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A first simulation study of the barrel-endcap transition region in a calorimeter of the scintillator tile design

Description: We have made a first study of the calorimetric response to 10 GeV/c charged pions in the transition region between barrel and endcap for the scintillator-tile design pursued at Argonne National Laboratory using the simulation program ANLSIM. For (very nearly) projective tower orientations in the barrel, the crack appears deep within a narrow angular range, causing a loss of the response in that region up to 40%. Pointing the towers onto the beam axis 35 cm or more away from the nominal-interact… more
Date: August 24, 1990
Creator: Proudfoot, J. & Trost, H. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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High energy physics division semiannual report of research activities

Description: This report describes the research conducted in the High Energy Physics Division of Argonne National Laboratory during the period of January 1, 1991--June 30, 1991. Topics covered here include experimental and theoretical particle physics, advanced accelerator physics, detector development, and experimental facilities research. Lists of division publications and colloquia are included.
Date: August 1, 1991
Creator: Schoessow, P.; Moonier, P.; Talaga, R. & Wagner, R. (eds.) (Argonne National Lab., IL (United States))
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Electroweak interactions at the SSC

Description: Production of the gauge bosons, W/sup +/, W/sup -/, and Z/sup 0/ in various combinations at the Superconducting Super Collider is considered. Possibilities for producing Higgs bosons and detecting them are then evaluated. 18 refs. (LEW)
Date: August 1, 1985
Creator: Cahn, R. N.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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6. 4 tesla dipole magnet for the SSC. Revision

Description: A design is presented for a dipole magnet suitable for the proposed SSC facility. Test results are given for model magnets of this design 1 m long and 4.5 m long. Flattened wedge-shaped cables (''keystoned'') are used in a graded, two-layer ''cos theta'' configuration with three wedges to provide sufficient field uniformity and mechanical rigidity. Stainless steel collars 15 mm in radial depth, fastened with rectangular keys, provide structural support, and there is a ''cold'' iron flux return.… more
Date: August 1, 1985
Creator: Taylor, C.E.; Caspi, S.; Gilbert, W.; Hassenzahl, W.; Meuser, R.; Mirk, K. et al.
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Partner: UNT Libraries Government Documents Department
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The role of basic research in society

Description: This report contains general remarks on the rate of accelerators, especially the Superconducting Super Collider, in the advancement of modern scientific knowledge. (LSP)
Date: August 1, 1987
Creator: Seaborg, G. T.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Characteristics of multimuon events from fourth generation quarks at the SSC (superconducting super collider)

Description: Multimuon events can be a distinctive signature for pair production of t-quarks or 4th generation quarks at the SSC. In this paper we address aspects of the multimuon event topology relevant to detector design for the SSC. In particular, we discuss energy measurement, rapidity range, segmentation and the need for hadronic calorimetry in a dedicated muon detector.
Date: August 14, 1987
Creator: Baer, H.
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Partner: UNT Libraries Government Documents Department
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SSC dipole vacuum vessel support placement analysis

Description: Early (superconducting super collider) SSC dipole model magnets were supported at five points along their length by feet welded to the vacuum vessel. The cold mass was supported at the same five points. The number of supports was determined such that the maximum cold mass deflection between supports was limited to 0.010 inches as specified in the first version of the SSC Design Criteria. The spacing between supports was determined to minimize the sag of the cold mass, given five supports. This … more
Date: August 1, 1987
Creator: Nicol, T.H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Magnetic measurements at Lawrence Berkeley Laboratory

Description: Recent magnetic measurement activities at LBL have been concentrated in two separate areas, electro-magnets and permanent magnets for the Advanced Light Source (ALS), and superconducting magnets for the Superconducting Super Collider Laboratory (SSCL). A survey of the many different measurement systems is presented. These include: AC magnetic measurements of an ALS booster dipole engineering model magnet, dipole moment measurements of permanent magnet blocks for ALS wigglers and undulators, per… more
Date: August 1, 1991
Creator: Green, M.I.; Barale, P.; Callapp, L.; Case-Fortier, M.; Lerner, D.; Nelson, D. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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An overview of the multilayer insulation system for the Superconducting Super Collider

