Gamma Attenuation Behavior of h-BN and h-BN-TiB2 Composites


Buyuk B., Tugrul A. B. , Addemir A. O. , Ay N.

ACTA PHYSICA POLONICA A, vol.125, no.2, pp.420-422, 2014 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 125 Issue: 2
  • Publication Date: 2014
  • Doi Number: 10.12693/aphyspola.125.420
  • Title of Journal : ACTA PHYSICA POLONICA A
  • Page Numbers: pp.420-422

Abstract

Hexagonal boron nitride (h-BN) and hexagonal boron nitride-titanium diboride (h-BN-TiB2) composites are advanced materials for high-tech applications. They were investigated against gamma radioisotope sources Cs-137 and Co-60 which have gamma peaks 0.662 MeV for Cs-137, and 1.17 and 1.33 MeV for Co-60. Materials have been produced at 1800 C temperature in argon atmosphere without pressure during 2 h time. Linear and mass attenuation coefficients were calculated for the materials. Gamma transmission technique was used in the experiments. The experimental investigated mass attenuation coefficients of the materials for Cs-137 and Co-60 gamma radioisotope sources were compared with XCOM computer code. For h-BN-TiB2 composites the ratio of TiB2 in the composites is 55% by weight. So gamma attenuation effects of adding TiB2 to h-BN were discussed. It could be said that adding TiB2 to h-BN increases the linear gamma attenuation of the samples.