Radiological dose assessment of natural radioactivity in Malaysian tiles using resrad-build computer code

This research reports the annual effective dose of dwellers based on the finding of natural radioactivity concentrations in Malaysian tiles. A total of 30 tiles samples obtained from the manufacturer or bought directly from local hardware store. Natural radioactivity was analyzed using gamma spectro...

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Main Authors:	Aznan Fazli Ismail, Shittu Abdullahi, Supian Samat, Muhamad Samudi Yasir
Format:	Article
Language:	English
Published:	Penerbit Universiti Kebangsaan Malaysia 2018
Online Access:	http://journalarticle.ukm.my/12091/ http://journalarticle.ukm.my/12091/ http://journalarticle.ukm.my/12091/1/18%20Aznan%20Fazli%20Ismail.pdf

id	ukm-12091
recordtype	eprints
spelling	ukm-120912018-09-22T11:10:33Z http://journalarticle.ukm.my/12091/ Radiological dose assessment of natural radioactivity in Malaysian tiles using resrad-build computer code Aznan Fazli Ismail, Shittu Abdullahi, Supian Samat, Muhamad Samudi Yasir, This research reports the annual effective dose of dwellers based on the finding of natural radioactivity concentrations in Malaysian tiles. A total of 30 tiles samples obtained from the manufacturer or bought directly from local hardware store. Natural radioactivity was analyzed using gamma spectrometry system for 12 h counting times. The activity concentration of 226Ra, 232Th, and 40K in the analyzed samples ranged from 37.50 – 158.05 Bq kg-1, 42.22 – 80.19 Bq kg-1 and 349.46 – 750.18 Bq kg-1, respectively. The determined radium equivalent activity was below than the recommended limit of 370 Bq kg-1. The external dose received by dwellers due to natural radionuclides in tiles were projected for 1, 5, 10, 20 and 50 years through six exposure pathways using Resrad-build computer code. The results showed that the annual effective dose received by dwellers increased for the investigated timelines but still lower than the annual recommended limit of 1500 μSv. The simulation result also indicates that radon gas was the primary radiation exposure which contributes 80-94 % from the total radiation exposure to dwellers. Penerbit Universiti Kebangsaan Malaysia 2018-05 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/12091/1/18%20Aznan%20Fazli%20Ismail.pdf Aznan Fazli Ismail, and Shittu Abdullahi, and Supian Samat, and Muhamad Samudi Yasir, (2018) Radiological dose assessment of natural radioactivity in Malaysian tiles using resrad-build computer code. Sains Malaysiana, 47 (5). pp. 1017-1023. ISSN 0126-6039 http://www.ukm.my/jsm/english_journals/vol47num5_2018/contentsVol47num5_2018.html
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	This research reports the annual effective dose of dwellers based on the finding of natural radioactivity concentrations in Malaysian tiles. A total of 30 tiles samples obtained from the manufacturer or bought directly from local hardware store. Natural radioactivity was analyzed using gamma spectrometry system for 12 h counting times. The activity concentration of 226Ra, 232Th, and 40K in the analyzed samples ranged from 37.50 – 158.05 Bq kg-1, 42.22 – 80.19 Bq kg-1 and 349.46 – 750.18 Bq kg-1, respectively. The determined radium equivalent activity was below than the recommended limit of 370 Bq kg-1. The external dose received by dwellers due to natural radionuclides in tiles were projected for 1, 5, 10, 20 and 50 years through six exposure pathways using Resrad-build computer code. The results showed that the annual effective dose received by dwellers increased for the investigated timelines but still lower than the annual recommended limit of 1500 μSv. The simulation result also indicates that radon gas was the primary radiation exposure which contributes 80-94 % from the total radiation exposure to dwellers.
format	Article
author	Aznan Fazli Ismail, Shittu Abdullahi, Supian Samat, Muhamad Samudi Yasir,
spellingShingle	Aznan Fazli Ismail, Shittu Abdullahi, Supian Samat, Muhamad Samudi Yasir, Radiological dose assessment of natural radioactivity in Malaysian tiles using resrad-build computer code
author_facet	Aznan Fazli Ismail, Shittu Abdullahi, Supian Samat, Muhamad Samudi Yasir,
author_sort	Aznan Fazli Ismail,
title	Radiological dose assessment of natural radioactivity in Malaysian tiles using resrad-build computer code
title_short	Radiological dose assessment of natural radioactivity in Malaysian tiles using resrad-build computer code
title_full	Radiological dose assessment of natural radioactivity in Malaysian tiles using resrad-build computer code
title_fullStr	Radiological dose assessment of natural radioactivity in Malaysian tiles using resrad-build computer code
title_full_unstemmed	Radiological dose assessment of natural radioactivity in Malaysian tiles using resrad-build computer code
title_sort	radiological dose assessment of natural radioactivity in malaysian tiles using resrad-build computer code
publisher	Penerbit Universiti Kebangsaan Malaysia
publishDate	2018
url	http://journalarticle.ukm.my/12091/ http://journalarticle.ukm.my/12091/ http://journalarticle.ukm.my/12091/1/18%20Aznan%20Fazli%20Ismail.pdf
first_indexed	2023-09-18T20:01:50Z
last_indexed	2023-09-18T20:01:50Z
_version_	1777406900351008768

Radiological dose assessment of natural radioactivity in Malaysian tiles using resrad-build computer code

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