SIMULATION OF THE ENERGETIC AND ANGULAR RESPONSE OF A CASO4-DY DOSIMETER TO WEAKLY PENETRATING BETA-RADIATION USING THE EGS4 TRANSPORT CODE

Authors
LUGUERA E FERNANDEZ F DOMINGO C BAIXERAS C PREVOST H
Citation
E. Luguera et al., SIMULATION OF THE ENERGETIC AND ANGULAR RESPONSE OF A CASO4-DY DOSIMETER TO WEAKLY PENETRATING BETA-RADIATION USING THE EGS4 TRANSPORT CODE, Radiation protection dosimetry, 65(1-4), 1996, pp. 321-324
Citations number
11
Categorie Soggetti
Radiology,Nuclear Medicine & Medical Imaging","Nuclear Sciences & Tecnology
Journal title
Radiation protection dosimetry → ACNP
ISSN journal
01448420
Volume
65
Issue
1-4
Year of publication
1996
Part
1
Pages
321 - 324
Database
ISI
SICI code
0144-8420(1996)65:1-4<321:SOTEAA>2.0.ZU;2-7
Abstract
CaSO4:Dy is a good thermoluminescent TL material for personal dosimetr y because of its high sensitivity, although it is not tissue-equivalen t. A dosemeter based on this TL material has been developed for weakly penetrating beta radiation. The dosemeter consists of a detector, com posed of a 60 mg.cm(-2) thick layer of CaSO4:Dy (0.1%) pressed on an a luminium foil (84 mg.cm(-1) thick and 7 mm diameter), covered by a 5 m g.cm(-2) thick polyethylene filter. The EGS4 code has been used for Mo nte Carlo simulation to estimate the dosemeter response. Experimental and calculated results of the energy and angular responses to beta rad iation, corresponding to beta ray emitters of the secondary standard ( ISO 6980) Sr-90/Y-90, (TI)-T-204 and Pm-147, are presented.