MEASUREMENT THE EFFECT OF γ-IRRADIATION DOSES ON AlCu8.5 BY POSITRON ANNIHILATION DOPPLER-BROADENING SPECTROSCOPY

Author:

ABDEL-RAHMAN M. A.1,ABDEL-RAHMAN M.1,ABO-ELSOUD M.2,EISSA M. F.2,LOTFY YAHIA A.1,BADAWI EMAD A.1

Affiliation:

1. Physics Department, Faculty of Science, El-Minia University, Egypt

2. Physics Department, Faculty of Science, Beni-suef University, Egypt

Abstract

The effect of irradiation dose (kGy) on a set of AlCu 8.5 samples has been studied. The samples were irradiated to doses of 10, 30, 50, 70, 100, 300, 500, 700 and 1000 kGy of 60 Co γ-source at room temperature. The effect of γ-ray irradiation on the values of the S- and W-parameters reveals two stages. In the first stage, the S-parameter increases, while the W-parameter decreases up to 70 kGy. In the second stage, the S- and W-parameters decrease and increase respectively in the dose region from 100 to 1000 kGy. The dominant controlling mechanism of the S- and W-parameters was observed.

Publisher

World Scientific Pub Co Pte Lt

Subject

Condensed Matter Physics,Statistical and Nonlinear Physics

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