固体飛跡検出器CR-39におけるAgingとFadingの影響 Aging and Fading Effects on Registration Properties for Nuclear Tracks in CR-39

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著者

    • 榎本 宏子 ENOMOTO Hiroko
    • 放射線医学総合研究所内部被ばく・防護研究部 Division of Radiotoxicology and Protection, National Institute of Radiological Sciences
    • 石榑 信人 ISHIGURE Nobuhito
    • 放射線医学総合研究所内部被ばく・防護研究部 Division of Radiotoxicology and Protection, National Institute of Radiological Sciences

抄録

The effect of storage on the track registration property of CR-39 has been studied. Pieces of CR-39 plate were irradiated with normally incident α particles and fission fragments by using a <sup>252</sup>Cf source before and after their storage in air for one to six months at different temperatures of -80°C, -23°C, 4°C, 23°C and 35°C. The bulk etch rate and α-track sensitivity were obtained from the etch pit diameters of α and fission tracks. It was shown that the bulk etch rate and the α-track sensitivity both tend to decrease during storage time and from the effect of storage temperatures. The most significant effect was observed on α-track sensitivity at 35°C, which was reduced 55% for six months. It was also shown that the storage effect is attributed not to a fading of latent tracks, but to changes in the detector itself.

収録刊行物

  • 保健物理 : hoken buturi  

    保健物理 : hoken buturi 33(4), 407-413, 1998-12-01 

    Japan Health Physics Society

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各種コード

  • NII論文ID(NAID)
    10002137482
  • NII書誌ID(NCID)
    AN00228458
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    03676110
  • NDL 記事登録ID
    108494
  • NDL 雑誌分類
    ZN36(科学技術--原子力工学・工業) // ZS45(科学技術--医学--放射線医学)
  • NDL 請求記号
    Z16-696
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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