A double focusing mass spectrometer for geochronology

被引：132

作者：

De Laeter, JR ^{[1
]}

Kennedy, AK ^{[1
]}

机构：

[1] Curtin Univ Technol, Dept Appl Phys, Perth, WA 6001, Australia

来源：

INTERNATIONAL JOURNAL OF MASS SPECTROMETRY | 1998年 / 178卷 / 1-2期

关键词：

D O I：

10.1016/S1387-3806(98)14092-7

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

The performance characteristics of a double focusing mass spectrometer designed specifically for geochronology are described. The sensitive high resolution ion micro probe (SHRIMP II) mass spectrometer is ideally suited for in-situ analysis of uranium and/or thorium-bearing minerals to provide geochronological information on micron-sized domains of the minerals. SHRIMP II simultaneously meets the requirements of high mass resolution and high ion transmission efficiency together with good abundance sensitivity. SHRIMP II's excellent spatial and mass resolution, coupled with its high sensitivity, has enabled zircon geochronology to be revolutionized. (Int J Mass Spectrom 178 (1998) 43-50) (C) 1998 Elsevier Science B.V.

引用

页码：43 / 50

页数：8

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