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A COMPARISON BETWEEN PROTON AND PHOTON EXCITATION FOR X-RAY-ANALYSIS OF PLASMA

被引：3
作者：
HUDA, W
BEWLEY, DK
机构：
[1] HAMMERSMITH HOSP,DEPT MED PHYS,LONDON W12 0HS,ENGLAND
[2] HAMMERSMITH HOSP,MRC,CYCLOTRON UNIT,LONDON W12 0HS,ENGLAND
来源：
NUCLEAR INSTRUMENTS & METHODS | 1980年 / 177卷 / 2-3期
关键词：
D O I：
10.1016/0029-554X(80)90065-8
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
2 - 3 MeV protons from a Van de Graaff generator were used to irradiate thick dry plasma samples in air. Detection limits substantially below the part per million mass concentration level were obtained for Fe, Zn and Sr. A method of analyzing similar plasma samples using Ag X-ray from a 6 mCi**1**0**9Cd radioisotope source was developed. Criteria for comparing the two modes of excitation were established and a comprehensive comparison performed. The results obtained showed that proton induced X-ray analysis generally yielded superior sensitivities and detection limits for the elements investigated.
引用
收藏
页码：513 / 520
页数：8
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