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First internal and external experiments at COSY Juelich

Abstract

The inauguration of the cooler synchrotron COSY Juelich was celebrated on April 1st, 1993. After the first successful acceleration to proton momenta above 800 GeV/c, beamtimes for experiments were scheduled in parallel to further machine development. The first experiment was the internal target experiment EDDA, which investigated the energy dependence of the p-p interaction. It makes use of a 3x4 {mu}m{sup 2} thin CH{sub 2} fiber as an internal target. The thickness of the fiber is more than adequate to achieve high luminosities, so the intensity of the stored beam has to be reduced to 10{sup 7} p. On the other hand, it is thin enough to achieve beam lifetimes of 3 s at 1.4 GeV/c. Details of the target fabrication and the first experimental results will be discussed. Both external experimental facilities at COSY, the time-of-flight spectrometer, and the magnetic spectrometer BIG KARL use a liquid hydrogen (deuterium) target. The first experiments were carried out at proton energies between 300 MeV and 500 MeV. Also, these experimental data will be presented. Two further internal experiments are prepared for the installation into the COSY ring. The target for the first experiment is a gas-jet target, the second experiment uses ribbon  More>>
Authors:
Prasuhn, D; [1]  Maier, R; [1]  Bechstedt, U; [1]  Dietrich, J; [1]  Hacker, U; [1]  Martin, S; [1]  Stockhorst, H; [1]  Toelle, R; [1]  Grzonka, D; [1]  Nake, C; [1]  Mosel, F [2] 
  1. Forschungszentrum Juelich GmbH (Germany). Inst. fuer Kernphysik
  2. Bonn Univ. (Germany). Inst. fuer Strahlen- und Kernphysik
Publication Date:
Aug 01, 1995
Product Type:
Journal Article
Report Number:
CONF-941041-
Reference Number:
SCA: 430303; 430400; 662340; PA: AIX-26:073735; EDB-96:009830; SN: 96001508131
Resource Relation:
Journal Name: Nuclear Instruments and Methods in Physics Research, Section A; Journal Volume: 362; Journal Issue: 1; Conference: 17. biennial world conference of the International Nuclear Target Development Society: targets, research materials and related topics of hadron physics, Bloomington, IN (United States), 17-21 Oct 1994; Other Information: PBD: 1 Aug 1995
Subject:
43 PARTICLE ACCELERATORS; 66 PHYSICS; COSY STORAGE RING; TARGET CHAMBERS; DEUTERIUM TARGET; HYDROGEN 1 TARGET; PROTON-PROTON INTERACTIONS; ELASTIC SCATTERING; PROTON BEAMS; ANGULAR DISTRIBUTION; BEAM LUMINOSITY; BEAM TRANSPORT; DEUTERIUM; DIFFERENTIAL CROSS SECTIONS; ENERGY DEPENDENCE; EXPERIMENTAL DATA; FABRICATION; FIBERS; GAS FLOW; GEV RANGE 100-1000; HYDROCARBONS; HYDROGEN; ION BEAM TARGETS; JETS; LIQUEFIED GASES; MAGNETIC FIELDS; MAGNETIC SPECTROMETERS; PROTONS; THICKNESS; TIME-OF-FLIGHT SPECTROMETERS
OSTI ID:
148764
Country of Origin:
Netherlands
Language:
English
Other Identifying Numbers:
Journal ID: NIMAER; ISSN 0168-9002; TRN: NL95FI227073735
Submitting Site:
NLN
Size:
pp. 16-19
Announcement Date:

Citation Formats

Prasuhn, D, Maier, R, Bechstedt, U, Dietrich, J, Hacker, U, Martin, S, Stockhorst, H, Toelle, R, Grzonka, D, Nake, C, and Mosel, F. First internal and external experiments at COSY Juelich. Netherlands: N. p., 1995. Web. doi:10.1016/0168-9002(95)00309-6.
Prasuhn, D, Maier, R, Bechstedt, U, Dietrich, J, Hacker, U, Martin, S, Stockhorst, H, Toelle, R, Grzonka, D, Nake, C, & Mosel, F. First internal and external experiments at COSY Juelich. Netherlands. doi:10.1016/0168-9002(95)00309-6.
Prasuhn, D, Maier, R, Bechstedt, U, Dietrich, J, Hacker, U, Martin, S, Stockhorst, H, Toelle, R, Grzonka, D, Nake, C, and Mosel, F. 1995. "First internal and external experiments at COSY Juelich." Netherlands. doi:10.1016/0168-9002(95)00309-6. https://www.osti.gov/servlets/purl/10.1016/0168-9002(95)00309-6.
@misc{etde_148764,
title = {First internal and external experiments at COSY Juelich}
author = {Prasuhn, D, Maier, R, Bechstedt, U, Dietrich, J, Hacker, U, Martin, S, Stockhorst, H, Toelle, R, Grzonka, D, Nake, C, and Mosel, F}
abstractNote = {The inauguration of the cooler synchrotron COSY Juelich was celebrated on April 1st, 1993. After the first successful acceleration to proton momenta above 800 GeV/c, beamtimes for experiments were scheduled in parallel to further machine development. The first experiment was the internal target experiment EDDA, which investigated the energy dependence of the p-p interaction. It makes use of a 3x4 {mu}m{sup 2} thin CH{sub 2} fiber as an internal target. The thickness of the fiber is more than adequate to achieve high luminosities, so the intensity of the stored beam has to be reduced to 10{sup 7} p. On the other hand, it is thin enough to achieve beam lifetimes of 3 s at 1.4 GeV/c. Details of the target fabrication and the first experimental results will be discussed. Both external experimental facilities at COSY, the time-of-flight spectrometer, and the magnetic spectrometer BIG KARL use a liquid hydrogen (deuterium) target. The first experiments were carried out at proton energies between 300 MeV and 500 MeV. Also, these experimental data will be presented. Two further internal experiments are prepared for the installation into the COSY ring. The target for the first experiment is a gas-jet target, the second experiment uses ribbon targets for the interaction. The status of both experimental setups will be shown. (orig.).}
doi = {10.1016/0168-9002(95)00309-6}
journal = {Nuclear Instruments and Methods in Physics Research, Section A}
issue = {1}
volume = {362}
journal type = {AC}
place = {Netherlands}
year = {1995}
month = {Aug}
}