Research on Depolarization of Transversely Polarized Gas Target Induced by High Energy e-Beam

WANG Si-Guang; ZHOU Shu-Hua; YE Yun-Xiu; YE Zhen-Yu; MAO Ya-Jun

Chinese Physics C> 2006, Vol. 30> Issue(9) : 892-895

Research on Depolarization of Transversely Polarized Gas Target Induced by High Energy e-Beam

School of Physics, Peking University, Beijing 100871, China2 China Institute of Atomic Energy, Beijing 102413, China3 University of Science and Technology of China, Hefei 230026, China4 Department of Physics, University of Illinois, Urbana, Illinois 61801, USA5 Desy, Deutsches Elektronen-Synchrotron, 22603 Hamburg, Germany6 Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara and Dipartimento di Fisica, Universit\`{a} di Ferrara, 44100 Ferrara, Italy7 Physikalisches Institut, Universit\

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Abstract：
High frequency electromagnetic fields induced by high-energy e-beam can cause resonance depolarization of the HERMES transversely polarized gas target. This paper presents the research results on the mechanism of depolarization and the position where resonance σ₂₄ takes place. About 3% depolarization has been saved after avoiding such resonance by fixing the magnet field far from resonance position according to the measured results.

References

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WANG Si-Guang, ZHOU Shu-Hua, YE Yun-Xiu, YE Zhen-Yu and MAO Ya-Jun. Research on Depolarization of Transversely Polarized Gas Target Induced by High Energy e-Beam[J]. Chinese Physics C, 2006, 30(9): 892-895.

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Received: 2005-12-06
Revised: 2006-02-06

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

Research on Depolarization of Transversely Polarized Gas Target Induced by High Energy e-Beam

Corresponding author: MAO Ya-Jun,

School of Physics, Peking University, Beijing 100871, China2 China Institute of Atomic Energy, Beijing 102413, China3 University of Science and Technology of China, Hefei 230026, China4 Department of Physics, University of Illinois, Urbana, Illinois 61801, USA5 Desy, Deutsches Elektronen-Synchrotron, 22603 Hamburg, Germany6 Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara and Dipartimento di Fisica, Universit\`{a} di Ferrara, 44100 Ferrara, Italy7 Physikalisches Institut, Universit\

Received Date: 2005-12-06
Accepted Date: 2006-02-06
Available Online: 2006-09-05

Abstract: High frequency electromagnetic fields induced by high-energy e-beam can cause resonance depolarization of the HERMES transversely polarized gas target. This paper presents the research results on the mechanism of depolarization and the position where resonance σ₂₄ takes place. About 3% depolarization has been saved after avoiding such resonance by fixing the magnet field far from resonance position according to the measured results.