Determination of activity concentration of potassium-40 and radon-222 by using its daughter progeny plumbum-214 and bismuth-214 in water from Kg. Gajah, Perak by using gamma-ray spectrometery / Emi Suliana Mamat

Determination of activity concentration of potassium-40 and radon-222 by using its daughter progeny plumbum-214 and bismuth-214 in water from Kg. Gajah, Perak by using gamma-ray spectrometery / Emi Suliana Mamat

In this thesis, the ex-mining's lake at Universiti Teknologi MARA Training Centre, Kampung Gajah, Perak was chosen as a study area to determine the activity concentration of radon-222 in water. The water samples collected were measure using gamma spectrometry, with a Hyper Pure Germanium detect...

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Bibliographic Details
Main Author: Mamat, Emi Suliana
Format: Student Project
Language:English
Published: Faculty of Applied Sciences 2010
Subjects:
Analytical chemistry
Online Access:http://ir.uitm.edu.my/id/eprint/23160/
http://ir.uitm.edu.my/id/eprint/23160/1/PPb_EMI%20SULIANA%20MAMAT%20AS%2010_5.pdf
id uitm-23160
recordtype eprints
spelling uitm-231602019-02-25T04:15:22Z http://ir.uitm.edu.my/id/eprint/23160/ Determination of activity concentration of potassium-40 and radon-222 by using its daughter progeny plumbum-214 and bismuth-214 in water from Kg. Gajah, Perak by using gamma-ray spectrometery / Emi Suliana Mamat Mamat, Emi Suliana Analytical chemistry In this thesis, the ex-mining's lake at Universiti Teknologi MARA Training Centre, Kampung Gajah, Perak was chosen as a study area to determine the activity concentration of radon-222 in water. The water samples collected were measure using gamma spectrometry, with a Hyper Pure Germanium detector. Water samples were directly filled into Marinelli beaker and seals with PVC tape and store for 3 weeks to allow radon-222 and its daughter nuclides were in radioactive equilibrium before counting. The radon activity concentration is determined by taking the weight average of the concentrations derived from gamma-ray lines associated with plumbum-214 and bismuth-214 decay. Radon-222 cannot directly count by gamma-spectrometer because it is not emitted gamma radiation, but it is alpha emitted radionuclides. The activity concentration of radon was compared for two factors which are wet season and dry season and filtered and unfiltered samples. Activities concentrations of radon-222 were determined. There are no significant variations in radon levels among different locations. For dry season, the concentration of radon-222 levels range from 5.47±1.31 Bq/L to 5.93±1.26 Bq/L for unfiltered samples and 4.84±1.34 Bq/L to 5.34±1.31 Bq/L for filtered samples.While for wet season, the radon concentration levels range from 4.4±1.25 Bq/L to 6.39±1.25 Bq/L for unfiltered samples and 3.45±1.25 Bq/L to 5.56±1.33 Bq/L for filtered samples. For dry season, the concentration levels of potassium-40 are in the range from 88.03±4.61 Bq/L to 103.95±3.73 Bq/L for unfiltered and 84.93±4.86 Bq/L to 102.24±4.73 Bq/L for filtered samples. While for dry season, the concentration of potassium-40 is the range from 85.51±4.51 Bq/L to 93.70±4.64 Bq/L for unfiltered samples and for filtered samples is from 74.03±5.60 Bq/L to 87.72±5.08 Bq/L. Faculty of Applied Sciences 2010 Student Project NonPeerReviewed text en http://ir.uitm.edu.my/id/eprint/23160/1/PPb_EMI%20SULIANA%20MAMAT%20AS%2010_5.pdf Mamat, Emi Suliana (2010) Determination of activity concentration of potassium-40 and radon-222 by using its daughter progeny plumbum-214 and bismuth-214 in water from Kg. Gajah, Perak by using gamma-ray spectrometery / Emi Suliana Mamat. [Student Project] (Unpublished)
repository_type Digital Repository
institution_category Local University
institution Universiti Teknologi MARA
building UiTM Institutional Repository
collection Online Access
language English
topic Analytical chemistry
