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The local demands for an improved neutron dosimeter have been grown in recent years. This work outlines a design for a dosimeter to measure incident neutron doses with any energy (thermal, intermediate and fast).Moreover this study presents the effect of radiators and converters on the sensitivity of chemically etched CR-39 detectors, as well as the sensitivity of electrochemically etched detectors at different frequencies and applied voltages.

An analytical expression was deduced for calculating the mean depth of ionization, z, in electron probe x-ray microanalysis. The data used were generated from previous Monte Carlo calculations for bulk targets of aluminium, titanium, iron, copper, arsenic, indium, tungsten, gold and lead at normal electron incidence for energies ranging from 10 to 40 keV. The results show that the mean depth pZ depends on the back scattering coefficient, 7, the energy of the incident electron, Eo , the excitation energy of the target atoms, E c , and the target atomic number, 2. In the case of non-normal incidence, it is found that the ratio of the mean depth pZ(a) at an angle of incidence a to the mean depth z(0) at normal incidence varies linearly with cos a and depends only on the atomic number of the target material. The effect of the atomic number of the target on the ionization mean depth was also studied.

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