectors, is laying the foundations for a subsequent conceptual-design study. It is hosted by Rutherford Appleton Laboratory (RAL) and organized by the international community, with participants from Europe, Japan, and the U.S. Here we cover the work of the Accelerator Working Group. For the 4-MW proton driver, linacs, synchrotrons, and Fixed-Field Alternating Gradient (FFAG) rings are considered. For targets, issues of both liquid-metal and solid materials are examined. For beam conditioning, (phase rotation, bunching, and ionization cooling), we evaluate schemes both with and without cooling, the latter based on scaling-FFAG rings. For acceleration, we examine scaling FFAGs and hybrid systems comprising linacs, dogbone RLAs, and non-scaling FFAGs. For the decay ring, we consider racetrack and triangular shapes, the latter capable of simultaneously illuminating two different detectors at different long baselines. Comparisons are made between various technical approaches to identify optimum design choices.none, none Ernest Orlando Lawrence Berkeley NationalLaboratory, Berkeley, CA (US) USDOE Director. Office of Science. Office of AdvancedScientific Computing Research. Office of High Energy Physics United States 2006-06-21 English Conference Conference: Tenth European Particle Accelerator Conference,EPAC06, Edinburgh, Scotland, June 26-30, 2006 Medium: ED OSTI ID: 889252 LBNL--59360 DE-AC02-05CH11231 R&D Project: 453101; Other: BnR: KA1501020; TRN: US200623%%754 LBNL; RN06142008; INS-US0605917 2008-02-05 889252 http://www.osti.gov/bridge/servlets/purl/889252-VWQpeN/ Review of U.S. Neutrino Factory Studies Zisman, Michael S. 43 PARTICLE ACCELERATORS; ACCELERATORS; DESIGN; FEASIBILITY STUDIES; MUONS; NEUTRINOS; PHYSICS Neutrino Factory We summarize the status of the two U.S. feasibility studies carried out by the Neutrino Factory and Muon Collider Collaboration (NFMCC) along with recent improvements to Neutrino Factory design developed during the American Physical Society (APS) Neutrino Physics Study. Suggested accelerator topics for the International Scoping Study (ISS) are also indicated. Ernest Orlando Lawrence Berkeley NationalLaboratory, Berkeley, CA (US) USDOE Director. Office of Science. Office of AdvancedScientific Computing Research. Office of High Energy Physics United States 2005-08-23 English Conference Conference: 7th International Workshop on Neutrino Factoriesand Superbeams, Frascati, Italy, June 21 - 26,2005 Medium: ED OSTI ID: 891210 LBNL--58360 DE-AC02-05CH11231 R&D Project: 453101; Other: BnR: KA1501020; TRN: US200621%%671 LBNL; RN06127388; INS-US0605319 2008-02-05 891210 http://www.osti.gov/bridge/servlets/purl/891210-miDoOU/ Neutrino Factory Accelerator R&D: Status and Priorities Zisman, Michael S. 43 PARTICLE ACCELERATORS; ACCELERATORS; NEUTRINOS; LAWRENCE BERKELEY LABORATORY Neutrino Factory R&D This paper summarizes the status of worldwide Neutrino Factory R&amp;D efforts. Activities are categorized as simulations, component development, and system tests. An indication of R&amp;D tasks that remain to be accomplished is also given. Ernest Orlando Lawrence Berkeley NationalLaboratory, Berkeley, CA (US) USDOE Director. Office of Science. Office of AdvancedScientific Computing Research. Office of High Energy Physics United States 2005-08-23 English Conference Conference: 7th International Workshop on Neutrino Factoriesand Superbeams, Frascati, Italy, June 21 - 26,2005 Medium: ED OSTI ID: 891331 LBNL--58361 DE-AC02-05CH11231 R&D Project: 453101; Other: BnR: KA1501020; TRN: US200621%%826 LBNL; RN06127541; INS-US0605365 2008-02-05 891331 http://www.osti.gov/bridge/servlets/purl/891331-eUSUdu/ R&amp;D Toward a Neutrino Factory and Muon Collider Zisman, Michael S 43 Neutrino Factory, Muon Collider Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (US) Accelerator&amp; Fusion Research Division United States 2009-04-29 English Conference Conference: 2009 Particle Accelerator Conference, Vancouver, BC, Canada, May 4-8, 2009 Medium: ED; Size: 5 OSTI ID: 957044 LBNL-1838E DE-AC02-05CH11231 LBNL 2009-06-18 957044 http://www.osti.gov/bridge/servlets/purl/957044-XFjD9P/ The PEP-II project: Design status and R&D results Zisman, M.S. [Lawrence Berkeley Lab., CA (United States)] 43 PARTICLE ACCELERATORS; PEP STORAGE RINGS; DESIGN; POSITRONS; ELECTRONS; PROPOSALS; GEV RANGE 01-10; B MESONS The PEP-II project, a joint proposal of SLAC, LBL, and LLNL, will involve an upgrade of the PEP storage ring at SLAC to serve as an asymmetric B factory. The upgrade will involve replacing the vacuum and rf systems of PEP, which will serve as the high-energy ring (containing 9 GeV electrons), along with the addition of a new low-energy ring (containing 3.1 GeV positrons) mounted atop the high-energy ring. The present design status of the project and a summary of recent R&D results are presented here. If approved, the PEP-II project is ready to begin construction in October 1993. Lawrence Berkeley Lab., CA (United States); Stanford Linear Accelerator Center, Menlo Park, CA (United States); Lawrence Livermore National Lab., CA (United States) INIS; OSTI as DE94003988; Paper copy available at OSTI: phone, 865-576-8401, or email, reports@adonis.osti.gov USDOE, Washington, DC (United States) United States 1993-07-01 English Conference Technical Report Conference: 5. international symposium on heavy flavor physics,Montreal (Canada),6-10 Jul 1993; Other Information: PBD: Jul 1993 Medium: ED; Size: 8 p. OSTI ID: 10107641; Legacy ID: DE94003988 LBL--34556; CONF-9307143--5 AC03-76SF00098; AC03-76SF00515; W-7405-ENG-48 Other: ON: DE94003988; TRN: TRN: 93:004815 LBNL; SCA: 430400; PA: EDB-94:020877; INS-94:002043; NTS-94:009365; ERA-19:007296; SN: 93001110212; TVI: 11231 2008-02-12 10107641 http://www.osti.gov/bridge/servlets/purl/10107641-vfOIvL/native/ PEP-II asymmetric B Factory: Design update and R&D results Zisman, M.S. [Lawrence Berkeley Lab., CA (United States)]; Bell, R.A.; Dorfan, J.; Schwarz, H. [Stanford Linear Accelerator Center, Menlo Park, CA (United States)]; Barletta, W.A.; Calderon, M. [Lawrence Livermore National Lab., CA (United States)] 43 PARTICLE ACCELERATORS; PEP STORAGE RINGS; DESIGN; B MESONS; MESON FACTORIES; ASYMMETRY; KLYSTRONS; RF SYSTEMS; ALIGNMENT; FEEDBACK; VACUUM SYSTEMS PEP-II, a 9 GeV {times} 3.1 GeV e{sup +}e{sup {minus}} collider with a design luminosity of 3 {times} 10{sup 33} cm{sup {minus}2}{sub s}{sup {minus}1}, was proposed jointly by SLAC, LBL, and LLNL. Recent efforts have continued towards an optimized design. In addition, an aggressive R&D program is under way to validate our design choices. Fabrication of a low-power prototype RF cavity is complete, and impedance measurements are beginning. A 500-kW, 476-MHz klystron has been completed; it will be used for testing both high-power RF windows and a prototype high-power cavity (now under design in collaboration with Chalk River Laboratory). Vacuum studies have demonstrated that chambers with suitable photodesorption properties can be fabricated. A mockup of the two-ring arc area has been completed and used to investigate alignment and stability issues. The PEP-II project is ready to begin construction as soon as funds become available. Lawrence Berkeley Lab., CA (United States) OSTI; NTIS; INIS; GPO Dep. USDOE, Washington, DC (United States) United States 1992-07-01 English Conference Technical Report Conference: International conference on high energy accelerators,Hamburg (Germany),20-24 Jul 1992; Other Information: PBD: Jul 1992 Medium: ED; Size: 3 p. OSTI ID: 10114148; Legacy ID: DE93004772 LBL--32559; ESG--206; SLAC-PUB--5852; ABC--76; UCRL-JC--111380; CONF-920706--46 AC03-76SF00098; AC03-76SF00515; W-7405-ENG-48 Other: ON: DE93004772 LBNL; SCA: 430400; SN: 92000896267 2008-06-19 10114148 http://www.osti.gov/bridge/servlets/purl/10114148-umaE3c/ Choice of momentum compaction factor for the APIARY low-energy ring Zisman, M.S. (Lawrence Berkeley Lab., CA (USA)) 43 PARTICLE ACCELERATORS; COLLIDING BEAMS; BEAM DYNAMICS; BEAM BUNCHING; BEAM EMITTANCE; INSTABILITY; LINEAR MOMENTUM; STORAGE RINGS; TUNING; BEAMS For the new low-energy ring of the APIARY B factory collider, there are several considerations that go into the choice of momentum compaction factor. In this note we enumerate these considerations and indicate the restrictions on momentum compaction factor that arise therefrom. Probably the most difficult condition to achieve is maintaining the same betatron tune modulation at the IP as occurs for the high-energy ring. Generally, however, we find that the constraints are rather loose, so the ring design is not heavily influenced. 