Abstract
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.
Original language | English |
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Pages (from-to) | 159-165 |
Number of pages | 7 |
Journal | Chinese Journal of Physics |
Volume | 47 |
Issue number | 2 |
Publication status | Published - 2009 Apr |
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)