A comparison of 3He polarization determined by neutron scattering and NMR methods

L. J. Chang, Chih Hao Lee, Hui Chia Su, A. Ioffe, K. Bussmann, S. R. Parnell, S. Boag

研究成果: Article同行評審

摘要

3He was polarized by the spin-exchange optical pumping (SEOP) method. The 3He polarization measured by neutrons was compared to the value obtained by cross calibration with a thermal water signal via nuclear magnetic resonance (NMR). The neutron scattering experiments were performed at a three-dimensional neutron depolarization spectrometer (NDS) based on the design of the instrument labeled LAP-ND of FRJ-2, Germany, constructed and commissioned at the W-3 port of the Tsing Hua Open-Pool Reactor (THOR), Taiwan. The two methods show a reasonable consistency regarding the 3He polarization. This suggests that the NMR method is convenient and reliable for testing the 3He polarization before neutron scattering experiments are performed.

原文English
頁(從 - 到)159-165
頁數7
期刊Chinese Journal of Physics
47
發行號2
出版狀態Published - 2009 四月

All Science Journal Classification (ASJC) codes

  • 物理與天文學 (全部)

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