5 refs. Stanford Linear Accelerator Center, Menlo Park, CA (USA) NTIS, PC A03/MF A01; OSTI; INIS; GPO Dep. DOE/ER United States 1990-08-01 English Technical Report Medium: ED; Size: Pages: (13 p) OSTI ID: 6379166; Legacy ID: DE91004371 SLAC-ABC-12 AC03-76SF00515 Other: ON: DE91004371 SLAC; EDB-90-180248; INS-91-000732; ERA-16-001439 2008-02-07 6379166 http://www.osti.gov/bridge/servlets/purl/6379166-wiYxNv/ PEP-II asymmetric B Factory: Design update and R D results Zisman, M.S. (Lawrence Berkeley Lab., CA (United States)); Bell, R.A.; Dorfan, J.; Schwarz, H. (Stanford Linear Accelerator Center, Menlo Park, CA (United States)); Barletta, W.A.; Calderon, M. (Lawrence Livermore National Lab., CA (United States)) 43 PARTICLE ACCELERATORS; B MESONS; MESON FACTORIES; PEP STORAGE RINGS; DESIGN; ALIGNMENT; ASYMMETRY; FEEDBACK; KLYSTRONS; RF SYSTEMS; VACUUM SYSTEMS; ACCELERATORS; BEAUTY PARTICLES; BOSONS; ELECTRON TUBES; ELECTRONIC EQUIPMENT; ELEMENTARY PARTICLES; EQUIPMENT; HADRONS; MESONS; MICROWAVE EQUIPMENT; MICROWAVE TUBES; PSEUDOSCALAR MESONS; STORAGE RINGS PEP-II, a 9 GeV [times] 3.1 GeV e[sup +]e[sup [minus]] collider with a design luminosity of 3 [times] 10[sup 33] cm[sup [minus]2][sub s][sup [minus]1], was proposed jointly by SLAC, LBL, and LLNL. Recent efforts have continued towards an optimized design. In addition, an aggressive R D program is under way to validate our design choices. Fabrication of a low-power prototype RF cavity is complete, and impedance measurements are beginning. A 500-kW, 476-MHz klystron has been completed; it will be used for testing both high-power RF windows and a prototype high-power cavity (now under design in collaboration with Chalk River Laboratory). Vacuum studies have demonstrated that chambers with suitable photodesorption properties can be fabricated. A mockup of the two-ring arc area has been completed and used to investigate alignment and stability issues. The PEP-II project is ready to begin construction as soon as funds become available. Lawrence Berkeley Lab., CA (United States) OSTI; NTIS; INIS; GPO Dep. DOE; USDOE, Washington, DC (United States) United States 1992-07-01 English Conference Technical Report Conference: International conference on high energy accelerators, Hamburg (Germany), 20-24 Jul 1992 Medium: ED; Size: Pages: (3 p) OSTI ID: 6921542; Legacy ID: DE93004772 LBL-32559; ESG--206; SLAC-PUB--5852; ABC--76; UCRL-JC--111380; CONF-920706--46 AC03-76SF00098; AC03-76SF00515; W-7405-ENG-48 Other: ON: DE93004772 LBNL; EDB-93-015465 2008-06-30 6921542 http://www.osti.gov/bridge/servlets/purl/6921542-kXLTi1/ B factory rf system design issues Zisman, M.S. 43 PARTICLE ACCELERATORS; MESON FACTORIES; RF SYSTEMS; DESIGN; B MESONS; BEAM BUNCHING; INSTABILITY; COLLIDING BEAMS; IMPEDANCE We discuss the issues of relevance to the design of a B factory RF system. First, the general parameter regime is outlined, and the reasons behind certain commonly made choices are indicated. This regime involves high beam currents, and many relatively short bunches. Next, the physics difficulties associated with coupled-bunch instabilities are described briefly. We then describe in general terms the alternative approaches taken by various B factory designers, the motivation for these choices, and the technical issues raised by them. Technical solutions have been proposed for both the room-temperature and the superconducting RF scenarios, and considerable R&D is being carried out worldwide to confirm and optimize these solutions. Lawrence Berkeley Lab., CA (United States) OSTI; NTIS; INIS; GPO Dep. USDOE, Washington, DC (United States) United States 1992-06-01 English Conference Technical Report Other Information: PBD: Jun 1992 Medium: ED; Size: 7 p. OSTI ID: 10180648; Legacy ID: DE92041211 LBL--32446; ESG--195; ABC--72; CONF-9204126--10 AC03-76SF00098 Other: ON: DE92041211 LBNL; SCA: 430303; SN: 92000839956 2008-06-19 10180648 http://www.osti.gov/bridge/servlets/purl/10180648-b8SGxq/ General B factory design considerations Zisman, M.S. 43 PARTICLE ACCELERATORS; B MESONS; MESON FACTORIES; DESIGN; ASYMMETRY; COST; CP INVARIANCE; SYMMETRY BREAKING; BEAM-BEAM INTERACTIONS; BEAM LUMINOSITY; VACUUM SYSTEMS; RF SYSTEMS; BEAM INJECTION; FEEDBACK; ELECTRON-POSITRON INTERACTIONS; COLLIDING BEAMS We describe the general considerations that go into the design of an asymmetric B factory collider. Justification is given for the typical parameters of such a facility, and the physics and technology challenges that arise from these parameter choices are discussed. Cost and schedule issues for a B factory are discussed briefly. A summary of existing proposals is presented, noting their similarities and differences. Lawrence Berkeley Lab., CA (United States) OSTI; NTIS; INIS; GPO Dep. USDOE, Washington, DC (United States) United States 1992-12-01 English Conference Technical Report Conference: Joint US/CERN school on particle accelerators frontiers of particle beams: factories with e{sup +}e{sup {minus}} rings,Benalmadena (Spain),28 Oct - 5 Nov 1992; Other Information: PBD: Dec 1992 Medium: ED; Size: 24 p. OSTI ID: 10133480; Legacy ID: DE93007716 LBL--33411; ESG--243; CONF-9210313--1 AC03-76SF00098 Other: ON: DE93007716 LBNL; SCA: 430100; SN: 93000935117 2008-06-19 10133480 http://www.osti.gov/bridge/servlets/purl/10133480-wuEJfS/ PEP-II design update and R&D results Zisman, M.S. 43 PARTICLE ACCELERATORS; PEP STORAGE RINGS; DESIGN; B MESONS; MESON FACTORIES; ASYMMETRY; FEEDBACK; BEAM INJECTION; RF SYSTEMS We describe the present status of the PEP-II asymmetric {beta} factory design undertaken by SLAC, LBL, and LLNL. Design optimization during the past year and changes from the original CDR design are described. R&D activities have focused primarily on the key technology areas of vacuum, RF, and feedback system design. Recent progress in these areas is described. The R&D results have verified our design assumptions and provide further confidence in the design of PEP-II. Lawrence Berkeley Lab., CA (United States) OSTI; NTIS; INIS; GPO Dep. USDOE, Washington, DC (United States) United States 1993-01-01 English Conference Technical Report Conference: International workshop on B factories: accelerators and experiments,Tsukuba (Japan),17-20 Nov 1992; Other Information: PBD: Jan 1993 Medium: ED; Size: 5 p. OSTI ID: 10144454; Legacy ID: DE93010412 LBL--33417; ESG--244; CONF-9211172--5 AC03-76SF00098; AC03-76SF00515; W-7405-ENG-48 Other: ON: DE93010412; IN: PEP-II-AP2-93 LBNL; SCA: 430400; SN: 93000960824 2008-06-19 10144454 http://www.osti.gov/bridge/servlets/purl/10144454-IRTfvY/ Influence of collective effects on the performance of high-luminosity colliders Zisman, M.S. 43 PARTICLE ACCELERATORS; COLLIDING BEAMS; BEAM DYNAMICS; ACCELERATORS; B MESONS; BEAM BUNCHING; BEAM EMITTANCE; DESIGN; ELECTRIC IMPEDANCE; ELECTRON-POSITRON INTERACTIONS; INSTABILITY; PERFORMANCE; SCATTERING; BEAMS; BOSONS; ELEMENTARY PARTICLES; HADRONS; IMPEDANCE; INTERACTIONS; LEPTON-LEPTON INTERACTIONS; MESONS; PARTICLE INTERACTIONS; PSEUDOSCALAR MESONS The design of a high-luminosity electron-positron collider to study B physics is a challenging task from many points of view. In this paper we consider the influence of collective effects on the machine performance; most of our findings are generic,'' in the sense that they depend rather weakly on the details of the machine design. Both single-bunch and coupled-bunch instabilities are described and their effects are estimated based upon an example machine design (APIARY-IV). In addition, we examine the possibility of emittance growth from intrabeam scattering and calculate the beam lifetime from both Touschek and gas scattering. We find that the single-bunch instabilities should not lead to difficulty, and that the emittance growth is essentially negligible. At a background gas pressure of 10 nTorr, beam lifetimes of only a few hours are expected. Multibunch growth rates are very severe, even when using an optimized RF system consisting of single-cell, room-temperature RF cavities with geometrical shapes typical of superconducting cavities. Thus, a powerful feedback system will be required. In terms of collective effects, it does not appear Lawrence Berkeley Lab., CA (USA) NTIS, PC A04/MF A01; OSTI; INIS; GPO Dep. DOE/ER United States 1990-04-01 English Conference Technical Report Conference: Workshop on beam dynamics issues of high luminosity asymmetric collider rings, Berkeley, CA (USA), 12-16 Feb 1990 Medium: ED; Size: Pages: (49 p) OSTI ID: 6515698; Legacy ID: DE91001797 LBL-28820; CONF-9002128--3 AC03-76SF00098 Other: ON: DE91001797 