spellingShingle Analytical chemistry
Mamat, Emi Suliana
Determination of activity concentration of potassium-40 and radon-222 by using its daughter progeny plumbum-214 and bismuth-214 in water from Kg. Gajah, Perak by using gamma-ray spectrometery / Emi Suliana Mamat
description In this thesis, the ex-mining's lake at Universiti Teknologi MARA Training Centre, Kampung Gajah, Perak was chosen as a study area to determine the activity concentration of radon-222 in water. The water samples collected were measure using gamma spectrometry, with a Hyper Pure Germanium detector. Water samples were directly filled into Marinelli beaker and seals with PVC tape and store for 3 weeks to allow radon-222 and its daughter nuclides were in radioactive equilibrium before counting. The radon activity concentration is determined by taking the weight average of the concentrations derived from gamma-ray lines associated with plumbum-214 and bismuth-214 decay. Radon-222 cannot directly count by gamma-spectrometer because it is not emitted gamma radiation, but it is alpha emitted radionuclides. The activity concentration of radon was compared for two factors which are wet season and dry season and filtered and unfiltered samples. Activities concentrations of radon-222 were determined. There are no significant variations in radon levels among different locations. For dry season, the concentration of radon-222 levels range from 5.47±1.31 Bq/L to 5.93±1.26 Bq/L for unfiltered samples and 4.84±1.34 Bq/L to 5.34±1.31 Bq/L for filtered samples.While for wet season, the radon concentration levels range from 4.4±1.25 Bq/L to 6.39±1.25 Bq/L for unfiltered samples and 3.45±1.25 Bq/L to 5.56±1.33 Bq/L for filtered samples. For dry season, the concentration levels of potassium-40 are in the range from 88.03±4.61 Bq/L to 103.95±3.73 Bq/L for unfiltered and 84.93±4.86 Bq/L to 102.24±4.73 Bq/L for filtered samples. While for dry season, the concentration of potassium-40 is the range from 85.51±4.51 Bq/L to 93.70±4.64 Bq/L for unfiltered samples and for filtered samples is from 74.03±5.60 Bq/L to 87.72±5.08 Bq/L.
format Student Project
author Mamat, Emi Suliana
author_facet Mamat, Emi Suliana
author_sort Mamat, Emi Suliana
title Determination of activity concentration of potassium-40 and radon-222 by using its daughter progeny plumbum-214 and bismuth-214 in water from Kg. Gajah, Perak by using gamma-ray spectrometery / Emi Suliana Mamat
title_short Determination of activity concentration of potassium-40 and radon-222 by using its daughter progeny plumbum-214 and bismuth-214 in water from Kg. Gajah, Perak by using gamma-ray spectrometery / Emi Suliana Mamat
title_full Determination of activity concentration of potassium-40 and radon-222 by using its daughter progeny plumbum-214 and bismuth-214 in water from Kg. Gajah, Perak by using gamma-ray spectrometery / Emi Suliana Mamat
title_fullStr Determination of activity concentration of potassium-40 and radon-222 by using its daughter progeny plumbum-214 and bismuth-214 in water from Kg. Gajah, Perak by using gamma-ray spectrometery / Emi Suliana Mamat
title_full_unstemmed Determination of activity concentration of potassium-40 and radon-222 by using its daughter progeny plumbum-214 and bismuth-214 in water from Kg. Gajah, Perak by using gamma-ray spectrometery / Emi Suliana Mamat
title_sort determination of activity concentration of potassium-40 and radon-222 by using its daughter progeny plumbum-214 and bismuth-214 in water from kg. gajah, perak by using gamma-ray spectrometery / emi suliana mamat
publisher Faculty of Applied Sciences
publishDate 2010
url http://ir.uitm.edu.my/id/eprint/23160/
http://ir.uitm.edu.my/id/eprint/23160/1/PPb_EMI%20SULIANA%20MAMAT%20AS%2010_5.pdf
first_indexed 2023-09-18T23:10:12Z
last_indexed 2023-09-18T23:10:12Z
_version_ 1777418750716280832

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