【摘要】 本文介绍了一种简易的、用单管液体闪烁计数器测定¹⁴C、³⁵S 的衰变率的方法。改变透光率,测得一组不同斜率和外推值的积分偏压曲线,再将这些积分偏压曲线的载距对其斜率作图,并外推到斜率为零,相应的计数率即为所求的衰变率。更多还原

【Abstract】 A simple method for determining the disintegration rate of¹⁴C,³⁵S by using liquid scintillation counter is presented, A series of integral bias curves with different slope and extrapolation value was obtai-ned by increasing the light transmission from sample to photo-multiplier.Then the photoelectron yield curve was extrapolated to zero slope and thecorresponding counting rate would be the required disintegration rate.更多还原