LBNL; EDB-90-173351; NTS-91-003375; INS-91-000729; ERA-16-001436 2008-02-08 6515698 http://www.osti.gov/bridge/servlets/purl/6515698-2D0pqp/ PEP-II design update and R D results Zisman, M.S. 43 PARTICLE ACCELERATORS; B MESONS; MESON FACTORIES; PEP STORAGE RINGS; DESIGN; ASYMMETRY; BEAM INJECTION; FEEDBACK; RF SYSTEMS; ACCELERATORS; BEAUTY PARTICLES; BOSONS; ELEMENTARY PARTICLES; HADRONS; MESONS; PSEUDOSCALAR MESONS; STORAGE RINGS We describe the present status of the PEP-II asymmetric [beta] factory design undertaken by SLAC, LBL, and LLNL. Design optimization during the past year and changes from the original CDR design are described. R D activities have focused primarily on the key technology areas of vacuum, RF, and feedback system design. Recent progress in these areas is described. The R D results have verified our design assumptions and provide further confidence in the design of PEP-II. Lawrence Berkeley Lab., CA (United States) OSTI; NTIS; INIS; GPO Dep. DOE; USDOE, Washington, DC (United States) United States 1993-01-01 English Conference Technical Report Conference: International workshop on B factories: accelerators and experiments, Tsukuba (Japan), 17-20 Nov 1992 Medium: ED; Size: Pages: (5 p) OSTI ID: 6621640; Legacy ID: DE93010412 LBL-33417; ESG--244; CONF-9211172--5 AC03-76SF00098; AC03-76SF00515; W-7405-ENG-48 Other: ON: DE93010412 LBNL; EDB-93-065449 2008-06-30 6621640 http://www.osti.gov/bridge/servlets/purl/6621640-m49SLu/ General B factory design considerations Zisman, M.S. 43 PARTICLE ACCELERATORS; B MESONS; MESON FACTORIES; DESIGN; ASYMMETRY; BEAM INJECTION; BEAM LUMINOSITY; BEAM-BEAM INTERACTIONS; COLLIDING BEAMS; COST; CP INVARIANCE; ELECTRON-POSITRON INTERACTIONS; FEEDBACK; RF SYSTEMS; SYMMETRY BREAKING; VACUUM SYSTEMS; ACCELERATORS; BEAM DYNAMICS; BEAMS; BEAUTY PARTICLES; BOSONS; ELEMENTARY PARTICLES; HADRONS; INTERACTIONS; INVARIANCE PRINCIPLES; LEPTON-LEPTON INTERACTIONS; MESONS; PARTICLE INTERACTIONS; PSEUDOSCALAR MESONS We describe the general considerations that go into the design of an asymmetric B factory collider. Justification is given for the typical parameters of such a facility, and the physics and technology challenges that arise from these parameter choices are discussed. Cost and schedule issues for a B factory are discussed briefly. A summary of existing proposals is presented, noting their similarities and differences. Lawrence Berkeley Lab., CA (United States) OSTI; NTIS; INIS; GPO Dep. DOE; USDOE, Washington, DC (United States) United States 1992-12-01 English Conference Technical Report Conference: Joint US/CERN school on factories with e[sup +]e[sup [minus]] rings, Benalmadena (Spain), 28 Oct - 5 Nov 1992 Medium: ED; Size: Pages: (24 p) OSTI ID: 6714688; Legacy ID: DE93007716 LBL-33411; ESG--243; CONF-9210313--1 AC03-76SF00098 Other: ON: DE93007716 LBNL; EDB-93-048358 2008-06-30 6714688 http://www.osti.gov/bridge/servlets/purl/6714688-kk19nW/ Neutrino Factory and Muon Collider Collaboration R and D Program Zisman, M.S. 43 PARTICLE ACCELERATORS; DESIGN; MUONS; NEUTRINOS; STORAGE RINGS; PARTICLE PRODUCTION; COORDINATED RESEARCH PROGRAMS MUONS NEUTRINO FACTORY R & D The Neutrino Factory and Muon Collider Collaboration (MC) comprises some 140 scientists and engineers located at U.S. National Laboratories and Universities, and at a number of non-U.S. research institutions. In the past year, the MC R and D program has shifted its focus mainly toward the design issues related to the development of a Neutrino Factory based on a muon storage ring. In this paper the status of the various R and D activities is described, and future plans are outlined. Lawrence Berkeley National Lab., CA (US) INIS; OSTI as DE00776735 USDOE Director, Office of Science. Office of High Energy and Nuclear Physics. Division of High Energy Physics (US) United States 2000-07-01 English Conference Conference: NUFACT'00, Monterey, CA (US), 05/22/2000--05/26/2000; Other Information: PBD: 1 Jul 2000 Medium: ED; Size: vp. OSTI ID: 776735 LBNL--46573 AC03-76SF00098 R&D Project: Z3MCMA; TRN: AH200114%%27 LBNL; EDB-01:031909; INS-US0101492 2008-02-05 776735 http://www.osti.gov/bridge/servlets/purl/776735-2VN9eK/webviewable/ Status of neutrino factory and muon collider R and D Zisman, M.S. 43 PARTICLE ACCELERATORS; BEAM EMITTANCE; COLLIDING BEAMS; DAUGHTER PRODUCTS; MUON BEAMS; NEUTRINO BEAMS; PROTON BEAMS; STORAGE RINGS; PARTICLE PRODUCTION; RESEARCH PROGRAMS NEUTRINO FACTORY MUON A significant worldwide R and D effort is presently directed toward solving the technical challenges of producing, cooling, accelerating, storing, and eventually colliding beams of muons. Its primary thrust is toward issues critical to a Neutrino Factory, for which R and D efforts are under way in the U.S., via the Neutrino Factory and Muon Collider Collaboration (MC); in Europe, centered at CERN; and in Japan, at KEK. Under study and experimental development are production targets handling intense proton beams (1-4 MW), phase rotation systems to reduce beam energy spread, cooling channels to reduce transverse beam emittance for the acceleration system, and storage rings where muon decays in a long straight section provide a neutrino beam for a long-baseline (3000 km) experiment. Critical experimental activities include development of very high gradient normal conducting RF (NCRF) and superconducting RF (SCRF) cavities, high-power liquid-hydrogen absorbers, and high-field superconducting solenoids. Components and instrumentation that tolerate the intense decay products of the muon beam are being developed for testing. For a high-luminosity collider, muons must be cooled longitudinally as well as transversely, requiring an emittance exchange scheme. In addition to the experimental R and D effort, sophisticated theoretical and simulation tools are needed for the design. Here, the goals, present status, and future R and D plans in these areas will be described. Lawrence Berkeley National Lab., CA (US) INIS; OSTI as DE00783484 USDOE Director, Office of Science. Office of High Energy and Nuclear Physics. Division of High Energy Physics (US) United States 2001-06-17 English Conference Conference: Particle Accelerator Conference-2001, Chicago, IL (US), 06/18/2001--06/22/2001; Other Information: PBD: 17 Jun 2001 Medium: ED; Size: vp. OSTI ID: 783484 LBNL--47302 AC03-76SF00098 R&D Project: Z3MCMA; TRN: AH200128%%47 LBNL; EDB-01:070265; INS-US0104005 2008-02-05 783484 http://www.osti.gov/bridge/servlets/purl/783484-68antg/webviewable/ Luminosity Lifetime Zisman, M.S. 43; BEAM CURRENTS; BHABHA SCATTERING; ELECTRONS; LIFETIME; LUMINOSITY; POSITRONS; TIME DEPENDENCE In a symmetric or 'energy transparent' relativistic collider, the luminosity is given by L = N{sup 2}f{sub c}/4{pi}{sigma}*{sub x}{sigma}*{sub y} where N is the number of electrons or positrons per bunch, {sigma}*{sub x} ({sigma}*{sub y}) is the horizontal (vertical) rms beam size at the interaction point (IP), and f{sub c} is the collision frequency. If the beam sizes remain constant as the luminosity decreases, then the time dependence of luminosity is contained entirely in the time dependence of the beam currents, i.e., N O N(t), and we can rewrite the equation as L(t) = N{sup 2}(t)f{sub c}/4{pi}{sigma}*{sub x}{sigma}*{sub y}. There are two distinct categories for luminosity loss. In the first category are loss processes due to collisions between the two beams, that is, processes associated directly with the luminosity. In the second category (see below) are single-beam loss processes. The processes in the first category relevant to a high-energy collider are Bhabha scattering (e{sup +}e{sup -} O e{sup +}e{sup -}) and 'radiative' Bhabha scattering (e{sup +}e{sup -} O e{sup +}e{sup -}{gamma}). In the first process, a beam particle is lost if its angular deflection is beyond the ring's transverse acceptance; in the second process, loss occurs if the beam particle's momentum change is outside the longitudinal acceptance of the ring (typically determined by the RF bucket height). Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (US) Accelerator&amp; Fusion Research Division United States 1997-04-01 English Technical Report Medium: ED OSTI ID: 941721 LBNL-40177 DE-AC02-05CH11231 TRN: US200902%%68 LBNL; RN09003723 2009-02-02 941721 http://www.osti.gov/bridge/servlets/purl/941721-ngnRc3/ B factory rf system design issues Zisman, M.S. 43 PARTICLE ACCELERATORS; MESON FACTORIES; RF SYSTEMS; DESIGN; B MESONS; BEAM BUNCHING; COLLIDING BEAMS; IMPEDANCE; INSTABILITY; ACCELERATORS; BEAM DYNAMICS; BEAMS; BEAUTY PARTICLES; BOSONS; ELEMENTARY PARTICLES; HADRONS; MESONS; PSEUDOSCALAR MESONS We discuss the issues of relevance to the design of a B factory RF system. First, the general parameter regime is outlined, and the reasons behind certain commonly made choices are indicated. This regime involves high beam currents, and many relatively short bunches. Next, the physics difficulties associated with coupled-bunch instabilities are described briefly. We then describe in general terms the alternative approaches taken by various B factory designers, the motivation for these choices, and the technical issues raised by them. Technical solutions have been proposed for both the room-temperature and the superconducting RF scenarios, and considerable R D is being carried out worldwide to confirm and optimize these solutions. Lawrence Berkeley Lab., CA (United States) OSTI; NTIS; INIS; GPO Dep. DOE; USDOE, Washington, DC (United States) United States 1992-06-01 English Conference Technical Report Conference: B factories: state of the art in accelerators, detectors, and physics, Stanford, CA (United States), 6-10 Apr 1992 Medium: ED; Size: Pages: (7 p) OSTI ID: 7129827; Legacy ID: DE92041211 LBL-32446; ESG--195; ABC--72; CONF-9204126--10 AC03-76SF00098 Other: ON: DE92041211 LBNL; EDB-92-167499 2008-06-30 7129827 http://www.osti.gov/bridge/servlets/purl/7129827-VjvYS3/ B-Factory Contributions to the 1991 Particle Accelerator Conference Zisman, M. 43 PARTICLE ACCELERATORS; PARTICLE PRODUCTION; B MESONS; STORAGE RINGS; ACCELERATORS No abstract prepared. Stanford Linear Accelerator Center (SLAC), Menlo Park, CA SC United States 2005-04-06 English Technical Report Topical Medium: ED OSTI ID: 839835 SLAC-R-751 AC02-76SF00515 TRN: US200516%%284 SLAC; RN05096615; INS-US0503274 2008-02-05 839835 http://www.osti.gov/bridge/servlets/purl/839835-VzT275/native/ PEP-II Asymmetric B Factory: Designs Update and R& D Results Zisman, M 43 PARTICLE ACCELERATORS; ALIGNMENT; CHALK RIVER; CONSTRUCTION; DESIGN; FABRICATION; IMPEDANCE; KLYSTRONS; LAWRENCE BERKELEY LABORATORY; LAWRENCE LIVERMORE NATIONAL LABORATORY; LUMINOSITY; STABILITY; STANFORD LINEAR ACCELERATOR CENTER; TESTING; WINDOWS PEP-II, a 9 GeV x 3.1 GeV e{sup +}e{sup -} collider with a design luminosity of 3 x 10{sup 33} cm{sup -2}s{sup -1}, was proposed jointly by SLAC, LBL, and LLNL. Recent efforts have continued towards an optimized design. In addition, an aggressive R&amp;D program is under way to validate our design choices. Fabrication of a low-power prototype RF cavity is complete, and impedance measurements are beginning. A 500-kW, 476-MHz klystron has been completed; it will be used for testing both high-power RF windows and a prototype high-power cavity (now under design in collaboration with Chalk River Laboratory). Vacuum studies have demonstrated that chambers with suitable photodesorption properties can be fabricated. A mock-up of the two-ring arc area has been completed and used to investigate alignment and stability issues. The PEP-II project is ready to begin construction as soon as funds become available. Stanford Linear Accelerator Center, Menlo Park, CA (US) USDOE Office of Science (US) United States 2004-07-22 English Technical Report Other Information: PBD: 22 Jul 2004 Topical Medium: ED; Size: 4 pages OSTI ID: 833127 SLAC-PUB-5852 AC03-76SF00515 TRN: US200430%%1180 SLAC; RN04119898; INS-US0406578 2008-02-05 833127 http://www.osti.gov/bridge/servlets/purl/833127-7V4ZKi/native/ An on-line trigger processor for large transverse energy events Zioulas, G.; Arenton, M.; Chen, T.Y.; Conetti, S.; Cox, B.; Delchamps, S.; Etemadi, B.; Fortney, L.; Guffey, K.; Haire, M. 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; TRIGGER CIRCUITS; DESIGN; MEASURING INSTRUMENTS; MONITORING; PERFORMANCE; SHOWER COUNTERS; TRANSVERSE ENERGY; TRANSVERSE MOMENTUM; ELECTRONIC CIRCUITS; ENERGY; KINETIC ENERGY; LINEAR MOMENTUM; PULSE CIRCUITS; RADIATION DETECTORS A trigger processor for the selection of events in which photons of large transverse momentum are detected by a lead and scintillating glass calorimeter was designed, constructed, and operated at interaction rates ranging from 2 kHz to 2 MHz. The system achieved suppressions of the raw interaction rate of as much as 1 x 10 V. Raw distributions of tranverse momenta and direct photon event sensitivities are presented from data taken with 300 GeV/c pion and proton beams on a lithium target. 7 refs., 6 figs., 1 tab. Fermi National Accelerator Lab., Batavia, IL (USA) NTIS, PC A02/MF A01 - OSTI; 1. Not Available United States 1988-12-01 English Conference Technical Report Conference: IEEE nuclear science symposium, Orlando, FL, USA, 9 Nov 1988; Other Information: Portions of this document are illegible in microfiche products Medium: ED; Size: Pages: 6 OSTI ID: 6520546; Legacy ID: DE89005624 FNAL/C-88/185-E; CONF-881103-26 AC02-76CH03000 Other: ON: DE89005624 FNAL; INS-89-003575; ERA-14-013425; EDB-89-027347 2009-04-02 6520546 http://www.osti.gov/bridge/servlets/purl/6520546-Py7P2h/ Low-level RF control system issues for an ADTT accelerator Ziomek, C.D.; Regan, A.H.; Lynch, M.T.; Bowling, P.S. 43 PARTICLE ACCELERATORS; ACCELERATORS; RF SYSTEMS; CONTROL SYSTEMS; DESIGN; ELECTROMAGNETIC FIELDS; PERFORMANCE; COMPUTERIZED SIMULATION; ELECTRONIC EQUIPMENT; USES The RF control system for a charged-particle accelerator must maintain the correct amplitude and phase of RF field inside the accelerator cavity in the presence of perturbations, noises, and time varying system components. For an accelerator with heavy beam-loading, fluctuations in the beam current cause large perturbations to the RF field amplitude and phase that must be corrected by the RF control system. The ADTT applications require a high-current, heavily beam-loaded, continuous-wave (CW) accelerator. Additional concerns created by the CW operation include system start-up, beam interruption, and fault recovery. Also, the RF control system for an ADTT facility must include sophisticated automation to reduce the operator interaction and support. This paper describes an RF control system design that addresses these various issues by evaluation a combination of feedback and feed forward control techniques. Experience from the high-current Ground Test Accelerator (GTA) is drawn upon for this RF control system design. Comprehensive computer modeling with the Matrix{sub x} software has been used to predict the performance of this RF control system. Los Alamos National Lab., NM (United States) INIS; OSTI as DE94018260; Paper copy available at OSTI: phone, 865-576-8401, or email, reports@adonis.osti.gov USDOE, Washington, DC (United States) United States 1994-09-01 English Conference Technical Report Conference: International conference on accelerator-driven transmutation technologies and applications,Las Vegas, NV (United States),25 Jul - 1 Aug 1994; Other Information: PBD: [1994] Medium: ED; Size: 8 p. OSTI ID: 10180048; Legacy ID: DE94018260 LA-UR--94-2743; CONF-9407103--25 W-7405-ENG-36 Other: ON: DE94018260; TRN: TRN: AHC29421%%159 LANL; SCA: 430300; PA: EDB-94:138680; NTS-95:001724; INS-94:018862; ERA-19:034072; SN: 94001231313; TVI: 9421 2008-02-12 10180048 http://www.osti.gov/bridge/servlets/purl/10180048-LhUlf8/native/ Results of adaptive feedforward on GTA Ziomek, C.D.; Denney, P.M.; Regan, A.H.; Lynch, M.T.; Jachim, S.P.; Eaton, L.E.; Natter, E.F. 43 PARTICLE ACCELERATORS; ACCELERATORS; CONTROL SYSTEMS; ERRORS; FEEDBACK; RF SYSTEMS This paper presents the results of the adaptive feedforward system in use on the Ground Test Accelerator (GTA). The adaptive feedforward system was shown to correct repetitive, high-frequency errors in the amplitude and phase of the RF field of the pulsed accelerator. The adaptive feedforward system was designed as an augmentation to the RF field feedback control system and was able to extend the closed-loop bandwidth and disturbance rejection by a factor of ten. Within a second implementation, the adaptive feedforward hardware was implemented in place of the feedback control system and was shown to negate both beam transients and phase droop in the klystron amplifier. Los Alamos National Lab., NM (United States) OSTI; NTIS; GPO Dep. DOD; Department of Defense, Washington, DC (United States) United States 1993-01-01 English Conference Technical Report Conference: International particle accelerator conference, Washington, DC (United States), 17-20 May 1993 Medium: ED; Size: Pages: (4 p) OSTI ID: 6393462; Legacy ID: DE93014475 LA-UR-93-1871; CONF-930511--93 W-7405-ENG-36 Other: ON: DE93014475 LANL; EDB-93-085276 2009-04-02 6393462 http://www.osti.gov/bridge/servlets/purl/6393462-6v4COU/ Results of adaptive feedforward on GTA Ziomek, C.D.; Denney, P.M.; Regan, A.H.; Lynch, M.T.; Jachim, S.P.; Eaton, L.E.; Natter, E.F. 43 PARTICLE ACCELERATORS; ACCELERATORS; CONTROL SYSTEMS; FEEDBACK; ERRORS; RF SYSTEMS This paper presents the results of the adaptive feedforward system in use on the Ground Test Accelerator (GTA). The adaptive feedforward system was shown to correct repetitive, high-frequency errors in the amplitude and phase of the RF field of the pulsed accelerator. The adaptive feedforward system was designed as an augmentation to the RF field feedback control system and was able to extend the closed-loop bandwidth and disturbance rejection by a factor of ten. Within a second implementation, the adaptive feedforward hardware was implemented in place of the feedback control system and was shown to negate both beam transients and phase droop in the klystron amplifier. Los Alamos National Lab., NM (United States) OSTI; NTIS; GPO Dep. Department of Defense, Washington, DC (United States) United States 1993-06-01 English Conference Technical Report Conference: PAC `93: international particle accelerator conference,Washington, DC (United States),17-20 May 1993; Other Information: PBD: [1993] Medium: ED; Size: 4 p. OSTI ID: 10160537; Legacy ID: DE93014475 LA-UR--93-1871; CONF-930511--93 W-7405-ENG-36 Other: ON: DE93014475 LANL; SCA: 430303; SN: 93000988201 2009-04-02 10160537 http://www.osti.gov/bridge/servlets/purl/10160537-ohdxK3/ Low-level RF control for the AFEL Ziomek, C.; Kinross-Wright, J.; Plato, J. 43 PARTICLE ACCELERATORS; 42 ENGINEERING; FREE ELECTRON LASERS; PERFORMANCE; RF SYSTEMS; CONTROL SYSTEMS; DESIGN; ACCELERATORS; ELECTRON BEAMS; ELECTROMAGNETIC FIELDS; PHASE STABILITY; BEAM CURRENTS; KLYSTRONS A limiting factor in the performance of the Los Alamos Advanced Free Electron Laser (AFEL) is the stability of the RF accelerating field. A high-performance low-level RF control system has been implemented that uses analog feedback and digital feed forward to regulate the RF field. This low-level RF control system has achieved long-term amplitude and phase stabilities better than {+-}0.25% and {+-}0.33{degree} respectively. In order to improve the RF field stability further, a detailed system analysis and design is proceeding. Subsystem measurements are being used to model the system performance, predict the performance-limiting components, and determine possible improvements. Results to-date, modeling analyses, and suggested future improvements are presented. Los Alamos National Lab., NM (United States) INIS; OSTI as DE94018295; Paper copy available at OSTI: phone, 865-576-8401, or email, reports@adonis.osti.gov USDOE, Washington, DC (United States) United States 1994-09-01 English Conference Technical Report Conference: 16. international free electron laser conference,Stanford, CA (United States),21-26 Aug 1994; Other Information: PBD: [1994] Medium: ED; Size: 5 p. OSTI ID: 10182169; Legacy ID: DE94018295 LA-UR--94-2840; CONF-9408146--2 W-7405-ENG-36 Other: ON: DE94018295; TRN: TRN: AHC29421%%146 LANL; SCA: 430300; 426002; PA: EDB-94:138705; NTS-95:001714; INS-94:018874; ERA-19:034082; SN: 94001231348; TVI: 9421 2008-02-12 10182169 http://www.osti.gov/bridge/servlets/purl/10182169-OuRsOl/native/ Influence of irradiation spectrum and implanted ions on the amorphization of ceramics Zinkle, S.J.; Snead, L.L. 36 MATERIALS SCIENCE; SPINELS; PHYSICAL RADIATION EFFECTS; ALUMINIUM OXIDES; MAGNESIUM OXIDES; SILICON NITRIDES; SILICON CARBIDES; ALUMINATES; MAGNESIUM COMPOUNDS; ION BEAMS; ALUMINIUM IONS; IRON IONS; MEV RANGE 01-10; HELIUM IONS Polycrystalline Al2O3, magnesium aluminate spinel (MgAl2O4), MgO, Si3N4, and SiC were irradiated with various ions at 200-450 K, and microstructures were examined following irradiation using cross-section TEM. Amorphization was not observed in any of the irradiated oxide ceramics, despsite damage energy densities up to {similar_to}7 keV/atom (70 displacements per atom). On the other hand, SiC readily amorphized after damage levels of {similar_to}0.4 dpa at room temperature (RT). Si3N4 exhibited intermediate behavior; irradiation with Fe{sup 2+} ions at RT produced amorphization in the implanted ion region after damage levels of {similar_to}1 dpa. However, irradiated regions outside the implanted ion region did not amorphize even after damage levels > 5 dpa. The amorphous layer in the Fe-implanted region of Si3N4 did not appear if the specimen was simultaneoulsy irradiated with 1-MeV He{sup +} ions at RT. By comparison with published results, it is concluded that the implantation of certain chemical species has a pronounced effect on the amorphization threshold dose of all five materials. Intense ionizing radiation inhibits amorphization in Si3N4, but does not appear to significantly influence the amorphization of SiC. Oak Ridge National Lab., TN (United States) INIS; OSTI as DE96008694 USDOE, Washington, DC (United States) United States 1995-12-31 English Conference Conference: 8. international conference on radiation effects in insulators, Catania (Italy), 11-15 Sep 1995; Other Information: PBD: [1995] Medium: ED; Size: 24 p. OSTI ID: 217727; Legacy ID: DE96008694 CONF-950922--1 AC05-96OR22464 Other: ON: DE96008694 ORNL; SCA: 360206; 360605; PA: EDB-96:073093; INS-96:010708; NTS-96:013907; SN: 96001573779 2009-11-06 217727 http://www.osti.gov/bridge/servlets/purl/217727-cS5K5G/webviewable/ Proceedings of the ninth IEA workshop on radiation effects in ceramic insulators Zinkle, S.J.; Burn, G.L. [comps.]; Hodgson, E.R.; Shikama, T. 36 MATERIALS SCIENCE ;70 PLASMA PHYSICS AND FUSION; CERAMICS; ELECTRICAL INSULATORS; PHYSICAL RADIATION EFFECTS; MEETINGS; THERMONUCLEAR REACTOR MATERIALS Several IEA workshops have been held over the past few years to discuss the growing number of experimental studies on the intriguing phenomenon of radiation induced electrical degradation (RIED). In the past year, several new RIED irradiation experiments have been performed which have a significant impact on the understanding of the RIED phenomenon. These experiments include a HFIR neutron irradiation experiment on 12 different grades of single- and poly-crystal alumina (450 C, {approximately}3 dpa, 200 V/mm) and several additional neutron, electron and light ion irradiation experiments. The primary objective of the IEA workshop was to review the available RIED studies on ceramic insulators. Some discussion of recent work in other areas such as loss tangent measurements, mechanical strength, etc. occurred on the final afternoon of the workshop. The IEA workshop was held in conjunction with a US-Japan JUPITER program experimenter`s workshop on dynamic radiation effects in ceramic insulators. Oak Ridge National Lab., TN (United States) INIS; OSTI as DE98007501 USDOE Office of Energy Research, Washington, DC (United States) United States 1997-12-31 English Conference Conference: 9. IEA workshop on radiation effects in ceramic insulators, Cincinnati, OH (United States), 8-9 May 1997; Other Information: PBD: [1997] Medium: ED; Size: 277 p. OSTI ID: 291132; Legacy ID: DE98007501 ORNL/M--6068; CONF-9705290--PROC. AC05-96OR22464 Other: ON: DE98007501; TRN: TRN: AHC29901%%338 ORNL; SCA: 360206; 700480; PA: EDB-99:006263; INS-99:002352; SN: 98002027582; TVI: 99R01 2009-11-09 291132 http://www.osti.gov/bridge/servlets/purl/291132-E73o7w/webviewable/ Effect of irradiation spectrum on the microstructure of ion-irradiated Al{sub 2}O{sub 3} Zinkle, S.J. [Oak Ridge National Lab., TN (United States). Metals and Ceramics Div.] 36 MATERIALS SCIENCE; ALUMINIUM OXIDES; PHYSICAL RADIATION EFFECTS; EXPERIMENTAL DATA; CARBON IONS; IRON IONS; CRYSTAL DEFECTS; HYDROGEN IONS 1 PLUS Polycrystalline samples of alpha-alumina have been irradiated with various ions ranging from 3.6 MeV Fe{sup +} to 1 MeV H{sup +} ions at 650 C. Cross-section transmission electron microscopy was used to investigate the depth-dependent microstructure of the irradiated specimens. The microstructure following irradiation was observed to be dependent on the irradiation spectrum. In particular, defect cluster nucleation was effectively suppressed in specimens irradiated with light ions such as 1 MeV H{sup +} ions. On the other hand, light ion irradiation tended to accelerate the growth rate of dislocation loops. The microstructural observations are discussed in terms of ionization enhanced diffusion processes. Oak Ridge National Lab., TN (United States) INIS; OSTI as DE95010225 USDOE, Washington, DC (United States) United States 1994-12-31 English Technical Report Conference: Fall meeting of the Materials Research Society (MRS), Boston, MA (United States), 28 Nov - 9 Dec 1994; Other Information: PBD: [1994] Medium: ED; Size: 6 p. OSTI ID: 52841; Legacy ID: DE95010225 CONF-941144--126 AC05-84OR21400 Other: ON: DE95010225; TRN: TRN: AHC29515%%112 ORNL; SCA: 360206; PA: EDB-95:084508; INS-95:011852; NTS-95:017175; ERA-20:018803; SN: 95001372153; TVI: 95R15 2008-02-04 52841 http://www.osti.gov/bridge/servlets/purl/52841-qNkC0l/ Anisotropic dislocation loop nucleation in ion-irradiated MgAl sub 2 O sub 4 Zinkle, S.J. 