A method is introduced for the evaluation of x-ray spectra from x-ray machines operating in the range 50-100 kVp using a cadmium telluride (CdTe) detector with low detection efficiency. The pulse height distribution obtained with this kind of detector does not represent the true photon spectra owing to the presence of K-escape, Compton scattering, etc.; these effects were evaluated using a Monte Carlo method. A stripping procedure is described for implementation on a Univac 1100/82 computer. The validity of the authors' method was finally tested by comparison with experimental results obtained with a Ge detector and with data from the literature; the results are in good agreement with published data.
The use of cadmium telluride detectors for the qualitative analysis of diagnostic x-ray spectra / DI CASTRO, Elisabetta; Pani, Roberto; Pellegrini, Rosanna; C., Bacci. - In: PHYSICS IN MEDICINE AND BIOLOGY. - ISSN 0031-9155. - STAMPA. - 29:9(1984), pp. 1117-1131. [10.1088/0031-9155/29/9/008]
The use of cadmium telluride detectors for the qualitative analysis of diagnostic x-ray spectra
DI CASTRO, Elisabetta;PANI, Roberto;PELLEGRINI, Rosanna;
1984
Abstract
A method is introduced for the evaluation of x-ray spectra from x-ray machines operating in the range 50-100 kVp using a cadmium telluride (CdTe) detector with low detection efficiency. The pulse height distribution obtained with this kind of detector does not represent the true photon spectra owing to the presence of K-escape, Compton scattering, etc.; these effects were evaluated using a Monte Carlo method. A stripping procedure is described for implementation on a Univac 1100/82 computer. The validity of the authors' method was finally tested by comparison with experimental results obtained with a Ge detector and with data from the literature; the results are in good agreement with published data.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
