Effective atomic number of some rare earth compounds determined by the study of external bremsstrahlung

Manjunatha, M. V. and Umesh, T. K. (2015) Effective atomic number of some rare earth compounds determined by the study of external bremsstrahlung. JOURNAL OF RADIATION RESEARCH AND APPLIED SCIENCES, 8 (3). pp. 428-432. ISSN 1687-8507

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Official URL: https://doi.org/10.1016/j.jrras.2015.03.005

Abstract

In this paper we report the effective atomic number (Z(eff)) of some rare earth compounds determined from the measured external bremsstrahlung (EB) intensity due to the incident beta particles emitted by the Sr-90-Y-90 source. For this purpose the two sample method evolved recently by the authors was employed. A high purity germanium detector was used in the present study to improve the resolution of the detection system. The constants lnK, n, C and D for the present geometry and the detector were determined by using the EB intensity measured for the elemental foils Al, Cu, Ag, Sn and Pb of varying thickness. The Z(eff) values obtained were in good agreement with the Z(mod) values given by the theoretical expression of Markowicz and Van Grieken. Possible conclusions are drawn based on the present study. Copyright (C) 2015, The Egyptian Society of Radiation Sciences and Applications. Production and hosting by Elsevier B.V. This is an open access article under the CC BY-NC-ND license.

Item Type: Article
Uncontrolled Keywords: External bremsstrahlung; HPGe detector; Rare earth compounds; Two sample method; Effective atomic number
Subjects: D Physical Science > Physics
Divisions: Department of > Physics
Depositing User: Shrirekha N
Date Deposited: 03 Jun 2019 10:30
Last Modified: 03 Jun 2019 10:30
URI: http://eprints.uni-mysore.ac.in/id/eprint/2114

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