A polarized 3He target for the photon beam at MAMI

J. Krimmer, P. Aguar Bartolomé, J. Ahrens, S. Altieri, H. J. Arends, W. Heil, S. Karpuk, E. W. Otten, P. Pedroni, Z. Salhi, A. Thomas

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


A polarized 3He target has been installed for the first time inside the 4π 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.

Original languageEnglish
Pages (from-to)35-40
Number of pages6
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Issue number1
Publication statusPublished - Aug 21 2011
Externally publishedYes


  • MEOP
  • Polarized target

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation


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