Standardisation of 238Pu using four methods of measurement

被引：12

作者：

Johansson, L ^{[1
]}

Altzitzoglou, T ^{[1
]}

Sibbens, G ^{[1
]}

Pommé, S ^{[1
]}

Denecke, B ^{[1
]}

机构：

[1] Commiss European Communities, DG Joint Res Ctr, Inst Reference Mat & Measurements, B-2440 Geel, Belgium

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2003年 / 505卷 / 03期

关键词：

nuclear; radioactivity; standardisation; decay;

D O I：

10.1016/S0168-9002(03)00627-2

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Four independent methods of measurement were used to standardise a Pu-238 solution within the frame of an international key comparison organised by the Bureau International des Poids et Mesures, Sevres: 4pi liquid-scintillation spectrometry, alpha-particle counting at a defined solid angle, alpha spectrometry using a windowless 4pi CsI(Ti)-sandwich spectrometer and a 4pi pressurised proportional counter. The solid sources were prepared by quantitative drop deposition and a special source-drying technique. The weighted mean value of the activity concentration Of Pu-238 was found to be (360.2+/-1.0)kBqg(-1) at the reference date (I April 2001). The measurement methods, the results and the applied corrections are described and discussed. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：699 / 706

页数：8