Excitation of 8.85 d <sup>129m</sup>Xe and 11.9 d <sup>131m</sup>Xe by <sup>60</sup>Co irradiation
N C Tam; A Veres; I Pavlicsek; L Lakosi; N C Tam; Inst. of Isotopes of the Hungarian Acad. of Sci., Budapest, Hungary; A Veres; Inst. of Isotopes of the Hungarian Acad. of Sci., Budapest, Hungary; I Pavlicsek; Inst. of Isotopes of the Hungarian Acad. of Sci., Budapest, Hungary; L Lakosi; Inst. of Isotopes of the Hungarian Acad. of Sci., Budapest, Hungary
Журнал:
Journal of Physics G: Nuclear and Particle Physics
Дата:
1990-08-01
Аннотация:
The <sup>129</sup>Xe( gamma , gamma ')<sup>129m</sup>Xe and <sup>131</sup>Xe( gamma , gamma ')<sup>131m</sup>Xe reactions have been studied by irradiation in a facility containing a 7.4 PBq (200 kCi) <sup>60</sup>Co source. The <sup>129m</sup>Xe and <sup>131m</sup>Xe isomers have been identified and the isomeric activities have been compared with that of indium irradiated under similar conditions. The integral cross sections for <sup>129m</sup>Xe and <sup>131m</sup>Xe production have been determined relative to the known value of <sup>115m</sup>In and found to be (7.5+or-2.0)*10<sup>-26</sup> and (2.5+or-0.8)*10<sup>-26</sup> cm<sup>2</sup> eV, respectively, by adopting (19+or-1)*10<sup>-26</sup> cm<sup>2</sup> eV for <sup>115m</sup>In production.
328.6Кб