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Coupling impedance of laminated magnets in the booster

Description: The magnets in the Fermilab Booster Synchrotron are laminated in order to minimize the eddy current losses and associated field distortions expected at a 15 Hz operating frequency. To further reduce the eddy current losses, the vacuum chamber is outside the magnet, hence allowing the beam induced wall currents to see the laminations directly. This note estimates the coupling impedances and beam energy loss per turn caused by the exposed laminations.
Date: July 11, 1986
Creator: Shafer, R. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Wide-band neutrino beams at 1000 GeV

Description: In a previous publication, S. Mori discussed various broad-band neutrino and antineutrino beams using 1000 GeV protons on target. A new beam (SST) has been designed which provides the same neutrino flux as the quadrupole triplet (QT) while suppressing the wrong sign flux by a factor of 18. It also provides more than twice as much high energy antineutrino flux than the sign-selected bare target (SSBT) and in addition, has better neutrino suppression. While it is possible to increase the flux obt… more
Date: April 11, 1983
Creator: Malensek, A. & Stutte, L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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LHC IRQ cryostat support mechanical performance

Description: The LHC Interaction Region Quadrupoles (IRQ) will be shipped from Fermilab to CERN. The IRQ magnets are supported by glass fiber supports. A prototype cryostat support has been tested under various mechanical forces in order to check its mechanical behavior. These measurements have been made in order to validate a numerical model. A large range of mechanical loads simulates loads due to the shipment of the device, the weight of the cold mass as well as the cool down conditions. Its mechanical p… more
Date: October 11, 1999
Creator: Darve, Ch.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A new semicustom integrated bipolar amplifier for silicon strip detectors

Description: The QPA02 is a four channel DC coupled two stage transimpedance amplifier designed at Fermilab on a semicustom linear array (Quickchip 2S) manufactured by Tektronix. The chip was developed as a silicon strip amplifier but may have other applications as well. Each channel consists of a preamplifier and a second stage amplifier/sharper with differential output which can directly drive a transmission line (90 to 140 ohms). External bypass capacitors are the only discrete components required. QPA02… more
Date: July 11, 1989
Creator: Zimmerman, T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Vertex detection at the Tevatron

Description: Addition of vertex detectors to CDF and D0 will facilitate a rich program of beauty physics at the Tevatron, and may enable tags of B and {tau} which facilitate searches for top and other heavy objects. We also address the operational considerations of triggering and radiation protection, and speculate on possible directions for upgrades. 9 refs., 7 figs.
Date: January 11, 1991
Creator: Amidei, D. (Michigan Univ., Ann Arbor, MI (USA)); Shepard, P. (Pittsburgh Univ., PA (USA)) & Tkaczyk, S. (Fermi National Accelerator Lab., Batavia, IL (USA))
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Study of vector boson decay and determination of the Standard Model parameters at hadronic colliders

Description: The power of the detectors and the datasets at hadronic colliders begins to allow measurement of the electroweak parameters with a precision that confronts the perturbative corrections to the theory. Recent measurements of M{sub z}, M{sub w}, and sin {theta}{sub w} by CDF and UA2 are reviewed, with some emphasis on how experimental precision is achieved, and some discussion of the import for the specifications of the Standard Model. 14 refs., 10 figs., 4 tabs.
Date: January 11, 1991
Creator: Amidei, D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Small t Physics at the TEVATRON Collider

Description: The first physics run of the superconducting Tevatron Collider at Fermilab ended this morning. A status report will be presented on the progress of the small angle elastic scattering and total cross section experiment, E710. The goals of this experiment are to measure the total proton-antiproton cross section from ..sqrt..s = 300 to 2000 GeV, the slope of the diffraction peak and rho, the ratio of the real to imaginary part of the forward scattering amplitude, at these energies. 1 ref., 8 figs.
Date: May 11, 1987
Creator: Bertani, M.; Giacomalli, G.; Maleyran, R.; Manarin, A.; Amos, N.; DeSalvo, R. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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An ESME update (v. 7. 2)

