Recent Bremsstrahlung-based assays of 210Pb in lead and comments on current availability of low-background lead in North America

被引：5

作者：

Keillor, Martin E. ^{[1
]}

Aalseth, C. E. ^{[1
]}

Arnquist, I. J. ^{[1
]}

Eggemeyer, T. A. ^{[1
]}

Fuller, E. S. ^{[1
]}

Glasgow, B. D. ^{[1
]}

Hoppe, E. W. ^{[1
]}

Morley, S. M. ^{[1
]}

Myers, A. W. ^{[1
]}

Orrell, J. L. ^{[1
]}

Overman, C. T. ^{[1
]}

Seifert, A. ^{[1
]}

Shaff, S. M. ^{[1
]}

Thommasson, K. S. ^{[1
]}

机构：

[1] Pacific Northwest Natl Lab, POB 999,MSIN J4-65, Richland, WA 99352 USA

来源：

APPLIED RADIATION AND ISOTOPES | 2017年 / 126卷

关键词：

Low background; Gamma spectroscopy; Lead; Bremsstrahlung; Bi-210; Pb-210;

D O I：

10.1016/j.apradiso.2017.03.001

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Low-background lead for radiation measurement shielding is often assayed for Pb-210 to ensure acceptable backgrounds. Samples of lead assayed with a germanium spectrometer calibrated for bremsstrahlung-based assay of Pb-210 provide a view into the Pb-210 content of commercial lead in the U.S. (other than stockpiled Doe Run lead). Results suggest that the loss of lead smelting in the U.S. has eliminated the traditional supply of "low background" lead (similar to 30 Bq kg(-1)), and indicate current commercial supplies contain roughly an order of magnitude higher Pb-210 levels.

引用

页码：185 / 187

页数：3