A polarized 3He target for the photon beam at MAMI

Authors :: Zahir Salhi
H. J. Arends
Saverio Altieri
Andy Thomas
Ernst W. Otten
Werner Heil
P. Aguar Bartolomé
J. Krimmer
S. Karpuk
J. Ahrens
P. Pedroni
Institut de Physique Nucléaire de Lyon (IPNL)
Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL)
Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)
Source :: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Elsevier, 2011, 648, pp.35-40. ⟨10.1016/j.nima.2011.05.051⟩
Publication Year :: 2011
Publisher :: HAL CCSD, 2011.
Abstract: A polarized 3 He target has been installed for the first time inside the 4 π Crystal Ball detector at the tagged photon beam of the MAinz MIcrotron (MAMI). It has been demonstrated that the system works reliably and that the polarization losses during handling of the polarized gas are under control. Initial polarization values up to 70% and total relaxation times up to 20 h could be obtained during a first test beam time devoted to the measurement of the double polarized photoabsorption cross-section in the Δ ( 1232 ) baryon resonance region.

Language :: English
ISSN :: 01689002
Database :: OpenAIRE
Journal :: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Elsevier, 2011, 648, pp.35-40. ⟨10.1016/j.nima.2011.05.051⟩
Accession number :: edsair.doi.dedup.....6ed12b5808674f4e24c2ab2e446ce34e

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