Description: The MLI system for the SSC is designed to meet strict performance requirements over the 25 year life of the accelerator. Thermal measurements at 80K and 20K have been used to create an MLI system that limits heat flow to design values while incorporating features that permit the use of large-scale fabrication techniques. The result is a cost-effective means of mass-producing MLI blankets of consistent geometry and thermal performance.
Date: August 1, 1991
Creator: Boroski, W.; Nicol, T. & Schoo, C.J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Thermal conduction of SSC (Superconducting Super Collider) wire

Description: A method suitable for measuring the thermal conductivity of good thermal conductors at low temperatures was implemented. It successfully served its purpose: to detect the effect of doping with manganese the interfilament part of the copper matrix of the superconducting wire used in the magnets of the Superconducting Super Collider. It uses two heaters and one thermometer per sample reducing the accuracy requirement on the thermometers, automatically compensating for zero offsets and reducing th… more
Date: August 1, 1989
Creator: Kuchnir, M. & Tague, J.L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Evolution of federal support of science

Description: Evolution of Federal Support of Science'' is Dr. G. T. Seaborg's speech presented at the symposium on the Establishment of Research Support Agencies, held on August 30, 1990, in Washington, DC. He gives a brief history on the development of nuclear energy from the discovery of fission in 1938 to the completion of uranium bombs in 1944. He also covered the scientific activities during the war, which included the establishment of National Defense Research Committee, the Office of Scientific Resea… more
Date: August 1, 1990
Creator: Seaborg, G. T.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Luminosities for collisions of intermediate bosons and other partons

Description: Parton-parton luminosities (l/s) dpounds/d tau are presented for WW, WZ, ZZ, ..gamma..W, ..gamma..Z, ..gamma gamma.., Wg, Wq, Zg, and Zq collisions. A comparison between the exact calculation and the calculation using our luminosities for Higgs boson production from WW fusion is also presented.
Date: August 1, 1984
Creator: Dawson, S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Simulating supersymmetry at the SSC

Description: Careful study of supersymmetric signatures at the SSC is required in order to distinguish them from Standard Model physics backgrounds. To this end, we have created an efficient, accurate computer program which simulates supersymmetric particle production and decay (or other new particles). We have incorporated the full matrix elements, keeping track of the polarizations of all intermediate states. (At this time hadronization of final-state partons is ignored). Using Monte Carlo techniques this… more
Date: August 1, 1984
Creator: Barnett, R.M. & Haber, H.E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Simulation of the SSC (Superconducting Super Collider) refrigeration system using the ASPEN/SP process simulator

Description: The SSC Magnet must maintain at a super conducting temperature of 4 K. The proposed refrigeration cooling processes consist of fairly simple closed cycles which take advantage of the Joule-Thompson effect via a series of expansions and compressions of helium gas which has been precooled by liquid nitrogen. The processes currently under consideration consist of three cycles, the 20 K shield cooling, the 45 K helium refrigerator and the helium liquefier. The process units which are to be employed… more
Date: August 1, 1990
Creator: Rasson, J. (Superconducting Super Collider Lab., Dallas, TX (USA)) & Dweck, J. (Simulation Sciences, Inc., Denver, CO (USA))
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Training in test samples of superconducting cables for accelerator magnets

Description: In the critical current measurement of some high current NbTi cables, the samples have to be ''trained'' by repeated quenching in order to obtain a usable voltage-current curve for I/sub c/ determination. This training behavior is most pronounced when the applied field is perpendicular to the wide face of the conductor and is strongly dependent on the copper-to-superconductor ratio and the clamping pressure. Data are given for SSC prototype cables as well as for HERA production conductors. Alth… more
Date: August 22, 1988
Creator: Ghosh, A. K.; Garber, M.; Robins, K. E. & Sampson, W. B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Phase displacement acceleration in the SSC

