Preliminary study on the measurement of background radiation dose at Antarctica during 32 nd expedition
A significant proportion (10%) of the natural background radiation is of cosmic origin. Cosmic ray consists of gamma, protons, electrons, pions, muons, neutrons and low Z nuclei. Due to the geomagnetic effect, cosmic radiation levels at poles are higher. As a consequence, personnel working in Antarc...
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ftindinstgeomagn:oai:localhost:123456789/846 2023-05-15T14:04:08+02:00 Preliminary study on the measurement of background radiation dose at Antarctica during 32 nd expedition Bakshi, A.K. Pal, Rupali Dhar, Ajay Chougaonkar, M.P. 2013 http://14.139.123.141:8080/jspui/handle/123456789/846 en eng Cosmic rays Thermoluminescence dosimeter Preliminary study Antarctica CR‑39 Article 2013 ftindinstgeomagn 2019-11-26T08:39:29Z A significant proportion (10%) of the natural background radiation is of cosmic origin. Cosmic ray consists of gamma, protons, electrons, pions, muons, neutrons and low Z nuclei. Due to the geomagnetic effect, cosmic radiation levels at poles are higher. As a consequence, personnel working in Antarctica (or Arctic) are subjected to high level of cosmic radiation. The present study gives the details of the estimation of background radiation (neutrons, gamma and electrons) dose rate around the Indian station at Antartica named "Bharati" measured during 32 nd Indian scientific expedition to Antarctica (32 nd INSEA). The measurement was carried out by passive dosimeters such as TLDs and CR-39 and active dosimeter such as RadEye G portable gamma survey meter. Gamma and electron components were measured using TLDs and survey meter, whereas CR-39 SSNTDs and neutron sensitive TLDs were used for neutron measurements. These detectors were deployed at few selected locations around Bharati station for about 2 months during summer expedition. The neutron detectors used in the study were pre-calibrated with 241 Am-Be fast/thermal neutron source. The fast neutron dose rate measured based on CR-39 detector was found to about 140-420 nSv/h. The gamma dose rate evaluated by TLDs/survey meter are in the range of 290-400 nSv/h. Article in Journal/Newspaper Antarc* Antarctica antartic* Arctic Indian Institute of Geomagnetism (IIG): Repository Arctic Indian |
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Open Polar |
collection |
Indian Institute of Geomagnetism (IIG): Repository |
op_collection_id |
ftindinstgeomagn |
language |
English |
topic |
Cosmic rays Thermoluminescence dosimeter Preliminary study Antarctica CR‑39 |
spellingShingle |
Cosmic rays Thermoluminescence dosimeter Preliminary study Antarctica CR‑39 Bakshi, A.K. Pal, Rupali Dhar, Ajay Chougaonkar, M.P. Preliminary study on the measurement of background radiation dose at Antarctica during 32 nd expedition |
topic_facet |
Cosmic rays Thermoluminescence dosimeter Preliminary study Antarctica CR‑39 |
description |
A significant proportion (10%) of the natural background radiation is of cosmic origin. Cosmic ray consists of gamma, protons, electrons, pions, muons, neutrons and low Z nuclei. Due to the geomagnetic effect, cosmic radiation levels at poles are higher. As a consequence, personnel working in Antarctica (or Arctic) are subjected to high level of cosmic radiation. The present study gives the details of the estimation of background radiation (neutrons, gamma and electrons) dose rate around the Indian station at Antartica named "Bharati" measured during 32 nd Indian scientific expedition to Antarctica (32 nd INSEA). The measurement was carried out by passive dosimeters such as TLDs and CR-39 and active dosimeter such as RadEye G portable gamma survey meter. Gamma and electron components were measured using TLDs and survey meter, whereas CR-39 SSNTDs and neutron sensitive TLDs were used for neutron measurements. These detectors were deployed at few selected locations around Bharati station for about 2 months during summer expedition. The neutron detectors used in the study were pre-calibrated with 241 Am-Be fast/thermal neutron source. The fast neutron dose rate measured based on CR-39 detector was found to about 140-420 nSv/h. The gamma dose rate evaluated by TLDs/survey meter are in the range of 290-400 nSv/h. |
format |
Article in Journal/Newspaper |
author |
Bakshi, A.K. Pal, Rupali Dhar, Ajay Chougaonkar, M.P. |
author_facet |
Bakshi, A.K. Pal, Rupali Dhar, Ajay Chougaonkar, M.P. |
author_sort |
Bakshi, A.K. |
title |
Preliminary study on the measurement of background radiation dose at Antarctica during 32 nd expedition |
title_short |
Preliminary study on the measurement of background radiation dose at Antarctica during 32 nd expedition |
title_full |
Preliminary study on the measurement of background radiation dose at Antarctica during 32 nd expedition |
title_fullStr |
Preliminary study on the measurement of background radiation dose at Antarctica during 32 nd expedition |
title_full_unstemmed |
Preliminary study on the measurement of background radiation dose at Antarctica during 32 nd expedition |
title_sort |
preliminary study on the measurement of background radiation dose at antarctica during 32 nd expedition |
publishDate |
2013 |
url |
http://14.139.123.141:8080/jspui/handle/123456789/846 |
geographic |
Arctic Indian |
geographic_facet |
Arctic Indian |
genre |
Antarc* Antarctica antartic* Arctic |
genre_facet |
Antarc* Antarctica antartic* Arctic |
_version_ |
1766275144955723776 |