| Original Articles |
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Secondary Extinction in Cylindrical and Spherical Crystals for
X-Ray and Neutron Diffraction |
| HU Hua-Chen1;SHEN Cai-Wan2;
LI Zhao-Huan1;QIAO Ying 3
YANG Bin1 |
| 1China Institute of Atomic Energy, P.O.Box 275(18), Beijing 102413
2Institute of Theoretical Physics, Chinese Academy of Sciences,Beijing 100080
3Department of Applied Mathematics, Australian National University, Canberra 0200, Australia |
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| Cite this article: |
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HU Hua-Chen, SHEN Cai-Wan, LI Zhao-Huan et al 2001 Chin. Phys. Lett. 18 74-76 |
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Abstract The distribution of the reflection power ratio for a neutron or x-ray diffracted from a cylindrical crystal immersed in an homogenous incident beam is obtained by the numerical solution of the transfer equations for the first time. The profile well reflects all the physical properties of the absorption and extinction behaviour in the crystals. A systematic investigation of the secondary extinction for cylindrical and spherical crystals was carried out based on these results.
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| Keywords:
61.10.Dp
61.12.Bt
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Published: 01 January 2001
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