Actions for Proof-of-concept development of PXAMS (projectile x-ray accelerator mass spectrometry) [electronic resource].

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Proof-of-concept development of PXAMS (projectile x-ray accelerator mass spectrometry) [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy, 1996.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
16 pages : digital, PDF file
Additional Creators
Lawrence Livermore National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
Prior to the current work, accelerator mass spectrometry (AMS) was limited to a set of ∼8--10 isotopes. This limitation is caused primarily by the inability to discriminate against stable atomic isobars. An analysis scheme that combines the isotopic sensitivity of AMS with similar isobar selectivity would open a large new class of isotope applications. This project was undertaken to explore the use of characteristic x rays as a method for the detection and identification of ions,and to allow the post-spectrometer rejection of isobaric interferences for isotopes previously inaccessible to AMS. During the second half of FY94 (with Advanced Concepts funding from the Office of Non-Proliferation and National Security), we examined the feasability of this technique, which we are referring to as PXAMS (Projectile X ray AMS), to the detection of several isotopes at Lawrence Livermore National Laboratory (LLNL). In our first exploratory work, we measured the x ray yield vs energy for ⁸°Se ions stopped in a thick Y target. These results, demonstrated that useful detection efficiencies could be obtained for Se ions at energies accessible with our accelerator, and that the count rate from target x rays is small compared to the Se Kα rate. We followed these measurements with a survey of x ray yields for Z = 14-46.
Report Numbers
E 1.99:ucrl-id--123620
ucrl-id--123620
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
03/01/1996.
"ucrl-id--123620"
"DE96008733"
Roberts, M.L.; McAninch, J.E.; Bench, G.S.; Proctor, I.D.
Funding Information
W-7405-ENG-48
View MARC record | catkey: 14355641