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A Study on the Germanium Radiation Detector Compensated by Gamma-ray Irradiation

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Moon P.S.,
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 ( Moon P.S. ) 
The Korea Atomic Energy Research Institute

Abstract

nÇü Ge °áÁ¤Ã¼¸¦ º¸»óÇϱâ À§ÇØ »ó¿Â¿¡¼­ ^(60)Co °¨¸¶¼±À¸·Î 647 Mrad Á¶»çÇÏ¿´´Ù. °¨¸¶¼±À¸·Î Á¶»çµÈ Ge °áÁ¤Ã¼·Î Ge(¥ã) °ËÃâ±â¸¦ Á¦ÀÛÇÏ¿´´Ù. Ge(¥ã) °ËÃâ±âÀÇ °ËÃâ±â Ư¼ºÀº ¾ãÀº Ge(Li) °ËÃâ±â³­ °í¼øµµ Ge °ËÃâ±â¿Í ºñ½ÁÇÏ¿´´Ù. Ge(¥ã) °ËÃâ±âÀÇ ¿Âµµ¿¡ ´ëÇÑ ¾ÈÁ¤µµ´Â »ó¿Â¿¡¼­ÀÇ ÀúÀåÀÌ °¡´ÉÇÔÀ» º¸¿© ÁÖ¾ú´Ù.
The n-type germanium crystals have been irradiated by 80Co gamma-ray with 647 Mrad at room temperature for compensation. The Ge (r) detectors were fabricated from the gamma-ray irradiated germanium single crystals. The detector characteristics of the Ge(r) detectors were comparable to those of thin Ge(Li) detectors and high purity germanium detectors. The thermal stability of the Ge (r) detector showed a feasibility for ambient temp(r)ture storage.

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