高純度ヨウ化ナトリウムの結晶育成

DOI

書誌事項

タイトル別名
  • Crystal growth of high-purity NaI(Tl)

説明

<p>  Highly radiopure NaI(Tl) crystal has been developed to investigate cosmic dark matter. The dark matter problem is one of the essential subjects in particle physics and cosmology. Despite the many null results in the dark matter search, one group (DAMA/LIBRA) reported a significant annual modulation in the energy spectrum, which can be interpreted as the dark matter signal. This unknown signal must be a purer NaI(Tl) crystal. The PICOLON project has developed a highly radiopure NaI(Tl) crystal. They purified the NaI(Tl) crystal with combined methods; re-crystallization and resin. The 40K were effectively removed from the NaI by the re-crystallization method. On the other hand, they successfully removed 210Pb by selecting the appropriate resin. The concentration of radioactive impurities in their NaI(Tl) crystal reached below their goals.</p>

収録刊行物

詳細情報 詳細情報について

  • CRID
    1390294949467369984
  • DOI
    10.19009/jjacg.49-4-03
  • ISSN
    21878366
    03856275
  • 本文言語コード
    ja
  • データソース種別
    • JaLC
  • 抄録ライセンスフラグ
    使用不可

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