Some interferences are often encountered in accelerator mass spectrometry (AMS) measurements, espe-cially for medium-heavy nuclide measurement. It is difficult for online discrimination of the nuclide of interest from...Some interferences are often encountered in accelerator mass spectrometry (AMS) measurements, espe-cially for medium-heavy nuclide measurement. It is difficult for online discrimination of the nuclide of interest from the interfering ones. In order to solve this problem, we developed a method to simulate the experimental spectra of medium-heavy nuclides in AMS measurements. The results obtained from this method are in good agreement with experimental values.展开更多
It has been claimed that the half-life of radioactive nuclides embedded in metals may be significantly affected by the screening of quasi-free electrons provided by the metals,especially at the cryogenic temperature.W...It has been claimed that the half-life of radioactive nuclides embedded in metals may be significantly affected by the screening of quasi-free electrons provided by the metals,especially at the cryogenic temperature.We determine the α-decay half-life values of 210 po in high purity metallic bismuth at 4.2 K and 293 K.The results show that the α-decay half-life of 210Po at T =4.2 K is about (24 ±8)% shorter than that at room temperature.展开更多
基金Supported by the National Natural Science Foundation of China (No.10175094) and the Science Foundation of Guangxi University (X022013)
文摘Some interferences are often encountered in accelerator mass spectrometry (AMS) measurements, espe-cially for medium-heavy nuclide measurement. It is difficult for online discrimination of the nuclide of interest from the interfering ones. In order to solve this problem, we developed a method to simulate the experimental spectra of medium-heavy nuclides in AMS measurements. The results obtained from this method are in good agreement with experimental values.
基金Supported by the National Natural Science Foundation of China under Grant No 10875177.
文摘It has been claimed that the half-life of radioactive nuclides embedded in metals may be significantly affected by the screening of quasi-free electrons provided by the metals,especially at the cryogenic temperature.We determine the α-decay half-life values of 210 po in high purity metallic bismuth at 4.2 K and 293 K.The results show that the α-decay half-life of 210Po at T =4.2 K is about (24 ±8)% shorter than that at room temperature.
