129I measurements on the 1 MV AMS facility at the Centro Nacional de Aceleradores (CNA, Spain)

被引：19

作者：

Gomez-Guzman, J. M. ^{[1
,2
]}

Lopez-Gutierrez, J. M. ^{[3
]}

Pinto-Gomez, A. R. ^{[1
]}

Holm, E. ^{[4
]}

机构：

[1] Ctr Nacl Aceleradores CNA, Seville 41092, Spain

[2] Univ Seville, Dept Fis Atom Mol & Nucl, Seville 41011, Spain

[3] Univ Seville, Dept Fis Aplicada 1, Escuela Univ Politecn, Seville 41011, Spain

[4] Norwegian Radiat Protect Author, N-1332 Osteras, Norway

来源：

APPLIED RADIATION AND ISOTOPES | 2012年 / 70卷 / 01期

关键词：

AMS; 129-Iodine; CNA; Low-energy AMS; Reference material; ACCELERATOR MASS-SPECTROMETRY; IODINE;

D O I：

10.1016/j.apradiso.2011.07.018

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The AMS system at CNA has been the first 1 MV compact AMS system designed and manufactured by HVE. In this paper we present the experimental set-up for I-129 measurements in this facility. Charge state +3 has been selected at high-energy side and an optimum stripper pressure of 6 x 10(-3) mbar of argon (mass thickness of about 0.15 mu g cm(-2)) has been reached to obtain lowest blank values (I-129/I-127 congruent to 3 x 10(-13)). The measurements of the reference materials provided by the IAEA have demonstrated the viability of this facility to make routine measurements of I-129 at environmental levels. This blank value obtained is enough for the measurement of most environmental samples and comparable with other reported backgrounds obtained in facilities working at higher energies and higher charge states. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：263 / 268

页数：6

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