Bohm extrapolation chamber: Study of its behavior in beta radiation fields at the Calibration Laboratory of IPEN

被引：8

作者：

Antonio, Patricia L. ^{[1
]}

Xavier, Marcos ^{[1
]}

Caldas, Linda V. E. ^{[1
]}

机构：

[1] IPEN CNEN SP, Comissao Nacl Energia Nucl, Inst Pesquisas Energet & Nucl, BR-05508000 Sao Paulo, Brazil

来源：

RADIATION PHYSICS AND CHEMISTRY | 2014年 / 104卷

关键词：

Bohm extrapolation chamber; Sr-90+Y-90 sources; Characterization tests; Aluminized Mylar; Hostaphan;

D O I：

10.1016/j.radphyschem.2014.04.035

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The Calibration Laboratory (LCI) at the Instituto de Pesquisas Energeticas e Nucleares (IPEN) is going to establish a Bohm extrapolation chamber as a primary standard system for the dosimetry and calibration of beta radiation sources and detectors. This chamber was already tested in beta radiation beams with an aluminized Mylar entrance window, and now, it was characterized with an original Hostaphan entrance window. A comparison between the results of the extrapolation chamber with the two entrance windows was performed. The results showed that this extrapolation chamber presents the same effectiveness in beta radiation fields as a primary standard system with both entrance windows, showing that any one of them may be utilized. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：310 / 315

页数：6

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