ON BE-10 STANDARDS AND THE HALF-LIFE OF BE-10

被引：85

作者：

MIDDLETON, R ^{[1
]}

BROWN, L ^{[1
]}

DEZFOULYARJOMANDY, B ^{[1
]}

KLEIN, J ^{[1
]}

机构：

[1] CARNEGIE INST WASHINGTON,DEPT TERR MAGNETISM,WASHINGTON,DC 20015

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 1993年 / 82卷 / 03期

关键词：

D O I：

10.1016/0168-583X(93)95987-G

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Using accelerator mass spectrometry, we have made absolute measurements of the ratios of Be-10 to Be-9 in the National Institute of Standards and Technology (NIST) standard reference material SRM 4325, and in material produced by ICN. We obtain for SRM 4325 a value that is 14% higher than that claimed by the NIST (30.6 +/- 1.4 x 10(-12) instead of 26.8 +/- 1.4 x 10(-12), 2sigma uncertainty). Our absolute values for the ratios of Be-10 to Be-9, and the activity measurements of the NIST and ICN, yield values for the half-life of Be-10 of 1.53 +/- 5% and 1.48 +/- 5% Ma, respectively.

引用

页码：399 / 403

页数：5

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