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Xenon isotope record of nucleosynthesis and the early solar system

机译:氙原子核合成和早期太阳系的记录

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摘要

ISOTOPIC abundances of Xe were determined as two FeS separates of the Allende (C3V) carbonaceous chondrite were heated, stepwise. A tracer Xe isotope was first produced in one sample by ~(130)Te(n, γ 2β~- ) ~(131r)Xe reaction to monitor the degassing of Xe from the sample. The FeS melted at 950°C , releasing a spike of ~(131r)Xe and terrestrial-type Xe, Xe-T. This confirms that trapped Xe in Allende's FeS is indeed Xe-T, which is also in the atmospheres of the earth and Mars, in the sun, and in FeS of diverse meteorites.
机译:当逐步加热阿连德(C3V)碳质球粒陨石的两个FeS分离物时,确定Xe的同位素丰度。首先通过〜(130)Te(n,γ2β〜-)〜(131r)Xe反应在一个样品中产生示踪剂Xe同位素,以监测Xe从样品中的脱气。 FeS在950°C熔化,释放出〜(131r)Xe和地面型Xe Xe-T的尖峰。这证实了被困在阿连德的FeS中的Xe确实是Xe-T,它也存在于地球和火星的大气中,在阳光下以及在各种陨石的FeS中。

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