Statistical prediction of environmental gamma radiation doses, in Perak, Malaysia

The concentrations of Naturally Occurring Radioactive Material (NORM) and their corresponding terrestrial gamma radiation have been shown to be associated with certain lithology and soil types. A possible relationships among gamma radiation levels, and the lithology and soil types make it possible t...

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Main Authors:	Zalina Rahmat, Ismail Bahari, Redzuwan Yahaya, Amran Ab. Majid
Format:	Article
Language:	English
Published:	Universiti Kebangsaan Malaysia 2010
Online Access:	http://journalarticle.ukm.my/7378/ http://journalarticle.ukm.my/7378/ http://journalarticle.ukm.my/7378/1/01_Md_Yeaminhossain.pdf

id	ukm-7378
recordtype	eprints
spelling	ukm-73782016-12-14T06:43:54Z http://journalarticle.ukm.my/7378/ Statistical prediction of environmental gamma radiation doses, in Perak, Malaysia Zalina Rahmat, Ismail Bahari, Ismail Bahari, Redzuwan Yahaya, Amran Ab. Majid, The concentrations of Naturally Occurring Radioactive Material (NORM) and their corresponding terrestrial gamma radiation have been shown to be associated with certain lithology and soil types. A possible relationships among gamma radiation levels, and the lithology and soil types make it possible to predict ionizing radiation level of an area that cannot be directly measured. A study was carried out to statistically predict and validate environmental gamma radiation dose rates based on actual field measurements using a sodium iodide detector. Results obtained showed that the predicted dose rate (Dp) may be determined using a multiple correlation regression equation, Dp = 0.35DL + 0.82 Ds – 0.02, that integrates dose rates contributed by different lithological structures (DL) and soil types (Ds). Statistical analysis on 32 different lithology and soil type combinations showed that more than 50% of the predicted data were not significantly different from the data measured in the field. A predicted isodose map was subsequently plotted base on 4 dose rate classes ranging from 0.1 – 0.3 μSv h-1. Universiti Kebangsaan Malaysia 2010-08 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/7378/1/01_Md_Yeaminhossain.pdf Zalina Rahmat, and Ismail Bahari, and Ismail Bahari, and Redzuwan Yahaya, and Amran Ab. Majid, (2010) Statistical prediction of environmental gamma radiation doses, in Perak, Malaysia. Sains Malaysiana, 39 (4). pp. 599-605. ISSN 0126-6039 http://www.ukm.my/jsm/english_journals/vol39num4_2010/contentsVol39num4_2010.html
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	The concentrations of Naturally Occurring Radioactive Material (NORM) and their corresponding terrestrial gamma radiation have been shown to be associated with certain lithology and soil types. A possible relationships among gamma radiation levels, and the lithology and soil types make it possible to predict ionizing radiation level of an area that cannot be directly measured. A study was carried out to statistically predict and validate environmental gamma radiation dose rates based on actual field measurements using a sodium iodide detector. Results obtained showed that the predicted dose rate (Dp) may be determined using a multiple correlation regression equation, Dp = 0.35DL + 0.82 Ds – 0.02, that integrates dose rates contributed by different lithological structures (DL) and soil types (Ds). Statistical analysis on 32 different lithology and soil type combinations showed that more than 50% of the predicted data were not significantly different from the data measured in the field. A predicted isodose map was subsequently plotted base on 4 dose rate classes ranging from 0.1 – 0.3 μSv h-1.
format	Article
author	Zalina Rahmat, Ismail Bahari, Ismail Bahari, Redzuwan Yahaya, Amran Ab. Majid,
spellingShingle	Zalina Rahmat, Ismail Bahari, Ismail Bahari, Redzuwan Yahaya, Amran Ab. Majid, Statistical prediction of environmental gamma radiation doses, in Perak, Malaysia
author_facet	Zalina Rahmat, Ismail Bahari, Ismail Bahari, Redzuwan Yahaya, Amran Ab. Majid,
author_sort	Zalina Rahmat,
title	Statistical prediction of environmental gamma radiation doses, in Perak, Malaysia
title_short	Statistical prediction of environmental gamma radiation doses, in Perak, Malaysia
title_full	Statistical prediction of environmental gamma radiation doses, in Perak, Malaysia
title_fullStr	Statistical prediction of environmental gamma radiation doses, in Perak, Malaysia
title_full_unstemmed	Statistical prediction of environmental gamma radiation doses, in Perak, Malaysia
title_sort	statistical prediction of environmental gamma radiation doses, in perak, malaysia
publisher	Universiti Kebangsaan Malaysia
publishDate	2010
url	http://journalarticle.ukm.my/7378/ http://journalarticle.ukm.my/7378/ http://journalarticle.ukm.my/7378/1/01_Md_Yeaminhossain.pdf
first_indexed	2023-09-18T19:49:32Z
last_indexed	2023-09-18T19:49:32Z
_version_	1777406126665498624

Statistical prediction of environmental gamma radiation doses, in Perak, Malaysia

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