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Standardization of 109Cd by two methods
Ming-Chen Yuan1, Yi-Chun Lin1, Wei-Han Chu1
1Health Physics Division, Institute of Nuclear Energy Research, No. 1000 Wenhua Rd. Jiaan Village, Longtan District, Taoyuan City 32546, Taiwan (ROC).
Abstract:
109Cd is quite a useful nuclide for the calibration of X-ray spectroscopy, gamma-ray spectroscopy or as an excitation source in X-ray fluorescence. In this work, 4π(PC)e-X coincidence counting and 4π(LS)ce counting were used to determine the activity of the 109Cd solution. The two methods showed good agreement in their counting results. On the other hand, the mean value came from the results of the two methods was used to calibrate the well type ionization chambers to maintain the radioactivity measurement standard of 109Cd at INER.
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