Development of a detection method for 244Pu by resonance ionization mass spectrometry

被引：5
作者：
Ofan, A. [1 ]
Ahmad, I.
Greene, J. P.
Paul, M.
Savina, M. R.
机构：
[1] Hebrew Univ Jerusalem, Racah Inst Phys, IL-91904 Jerusalem, Israel
[2] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA
[3] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA
来源：
NEW ASTRONOMY REVIEWS | 2006年 / 50卷 / 7-8期
基金：
以色列科学基金会; 美国能源部;
关键词：
Pu-244; supernovae nucleosynthesis; resonance ionization spectroscopy;
D O I：
10.1016/j.newar.2006.06.066
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The long-lived actinide Pu-244 (t(1/2) = 81 Myr) is expected to be present in the Interstellar Medium from fresh r-process nucleosynthesis or in direct ejecta from supernovae. Deposition onto Earth may result in traces of live Pu-244 in suitable reservoirs. We are developing a method for Pu-244 detection based on resonance ionization mass spectroscopy. Using Gd as a proxy, we determine an overall efficiency of 0.5% in conditions applicable to the detection of Pu, and present preliminary results on Pu detection. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：640 / 643
页数：4
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