You need JavaScript to view this

The HERA polarimeter and the first observation of electron spin polarization at HERA

Abstract

Electron spin polarizations of about 8% were observed at HERA in November 1991. In runs during 1992 utilizing special orbit corrections, polarization values close to 60% have been achieved. In this paper the polarimeter, the machine conditions, the data analysis, the first results and plans for future measurements are described. (orig.).
Authors:
Barber, D P; Bremer, H D; Boege, M; Brinkmann, R; Gianfelice-Wendt, E; Kaiser, H; Klanner, R; Lewin, H C; Meyners, N; Vogel, W; [1]  Brueckner, W; Buescher, C; Dueren, M; Gaul, H G; Muecklich, A; Neunreither, F; Rith, K; Scholz, C; Steffens, E; Veltri, M; Wander, W; Zapfe, K; Zetsche, F; [2]  Chapman, M; Milner, R; [3]  Coulter, K; [4]  Delheij, P P.J.; Haeusser, O; Henderson, R; Levy, P; Vetterli, M; [5]  Green, P E.W.; Kitching, P; [6]  Gressmann, H; Janke, T; Micheel, B; Westphal, D; [7]  Kaiser, R; [8]  Lomperski, M; [9]  Lorenson, W; McKeown, R D; [10]  Losev, L; [11]  Nowak, W D; [12]  Patel, P M [13] 
  1. Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
  2. Max-Planck-Institut fuer Kernphysik, Heidelberg (Germany)
  3. Massachusetts Inst. of Tech., Boston, MA (United States)
  4. Argonne National Lab., IL (United States)
  5. British Columbia Univ., Vancouver (Canada). TRIUMF Facility
  6. Alberta Univ., Edmonton (Canada)
  7. Hamburg Univ. (Germany)
  8. Muenster Univ. (Germany). Inst. fuer Kernphysik
  9. Wisconsin Univ., Madison, WI (United States). Dept. of Physics
  10. California Inst. of Tech., Pasadena, CA (United States)
  11. Lebedev Physical Inst., Moscow (Russia)
  12. Deutsches Elektronen-Synchrotron (DESY), Zeuthen (Germany). Inst. fuer Hochenergiephysik
  13. McGill Univ., Montreal, Quebec (Canada)
Publication Date:
Oct 01, 1992
Product Type:
Technical Report
Report Number:
DESY-92-136
Reference Number:
SCA: 440104; PA: DEN-93:001400; SN: 93000938583
Resource Relation:
Other Information: PBD: Oct 1992
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; HERA STORAGE RING; POLARIMETERS; POLARIZED BEAMS; ELECTRON BEAMS; POLARIZATION-ASYMMETRY RATIO; COMPTON EFFECT; ENERGY DEPENDENCE; ERRORS; BEAM LUMINOSITY; BEAM TRANSPORT; PHOTON BEAMS; PHOTON-ELECTRON COLLISIONS; CALORIMETERS; POLARIZATION; OPTICAL SYSTEMS; PHOTONS; ELECTRONS; GAMMA SPECTROSCOPY; GAMMA DETECTION; DATA ACQUISITION; DATA ACQUISITION SYSTEMS; CALIBRATION; ON-LINE CONTROL SYSTEMS; COUNTING CIRCUITS; ENERGY SPECTRA; GAMMA SPECTRA; BACKGROUND RADIATION; SYNCHROTRON RADIATION; LASER RADIATION; 440104; HIGH ENERGY PHYSICS INSTRUMENTATION
OSTI ID:
10124286
Research Organizations:
Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
Country of Origin:
Germany
Language:
English
Other Identifying Numbers:
Other: ON: DE93766349; TRN: DE9301400
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
DEN
Size:
57 p.
Announcement Date:
Jul 04, 2005