Description: The program ESME for modeling the longitudinal degree of freedom of beam dynamics in proton synchrotrons was described in considerable detail in User's Guide to ESME v. 7.1'' distributed about a year ago. This note corrects minor errors and omissions in the User's Guide, discusses bugs and crochets, notes fixes, and reports a few enhancements. Current work and plans are sketched. This note should be adequate to update the User's Guide. 8 refs.
Date: February 11, 1991
Creator: MacLachlan, J.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Equivalence of two formalisms for calculating higher order synchrotron sideband spin resonances

Description: Synchrotron sideband resonances of a first order spin resonance are generally regarded as the most important higher order spin resonances in a high-energy storage ring. Yokoya's formula for these resonances is rederived, including some extra terms, which he neglected, but which turn out to be of comparable magnitude to the terms retained. Including these terms, Yokoya's formalism and the SMILE algorithm are shown to be equivalent to leading order in the resonance strengths. The theoretical calc… more
Date: May 11, 1988
Creator: Mane, S.R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Silicon crystal under bending

Description: The mechanical behavior of a silicon crystal under bending is investigated. For a crystal of length 30 mm and thickness 3 mm, to achieve the specified bend angle of 0.64 mrad, the appropriate angle of the aluminum punches is 0.96 mrad.
Date: February 11, 1993
Creator: Tang, Z.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Remote manipulator experience in target train maintenance at Fermilab

Description: When Fermilab was designed in the late 1960's and early 1970's, it was anticipated that Neutrino target train servicing could be costly in terms of personnel radiation exposure. This was based in part on the expectation that target intensities of at least 1E13 protons/pulse would be required to produce several neutrino interactions in a large bubble chamber detector. This was indeed later proven to be the case and historically the Neutrino beamline has been targeted with about one half of the p… more
Date: October 11, 1984
Creator: Butala, S. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Silicon crystal under bending

Description: The mechanical behavior of a silicon crystal under bending is investigated. For a crystal of length 30 mm and thickness 3 mm, to achieve the specified bend angle of 0.64 mrad, the appropriate angle of the aluminum punches is 0.96 mrad.
Date: February 11, 1993
Creator: Tang, Z.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Flammable Gas Detection for the D-Zero Gas System

Description: The use of flammable gas and high voltage in detector systems is common in many experiments at Fermilab. To mitigate the hazards associated with these systems, Fermilab Engineering Standard SD-45B (Ref. 1) was adopted. Since this note is meant to be a guide and not a mandatory standard, each experiment is reviewed for compliance with SD-45B by the flammable gas safety subcommittee. Currently, there are only two types of flammable gas in use, ethane (Appendix A) and methane (Appendix B). The wor… more
Date: February 11, 1991
Creator: Spires, L. D. & Foglesong, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Coil Creep and Skew-Quadrupole Field Components in the Tevatron

Description: During the start-up of Run II of the Tevatron Collider program, several issues surfaced which were not present, or not seen as detrimental, during Run I. These included the repeated deterioration of the closed orbit requiring orbit smoothing every two weeks or so, the inability to correct the closed orbit to desired positions due to various correctors running at maximum limits, regions of systematically strong vertical dipole corrections, and the identification of very strong coupling between t… more
Date: July 11, 2011
Creator: Annala, G.; Harding, D. J.; Syphers, M. J. & /Fermilab
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Cryostat "UV" Relief Valve Selection and Process Flow

Description: This report describes the selection of the relief valves for the D-Zero cryostats. The selection was based on the flow requirements calculated in D-Zero engineering note 3740.214,224-EN-6 under fire conditions (1200 F, no vacuum) for the central cryostat; 264 SCFM. This value was calculated from section 5.3.5 of 'Pressure Relief Device Standards; S 1.3-Compressed Gas Storage Containers', published by the Compressed Gas Association, Inc. The flow calculated above is far greater than the required… more
Date: August 11, 1987
Creator: Mulholland, G. T. & Wintercorn, S. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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T-1025 IU SciBath-768 detector tests in MI-12

