• Media type: E-Article
  • Title: Determination of Deuteron Beam Polarizations at COSY
  • Contributor: Chiladze, D. [Author]; Kacharava, A. [Author]; Glagolev, V. [Author]; Grigoriev, K. [Author]; Gusev, D. [Author]; Hartmann, M. [Author]; Hinterberger, F. [Author]; Hejny, V. [Author]; Khoukaz, A. [Author]; Keshelashvili, I. [Author]; Koch, H. R. [Author]; Komarov, V. [Author]; Rathmann, F. [Author]; Kulessa, P. [Author]; Kulikov, A. [Author]; Lehrach, A. [Author]; Lorentz, B. [Author]; Macharashvili, G. [Author]; Maier, R. [Author]; Maeda, Y. [Author]; Menke, R. [Author]; Mersmann, T. [Author]; Merzliakov, S. [Author]; Wilkin, C. [Author]; [...]
  • imprint: Soc., 2006
  • Published in: Physical review / Special topics / Accelerators and beams 9, 050101 (2006). doi:10.1103/PhysRevSTAB.9.050101
  • Language: English
  • DOI: https://doi.org/10.1103/PhysRevSTAB.9.050101
  • ISSN: 1098-4402
  • Keywords: carbon ; polarization: vector ; deuteron: polarized beam ; small-angle ; deuteron nucleus: elastic scattering ; semiconductor detector ; analyzing power ; magnetic spectrometer: experimental results ; polarization: tensor ; particle source: polarized beam ; polarization: measurement ; p deuteron: nuclear reaction ; Juelich COSY PS ; deuteron p --> 2n p ; deuteron p --> helium-3 pi0 ; p deuteron: charge exchange ; p deuteron: elastic scattering ; pi0: hadroproduction ; deuteron p --> deuteron p anything
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  • Description: The vector ( P-z) and tensor ( P-zz) polarizations of a deuteron beam have been measured using elastic deuteron-carbon scattering at 75.6 MeVand deuteron-proton scattering at 270 MeV. After acceleration to 1170 MeV inside the COSY storage ring, the polarizations of the deuterons were remeasured by studying the analyzing powers of a variety of nuclear reactions. For this purpose a hydrogen cluster target was employed at the ANKE magnetic spectrometer, which is situated at an internal target position in the ring. The overall precisions obtained were about 4% for both P-z and P-zz. Though all the measurements were consistent with the absence of depolarization during acceleration, only an upper limit of about 6% could be placed on such an effect.
  • Access State: Open Access