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 36 MATERIALS SCIENCE; ALUMINIUM OXIDES; ION IMPLANTATION; PHYSICAL RADIATION EFFECTS; MAGNESIUM COMPOUNDS; THERMONUCLEAR REACTOR MATERIALS; CERAMICS; CROSS SECTIONS; DISLOCATIONS; MICROSTRUCTURE; NUCLEATION; TRANSMISSION ELECTRON MICROSCOPY; ALKALINE EARTH METAL COMPOUNDS; ALUMINIUM COMPOUNDS; CHALCOGENIDES; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; ELECTRON MICROSCOPY; LINE DEFECTS; MATERIALS; MICROSCOPY; OXIDES; OXYGEN COMPOUNDS; RADIATION EFFECTS Polycrystalline disks of stoichiometric magnesium aluminate spinel (MgAl{sub 2}O{sub 4}) were irradiated with 2 MeV Al{sup +} ions at 650{degrees}C and subsequently analyzed in cross-section using transmission electron microscopy (TEM). Interstitial dislocation loops were observed on 110 and 11 habit planes. The population of loops on both sets of habit planes was strongly dependent on their orientation with respect to the ion beam direction. The density of loops with habit plane normals nearly perpendicular to the ion beam direction much higher than loops with habit plane normals nearly parallel to the ion beam direction. On the other hand, the loop size was nearly independent of habit plane orientation. This anisotropic loop nucleation does not occur in ion-irradiated metals such as copper. An additional anomaly associated with ion-irradiated spinel is that the loops on 111 planes were partially unfaulted with a Burgers vector of b = a/4<110>. Previous neutron irradiation studies have never reported unfaulted loops in stoichiometric spinel. Possible cause of the unusual response of spinel to ion irradiation are discussed. 12 refs., 14 figs. Oak Ridge National Lab., TN (United States) OSTI; NTIS; INIS; GPO Dep. DOE; USDOE, Washington, DC (United States) United States 1991-01-01 English Conference Technical Report Conference: International conference on fusion reactor materials, Clearwater, FL (United States), 17-22 Nov 1991 Medium: ED; Size: Pages: (15 p) OSTI ID: 5147593; Legacy ID: DE92001681 CONF-911111-2 AC05-84OR21400 Other: ON: DE92001681 EDB-91-149990 2008-02-06 5147593 http://www.osti.gov/bridge/servlets/purl/5147593-5kYKx0/ Current status of ATLAS and proposed expansion to an Exotic Beam Facility Zinkann, G.P.; Billquist, J.; Bogaty, J. [and others] 43 PARTICLE ACCELERATORS; ATLAS SUPERCONDUCTING LINAC; CONFIGURATION; DESIGN; ECR ION SOURCES; TANDEM ELECTROSTATIC ACCELERATORS; BEAM INJECTION; COOLING SYSTEMS; CRYOGENICS; ION BEAMS; PROTON BEAMS; HELIUM 3 BEAMS; TARGETS The Argonne Tandem Linear Accelerator System (ATLAS) has been operating on a twenty-four hour, seven days a week schedule since the beginning of Fiscal Year 1994. Twenty-six different ion species ran during this period in 71 separate experiments. During the past year, there have been many projects undertaken to improve operation efficiency and upgrade various accelerator systems. There is also a new ECR ion source construction project underway. This paper covers, linac operation and new tuning techniques, the second generation ECR source construction project, the refrigerator system upgrade, an upgrade to the control system. Also described is a future expansion of ATLAS as an Exotic Beam Facility. ATLAS is a world class heavy ion accelerator with an estimated value of approximately $80 million. A concept that would utilize ATLAS as the foundation for a facility to generate and accelerate radioactive beams is briefly discussed. Argonne National Lab., IL (United States) INIS; OSTI as DE96005092 USDOE, Washington, DC (United States) United States 1995-12-31 English Conference Conference: 7. international conference on heavy ion accelerator technology, Canberra (Australia), 18-22 Sep 1995; Other Information: PBD: [1995] Medium: ED; Size: 29 p. OSTI ID: 205136; Legacy ID: DE96005092 ANL/PHY/CP--87836; CONF-9509230--3 W-31109-ENG-38 Other: ON: DE96005092 ANL; SCA: 430100; PA: EDB-96:060763; NTS-96:012146; INS-96:009205; SN: 96001528749 2009-11-06 205136 http://www.osti.gov/bridge/servlets/purl/205136-lKGT0G/webviewable/ Status report on the positive ion injector (PII) for ATLAS at Argonne National Laboratory Zinkann, G.P.; Added, N.; Billquist, P.; Bogaty, J.; Clifft, B.; Markovich, P.; Phillips, D.; Strickhorn, P.; Shepard, K.W. 43 PARTICLE ACCELERATORS; ATLAS SUPERCONDUCTING LINAC; BEAM INJECTION; BEAM BUNCHING; MODIFICATIONS; OPERATION; PROGRESS REPORT; SUPERCONDUCTING MAGNETS; ACCELERATORS; BEAM DYNAMICS; DOCUMENT TYPES; ELECTRICAL EQUIPMENT; ELECTROMAGNETS; EQUIPMENT; HEAVY ION ACCELERATORS; LINEAR ACCELERATORS; MAGNETS; SUPERCONDUCTING DEVICES The Positive Ion Injector (PII) is part of the Uranuim upgrade for ATLAS accelerator at Argonne National Laboratory. This paper will include a technical discussion of the Positive Ion Injector (PII) accelerator with its superconducting, niobium, very low-velocity accelerating structures. It will also discuss the current construction schedule of PII, and review an upgrade of the fast- tuning system. 10 refs., 6 figs. Argonne National Lab., IL (United States) OSTI; NTIS; INIS; GPO Dep. DOE; USDOE, Washington, DC (United States) United States 1991-01-01 English Conference Technical Report Conference: Symposium of northeastern accelerator personnel, Albuquerque, NM (United States), 15-19 Oct 1991 Medium: ED; Size: Pages: (12 p) OSTI ID: 6211422; Legacy ID: DE92003482 ANL/CP-74603; CONF-9110258--3 W-31109-ENG-38 Other: ON: DE92003482 ANL; EDB-92-005967 2008-02-07 6211422 http://www.osti.gov/bridge/servlets/purl/6211422-RYUTGT/ Operating experience with US = 0. 16c superconducting resonators Zinkann, G.P. 43 PARTICLE ACCELERATORS; SUPERCONDUCTING CAVITY RESONATORS; OPERATION; PERFORMANCE TESTING; ATLAS SUPERCONDUCTING LINAC; QUALITY FACTOR; ACCELERATORS; CAVITY RESONATORS; ELECTRONIC EQUIPMENT; EQUIPMENT; HEAVY ION ACCELERATORS; LINEAR ACCELERATORS; RESONATORS; SUPERCONDUCTING DEVICES; TESTING The ATLAS extension of the Argonne heavy-ion booster accelerator consists of three cryostat sections. The first cryostat contains six High Beta (US = 0.1c) resonators, a design which has been used since 1978 at Argonne. The second cryostat has three US = 0.1c resonators and three US = 0.16c resonators. The third cryostat holds six of the US = 0.16c resonators. These cryostats have been (on-line) in their accelerating position, with all systems installed and operational since February 1985. This paper will discuss the off-line tests of the US = 0.16 resonators, and the operating experience with the ATLAS linac, and particularly the new resonators, during our initial shake down. It will also cover the performance of the US = 0.16c resonators. Argonne National Lab., IL (USA) NTIS, PC A02/MF A01. Not Available United States 1985-01-01 English Conference Technical Report Conference: Symposium of northeastern accelerator personnel, Argonne, IL, USA, 14 Oct 1985 Medium: ED; Size: Pages: 12 OSTI ID: 6049898; Legacy ID: DE86005531 CONF-851040-7 W-31-109-ENG-38 Other: ON: DE86005531 EDB-86-043548 2008-09-02 6049898 http://www.osti.gov/bridge/servlets/purl/6049898-PSvIGy/ A very low intensity ion beam detector system. Zinkann, G. P. 43 PARTICLE ACCELERATORS; HEAVY ION ACCELERATORS; ION BEAMS; ION DETECTION; RADIATION DETECTORS; DESIGN No abstract prepared. Argonne National Lab., IL (US) INIS; OSTI as DE00011158 US Department of Energy (US) United States 1999-02-24 English Conference Conference: 8th International Conference on Heavy Ion Accelerator Technology (HIAT '98), Argonne, IL (US), 10/05/1998--10/09/1998; Other Information: PBD: 24 Feb 1999 Medium: P; Size: vp. OSTI ID: 11158 ANL/PHY/CP-97800 W-31109-ENG-38 TRN: AH200128%%623 ANL; EDB-01:070818; INS-US0104325 2008-02-04 11158 http://www.osti.gov/bridge/servlets/purl/11158-I1P9Gd/webviewable/ New fast tuning system for the Atlas Accelerator Zinkann, G. 43 PARTICLE ACCELERATORS; SUPERCONDUCTING CAVITY RESONATORS; TUNING; ATLAS SUPERCONDUCTING LINAC; DESIGN; TESTING; ACCELERATORS; CAVITY RESONATORS; ELECTRONIC EQUIPMENT; EQUIPMENT; HEAVY ION ACCELERATORS; LINEAR ACCELERATORS; RESONATORS; SUPERCONDUCTING DEVICES This paper will discuss field level limitations for on-line operation of the Argonne superconducting split-ring resonators. It also describes development of a new fast tuning system for the split-ring superconducting resonators. 