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in publisher: "Fermi National Accelerator Laboratory"  
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A Main Ring bunch length monitor by detecting two frequency components of the beam

Description: The bunch length is measured by detecting two revolution frequency harmonics of the beam and taking the ratio of their amplitudes. Two heterodyne receivers have been made to direct them, one at 53MHz and the other at 159MHz. These signals are picked-up by a stripline detector. An analog circuit provides a signal proportional to the bunch length. The monitor measures variation of the bunch length as a function of time in the Main Ring. The measured signal, which sometimes shows that the bunches … more
Date: June 2, 1989
Creator: Ieiri, T. & Jackson, G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Lab 6 winding facility

Description: This note describes the winding machine installed by the facility support group at lab 6 in the Fermilab village. It is available for use by outside users and groups within the lab. The machine can wind wire planes whose longest dimension is less than 10 feet. The Wire spacing range has an upper practical limit of about 5mm. Spacing beyond this requires a very long index time and therefore slows down the winding speed prohibitively.
Date: February 2, 1983
Creator: Guerra, J.; Hansen, S. & Mangene, C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Limits on the masses of supersymmetric particles from 1. 8 TeV p p collisions

Description: Preliminary analysis of p{bar p} collision events at {radical}s = 1.8 TeV using events with large missing transverse energy and on two (four) jets in a minimal SUSY model places new limits on the masses of squarks (gluinos). The data sample (4 pb{sup {minus}1}) was taken in 1988--89 and is approximately 160 times as large as the data sample from our earlier 1987 run (25 nb{sup {minus}1}). 5 refs., 1 fig.
Date: October 2, 1990
Creator: Beretvas, A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Water cooling considerations for the SSC

Description: The purpose of this note is to specify parameters for hypothetical SSC water cooling systems, in order that the comparative advantages of these system can be studied. The various methods of heat rejection considered include: cooling towers, cooling ponds, ground water recharge system, water-to-air (dry) cooling towers, use of tunnel sump water, or some combination.
Date: November 2, 1984
Creator: O'Meara, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Software for the ACP (Advanced Computer Program) multiprocessor system

Description: Software has been developed for use with the Fermilab Advanced Computer Program (ACP) multiprocessor system. The software was designed to make a system of a hundred independent node processors as easy to use as a single, powerful CPU. Subroutines have been developed by which a user's host program can send data to and get results from the program running in each of his ACP node processors. Utility programs make it easy to compile and link host and node programs, to debug a node program on an ACP… more
Date: February 2, 1987
Creator: Biel, J.; Areti, H.; Atac, R.; Cook, A.; Fischler, M.; Gaines, I. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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D0 Silicon Upgrade: Thermally Induced Stresses in the Components of a D0 Ladder in the Silicon Tracker

Description: During the operation of the silicon tracker, the ladders will be in direct thermal contact with a cooling channel. The expected operating temperature of the cooling channel is 0 C, maintained by a cooling fluid whose bulk temperature is below 0 C. The assembly temperature is assumed to be 22 C. Due to the mis-match of material expansion coefficients, thermal stresses will be induced in the epoxy, beryllium, and silicon of the ladders. Calculations are presented here as well as some thermal cycl… more
Date: July 2, 1996
Creator: Ratzmann, Paul M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Report of the Census Task Force on beamline control system requirements

Description: A special task force was appointed to study the experience with the present beamline control system at Fermilab and to make recommendations in this area. The charge of the committee and the list of its members are appended. In order to carry out its assignment, the committee conducted a series of meetings in which it discussed the controls situation in general and the best way to approach the user community. The various groups of users were identified, and a letter was written to representative… more
Date: October 2, 1986
Creator: Barsotti, E. J.; Bartlett, J. F.; Bogert, V. D.; Borcherding, F. O.; Butler, J.; Czarapata, P. C. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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D0 Solenoid Upgrade Project: Vacuum Pumping Calculations for the D0 Solenoid

