Radiological assessment of the Bagh Bhairav temple in Kirtipur, Nepal using in-situ gamma ray spectrometry
In this work the results of an in-situ radiological survey of the Bagh Bhairav complex in Kirtipur, Nepal, using a portable gamma ray spectrometer equipped with a GPS and data logger unit is presented. The study aims to assess external exposure by evaluating and mapping external absorbed dose rates...
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Department of Physics, Mahendra Morang Adarsh Multiple Campus, Tribhuvan University
2025-05-01
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| Series: | Bibechana |
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| Online Access: | https://www.nepjol.info/index.php/BIBECHANA/article/view/70839 |
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| author | Anita Mishra Raju Khanal |
| author_facet | Anita Mishra Raju Khanal |
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In this work the results of an in-situ radiological survey of the Bagh Bhairav complex in Kirtipur, Nepal, using a portable gamma ray spectrometer equipped with a GPS and data logger unit is presented. The study aims to assess external exposure by evaluating and mapping external absorbed dose rates and radionuclide activity concentrations in the area. The measured absorbed dose rate in air ranged from 100.330 nGy/h to 170.506 nGy/h, with a mean value of 128.661 ± 14.637 nGy/h. The activity concentrations of the gamma radionuclides 238U, 232Th and 40K, outdoor annual effective dose and excess lifetime cancer risk were found higher than the world average values. The elevated absorbed dose rate is attributed to the high activity concentrations of gamma radionuclides present in soils, rocks at high altitudes. This study provides baseline radiological data for the Bagh Bhairav area and contributes to the limited radiological data available for Nepal.
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| format | Article |
| id | doaj-art-4ac82c31f5e44b3bba08e1b75fd1949f |
| institution | Kabale University |
| issn | 2091-0762 2382-5340 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Department of Physics, Mahendra Morang Adarsh Multiple Campus, Tribhuvan University |
| record_format | Article |
| series | Bibechana |
| spelling | doaj-art-4ac82c31f5e44b3bba08e1b75fd1949f2025-08-20T03:31:57ZengDepartment of Physics, Mahendra Morang Adarsh Multiple Campus, Tribhuvan UniversityBibechana2091-07622382-53402025-05-0122210.3126/bibechana.v22i2.70839Radiological assessment of the Bagh Bhairav temple in Kirtipur, Nepal using in-situ gamma ray spectrometryAnita Mishra0Raju Khanal1Central Department of Physics, Tribhuvan UniversityCentral Department of Physics, Tribhuvan University In this work the results of an in-situ radiological survey of the Bagh Bhairav complex in Kirtipur, Nepal, using a portable gamma ray spectrometer equipped with a GPS and data logger unit is presented. The study aims to assess external exposure by evaluating and mapping external absorbed dose rates and radionuclide activity concentrations in the area. The measured absorbed dose rate in air ranged from 100.330 nGy/h to 170.506 nGy/h, with a mean value of 128.661 ± 14.637 nGy/h. The activity concentrations of the gamma radionuclides 238U, 232Th and 40K, outdoor annual effective dose and excess lifetime cancer risk were found higher than the world average values. The elevated absorbed dose rate is attributed to the high activity concentrations of gamma radionuclides present in soils, rocks at high altitudes. This study provides baseline radiological data for the Bagh Bhairav area and contributes to the limited radiological data available for Nepal. https://www.nepjol.info/index.php/BIBECHANA/article/view/70839Absorbed dose rateactivity concentrationAEDELCRin-situ radiological surveyNepal |
| spellingShingle | Anita Mishra Raju Khanal Radiological assessment of the Bagh Bhairav temple in Kirtipur, Nepal using in-situ gamma ray spectrometry Bibechana Absorbed dose rate activity concentration AED ELCR in-situ radiological survey Nepal |
| title | Radiological assessment of the Bagh Bhairav temple in Kirtipur, Nepal using in-situ gamma ray spectrometry |
| title_full | Radiological assessment of the Bagh Bhairav temple in Kirtipur, Nepal using in-situ gamma ray spectrometry |
| title_fullStr | Radiological assessment of the Bagh Bhairav temple in Kirtipur, Nepal using in-situ gamma ray spectrometry |
| title_full_unstemmed | Radiological assessment of the Bagh Bhairav temple in Kirtipur, Nepal using in-situ gamma ray spectrometry |
| title_short | Radiological assessment of the Bagh Bhairav temple in Kirtipur, Nepal using in-situ gamma ray spectrometry |
| title_sort | radiological assessment of the bagh bhairav temple in kirtipur nepal using in situ gamma ray spectrometry |
| topic | Absorbed dose rate activity concentration AED ELCR in-situ radiological survey Nepal |
| url | https://www.nepjol.info/index.php/BIBECHANA/article/view/70839 |
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