1 ref., 1 fig. Argonne National Lab., IL (USA) NTIS, PC A02/MF A01 - OSTI; 1. Not Available United States 1987-01-01 English Conference Technical Report Conference: SNEAP conference, Tallahassee, FL, USA, 27 Sep 1987; Other Information: Portions of this document are illegible in microfiche products Medium: ED; Size: Pages: 4 OSTI ID: 6251297; Legacy ID: DE89012689 CONF-8709217-5 W-31109-ENG-38 Other: ON: DE89012689 EDB-89-086129 2008-09-04 6251297 http://www.osti.gov/bridge/servlets/purl/6251297-o5d0fR/ FASTBUS Readout Controller card for high speed data acquisition Zimmermann, S. (Fermi National Accelerator Lab., Batavia, IL (United States) Rio Grande do Sul Univ., Porto Alegre, RS (Brazil). Dept. of Electrical Engineering); Areti, V.H.; Foster, G.W.; Joshi, U.; Treptow, K. (Fermi National Accelerator Lab., Batavia, IL (United States)) 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 43 PARTICLE ACCELERATORS; 99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE; CDF; FASTBUS SYSTEM; COMPUTER ARCHITECTURE; COMPUTERIZED CONTROL SYSTEMS; DATA ACQUISITION SYSTEMS; EQUIPMENT INTERFACES; CONTROL SYSTEMS; ON-LINE CONTROL SYSTEMS; ON-LINE SYSTEMS This article describes a FASTBUS Readout Controller (FRC) for high speed data acquisition in FASTBUS based systems. The controller has two main interfaces: to FASTBUS and to a Readout Port. The FASTBUS interface performs FASTBUS master and slave operations at a maximum transfer rate exceeding 40 MBytes/s. The Readout Port can be adapted for a variety of protocols. Currently, it will be interfaced to a VME bus based processor with a VSB port. The on-board LR33000 embedded processor controls the readout, executing a list of operations download into its memory. It scans the FASTBUS modules and stores the data in a triple port DRAM (TPDRAM), through one of the Serial Access Memory (SAM) ports of the (TPDRAM). Later, it transfers this data to the readout port using the other SAM. The FRC also supports serial communication via RS232 and Ethernet interfaces. This device is intended for use in the data acquisition system at the Collider Detector at Fermilab. 5 refs., 3 figs. Fermi National Accelerator Lab., Batavia, IL (United States) OSTI; NTIS; INIS; GPO Dep. DOE; USDOE, Washington, DC (United States) United States 1991-10-01 English Conference Technical Report Conference: IEEE nuclear science symposium, Santa Fe, NM (United States), 5-9 Nov 1991 Medium: ED; Size: Pages: (6 p) OSTI ID: 6264395; Legacy ID: DE92004637 FNAL/C-91/290; CONF-911106--21 AC02-76CH03000 Other: ON: DE92004637 FNAL; NTS-92-008781; EDB-92-012458 2008-05-12 6264395 http://www.osti.gov/bridge/servlets/purl/6264395-JLsMC9/ Summary of workshop session F on electron-cloud instabilities Zimmermann, Frank; Wolski, Andrzej 43 PARTICLE ACCELERATORS; BEAM DYNAMICS; ELECTRONS; SIMULATION ELECTRON CLOUD We summarize Session F of the ECLOUD 04 workshop. This session was dedicated to beam instabilities driven by electron cloud. Specifically, we discuss the principal observations of electron-cloud instabilities, analytical models, simulation codes and the next steps that need to be taken to arrive at a predictive theory. Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (US) INIS; OSTI as DE00837423 USDOE Director. Office of Science. Office of High Energy Physics (US) United States 2004-05-27 English Conference Conference: 31st ICFA Advanced Beam Dynamics Workshop on Electron-Cloud Effects 'ECLOUD'04', Napa, CA (US), 04/19/2004--04/23/2004; Other Information: PBD: 27 May 2004 Medium: ED; Size: vp. OSTI ID: 837423 LBNL--56002 AC03-76SF00098 R&D Project: 459662; TRN: US200506%%129 LBNL; RN05032229; INS-US0500997 2008-02-05 837423 http://www.osti.gov/bridge/servlets/purl/837423-dKH525/native/ Ion Effects in the PEP-II High Energy Ring Zimmermann, Frank 43 PARTICLE ACCELERATORS; PEP Storage Rings; PEP Storage Rings; Ions; Ions; Trapping; Trapping We summarize the expected ion effects in the PEP-II High Energy Ring, considering both a uniform vacuum pressure and a local pressure bump in the IR quadrupoles. Stanford Linear Accelerator Center (SLAC), Menlo Park, CA ER United States 1998-10-14 English Technical Report Topical Medium: ED OSTI ID: 9886; Legacy ID: DE00009886 SLAC-AP-111 AC03-76SF00515 Other: ON: DE00009886 SLAC; PA: EDB-99:080968 2008-02-04 9886 http://www.osti.gov/bridge/servlets/purl/9886-jR4sxT/native/ Green Functions for the Radial Electric Component of the Monopole Wake Field in a Round Resistive Chamber Zimmermann, Frank 43 PARTICLE ACCELERATORS; Green Function; Green Function; Electric Fields; Electric Fields; Drift Tubes; Drift Tubes We compare different approximations to the point-charge Green function for the radial electric monopole field excited by an ultrarelativistic particle propagating through a resistive pipe, and study the applicability of these approximations for calculating the field of a bunch with finite length. It has been speculated that the exact form of the electric field could be important for simulations of the electron-cloud instability. In this paper, we show, however, that the usual approximation of the Green function by a delta function is adequate, except for extremely short bunch lengths. Stanford Linear Accelerator Center (SLAC), Menlo Park, CA ER United States 1998-10-14 English Technical Report Topical Medium: ED OSTI ID: 9887; Legacy ID: DE00009887 SLAC-AP-112 AC03-76SF00515 Other: ON: DE00009887 SLAC; PA: EDB-99:080951 2008-02-04 9887 http://www.osti.gov/bridge/servlets/purl/9887-X90pBI/native/ Vertical Emmittance Studies at the ATF Damping Ring Zimmermann, Frank 43 PARTICLE ACCELERATORS; Damping; Damping; Storage Rings; Storage Rings; Beam Emittance; Beam Emittance A primary purpose of the ATF Damping Ring is to demonstrate the small vertical emittance required for a future linear collider. In this report, we first describe the diagnostics available to measure this emittance. Then we discuss the dependence of the emittance on various parameters, such as the betatron tunes, vacuum pressure, and beam current, and, subsequently, study several methods of betatron-coupling correction. Next, we show that the interferometer used to determine the vertical beam size is sensitive to transverse beam tails and does not measure the core emittance, which could explain the observed sensitivity of the measured spot size to vacuum pressure and beam intensity. Finally, we summarize the results and propose a few further studies. In the appendix, we present recent measurements of the dynamic aperture, and discuss the variation of the beta functions, e.g., at the synchrotron light monitor, with the betatron tune. Here, we also present details of the SUSSIX program, by which, in the future, we hope to infer all linear coupling parameters as well as higher-order nonlinearities from turn-by-turn orbit data. Stanford Linear Accelerator Center (SLAC), Menlo Park, CA ER United States 1998-11-30 English Technical Report Topical Medium: ED OSTI ID: 9888; Legacy ID: DE00009888 SLAC-AP-113 AC03-76SF00515 Other: ON: DE00009888 SLAC; PA: EDB-99:080936 2008-02-04 9888 http://www.osti.gov/bridge/servlets/purl/9888-ZB1Yrc/native/ Nonlinear Fields and Dynamic Aperture near Low-Order Resonances at the KEK/ATF Zimmermann, Frank 43 PARTICLE ACCELERATORS; APERTURES; DAMPING; STORAGE RINGS; RESONANCE; CALCULATION METHODS; BEAM DYNAMICS We describe a scheme by which the nonlinear field contents of a storage ring can be estimated from the measured acceptance variation near low-order resonances. The method is applied to the KEK/ATF damping ring in an attempt to understand its small dynamic aperture. Stanford Linear Accelerator Center, Menlo Park, CA (US) USDOE Office of Energy Research (ER) (US) United States 1998-10-28 English Technical Report Other Information: PBD: 28 Oct 1998 Topical Medium: ED; Size: vp. OSTI ID: 9951 SLAC-PUB-7987 AC03-76SF00515 TRN: AH200125%%105 SLAC; EDB-01:061362; INS-US0103245 2008-02-04 9951 http://www.osti.gov/bridge/servlets/purl/9951-yKqMGs/native/ Thermal-Photon and Residual-Gas Scattering in the NLC Beam Delivery Zimmermann, Frank 43 PARTICLE ACCELERATORS; LINEAR COLLIDERS; LEP STORAGE RINGS; COLLIMATORS; COMPTON EFFECT; PARTICLE LOSSES; PHOTONS; SCATTERING; COMPUTERIZED SIMULATION; MONTE CARLO METHOD; D CODES Without collisions, the largest contribution to the beam lifetime in LEP is Compton scattering off thermal photons. Even if only a