【摘要】 本文测定了醋酸纤维素径迹探测器(上海感光胶片厂生产)记录α粒子的能量上限及质子和氘核的能量范围和效率。用质子、氘核和α粒子进行实验,检验了Benton提出的限定能量损失模型,结果表明这种模型适用于这一探测器记录轻粒子的情况。探测器记录上述三种轻粒子时,它们的蚀刻速度比和剩余射程呈一定的函数关系,因此可以用来鉴定轻粒子。更多还原

【Abstract】 In this paper, the recording energy range and efficiency of cellulose acetate trackdetector (made by Shanghai Film Works) to proton and deuteron registration were de-termined, and the upper limit of recording energy to α-particle registration was dete-rmined too The highest energies of α-particle, proton and deuteron registrated are11.7, 0.8 and 1.35 MeV respectively. At a certain removed layer thickness range, theefficiencies of vertical incident protons with energy 400--900 keV and deuterons withenergy 450--1350 keV registrated are all 100%. The model of restricted energy lossproposed by Benton was tested for the sensitive cellulose acetate track detector usingprotons, deuterons and alpha particles. It is shown that. the model may be applied tolight particle registrations. For these light particle registrations by the detector, thereis a functional relation between the etching rate ratios and ranges, thetefore, it maybe used to identify light particles.更多还原