الفهرس 
The Formation of Particle TracksOnly 14 pages are availabe for public view
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Abstract
In this work, solid state nuclear track detectors (SSNTDs) [CR-39, CN-85] were used in charged particle identifications and dose determination.
CR-39 were used in the registration of fast neutron induced protons tracks as
a result of neutron interaction with the constitute atoms of the detector CR-
39 etching conditions of 6N NaOH at 600C were used which lead to a value
of VB ≈ 0.9 µm/h and registration efficiency better than 90%. CR-39
characterizations were carried out through detailed studies which relate
alpha energies with both track diameter and critical angle of etching at
different removal layers. Induced proton track density (ρ) was studied with
etching times at various fast neutron doses (D) from 1.54 up to ≈ 44 mSv
and exponentially dependence between ρ and D was found at h ≈ 11µm and
given by : D = 1.27 e 0.067 ρ . An empirical formula to relate proton energy,
Ep and its (dE/dx)p in CR-39 was found to be; 518 . 1 ) / ( 031 . 170 − = p p dx dE E .