few particles are scattered in a single pass, the potential background generated could make this effect important for the NLC as well. We used a modified version of the tracking program DIMAD, which includes a Monte Carlo simulation for the Compton scattering on thermal photons, to calculate the fraction of scattered particles that are intercepted by downstream aperture restrictions and to determine the loss locations. We also studied particle losses due to other scattering processes. For all processes, the effect of additional collimators in the final focus was investigated. Stanford Linear Accelerator Center, Menlo Park, CA (US) USDOE Office of Energy Research (ER) (US) United States 1998-11-23 English Technical Report Other Information: PBD: 23 Nov 1998 Topical Medium: ED; Size: vp. OSTI ID: 9968 SLAC-PUB-8012 AC03-76SF00515 TRN: AH200125%%122 SLAC; EDB-01:061379; INS-US0103262 2008-02-04 9968 http://www.osti.gov/bridge/servlets/purl/9968-42mCFU/native/ A beam timing monitor for the SLC final focus Zimmermann, F.; Yocky, G.; Whittum, D.H.; McCormick, D.; Horton-Smith, S. 43 PARTICLE ACCELERATORS; ACCELERATORS; ELECTRONS; FLUCTUATIONS; LUMINOSITY; MONITORS; POSITRONS; STABILITY; TUNING; WAVE FORMS The relative timing of electron and positron bunches at the SLC interaction point (IP) is affected by phase and energy fluctuations in various upstream systems. By shifting the collision point, IP timing variation may degrade the luminosity and hinder IP spot-size tuning. To monitor the timing stability, in 1997 a novel rf monitor was installed in the South Final Focus, which measures the relative arrival time of the two bunches on every beam pulse. The monitor is based on narrow-band filtering of the beam-induced signal from a common pickup, delay of the first beam waveform into coincidence with the second, and homodyne mixing. Stanford Univ., Stanford Linear Accelerator Center, CA (US) INIS; OSTI as DE98059206 USDOE Office of Energy Research, Washington, DC (US) United States 1998-03-01 English Conference Conference: 1. Asian particle accelerator conference, Tsukuba (JP), 03/23/1998--03/27/1998; Other Information: Supercedes report DE98059206; PBD: Mar 1998; PBD: 1 Mar 1998 Medium: ED; Size: 4 pages OSTI ID: 663301; Legacy ID: DE98059206 SLAC-PUB--7783; CONF-980359-- AC03-76SF00515 Other: ON: DE98059206; TRN: US200305%%898 SLAC; RN03021022 2008-02-05 663301 http://www.osti.gov/bridge/servlets/purl/663301-SGajG6/webviewable/ Bunch-length and beam-timing monitors in the SLC final focus Zimmermann, F.; Yocky, G.; Whittum, D.H.; Seidel, M.; Ng, C.K.; McCormick, D.; Bane, K.L.F. 43 PARTICLE ACCELERATORS; ACCELERATORS; CALIBRATION; CERAMICS; COLLIDING BEAMS; FLUCTUATIONS; LUMINOSITY; MONITORS; STANFORD LINEAR COLLIDER During the 1997/98 luminosity run of the Stanford Linear Collider (SLC), two novel RF-based detectors were brought into operation, in order to monitor the interaction-point (IP) bunch lengths and fluctuations in the relative arrival time of the two colliding beams. Both bunch length and timing can strongly affect the SLC luminosity and had not been monitored in previous years. The two new detectors utilize a broad-band microwave signal, which is excited by the beam through a ceramic gap in the final-focus beam pipe and transported outside of the beam line vault by a 160-ft long X-Band waveguide. The authors describe the estimated luminosity reduction due to bunch-length drift and IP timing fluctuation, the monitor layout, the expected responses and signal levels, calibration measurements, and beam observations. Stanford Univ., Stanford Linear Accelerator Center, CA (US) INIS; OSTI as DE98059263 USDOE Office of Energy Research, Washington, DC (US) United States 1998-07-01 English Conference Conference: 8. workshop on advanced accelerator concepts, Baltimore, MD (US), 07/06/1998--07/11/1998; Other Information: Supercedes report DE98059263; PBD: Jul 1998; PBD: 1 Jul 1998 Medium: ED; Size: 11 pages OSTI ID: 674782; Legacy ID: DE98059263 SLAC-PUB--7898; CONF-980742-- AC03-76SF00515 Other: ON: DE98059263; TRN: US200305%%541 SLAC; RN03020667 2008-02-05 674782 http://www.osti.gov/bridge/servlets/purl/674782-TNRPWQ/webviewable/ An RF bunch length monitor for the SLC final focus Zimmermann, F.; Yocky, G.; Whittum, D. [and others] 43 PARTICLE ACCELERATORS; STANFORD LINEAR COLLIDER; BEAM BUNCHING; DIAGNOSTIC TECHNIQUES; BEAM MONITORS; DESIGN; LENGTH; MICROWAVE RADIATION; M CODES; COMPUTERIZED SIMULATION In preparation for the 1997 SLC run, a novel RF bunch-length monitor has been installed in the SLC South Final Focus. The monitor consists of a ceramic gap in the beam pipe, a 160-ft long X-band waveguide (WR90), and a set of dividers, tapers and microwave detectors. Electromagnetic fields radiated through the ceramic gap excite modes in the nearby open-ended X-band waveguide, which transmits the beam-induced signal to a radiation-free shack outside of the beamline vault. There, a combination of power dividers, tapers, waveguides, and crystal detectors is used to measure the signal power in 4 separate frequency channels between 7 and 110 GHz. For typical rms bunch lengths of 0.5-2 mm in the SLC, the bunch frequency spectrum can extend up to 100 GHz. In this paper, the authors present the overall monitor layout, describe MAFIA calculations of the signal coupled into the waveguide based on a detailed model of the complex beam-pipe geometry, estimate the final power level at the RF conversion points, and report the measured transmission properties of the installed waveguide system. Stanford Linear Accelerator Center, Menlo Park, CA (United States) INIS; OSTI as DE97006481 USDOE Office of Energy Research, Washington, DC (United States) United States 1997-05-01 English Conference Conference: 17. IEEE particle accelerator conference, Vancouver (Canada), 12-16 May 1997; Other Information: PBD: May 1997 Medium: ED; Size: 5 p. OSTI ID: 489680; Legacy ID: DE97006481 SLAC-PUB--7456; CONF-970503--9 AC03-76SF00515 Other: ON: DE97006481; TRN: TRN: 97:004079 SLAC; SCA: 430300; PA: EDB-97:086934; INS-97:012534; NTS-97:012970; SN: 97001799112; TVI: 10714 2009-11-12 489680 http://www.osti.gov/bridge/servlets/purl/489680-TcdLYx/webviewable/ Final-focus system and collision schemes for a 5-TeV W-band linear collider Zimmermann, F.; Whittum, D.H. 43 PARTICLE ACCELERATORS; CAVITIES; CRABS; ELECTRON-ELECTRON INTERACTIONS; ELECTRONS; FOCUSING; LINEAR ACCELERATORS; LINEAR COLLIDERS; LUMINOSITY; POSITRONS; QUADRUPOLES; SYNCHROTRON RADIATION A 3-km long high-gradient W-band switched matrix linac may, in parallel channels, accelerate multiple electron and positron bunches to an energy of 2.5 TeV, with a tight control on the intra-bunch energy spread. In this report, the authors describe a final-focus system for such an accelerator, whose length is restrained by eliminating chromatic correction. The interaction point (IP) spot size is limited by synchrotron radiation in the last quadrupole (Oide effect). The energy loss due to beamstrahlung is optionally suppressed by combining bunches of opposite charge and colliding the neutral beams. They present two different high-luminosity multiple-collision schemes, which can provide a luminosity of up to 10{sup 35} cm{sup -2} s{sup -1}, with only about 1 MW average beam power. In the first scheme, batches of equally-charged bunches are combined into superbunches which, possibly after charge compensation, are collided head-on with the opposing beam. In the second scheme, 2 5 charge-neutral electron-positron bunch pairs of one beam are each collided with 25 neutral bunch pairs of the other beam. These multiplexed collisions are facilitated by a crossing angle and by crab cavities upstream of the electron-positron combiner; however they also require focusing channels (e.g., a crystal) preserving the IP beam size between the collision points, a difficult if not impossible construct. The authors describe the challenges posed by each approach. Stanford Univ., Stanford Linear Accelerator Center, CA (US) INIS; OSTI as DE98059190 USDOE Office of Energy Research, Washington, DC (US) United States 1998-01-01 English Conference Conference: 2. international workshop on electron-electron interactions at TeV energies, Santa Cruz, CA (US), 09/22/1997--09/24/1997; Other Information: Supercedes report DE98059190; PBD: Jan 1998; PBD: 1 Jan 1998 Medium: ED; Size: 26 pages OSTI ID: 666063; Legacy ID: DE98059190 SLAC-PUB--7741; CONF-9709173-- AC03-76SF00515 Other: ON: DE98059190; TRN: US200305%%642 SLAC; RN03020767 2008-02-05 666063 http://www.osti.gov/bridge/servlets/purl/666063-SSqLEf/webviewable/