钍水离子存在下金纳米粒子在laser辐照下核反应的引发
Initiation of nuclear reactions under laser irradiation of Au nanoparticles in the presence of Thorium aqua-ions
摘要：
实验研究了在Th（NO3）4（~（232）Th）水溶液中悬浮的Au纳米粒子在激光照射下引发钍核的核反应。结果发现，反应途径取决于水，无论是H2O或D2 O，激光曝光进行。分别用气态H2或D2饱和液体（H2O或D2 O）增强了激光照射下的核反应，允许它们在低至1010 W/cm 2的峰值强度下激发。在激光照射数小时结束后，观察到探针的增强的γ活性。
英文摘要：
Initiation of nuclear reactions in Thorium nuclei is experimentally studied under laser exposure of Au nanoparticles suspended in the aqueous solution of Th(NO3)4 (232Th). It is found that the reaction pathway depends in which water, either H2O or D2O, the laser exposure is carried out. Saturation of the liquids (H2O or D2O) with gaseous H2 or D2, respectively, enhances the nuclear reactions under laser exposure allowing their excitation at peak intensity as low as 1010 W/cm2. Enhanced gamma-activity of the probe is observed after the end of laser exposure for several hours.
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