Gamma-ray activity concentrations, dose rate and hazard index determination of natural radioactivity in Malaysia’s selected tourism beach sands / Hamimmah Jamaluddin.

Jamaluddin, Hamimmah (2009) Gamma-ray activity concentrations, dose rate and hazard index determination of natural radioactivity in Malaysia’s selected tourism beach sands / Hamimmah Jamaluddin. [Student Project] (Unpublished)

Abstract

Natural occurring radioactive element materials (NORM) is a source of continuous exposure to human. NORM can be found in rocks, soil and sand. Gamma radiation is emitted from radioactive elements such as in sands. Malaysia was known as a tropical country, which is, consists of interesting attraction such as island and beaches. The objective for this study is to measure activity concentrations radionuclides Ra-226, Th- 232, K-40, hazard index and dose rate in sands samples collected from several state in peninsular Malaysia. Activity concentrations were measured by gamma ray spectrometry. The average value for concentrations of Ra-226 (Uranium series), Th-232, and K-40 were found in range 14.22 Bq kg-1, 8.23 Bq kg-1, 70.30 Bq kg-1 respectively. The average for dose rates is 14.47 nGy.h-1 and annual effective dose is 0.02 (mSv/y). Then external hazard index for this studied, were found in normal range from 0.03 to 0.22.

Metadata

Item Type: Student Project
Creators:
Creators
Email / ID Num.
Jamaluddin, Hamimmah
UNSPECIFIED
Contributors:
Contribution
Name
Email / ID Num.
Thesis advisor
Saat, Ahmad (Assoc. Prof Dr)
UNSPECIFIED
Subjects: Q Science > QC Physics > Radiation physics (General)
Q Science > QC Physics > Nuclear and particle physics. Atomic energy. Radioactivity > Radioactivity and radioactive substances
Divisions: Universiti Teknologi MARA, Shah Alam > Faculty of Applied Sciences
Programme: Bachelor of Science (Hons.) Physics
Keywords: Gamma-ray activity, Hazard index, Tourism beach sands
Date: 2009
URI: https://ir.uitm.edu.my/id/eprint/45346
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