Description: The SSC (Superconducting Super Collider) is supposed to operate with bunched beams and the energy radiated by synchrotron radiation is replaced by the rf-system having a synchronous phase angle slightly different from 180/sup 0/. Here the case of operating the SSC with a coasting beam is considered. In particular the possibility of replacing the radiated energy phase displacement acceleration is investigated.
Date: August 1, 1984
Creator: Hofmann, A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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SSC 50mm collider dipole cryostat single tube support post conceptual design and analysis

Description: Superconducting Super Collider (SSC) dipole magnet cold masses are connected to the cryostat vacuum vessel at five places equally spaced along their length. Five supports limit sag of the cold assembly due to its own weight to a level consistent with the final magnet alignment specifications. The supports currently used in the 50mm dipoles being built at Fermilab and Brookhaven are adaptations of the design developed during the 40mm design program at Fermilab. The design essentially consists of… more
Date: August 1, 1991
Creator: Nicol, T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Obtaining slow beam spills at the SSC collider

Description: There is substantial interest in providing slow-spill external proton beams in parallel with ``interaction running`` at the 20 TeV SSC collider. The proposal is to cause a flux of particles to impinge on a target consisting of a bent crystal extraction channel. Additionally, a slow spill onto a conventional internal target could be used as a source of secondary beams for physics or test purposes and might also be used for B-physics as proposed for HERA. The ``natural`` beam loss rates from elas… more
Date: August 1, 1993
Creator: Ritson, D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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The LEB to MEB transfer kicker system prototype

Description: The design requirements for the Low Energy Booster (LEB) extraction kicker system at the Superconducting Super Collider Laboratory (SSCL) were to deflect a 12 GeV/c beam through an angle of 1.5 mrad. The circumference of the LEB was 540 M. This resulted in a 0.06 T-m integrated field, of 1.8 {mu}s width with a 1% to 99% rise time of less than 80 ns and allowable pulse ripple of less than {plus_minus}1%. The repetition frequency was 10 Hz and the allowable timing jitter was 2 ns. The field was r… more
Date: August 1, 1994
Creator: Pappas, C.; Wilson, M. & Anderson, D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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SSC Detector Muon Sub-System Beam Tests

Description: We propose to start a test-beam experiment at Fermilab studying the problems associated with tracking extremely high energy muons through absorbers. We anticipate that in this energy range the observation of the muons will be complicated by associated electromagnetic radiation Monte Carlo simulations of this background need to be tuned by direct observations. These beam tests are essential to determine important design parameters of a SSC muon detector, such as the choice of the tracking, geome… more
Date: August 1, 1993
Creator: Downing, R.; Errede, S.; Gauthier, A.; Haney, M.; Karliner, I.; Liss, T. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Superconductor supercollider front end development: Ring imaging Cerenkov studies; and warm liquid calorimetry. Annual technical progress report, September 1, 1992--August 31, 1993

Description: The work on developing electronics for the straw tracking system for the SDC detector made very considerable progress during the last year. The primary tasks were in the areas of system design, integrated circuits, substrates, cables, and system tests.
Date: August 1, 1993
Creator: Williams, H. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Design of the Nb{sub 3}Sn dipole D20

Description: The design of a 50 mm bore superconducting Nb{sub 3}Sn dipole with a short sample field of 13 T at 4.3 K and a current of 5500 A/turn is presented. The magnet is composed by two double pancake layers. The inner cable has 37 strands with a strand diameter of 0.75 mm and a Cu/Sc ratio of 0.4; the outer cable has 47 strands with a diameter of 0.48 mm and a Cu/Sc ratio of 1.15. In order to obtain a high transfer function and low saturation effects on the multipoles, the stainless steel collar is el… more
Date: August 1, 1992
Creator: Dell`Orco, D.; Scanlan, R. & Taylor, C. E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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