Abstract
The development of a dose reader for the measurement of the radiation dose from neutron and ionizing radiation is presented. The dose reader (kerma meter) is using as active element commercial PIN diodes with long base, which can provide a maximal dependence of the lifetime of minority carriers from the absorbed dose. We consider a simple theory of PIN diodes for the role of the kerma meter and discuss the idea for optimization of the calibration procedure. The characteristics of the dosimeter were measured for a few types of commercial diodes. The device can be useful for many practical tasks of control for radiation environments in the environment, nuclear physics and for industrial application.
Highlights
PIN diodes are used since 1959 [1] as device for the measurement of doses from fast neutrons and charged particles
The dose reader is using as active element commercial PIN diodes with long base, which can provide a maximal dependence of the lifetime of minority carriers from the absorbed dose
In this article we describe a dosimeter, which by measuring the forward voltage on the PIN diode for a given constant current with changing time pulse width during irradiation is keeping the same value of dissipation of energy
Summary
PIN diodes are used since 1959 [1] as device for the measurement of doses from fast neutrons and charged particles. The control parameters are temperature, the time interval after irradiation of the diode and the parameters of the test signal (the amplitude of the current and the pulse width). In this article we describe a dosimeter, which by measuring the forward voltage on the PIN diode for a given constant current with changing time pulse width during irradiation is keeping the same value of dissipation of energy.
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