Effect of collimator size and absorber thickness on gamma ray attenuation measurements for bakelite and perspex

Authors
Sidhu, GS Singh, K Singh, PS Mudahar, GS
Citation
Gs. Sidhu et al., Effect of collimator size and absorber thickness on gamma ray attenuation measurements for bakelite and perspex, PRAMANA-J P, 53(5), 1999, pp. 851-855
Citations number
6
Categorie Soggetti
Physics
Journal title
PRAMANA-JOURNAL OF PHYSICS
ISSN journal
03044289 → ACNP
Volume
53
Issue
5
Year of publication
1999
Pages
851 - 855
Database
ISI
SICI code
0304-4289(199911)53:5<851:EOCSAA>2.0.ZU;2-U
Abstract
The mass attenuation coefficient (mu(m),) of 662 keV gamma rays have been m easured in the extended media of bakelite and perspex under different colli mation conditions. The increase in attenuation coefficient is seen with inc rease in sample thickness as well as with collimator size due to the contri bution of multiple scattered photons in the uncollided beam of 662 keV gamm a rays.