Naturally occuring radionuclide in Malaysian granites

Omar M., and Hassan W.F.W., (1999) Naturally occuring radionuclide in Malaysian granites. Jurnal Sains Nuklear Malaysia, 17 (2). ISSN 01280155

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Affiliations

Malaysian Institute for Nuclear Technology Research["lib/metafield:join_corp_creators" not defined]Malaysian Institute for Nuclear Technology Research

Abstract

The concentration of radium, a naturally occurring radionuclide, in Malaysian granite was analysed using a hyper-pure germanium-gamma spectrometer. The results show that Cretaceous granites from southern part of Peninsula has lower radium concentration compared to Triassic granites from the Western Belt of Peninsular Malaysia. The mean concentrations of Ra-226 and Ra-228 in peninsular granites are 0.20 Bq/g and 0.16 Bq/g respectively. Absorbed dose rate from granite was estimated to be 190 nGy/h with a maximum value of 490 nGy/h.

Kepekatan radium, salah satu radionuklid tabii, dalam granit Malaysia telah dianalisis menggunakan spektrometer gama germanium lampau-tulen. Keputusan menunjukkan bahawa granit usia Kapur dari selatan Semenanjung mempunyai kepekatan radium yang lebih rendah berbanding dengan granit Trias dari Jalur Barat Semenanjung Malaysia. Min kepekatan Ra-226 dan Ra 228 bagi granit Semenanjung masing-masing ialah 0.20 Bq/g. Anggaran kadar dos terserap dari granit ialah 190 nGy/j dengan nilai maksimum 490 nGy/j.

Item Type:

Journal

Additional Information:

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Keywords:

Absorbed Dose Rate, Granite, Naturally Occuring Radionuclides, Radium

Subjects:

Q Science, Computer Science

ID Code:

3357