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in subjects: "Fermilab Accelerator"

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EPICS System: An Overview

This paper presents an overview of the EPICS control system at FERMILAB. EPICS is a distributed, multi-user, interactive system for the control and monitoring of particle beamlines at a high-energy experimental physics laboratory. The overview discusses the operating environment of the control system, the requirements which determined the design decisions, the hardware and software configurations, and plans for the future growth and enhancement of the present system. This paper is the first of … more

Date: February 1, 1984

Creator: Bartlett, J. F.; Bobbitt, J. S.; Kramper, B. J.; Lahey, T. E.; MacKinnon, B. A. & West, R. E.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Fermilab 200 MeV linac control system hardware

This report is a description of the present Linac distributed control system that replaces the original Xerox computer and interface electronics with a network of 68000-based stations. In addition to replacing the obsolete Xerox equipment, goals set for the new system were to retain the fast response and interactive nature of the original system, to improve reliability, to ease maintenance, and to provide 15 Hz monitoring of all Linac parameters. Our previous experience with microcomputer insta… more

Date: January 1, 1984

Creator: Shea, M.F.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Proposal to assemble a high resolution-electron sensitive-energy flow calorimeter in the NEULAND spectrometer

A ..gamma.. catcher and a liquid scintillation calorimeter module in a simple configuration that is well suited to the investigation of several different neutrino induced processes are described. The variety of neutrino beams now available at Fermilab and synchrotron intensity and energy together with the high resolution calorimeter allow a multiplicity of experiments to be carried out with a single detector configuration.

Date: January 1, 1977

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Slope Parameter for the Differential Cross-Section for the Reaction p + d. -->. X + d in the Region of Small Momentum Transfer at Fermilab Energies

A deuterium gas jet target was used in the circulating beam of the Fermilab accelerator to study the M/sup 2//sub x/ and s dependence and the slope parameter for pd ..-->.. Xd in the region 0.025 less than or equal to vertical bar t vertical bar less than or equal to 0.17 (GeV/c)/sup 2/ and 5 less than or equal to M/sup 2//sub x/ less than or equal to 0.068s GeV/sup 2/. A simple parametrization in terms of the variable (1 - x) is found.

Date: June 1, 1980

Creator: Akimov, Yu. K.; Bartenev, V. D. & Izyurov, V. M.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Recent experimental measurements of the neutrino charged current cross sections

Recent experimental measurements of the neutrino charged current total cross sections are reviewed. (GHT)

Date: January 1, 1979

Creator: Theriot, D.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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A conceptual framework for using DOE 5700. 6C and the other DOE orders as an integrated management system; the Fermilab experience

In this paper, I describe a conceptual framework that uses DOE Order 5700.6C and more than 140 other DOE Orders as an integrated management system -- but I describe it within the context of the broader sociological and cultural issues of doing research at DOE funded facilities. The conceptual framework has two components. The first involves an interpretation of the 10 criteria of DOE 5700.6C that is tailored for a research environment. The second component involves using the 10 criteria as func… more

Date: June 1, 1992

Creator: Bodnarczuk, M.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Operational history of Fermilab's 1500 W refrigerator used for energy saver magnet production testing

The 1500 W helium refrigerator system utilizes two oil-injected screw compressors staged to feed a liquid nitrogen pre-cooled cold box. Refrigeration is provided by two Sulzer TGL-22 magnetic/gas bearing turbines. The refrigerator feeds six magnet test stands via a 10,000 L dewar and subcooler equipped distribution box. The design of the controls has permitted the system to be routinely operated 24 hours/day, seven days/week with only five operators. It has operated approximately 90% of the 4-1… more

Date: September 1, 1985

Creator: Bianchi, A. J.; Barger, R. K.; Johnson, F. B.; McGuire, K. J.; Pinyan, K. D.; Wilson, F. W. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Double proton beam for E-621

For experiment 621 we plan to modify the transport system of the Proton-center beam to create two side-by-side proton beams separated by two inches. This Technical Memo describes how we plan to do this, and the results we hope to attain.

