Abstract
The results achieved with an excitation system developed by using a low power, changeable anode X-ray tube are presented. The X-ray tube was fitted to a vertical Si(Li) spectrometer and supplied by an X-ray power supply developed for low power X-ray tubes. The X-ray yields and detection limits were investigated as a function of tube voltage and current in the range of atomic numbers Z = 13 … 58. The detection limits obtained with the X-ray tube are compared to ones achieved by using Fe-55, I-125 and Am-241 radionuclides. A new detection – excitation system was also constructed consisting of a 45° Si(Li) cryostat and a flexible measuring chamber. The details of this system are also given.
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