Citation Formats

Barber, D P, Bremer, H D, Boege, M, Brinkmann, R, Gianfelice-Wendt, E, Kaiser, H, Klanner, R, Lewin, H C, Meyners, N, Vogel, W, Brueckner, W, Buescher, C, Dueren, M, Gaul, H G, Muecklich, A, Neunreither, F, Rith, K, Scholz, C, Steffens, E, Veltri, M, Wander, W, Zapfe, K, Zetsche, F, Chapman, M, Milner, R, Coulter, K, Delheij, P P.J., Haeusser, O, Henderson, R, Levy, P, Vetterli, M, Green, P E.W., Kitching, P, Gressmann, H, Janke, T, Micheel, B, Westphal, D, Kaiser, R, Lomperski, M, Lorenson, W, McKeown, R D, Losev, L, Nowak, W D, and Patel, P M. The HERA polarimeter and the first observation of electron spin polarization at HERA. Germany: N. p., 1992. Web.
Barber, D P, Bremer, H D, Boege, M, Brinkmann, R, Gianfelice-Wendt, E, Kaiser, H, Klanner, R, Lewin, H C, Meyners, N, Vogel, W, Brueckner, W, Buescher, C, Dueren, M, Gaul, H G, Muecklich, A, Neunreither, F, Rith, K, Scholz, C, Steffens, E, Veltri, M, Wander, W, Zapfe, K, Zetsche, F, Chapman, M, Milner, R, Coulter, K, Delheij, P P.J., Haeusser, O, Henderson, R, Levy, P, Vetterli, M, Green, P E.W., Kitching, P, Gressmann, H, Janke, T, Micheel, B, Westphal, D, Kaiser, R, Lomperski, M, Lorenson, W, McKeown, R D, Losev, L, Nowak, W D, & Patel, P M. The HERA polarimeter and the first observation of electron spin polarization at HERA. Germany.
Barber, D P, Bremer, H D, Boege, M, Brinkmann, R, Gianfelice-Wendt, E, Kaiser, H, Klanner, R, Lewin, H C, Meyners, N, Vogel, W, Brueckner, W, Buescher, C, Dueren, M, Gaul, H G, Muecklich, A, Neunreither, F, Rith, K, Scholz, C, Steffens, E, Veltri, M, Wander, W, Zapfe, K, Zetsche, F, Chapman, M, Milner, R, Coulter, K, Delheij, P P.J., Haeusser, O, Henderson, R, Levy, P, Vetterli, M, Green, P E.W., Kitching, P, Gressmann, H, Janke, T, Micheel, B, Westphal, D, Kaiser, R, Lomperski, M, Lorenson, W, McKeown, R D, Losev, L, Nowak, W D, and Patel, P M. 1992. "The HERA polarimeter and the first observation of electron spin polarization at HERA." Germany.
@misc{etde_10124286,
title = {The HERA polarimeter and the first observation of electron spin polarization at HERA}
author = {Barber, D P, Bremer, H D, Boege, M, Brinkmann, R, Gianfelice-Wendt, E, Kaiser, H, Klanner, R, Lewin, H C, Meyners, N, Vogel, W, Brueckner, W, Buescher, C, Dueren, M, Gaul, H G, Muecklich, A, Neunreither, F, Rith, K, Scholz, C, Steffens, E, Veltri, M, Wander, W, Zapfe, K, Zetsche, F, Chapman, M, Milner, R, Coulter, K, Delheij, P P.J., Haeusser, O, Henderson, R, Levy, P, Vetterli, M, Green, P E.W., Kitching, P, Gressmann, H, Janke, T, Micheel, B, Westphal, D, Kaiser, R, Lomperski, M, Lorenson, W, McKeown, R D, Losev, L, Nowak, W D, and Patel, P M}
abstractNote = {Electron spin polarizations of about 8% were observed at HERA in November 1991. In runs during 1992 utilizing special orbit corrections, polarization values close to 60% have been achieved. In this paper the polarimeter, the machine conditions, the data analysis, the first results and plans for future measurements are described. (orig.).}
place = {Germany}
year = {1992}
month = {Oct}
}