Date: October 1, 1982

Creator: Thomson, G.B.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Control and initial operation of the Fermilab BO low. beta. insertion

The operation of the Fermilab BO low ..beta.. insertion involves the coordinated control of the 4 strings of quadrupoles of the insertion itself along with several magnetic correction elements (20 dipoles for the closed orbit, 2 quad circuits for betatron tunes, 1 skew quad circuit for coupling, and 2 sextupole circuits for chromaticity). When the beam is stored at high energy, these elements must correct the errors induced by the strong superconducting quadrupoles of the insertion as the optic… more

Date: June 1, 1985

Creator: Finley, D. A.; Johnson, R. P. & Willeke, F.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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EPICS System: RSX Implementation Issues

This paper presents implementation details of the Experimental Physics Interactive Control System (EPICS). EPICS is used to control accelerated particle beams for high-energy physics experiments at the Fermi National Accelerator Laboratory. The topics discussed are: interprocessor communication, support of beamline terminals and devices, resource management, mapping, various problems, some solutions to the problems, performance measurement, and modifications and extensions to RSX-11M. This pape… more

Date: February 1, 1984

Creator: Lahey, T. E.; Bartlett, J. F.; Bobbitt, J. S.; Kramper, B. J.; MacKinnon, B. A. & West, R. E.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Brief summary of staffing levels at Fermilab during initial construction years

This paper very briefly summarizes the work of the various groups that were involved from the beginning through the end of the initial construction phase of the Fermilab project (defined here to be July 1, 1972) and the final construction or completion phase which is here defined as December 31, 1973. The numbers in this report have been gathered by examining the personnel records of Fermilab with the research being done by Chuck Marofske, the Head of Laboratory Services and his staff and by as… more

Date: November 1, 1983

Creator: Livdahl, P.V.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Pulsed power supplies for the Fermilab 1 TeV switchyard

An upgraded system of pulseed switching magnets has been implemented in the Fermilab Switchyard to accommodate proton energies up to 1 TeV. These devices are required for switching the ''slow'' and ''fast'' extracted beams into their respective beam lines. ''Slow'' beam passes undeflected through the magnet in the off condition. During a puls ''slow'' is disabled and ''fast'', which is of approx.1 ms duration, is deflected. The requirement then is for a ''flat-top'' current pulse of minimum ris… more

Date: June 1, 1985

Creator: Bartelson, L. & Walton, J.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Informal Technical Progress Report and Budget for Incremental Funding

The principal activities during the last year were related to LAMPF experiments, a newly initiated radiochemical search for Glashow particles, and the writing up of experimental work completed at FERMILAB studying the interaction of 400-MeV protons and 150-MeV pions with complex nuclei. Collaboration is proceeding with Los Alamos on heavy methanes as atmospheric tracers and in proposing a geological search for enhanced solar neutrinos in past geological times.

Date: March 25, 1982

Creator: Turkevich, A.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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UPS UNIX product support

The need to provide central support an distribution of many software packages across a variety of UNIX platforms at Fermilab has led to development of a methodology, UPS, for the packaging, maintenance, and distribution of our software. UPS has now been implemented and in use for almost a year on four different UNIX platforms. This paper discusses the goals of the software, implementation of the product, and experiences in its use. 8 refs., 3 figs.

Date: June 1, 1991

Creator: Votava, M.; Bliss, W.; Cutts-Bone, S.; Debaun, C.; Donno-Raffaelli, F.; Herber, R. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Versatile secondary beam for the meson area

A new secondary beam design is outlined for the Meson M6 Beamline that combines versatility with economy. The beamline described will transport charged particles of either sign to 800 GeV/c and bring the beam to a focus in one of three potential experimental areas. The plan makes maximal use of existing civil construction.

