ANTARCTIC DOSIMETRY A PRELIMINARY STUDY OF BACKGROUND RADIATION LEVELS AT HIGH LATITUDES
A significant proportion (13%) of the natural background radiation is of cosmic origin. Charged particles (e.g. from the Sun), such as protons, interact with the magnetic field of the Earth and can be deflected by it. This effect is reduced at the magnetic poles. Still, particles that enter the Eart...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.611.8405 2023-05-15T14:01:55+02:00 ANTARCTIC DOSIMETRY A PRELIMINARY STUDY OF BACKGROUND RADIATION LEVELS AT HIGH LATITUDES Nikolai Kruetzmann The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.611.8405 http://www.anta.canterbury.ac.nz/documents/gcas electronic projects/nikolai kruetzmann project.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.611.8405 http://www.anta.canterbury.ac.nz/documents/gcas electronic projects/nikolai kruetzmann project.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.anta.canterbury.ac.nz/documents/gcas electronic projects/nikolai kruetzmann project.pdf text ftciteseerx 2016-01-08T14:33:07Z A significant proportion (13%) of the natural background radiation is of cosmic origin. Charged particles (e.g. from the Sun), such as protons, interact with the magnetic field of the Earth and can be deflected by it. This effect is reduced at the magnetic poles. Still, particles that enter the Earth’s atmosphere commonly do not reach its surface, as they are slowed down by scattering and collisions. Therefore, most of their energy reaches the Earth’s surface in the form secondary particles and photons (e.g. X-rays). As charged particles are less deflected at the magnetic poles, an increase of ionising radiation dose similar to what has been reported in aircrew, is expected at high (magnetic) latitudes. Similarly, it is well known that UV radiation levels are raised in Antarctica, where the atmosphere has been compromised. Measurements of UV and X-ray radiation levels were conducted in Antarctica in December and January 2006/2007, in order to investigate the relative intensities of both ionising and non-ionising radiation in the South Polar Region compared to Christchurch, New Zealand. While increased levels of UVA and UVB radiation were measured, the TLD dosimeters used for X-ray measurements were found to Text Antarc* Antarctic Antarctica Unknown Antarctic Christchurch ENVELOPE(164.167,164.167,-82.467,-82.467) New Zealand |
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ftciteseerx |
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English |
description |
A significant proportion (13%) of the natural background radiation is of cosmic origin. Charged particles (e.g. from the Sun), such as protons, interact with the magnetic field of the Earth and can be deflected by it. This effect is reduced at the magnetic poles. Still, particles that enter the Earth’s atmosphere commonly do not reach its surface, as they are slowed down by scattering and collisions. Therefore, most of their energy reaches the Earth’s surface in the form secondary particles and photons (e.g. X-rays). As charged particles are less deflected at the magnetic poles, an increase of ionising radiation dose similar to what has been reported in aircrew, is expected at high (magnetic) latitudes. Similarly, it is well known that UV radiation levels are raised in Antarctica, where the atmosphere has been compromised. Measurements of UV and X-ray radiation levels were conducted in Antarctica in December and January 2006/2007, in order to investigate the relative intensities of both ionising and non-ionising radiation in the South Polar Region compared to Christchurch, New Zealand. While increased levels of UVA and UVB radiation were measured, the TLD dosimeters used for X-ray measurements were found to |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Nikolai Kruetzmann |
spellingShingle |
Nikolai Kruetzmann ANTARCTIC DOSIMETRY A PRELIMINARY STUDY OF BACKGROUND RADIATION LEVELS AT HIGH LATITUDES |
author_facet |
Nikolai Kruetzmann |
author_sort |
Nikolai Kruetzmann |
title |
ANTARCTIC DOSIMETRY A PRELIMINARY STUDY OF BACKGROUND RADIATION LEVELS AT HIGH LATITUDES |
title_short |
ANTARCTIC DOSIMETRY A PRELIMINARY STUDY OF BACKGROUND RADIATION LEVELS AT HIGH LATITUDES |
title_full |
ANTARCTIC DOSIMETRY A PRELIMINARY STUDY OF BACKGROUND RADIATION LEVELS AT HIGH LATITUDES |
title_fullStr |
ANTARCTIC DOSIMETRY A PRELIMINARY STUDY OF BACKGROUND RADIATION LEVELS AT HIGH LATITUDES |
title_full_unstemmed |
ANTARCTIC DOSIMETRY A PRELIMINARY STUDY OF BACKGROUND RADIATION LEVELS AT HIGH LATITUDES |
title_sort |
antarctic dosimetry a preliminary study of background radiation levels at high latitudes |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.611.8405 http://www.anta.canterbury.ac.nz/documents/gcas electronic projects/nikolai kruetzmann project.pdf |
long_lat |
ENVELOPE(164.167,164.167,-82.467,-82.467) |
geographic |
Antarctic Christchurch New Zealand |
geographic_facet |
Antarctic Christchurch New Zealand |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_source |
http://www.anta.canterbury.ac.nz/documents/gcas electronic projects/nikolai kruetzmann project.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.611.8405 http://www.anta.canterbury.ac.nz/documents/gcas electronic projects/nikolai kruetzmann project.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766271979062558720 |