塑料闪烁体薄膜对~(14)C和~3H测量技术的研究

MEASUREMENT OF 14C and 3H RADIOACTIVITY BY PLASTIC SCINTILLA-TOR FILM.

摘要: <正> 液体闪烁计数技术在放射性同位素测量技术中广泛应用的今无,世界上大约有15000～20000台液体闪烁谱仪,每年产生(2～3)×10~6升放射性废液。许多闪烁瓶的洗涤也是问题。本文介绍了用塑料闪烁体薄膜测定低能β辐射体~(14)C及~9H的方法。以聚苯乙烯为主的塑料闪

Abstract: In using a method with plastic scintillator film instead of theliquid scintillator solution, the 14C counting level is about the same as that of L.S.C., but the 3H counting level is 64.5% higher than that of L.S.C. .This method has the additional advantage that there is no need to wash the vial and no waste solution is produced.