摘要
Glass cells play an important role in polarized 3He neutron spin filters. To evaluate the scattering and absorption contribution from glass cells during neutron scattering experiments, we measured small-angle scattering and neutron transmission in GE180 and other glasses. The small-angle neutron scattering measurements revealed that the glasses used for 3He spin filters have acceptably lower scattering: dΣ(Q)/dΩ=47×10 -4 cm-1 at Q=0.030.12 Å-1. The transmission measurement was performed at J-PARC. Neutron transmission of about 92% through empty GE180 cells was observed over a wide wavelength range 0.0147.0 Å. To pursue the possibility of being a structural influence on 3He spin relaxation in GE180 glass cells, we performed precise X-ray diffraction measurement using synchrotron radiation at SPring-8. From these measurements, a structural difference was observed among GE180 glasses with different thermal treatments.
| 原文 | English |
|---|---|
| 頁(從 - 到) | 2443-2447 |
| 頁數 | 5 |
| 期刊 | Physica B: Condensed Matter |
| 卷 | 406 |
| 發行號 | 12 |
| DOIs | |
| 出版狀態 | Published - 2011 6月 |
All Science Journal Classification (ASJC) codes
- 電子、光磁材料
- 凝聚態物理學
- 電氣與電子工程
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