Date: March 1, 1982

Creator: Kirk, T.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Isolated data acquisition system for high voltage applications

This report describes the design and operation of a microcomputer controlled system for acquisition of both analog and binary data within the high voltage stages of a linac modulator. The system is comprised of a microprocessor Controller which communicates with the remote data Acquisition circuits via an optical bus. The bus, which uses a 1 MHz Manchester II format, is configured as a loop, starting at the Controller, daisy-chaining the remote cards and terminating back at the Controller. Upon… more

Date: June 1, 1985

Creator: Waitz, A. & Donaldson, A.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Delay line proportional chambers for the Fermilab external muon identifier

Thirty-nine one meter square proportional chambers with delay line readout were constructed for the external muon identifier of the Fermilab 15 foot bubble chamber. They provide X,Y,U(45/sup 0/) and T (avalanche time) information using a single wire plane, etched strip cathodes and nine amplifiers. They have a time resolution of +-27ns, single particle spatial resolution of +-2 to +-3mm and double particle resolution of approximately 2/sup 1///sub 2/ to 4cm. The energy accessible to each wire i… more

Date: October 19, 1977

Creator: Parker, S.; Orthel, J. & Marriner, J.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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FERMILAB p anti p project: a comparison with p anti p at CERN

Fermilab's p anti p project is described, with emphasis on the anti p source. A detailed comparison is made with the design goals and accomplishments of the CERN p anti p project.

Date: May 1, 1982

Creator: Johnson, R.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Fermilab Tevatron

A summary is given of the Fermilab Tevatron project. The project is organized into three phases. The first includes the superconducting magnet ring, minimal refrigeration and rf for slow acceleration of a beam to approximately 1 TeV. The second involves additional refrigeration and rf for fast pulsing up to approximately 2 min/sup -1/. Third phase includes beam extraction and switchyard modifications, experimental areas and beams modifications and additions. (GHT)

Date: February 1, 1981

Creator: Teng, L.C.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Abort kicker power supply systems at Fermilab

Over the past several years, Fermilab has been operating with a single turn proton abort system in both the superconducting Tevatron and the conventional Main Ring. The abort kicker power supply for this system discharges a lumped capacitance into the inductive magnet load, causing the beam to enter the abort channel. The characteristics of this current waveform are defined by the requirements of the machine operation. The standard fixed target running mode calls for 12 booster batches of beam … more

Date: June 1, 1985

Creator: Krafczyk, G.; Dugan, G.; Harrison, M.; Koepke, K. & Tilles, E.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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EPICS System: System Structure and User Interface

This paper present the user's view of and the general organization of the EPICS control system at Fermilab. Various subsystems of the EPICS control system are discussed. These include the user command language, software protection, the device database, remote computer interfaces, and several application utilities. This paper is related to two other papers on EPICS: an overview paper and a detailed implementation paper.

Date: February 1, 1984

Creator: West, R. E.; Bartlett, J. F.; Bobbitt, J. S.; Lahey, T. E.; Kramper, B. J. & MacKinnon, B. A.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Low-cost replacement cable for beamline SWIC installation

The low-cost replacement cable consists of a 510 foot roll of 19 pair twisted shielded cable with each end terminated by a standard AMP mass termination connector. The cable tested out and was installed with no irregularities or problems. The termination procedure is plotted. (LEW)

Date: May 1, 1982

Creator: Schoo, D.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Fermilab timeline generation system

In this paper the technique used to control the relative timing and synchronization of the major accelerator systems at Fermilab is described. The various operating modes of the injector accelerators include fixed target and colliding beam operation in conjunction with simultaneous machine studies. For example, in a 60 second interval the conventional main Ring may be called upon to: (a) load the Tevatron with 12 high intensity Booster batches each containing 82 rf bunches at 150 GeV, (b) trans… more

Date: June 1, 1985

Creator: Johnson, R. P.; Knopf, W. R. & Thomas, A. D.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Magnetic measurements of the correction and adjustment magnets of the main ring

Correction magnets correct the field imperfections and alignment errors of the main quadrupole and bend magnets. For reducing and controlling chromaticity there are 186 sextupoles and 78 octupoles, while for suppressing various resonances there are 12 normal and 18 skew sextupoles and 24 normal and 19 skew quadrupoles. Beam positions are individually controlled by 108 horizontal and 108 skew dipoles. This report includes results of the all Main Ring correction and adjustment magnet harmonic mea… more

Date: July 1, 1986

Creator: Trbojevic, D.

Item Type: Article

Partner: UNT Libraries Government Documents Department