Description: This engineering note documents the calculations done to determine the vacuum pumping speed for the D-Zero solenoid. The raw calculations are attached. A summary of the results are listed. The vacuum pumping speed of the solenoid is determined by the conductance of the pumping path. At higher pressure ranges during initial pumpdown, the conductances will be rather high. Calculations were not done for the transient pumpdown period, only the steady state type pumping situation. The pressure is as… more
Date: August 2, 1993
Creator: Rucinski, R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Recent Progress of RF Cavity Study at Mucool Test Area

Description: Summar of presentation is: (1) MTA is a multi task working space to investigate RF cavities for R&D of muon beam cooling channel - (a) Intense 400 MeV H{sup -} beam, (b) Handle hydrogen (flammable) gas, (c) 5 Tesla SC solenoid magnet, (d) He cryogenic/recycling system; (2) Pillbox cavity has been refurbished to search better RF material - Beryllium button test will be happened soon; (3) E x B effect has been tested in a box cavity - Under study (result seems not to be desirable); (4) 201 MH… more
Date: December 2, 2011
Creator: Yonehara, Katsuya
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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D0 HVAC System Heat Pump Controller Programming, Networking, and Operating Information

Description: The purpose of this engineering note is to provide the necessary information to setup, program, and network the Electronic Systems USA Heat Pump Controller with the LON network card and Intellution Fix32 to operate properly within the HVAC system at D-Zero. The heat pump controllers are used for local temperature control of the office environments on the fifth and six floors of D-Zero. Heat pump units 1-6 are located in the ceiling of the sixth floor. Heat pump units 7-12 are found in the fifth… more
Date: December 2, 1999
Creator: Anderson, B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Port Card Moduel

Description: The Port Card will be one link in the data acquisition system for the D0 Silicon Vertex Detector. This system consists of the following parts, starting at the detector: Silicon strip detectors are mounted in a spaceframe and wire-bonded to custom bare-die integrated circuits (SVX-II chips) that digitize the charge collected by the strips. The 128-channel chips are mounted on a High-Density Interconnect (HDI) that consists of a small flex circuit that routes control signals and eight data bits f… more
Date: May 2, 1994
Creator: Utes, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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MH Test Filler Force Limitations

Description: The OH modules for the DO end calorimeter are being tested by supporting a load to simulate the MH, IH, and EM modules. This test structure, the MH filler, is inserted into the previously assembled OH modules, and then loaded with hydraulic jacks. The maximum test load applied by the jacks is 78,600 lb, which is via the two downstream jacks at 130% of the nominal load. Bill Cooper's memo of 9/10/90 is include as appendix C. This note presents calculations for the AISC maximum allowable stresses… more
Date: October 2, 1990
Creator: Primdahl, K. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Precooler Ring Vacuum System

Description: The precooler vacuum system, as proposed by FNAL, is based on a suitable modification of the existing Electron Cooling Ring System. Because of the magnetic cycle of the bending magnets, distributed ion pumping, as exists in the Electron Cooling Ring, is not applicable. Instead, the proposed pumping will be done with commercial appendage ion pumps mounted approximately every two meters around the circumference of the ring. The loss of effective pumping speed and non-uniformity of system pressure… more
Date: October 2, 1980
Creator: Moenich, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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4X6" Rotary Bayonet LN2 Test Fill

Description: This engineering note describes a test fill of the 4-inch x 6-inch rotary bayonet test fixture with LN{sub 2}. This test verifies the operation of valves on the fixture, and checks for proper construction/insulation. Further cold testing is imminent (with rotation and moment loading of the bayonet) after proper construction is verified and the test fixture is accepted. While this test fixture is a pressure vessel (4-inch), it does not require special safety treatment because it is under 6-inch … more
Date: August 2, 1988
Creator: Fitzpatrick, J.B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Common Mode Rejection Calculations on the Debuncher Upgrade

