液闪三双符合比方法测量99Tc放射性活度
액섬삼쌍부합비방법측량99Tc방사성활도
Standardization of 99 Tc by the Triple-to-double Coincidence Ratio (TDCR) Method of Liquid Scintillation Counting
  • 万方数据
    核电子学与探测技术 핵전자학여탐측기술
    NUCLEAR ELECTRONICS & DETECTION TECHNOLOGY
    2014年 4期 517-520 ,共4页

    吴永乐%刘浩然%柳加成%李宏宇%梁珺成%熊文俊%姚顺和%陈细林%杨元第%袁大庆

    오영악%류호연%류가성%리굉우%량군성%웅문준%요순화%진세림%양원제%원대경

    液闪计数器%三双符合比方法%99 Tc%放射性活度 液閃計數器%三雙符閤比方法%99 Tc%放射性活度
    액섬계수기%삼쌍부합비방법%99 Tc%방사성활도
    liquid scintillation counter%the TDCR method%99 Tc%radioactivity
    液闪三双符合比（ TDCR）方法采用3个光电倍增管对称放置的液闪计数器，利用三管符合和三对两管符合的计数计算液闪探测效率，从而得到放射性活度，不需要使用标准源对仪器进行效率刻度，是一种放射性活度绝对测量方法。由于具有无自吸收、制源简单、操作简便、一致性好等优点，已广泛应用于纯β衰变核素放射性活度的测量。介绍了液闪TDCR方法的基本原理和液闪TDCR活度测量装置，并绝对测量了纯β衰变核素99 Tc放射性活度，测量不确定度小于0．3％。
    액섬삼쌍부합비（ TDCR）방법채용3개광전배증관대칭방치적액섬계수기，이용삼관부합화삼대량관부합적계수계산액섬탐측효솔，종이득도방사성활도，불수요사용표준원대의기진행효솔각도，시일충방사성활도절대측량방법。유우구유무자흡수、제원간단、조작간편、일치성호등우점，이엄범응용우순β쇠변핵소방사성활도적측량。개소료액섬TDCR방법적기본원리화액섬TDCR활도측량장치，병절대측량료순β쇠변핵소99 Tc방사성활도，측량불학정도소우0．3％。
    The triple-to-double coincidence ratio ( TDCR) method is a kind of primary measurement method of radioactivity ,requiring the use of a liquid scintillation counter equipped with of 3 photomultiplier tubes .The counting efficiency calculated through the triple coincidence count and 3 double coincidence counts .Due to its advantages in simple sample preparation , no self-absorption and good consistency , the TDCR method is a pop-ular technique for the standardization of pure beta radionuclides .The principle of TDCR method is described in this paper .And a sample of 99 Tc is calibrated in term of specify activity on the newly established TDCR system with uncertainty within 0.3%.
    원문보기 원문다운로드 사이트로이동
저자의 최근 논문