Description: This is a memorandum of understanding between the Fermi National Accelerator Laboratory (Fermilab) and the experimenters of Department of Physics and Center for Exploration of Energy and Matter, Indiana University, who have committed to participate in detector tests to be carried out during the 2012 Fermilab Neutrino program. The memorandum is intended solely for the purpose of recording expectations for budget estimates and work allocations for Fermilab, the funding agencies and the participat… more
Date: February 11, 2012
Creator: Tayloe, Rex; Cooper, R.; Garrison, L.; Thornton, T.; Rebenitsch, L.; DeJongh, Fritz et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Gas Electron Multiplier (GEM) Chamber Characteristics Test

Description: Gas Electron Multipliers (GEMs) have been used in many HEP experiments as tracking detectors. They are sensitive to X-rays which allows use beyond that of HEP. The UTA High Energy group has been working on using GEMs as the sensitive gap detector in a DHCAL for the ILC. The physics goals at the ILC put a stringent requirement on detector performance. Especially the precision required for jet mass and positions demands an unprecedented jet energy resolution to hadronic calorimeters. A solution t… more
Date: January 11, 2011
Creator: Yu, Jaehoon; White, Andy; Park, Seongtae; Hahn, Changhie; Baldeloma, Edwin; Tran, Nam et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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End Cap Calorimeter Inner Hadronic Module Installation

Description: The fixture used to hold the IH module while the EC Calorimeter is pul led over it consists of two tripod frames with a double wide flange between them. The two tripods have legs made of 6-inch Schedule 40 pipe, these legs are tied together with 2-inch Schedule 40 pipe. One of the legs sits on and is attached to a box made of 3/4-inch plates. The fixture was analyzed using ANSYS. The element used was a 3-D beam (STIF4). Equivalent properties were figured for the double wide flange. The legs of … more
Date: October 11, 1990
Creator: Stredde, H. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Mechanical support for straw tubes

Description: A design is proposed for mounting a large number of straw tubes to form an SSC central tracking chamber. The assembly is precise and of very low mass. The fabrication is modular and can be carried out with a minimum of tooling and instrumentation. Testing of modules is possible prior to the final assembly. 4 figs.
Date: March 11, 1990
Creator: Joestlein, H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Argon Spill Duct Bellows Leak Test Procedures and Results

Description: This engineering note describes the testing of the argoll spill duct bellows. It includes a detailed explanation of the procedures, along with a summary of the results of the testing done on 2/18/91 and 2/19/91 by Gary Trotter. The original bellows were purchased from Expansion Joint Systems (see Appendix 2). The general conclusion from the testing was that the leaks that were found were small enough so that they would not show up at the design pressure of 0.1 psig. Therefore, the leaks were ac… more
Date: March 11, 1991
Creator: Trotter, G. R. & Wu, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Flexible Support Stanchion

Description: Figure 1 shows the assembly drawing of the Central Calorimeter Cryostat Flexible Support Stanchion. Figures 2 and 3 show the Flexible Support STanchion in detail. These Stanchions support the cryostat safely, reduce the heat load to the cryostat from the ambient by a factor of more than ten, provide a spring like action that reduce the loads created by thermal contraction of the cryostat and position the cryostate accurately. Table 1 shows all of the details of the Flexible Support system for t… more
Date: May 11, 1987
Creator: Rudland, D. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Accelerators for Intensity Frontier Research

Description: In 2008, the Particle Physics Project Prioritization Panel identified three frontiers for research in high energy physics, the Energy Frontier, the Intensity Frontier, and the Cosmic Frontier. In this paper, I will describe how Fermilab is configuring and upgrading the accelerator complex, prior to the development of Project X, in support of the Intensity Frontier.
Date: May 11, 2012
Creator: Derwent, Paul
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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SDC preshower depth and weighting factor using hanging file data

Description: Often inert material exists in front of a calorimeter. If an electromagnetic (EM) shower initiates in this material, and energy is not sampled by the calorimeter, then energy resolution will be degraded. It is crucial to minimize the amount of inert material. Algorithms using a separate readout of the energy early in the shower (a ``preshower`` detector) can also be used to alleviate the reduced performance. This problem has previously been studied using CDF test beam data. In addition, an EGS … more
Date: February 11, 1993
Creator: Green, D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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