发明名称 |
MASS SPECTROMETER |
摘要 |
The invention is directed to a method for increasing the precision of positive-ion relative abundance measurements conducted in a sector mass spectrometer having an ion source for directing a beam of positive ions onto a collimating slit. The method comprises incorporating in the source an electrostatic lens assembly for providing a positive-ion beam of circular cross section for collimation by the slit. |
申请公布号 |
AU1258683(A) |
申请公布日期 |
1983.11.03 |
申请号 |
AU19830012586 |
申请日期 |
1983.03.18 |
申请人 |
UNITED STATES DEPARTMENT OF ENERGY |
发明人 |
PETER J. TODD;HENRY S. MCKOWN;DAVID H. SMITH |
分类号 |
H01J49/10;G01N27/62;H01J49/06 |
主分类号 |
H01J49/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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