Measurement of the track etch rates along proton and alpha particle trajectories in CR-39 and calculation of the detection efficiency

被引：44

作者：

Dörschel, B ^{[1
]}

Bretschneider, R ^{[1
]}

Hermsdorf, D ^{[1
]}

Kadner, K ^{[1
]}

Kühne, H ^{[1
]}

机构：

[1] Dresden Univ Technol, Dept Phys, Inst Radiat Protect Phys, D-01062 Dresden, Germany

来源：

RADIATION MEASUREMENTS | 1999年 / 31卷 / 1-6期

关键词：

protons; alpha particles; track length; track etch rate; critical angle; detection efficiency;

D O I：

10.1016/S1350-4487(99)00117-1

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

Computation of the neutron response of CR-39 detectors needs to simulate the track formation by neutron induced charged particles taking into account the bulk etch rate and the track etch rate varying along the particle trajectories. The latter one was determined experimentally by track length measurement. The results allowed to derive the relationship between the track etch rate and the restricted energy loss of the charged particles. On this basis, the geometrical track parameters and track etch rates as well as the critical angle of particle incidence could be determined for protons and alpha particles in the energy range from 0.2 to 8.8 MeV. The energy dependence of the critical angle enabled to determine the detection efficiency for a charged particle of given energy and direction.

引用

页码：103 / 108

页数：6

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