Description: The 4-8 GHz Transverse Debuncher Cooling Systems are power limited. Misalignments and imperfections in the transverse pickup arrays will generate a longitudinal signal in addition to the betatron signal. This longitudinal signal can use up a significant fraction of the precious TWT power if the imperfections are large enough. This note will summarize calculations of the contributions to the longitudinal signal observed in the transverse systems of the 4-8 GHz Debuncher slow-wave pickup arrays d… more
Date: February 2, 2001
Creator: McGinnis, Dave
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Response and Uniformity Studies of Directly Coupled Tiles

Description: A finely-segmented scintillator-based calorimeter which capitalizes on the marriage of proven detection techniques with novel solid-state photo-detector devices such as Multi-pixel Photon Counters (MPPCs) is an interesting calorimetric system from the point of view of future detector design. A calorimeter system consisting of millions of channels will require a high degree of integration. The first steps towards this integration have already been facilitated by the small size and magnetic field… more
Date: April 2, 2010
Creator: Zutshi, Vishnu
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Fermilab Failure Analysis of TeV I (TIE) Array Soldier Joints

Description: Failure of TIE array loop assembly solder joints within Stochastic Cooling Tanks during system operation resulted in the loop base plate dropping into the beam region. This caused a non-operational condition to exist within the system. In order to understand the failure mechanism, several loop assemblies were submitted to Midwest Materials and Engineering Consultants for complete metallurgical evaluation and failure analysis. Because of the similarity between the loop assembly material construc… more
Date: September 2, 1987
Creator: Runge-Marchese, Jude M. & Daehn, Ralph C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Proposed Magnet Alignment Changes for AP-1

Description: AP-1 was built to connect the Antiproton Source with the Main Ring accelerator. The beamline was designed to support modes of operation at both 8 GeV and 120 GeV kinetic energy. During the days of Main Ring operation, 120 GeV beam was extracted through the field region of a Lambertson at F-17 and transported approximately 174 meters to the production target. This 'pbar production' mode required a lattice that would focus the proton beam to a small spot size on the target to maximize antiproton … more
Date: February 2, 2001
Creator: Morgan, James
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Diboson production cross-sections at square root s = 1.96 TeV

Description: Recent results of W{gamma}, Z{gamma} and WW cross-section measurements in the electron and muon channels are reported from p{bar p} collisions at {radical}s = 1.96 TeV recorded by the CDF and D0 collaborations. Total cross-sections and kinematic distributions are found to be consistent with Standard Model expectations.
Date: August 2, 2004
Creator: Robson, A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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CUB DI (Deionization) column control system

Description: For the old MR (Main Ring), deionization was done with two columns in CUB, using an ion exchange process. Typically 65 GPM of LCW flew through a column, and the resistivity was raised from 3 Mohm-cm to over 12 Mohm-cm. After a few weeks, columns lost their effectiveness and had to be regenerated in a process involving backwashing and adding hydrochloric acid and sodium hydroxide. For normal MR operations, LCW returned from the ring and passed through the two columns in parallel for deionization… more
Date: July 2, 1999
Creator: Seino, K. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Inclusive jets at the Tevatron

Description: Results from CDF and D0 collaborations on the inclusive jet cross sections at 1800 and 630 GeV and strong coupling constant are presented. The statistical uncertainties are significantly reduced relative to the previous results and experimental systematic uncertainties are comparable with the uncertainties in the theoretical predictions. Despite observed discrepancies with theory, which could be accommodated by modifications of parton distribution functions, the inclusive jet cross sections can… more
Date: July 2, 1999
Creator: Mesropian, C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Electroweak results from CDF

Description: Inclusive W and Z production cross-sections have been measured by CDF and certain electroweak parameters extracted with high precision from these measurements. New results on diboson production at the Tevatron are also presented.
Date: June 2, 2004
Creator: Waters, D. S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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