PARAMETRIC NEUTRON-ACTIVATION ANALYSIS OF SAMPLES GENERATING COMPLEX GAMMA-RAY SPECTRA

被引：16

作者：

SCHMIDT, PF

RILEY, JE

MCMILLAN, DJ

机构：

[1] BELL TEL LABS INC,MURRAY HILL,NJ 07974

[2] NO TRACOR INC,MIDDLETON,WI

来源：

ANALYTICAL CHEMISTRY | 1979年 / 51卷 / 02期

关键词：

D O I：

10.1021/ac50038a009

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The accuracy of multielement quantitative determinations by parametric neutron activation analysis using Fe-Ru flux monitors is compared with that obtained by relative measurements using Standard Reference Materials (SRMs) from NBS. Agreement is good. Isotopes with a large ratio of resonance integral/thermal cross section require empirical correction factors. Deviation of the resonance flux in the reactor reflectors from a 1/E distribution appears responsible for at least part of the necessary corrections. The correction factors were found invariant from reactor to reactor. Molybdenum and certain rare earths can be determined by parametric counting in the presence of comparable amounts of uranium; interference by fission products is eliminated by calculations including the fission yields. © 1979, American Chemical Society. All rights reserved.

引用

页码：189 / 196

页数：8

共 13 条

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