Determination of gross alpha and gross beta in soil around repository facility at Bukit Kledang, Perak, Malaysia

Mohd Izwan Abdul Adziz, Khoo Kok Siong Kok Siong

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Recently, the Long Term Storage Facility (LTSF) in Bukit Kledang, Perak, Malaysia, has been upgraded to repository facility upon the completion of decontamination and decommissioning (D&D) process. Thorium waste and contaminated material that may contain some minor amounts of thorium hydroxide were disposed in this facility. This study is conducted to determine the concentrations of gross alpha and gross beta radioactivities in soil samples collected around the repository facility. A total of 12 soil samples were collected consisting 10 samples from around the facility and 2 samples from selected residential area near the facility. In addition, the respective dose rates were measured 5?cm and 1?m above the ground by using survey meter with Geiger Muller (GM) detector and Sodium Iodide (NaI) detector. Soil samples were collected using hand auger and then were taken back to the laboratory for further analysis. Samples were cleaned, dried, pulverized and sieved prior to analysis. Gross alpha and gross beta activity measurements were carried out using gas flow proportional counter, Canberra Series 5 XLB-Automatic Low Background Alpha and Beta Counting System. The obtained results show that, the gross alpha and gross beta activity concentration ranged from 1.55 to 5.34 Bq/g with a mean value of 3.47 ± 0.09 Bq/g and 1.64 to 5.78 Bq/g with a mean value of 3.49 ± 0.09 Bq/g, respectively. These results can be used as an additional data to represent terrestrial radioactivity baseline data for Malaysia environment. This estimation will also serve as baseline for detection of any future related activities of contamination especially around the repository facility area.

Original languageEnglish
Title of host publication2017 UKM FST Postgraduate Colloquium
Subtitle of host publicationProceedings of the University Kebangsaan Malaysia, Faculty of Science and Technology 2017 Postgraduate Colloquium
PublisherAmerican Institute of Physics Inc.
Volume1940
ISBN (Electronic)9780735416321
DOIs
Publication statusPublished - 4 Apr 2018
Event2017 UKM FST Postgraduate Colloquium - Selangor, Malaysia
Duration: 12 Jul 201713 Jul 2017

Other

Other2017 UKM FST Postgraduate Colloquium
CountryMalaysia
CitySelangor
Period12/7/1713/7/17

Fingerprint

Malaysia
soils
thorium
radioactivity
decommissioning
residential areas
sodium iodides
decontamination
detectors
proportional counters
iodides
hydroxides
gas flow
counting
contamination
dosage

Keywords

  • gas proportional counter
  • Gross Alpha
  • Gross Beta
  • repository facility.
  • Soil sample

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Adziz, M. I. A., & Kok Siong, K. K. S. (2018). Determination of gross alpha and gross beta in soil around repository facility at Bukit Kledang, Perak, Malaysia. In 2017 UKM FST Postgraduate Colloquium: Proceedings of the University Kebangsaan Malaysia, Faculty of Science and Technology 2017 Postgraduate Colloquium (Vol. 1940). [020009] American Institute of Physics Inc.. https://doi.org/10.1063/1.5027924

Determination of gross alpha and gross beta in soil around repository facility at Bukit Kledang, Perak, Malaysia. / Adziz, Mohd Izwan Abdul; Kok Siong, Khoo Kok Siong.

2017 UKM FST Postgraduate Colloquium: Proceedings of the University Kebangsaan Malaysia, Faculty of Science and Technology 2017 Postgraduate Colloquium. Vol. 1940 American Institute of Physics Inc., 2018. 020009.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Adziz, MIA & Kok Siong, KKS 2018, Determination of gross alpha and gross beta in soil around repository facility at Bukit Kledang, Perak, Malaysia. in 2017 UKM FST Postgraduate Colloquium: Proceedings of the University Kebangsaan Malaysia, Faculty of Science and Technology 2017 Postgraduate Colloquium. vol. 1940, 020009, American Institute of Physics Inc., 2017 UKM FST Postgraduate Colloquium, Selangor, Malaysia, 12/7/17. https://doi.org/10.1063/1.5027924
Adziz MIA, Kok Siong KKS. Determination of gross alpha and gross beta in soil around repository facility at Bukit Kledang, Perak, Malaysia. In 2017 UKM FST Postgraduate Colloquium: Proceedings of the University Kebangsaan Malaysia, Faculty of Science and Technology 2017 Postgraduate Colloquium. Vol. 1940. American Institute of Physics Inc. 2018. 020009 https://doi.org/10.1063/1.5027924
Adziz, Mohd Izwan Abdul ; Kok Siong, Khoo Kok Siong. / Determination of gross alpha and gross beta in soil around repository facility at Bukit Kledang, Perak, Malaysia. 2017 UKM FST Postgraduate Colloquium: Proceedings of the University Kebangsaan Malaysia, Faculty of Science and Technology 2017 Postgraduate Colloquium. Vol. 1940 American Institute of Physics Inc., 2018.
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