MegaSIMS: a SIMS/AMS hybrid for measurement of the Sun's oxygen isotopic composition

被引：14

作者：

Mao, Peter H. ^{[1
]}

Burnett, Donald S. ^{[2
]}

Coath, Christopher D. ^{[3
]}

Jarzebinski, George ^{[1
]}

Kunihiro, Takuya ^{[4
]}

McKeegan, Kevin D. ^{[1
]}

机构：

[1] Univ Calif Los Angeles, Dept Earth & Space Sci, Los Angeles, CA 90095 USA

[2] CALTECH, Pasadena, CA 91125 USA

[3] Univ Bristol, Dept Earth Sci, Bristol BS8 1RJ, Avon, England

[4] Okayama Univ, Inst Study Earths Interior, Tottori 6820193, Japan

来源：

APPLIED SURFACE SCIENCE | 2008年 / 255卷 / 04期

关键词：

Solar abundances; Oxygen isotopes; Accelerator-based SIMS;

D O I：

10.1016/j.apsusc.2008.05.175

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

One of the primary objectives of the Genesis sample return mission is to measure the oxygen isotopic composition of the Sun to permil-level precision. The returned samples pose a unique analytical challenge, and around the world, there has been parallel development of several competing techniques to make the oxygen measurement on the Genesis concentrator samples. At UCLA, we have developed a hybrid instrument: a secondary ion mass spectrometer (SIMS) front-end combined with an accelerator mass spectrometer (AMS), whose purpose is to eliminate molecular interferences via dissociation. We describe here the current status of the development of the instrument and the remaining issues to address before we request the Genesis samples for analysis. (C) 2008 Elsevier B. V. All rights reserved.

引用

页码：1461 / 1464

页数：4

共 18 条

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