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The Effect of Impurities On The Radiation Damage of Barium Fluoride Crystal

Published online by Cambridge University Press:  21 February 2011

Shaoxia Ren
Affiliation:
Beijing Glass Research Institute, Chong Wen Men Wai, Beijing 100062, China
Gang Chen
Affiliation:
Beijing Glass Research Institute, Chong Wen Men Wai, Beijing 100062, China
Fengyin Zhang
Affiliation:
Beijing Glass Research Institute, Chong Wen Men Wai, Beijing 100062, China
Yanning Zheng
Affiliation:
Beijing Glass Research Institute, Chong Wen Men Wai, Beijing 100062, China
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Abstract

Different impurities influence the radiation damage of barium fluoride (BaF2 )crystal in different ways. Stable metal elements, such as alkali elements and alkali earth elements, have no effect on the radiation resistance. Most transtion metal elements areharmful to the radiation resistance. There are three kinds of effects of rare earth elements. Stable trivalence elements, such as Y, La and Lu, have no effect on the radiation resistance, while the elements which changes its valence from +3 to +4 under irradiation, such as Ce and Pr, are harmful. The elements which changes its valence from +3 to +2 underirradiation, such as Sm,Eu,Dy and Yb, are useful in eliminating color centers in visible range. Oxygen and hydroxyl ions which were introduced into the crystal from the raw material of BaF2 or a low vacuum during crystal growing are very harmful to the radiation resistance. The formation of “Complex Color Centers” is considered as the cause of the radiation damage of BaF2 crystal in this paper.

Type
Research Article
Copyright
Copyright © Materials Research Society 1994

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References

REFERENCES

1. Lavel, M. et al. ,Nucl. Instr. and Meth., A206, 169(1983).Google Scholar
2. Murashita, M., Saitoh, H. et al. ,Nucl. Instr. and Meth., A243, 67(1986).10.1016/0168-9002(86)90822-3Google Scholar
3. Schotanus, P. et al. ,Nucl. Instr. and Meth., A259, 586(1987)10.1016/0168-9002(87)90845-XGoogle Scholar
4. Schotanus, P., Eijk, C.W.E. van et al. , IEEE-NS, 34, 76(1987)Google Scholar
5. , Kobayashi et al. ,Nucl. Instr. and Meth., A270, 106(1988)Google Scholar
6. Zhu, R.Y.,“Physics of BaF2 EMC in the SSC”,BaF 2 workshop,Shanghai,1991.Google Scholar
7. Zhu, R.Y.,“On Quality Requirements to the BaF2 Crystals”, GEM TN-92-48.Google Scholar
8. Gorlich, P., Karras, H. and Lehmann, R.,Phys. Status Solidi, 1, 389(1961)Google Scholar
9. Arends, J., Phys. Status Solidi, 7, 805(1964)Google Scholar
10. Beaumont, J.H. et al. , Phys. Status Solidi,57, 693(1973)Google Scholar
11. Hartog, H.W. Den,Phys. Status Solidi, 25, K111(1968)Google Scholar
12. Chakraborty, P.K. et al. ,Cryst. Latt. Def. Amorph. Mater., 10, 67(1983)Google Scholar
13. Subrahmanyam, A. and Rao, K.V.,Phys. Status Solidi, 52, K147(1979)10.1002/pssa.2210520254Google Scholar
14. Chen, G. et al. ,“Radiation Damage of Barium Fluoride Scintillator”, BaF2Panel meeting, Beijing, December, 1991 Google Scholar
15. Chen, G. et al. , in Supercollider 4,ed J.Note,Plenum Press, 809(1992)Google Scholar
16. Chen, G. et al. , Internal Note, GEM TN-92-78Google Scholar
17. Chen, L.Y., Gu, M., Wang, L.M. et al. , Internal Note, GEM TN-92-129Google Scholar
18. Halliburator, L. et al. , Univ. of West Virginia Report, May,1992 Google Scholar