Publikasi Dosen

Predicting terrestrial gamma dose rate based on geological and soil information: case study of Perak state, Malaysia

Abstract
An extensive terrestrial gamma radiation dose (TGRD) rate survey has been conducted in Perak State, Peninsular Malaysia. The survey has been carried
out taking into account geological and soil information, involving 2930 in situ surveys. Based on geological and soil information collected during TGRD
rate measurements, TGRD rates have been predicted in Perak State using a statistical regression analysis which would be helpful to focus surveys in
areas that are difficult to access. An equation was formulated according to a linear relationship between TGRD rates, geological contexts and soil types.
The comparison of in situ measurements and predicted TGRD dose rates was tabulated and showed good agreement with the linear regression equation.
The TGRD rates in the study area ranged from 38 nGy h−1 to 1039 nGy h−1 with a mean value of 224 ± 138 nGy h−1 . This value is higher than the world
average as reported in UNSCEAR 2000. The TGRD rates contribute an average dose rate of 1.37 mSv per year. An isodose map for the study area
was developed using a Kriging method based on predicted and in situ TGRD rate values.

Keywords: terrestrial gamma radiation, dose rate, statistical prediction,
geology, soil type

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Informasi Detail

Judul Seri

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No. Panggil

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Penerbit

: iopscience.iop.org., 2016

Deskripsi Fisik

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Bahasa

English

ISBN/ISSN

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Klasifikasi

NONE

Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

2021

Subjek

dose rate
errestrial gamma
statistical prediction
geology
soil type

Info Detail Spesifik

Jurnal Internasional; http://iopscience.iop.org/0952-4746/36/1/20;36 (2016) 20–36; url http://dx.doi.org/10.1088/0952-4746/36/1/20 ;Arthur : A T Ramli-1, N H Apriantoro-2, A Heryansyah-3, N A Basri-1, M S M Sanusi-1 and N Z H Abu Hanifah-1 1- Department of Physics, Faculty of Science, Universiti Teknologi Malaysia 81310 UTM Skudai Johor, Malaysia 2- Politeknik Kesehatan Kementerian Kesehatan Jakarta II, Jln. Hang Jebat III/F3 Kebayoran Baru, Jakarta 12120, Indonesia 3 -Institute of Environmental and Water Resource Management (IPASA), Faculty of Civil Engineering, Universiti Teknologi Malaysia 81310 UTM Skudai Johor, Malaysia, kd17-09-2021ns

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