Title :
Energy compensated solid state gamma dosimeter
Author :
Sinclair, F. ; Clapp, A. ; Entine, G. ; Kronenberg, S.
Author_Institution :
RMD, Watertown, MA, USA
Abstract :
An analytical model of the detector response for a p-i-n diode has been developed and tested with monoenergetic isotopic sources. The model was then used to simulate the detector response over a wide range of photon energies. This matrix was used in turn to calculate a pulse-height correction factor. Irradiation of the device in a variable-energy X-ray beam showed that while there are some fundamental limitations, this approach can improve the accuracy of the measurement of the dose delivered to tissue.<>
Keywords :
dosimeters; gamma-ray detection and measurement; semiconductor counters; semiconductor diodes; analytical model; detector response; energy compensated solid state gamma dosimeter; monoenergetic isotopic sources; p-i-n diode; photon energies; pulse-height correction factor; variable-energy X-ray beam; Analytical models; Atomic measurements; Dosimetry; Instruments; Pulse measurements; Radiation detectors; Silicon; Solid state circuits; X-ray detection; X-ray detectors;
Journal_Title :
Nuclear Science, IEEE Transactions on
