A study on the atmospheric dispersion of radionuclide released from TRIGA MARK II reactor using gaussian plume model

TRIGA MARK II reactor is a research facility and site for neutron activation analysis. Should there be fuel rod damage for the first time, amongst its possible causes are human and environmental factor. Consequently, the study objectives were to determine types and released rates of radionuclides di...

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Main Authors:	Jeyleenny Ranty Janson, Siti Nur Ain Sulaiman, Suhaimi Kassim, Nur Syahirah Muszakhir, Faizal Mohamed, Syazwani Mohd Fadzil, Khoo, Kok Siong
Format:	Article
Language:	English
Published:	Penerbit Universiti Kebangsaan Malaysia 2019
Online Access:	http://journalarticle.ukm.my/14356/ http://journalarticle.ukm.my/14356/ http://journalarticle.ukm.my/14356/1/23%20Jeyleenny%20Ranty%20Janson.pdf

id	ukm-14356
recordtype	eprints
spelling	ukm-143562020-03-03T08:08:32Z http://journalarticle.ukm.my/14356/ A study on the atmospheric dispersion of radionuclide released from TRIGA MARK II reactor using gaussian plume model Jeyleenny Ranty Janson, Siti Nur Ain Sulaiman, Suhaimi Kassim, Nur Syahirah Muszakhir, Faizal Mohamed, Syazwani Mohd Fadzil, Khoo, Kok Siong TRIGA MARK II reactor is a research facility and site for neutron activation analysis. Should there be fuel rod damage for the first time, amongst its possible causes are human and environmental factor. Consequently, the study objectives were to determine types and released rates of radionuclides dispersed to air and deposited on land through core inventory using ORIGEN2 Code; to determine the concentrations of radionuclides released to air and deposited on land using Gaussian Plume Model; and to determine the exposure doses of radionuclides released to air and deposited on land using exposure dose equation. Core inventory identified types of radionuclides which were Br, I, Kr and Xe. The chosen radioisotopes of Br-83, I-131, Kr-85 and Xe-135 were based on its negative impact on human body system. The maximum released rate of Br-83 was 0.522×105 Bq/s; I-131 was 2.818×105 Bq/s; Kr-85 was 6.447×105 Bq/s and Xe-135 was 4.850×105 Bq/s, respectively. The maximum concentration in the atmosphere for Br-83 was 1.981 Bq/m3; I-131 was 0.062 Bq/m3; Kr-85 was 25.034 Bq/m3 and Xe-135 was 4.248 Bq/m3. The annual exposure doses for four selected radionuclides were 1326 μSv/yr (300 m), 119 μSv/yr (1000 m) and 7.463 μSv/yr (4000 m) for Category B, whereas for Category were 194 μSv/yr (300 m), 17.440 μSv/yr (1000 m) and 1.090 μSv/yr (4000 m), respectively. Conclusively, this study shows that in case of fuel rod damage on TRIGA MARK II reactor, radionuclide atmospheric dispersion at a distance of 300 m (Category B) was exceeding the standard annual exposure dose limit (1000 μSv/yr). Penerbit Universiti Kebangsaan Malaysia 2019-09 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/14356/1/23%20Jeyleenny%20Ranty%20Janson.pdf Jeyleenny Ranty Janson, and Siti Nur Ain Sulaiman, and Suhaimi Kassim, and Nur Syahirah Muszakhir, and Faizal Mohamed, and Syazwani Mohd Fadzil, and Khoo, Kok Siong (2019) A study on the atmospheric dispersion of radionuclide released from TRIGA MARK II reactor using gaussian plume model. Sains Malaysiana, 48 (9). pp. 2021-2028. ISSN 0126-6039 http://www.ukm.my/jsm/malay_journals/jilid48bil9_2019/KandunganJilid48Bil9_2019.html
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	TRIGA MARK II reactor is a research facility and site for neutron activation analysis. Should there be fuel rod damage for the first time, amongst its possible causes are human and environmental factor. Consequently, the study objectives were to determine types and released rates of radionuclides dispersed to air and deposited on land through core inventory using ORIGEN2 Code; to determine the concentrations of radionuclides released to air and deposited on land using Gaussian Plume Model; and to determine the exposure doses of radionuclides released to air and deposited on land using exposure dose equation. Core inventory identified types of radionuclides which were Br, I, Kr and Xe. The chosen radioisotopes of Br-83, I-131, Kr-85 and Xe-135 were based on its negative impact on human body system. The maximum released rate of Br-83 was 0.522×105 Bq/s; I-131 was 2.818×105 Bq/s; Kr-85 was 6.447×105 Bq/s and Xe-135 was 4.850×105 Bq/s, respectively. The maximum concentration in the atmosphere for Br-83 was 1.981 Bq/m3; I-131 was 0.062 Bq/m3; Kr-85 was 25.034 Bq/m3 and Xe-135 was 4.248 Bq/m3. The annual exposure doses for four selected radionuclides were 1326 μSv/yr (300 m), 119 μSv/yr (1000 m) and 7.463 μSv/yr (4000 m) for Category B, whereas for Category were 194 μSv/yr (300 m), 17.440 μSv/yr (1000 m) and 1.090 μSv/yr (4000 m), respectively. Conclusively, this study shows that in case of fuel rod damage on TRIGA MARK II reactor, radionuclide atmospheric dispersion at a distance of 300 m (Category B) was exceeding the standard annual exposure dose limit (1000 μSv/yr).
format	Article
author	Jeyleenny Ranty Janson, Siti Nur Ain Sulaiman, Suhaimi Kassim, Nur Syahirah Muszakhir, Faizal Mohamed, Syazwani Mohd Fadzil, Khoo, Kok Siong
spellingShingle	Jeyleenny Ranty Janson, Siti Nur Ain Sulaiman, Suhaimi Kassim, Nur Syahirah Muszakhir, Faizal Mohamed, Syazwani Mohd Fadzil, Khoo, Kok Siong A study on the atmospheric dispersion of radionuclide released from TRIGA MARK II reactor using gaussian plume model
author_facet	Jeyleenny Ranty Janson, Siti Nur Ain Sulaiman, Suhaimi Kassim, Nur Syahirah Muszakhir, Faizal Mohamed, Syazwani Mohd Fadzil, Khoo, Kok Siong
author_sort	Jeyleenny Ranty Janson,
title	A study on the atmospheric dispersion of radionuclide released from TRIGA MARK II reactor using gaussian plume model
title_short	A study on the atmospheric dispersion of radionuclide released from TRIGA MARK II reactor using gaussian plume model
title_full	A study on the atmospheric dispersion of radionuclide released from TRIGA MARK II reactor using gaussian plume model
title_fullStr	A study on the atmospheric dispersion of radionuclide released from TRIGA MARK II reactor using gaussian plume model
title_full_unstemmed	A study on the atmospheric dispersion of radionuclide released from TRIGA MARK II reactor using gaussian plume model
title_sort	study on the atmospheric dispersion of radionuclide released from triga mark ii reactor using gaussian plume model
publisher	Penerbit Universiti Kebangsaan Malaysia
publishDate	2019
url	http://journalarticle.ukm.my/14356/ http://journalarticle.ukm.my/14356/ http://journalarticle.ukm.my/14356/1/23%20Jeyleenny%20Ranty%20Janson.pdf
first_indexed	2023-09-18T20:06:55Z
last_indexed	2023-09-18T20:06:55Z
_version_	1777407219657080832

A study on the atmospheric dispersion of radionuclide released from TRIGA MARK II reactor using gaussian plume model

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