So far accelerator mass spectrometry （AMS） technique has been used for the determination of numbers of important long-lived radioisotopes, such as <sup>10</sup>Be, <sup>14</sup>C, <sup>...So far accelerator mass spectrometry （AMS） technique has been used for the determination of numbers of important long-lived radioisotopes, such as <sup>10</sup>Be, <sup>14</sup>C, <sup>26</sup>Al, <sup>36</sup>Cl, <sup>41</sup>Ca and <sup>129</sup>I, in their applications of geoscienee, environmental science, archaeology and biomedical research. It is interesting to determine <sup>79</sup>Se with AMS technique for its potential application in biomedical research and environmental science presently. The published half-life values of <sup>79</sup>Se are more than 2 orders of magnitude apart, ranging from 10<sup>3</sup> to 10<sup>6</sup> a. The uncertainty of the half life has been an obstacle to the <sup>79</sup>Se application as a tracer. Selenium is one of the impor-展开更多
文摘So far accelerator mass spectrometry （AMS） technique has been used for the determination of numbers of important long-lived radioisotopes, such as <sup>10</sup>Be, <sup>14</sup>C, <sup>26</sup>Al, <sup>36</sup>Cl, <sup>41</sup>Ca and <sup>129</sup>I, in their applications of geoscienee, environmental science, archaeology and biomedical research. It is interesting to determine <sup>79</sup>Se with AMS technique for its potential application in biomedical research and environmental science presently. The published half-life values of <sup>79</sup>Se are more than 2 orders of magnitude apart, ranging from 10<sup>3</sup> to 10<sup>6</sup> a. The uncertainty of the half life has been an obstacle to the <sup>79</sup>Se application as a tracer. Selenium is one of the impor-
