On Weapons Plutonium in the Arctic Environment (Thule, Greenland)
This thesis concerns a nuclear accident that occurred in the Thule (Pituffik) area, NW Greenland in 1968, called the Thule accident. Results are based on different analytical techniques, i.e. gamma spectrometry, alpha spectrometry, ICP-MS, SEM with EDX and different sediment models, i.e. (CRS, CIC)....
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Format: | Doctoral or Postdoctoral Thesis |
Language: | English |
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Risø National Laboratory
2002
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Online Access: | https://lup.lub.lu.se/record/464579 |
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ftulundlup:oai:lup.lub.lu.se:a04274cf-697f-4095-8e51-b1d1bceb3285 2023-05-15T15:19:00+02:00 On Weapons Plutonium in the Arctic Environment (Thule, Greenland) Eriksson, Mats 2002 https://lup.lub.lu.se/record/464579 eng eng Risø National Laboratory https://lup.lub.lu.se/record/464579 urn:isbn:87-550-3006-8 Radiology Nuclear Medicine and Medical Imaging Nuclear physics Kärnfysik Nuclear medicine radiobiology Nukleärmedicin radiobiologi Nuclear engineering and technology Kärnteknik realtime digital image systems SEM ICP-MS alpha spectrometry gamma spectrometry heterogeneous activity concentration hot particle separation technique isotopic ratio inventory source term fallout americium uranium plutonium radionuclide Bylot Sound Greenland Thule environmental radioactivity nuclear accident thesis/doccomp info:eu-repo/semantics/doctoralThesis text 2002 ftulundlup 2023-02-01T23:27:07Z This thesis concerns a nuclear accident that occurred in the Thule (Pituffik) area, NW Greenland in 1968, called the Thule accident. Results are based on different analytical techniques, i.e. gamma spectrometry, alpha spectrometry, ICP-MS, SEM with EDX and different sediment models, i.e. (CRS, CIC). The scope of the thesis is the study of hot particles. Studies on these have shown several interesting features, e.g. that they carry most of the activity dispersed from the accident, moreover, they have been very useful in the determination of the source term for the Thule accident debris. Paper I, is an overview of the results from the Thule-97 expedition. This paper concerns the marine environment, i.e. water, sediment and benthic animals in the Bylot Sound. The main conclusions are; that plutonium is not transported from the contaminated sediments into the surface water in this shelf sea, the debris has been efficiently buried in the sediment to great depth as a result of biological activity and transfer of plutonium to benthic biota is low. Paper II, concludes that the resuspension of accident debris on land has been limited and indications were, that americium has a faster transport mechanism from the catchment area to lakes than plutonium and radio lead. Paper III, is a method description of inventory calculation techniques in sediment with heterogeneous activity concentration, i.e. hot particles are present in the samples. It is concluded that earlier inventory estimates have been under estimated and that the new inventory is about 3.8 kg (10 TBq) of 239,240Pu. Paper IV, describes hot particle separation/identification techniques using real-time digital image systems. These techniques are much faster than conventionally used autoradiography and give the results in real time. Paper V, is a study of single isolated hot particles. The most interesting result is that the fission material in the weapons involved in the accident mostly consisted of 235U (about 4times more in mass than 239Pu). This paper concludes ... Doctoral or Postdoctoral Thesis Arctic Greenland Pituffik Thule Lund University Publications (LUP) Arctic Bylot Sound ENVELOPE(-69.746,-69.746,76.414,76.414) Greenland Pituffik ENVELOPE(-68.679,-68.679,76.545,76.545) |
institution |
Open Polar |
collection |
Lund University Publications (LUP) |
op_collection_id |
ftulundlup |
language |
English |
topic |
Radiology Nuclear Medicine and Medical Imaging Nuclear physics Kärnfysik Nuclear medicine radiobiology Nukleärmedicin radiobiologi Nuclear engineering and technology Kärnteknik realtime digital image systems SEM ICP-MS alpha spectrometry gamma spectrometry heterogeneous activity concentration hot particle separation technique isotopic ratio inventory source term fallout americium uranium plutonium radionuclide Bylot Sound Greenland Thule environmental radioactivity nuclear accident |
spellingShingle |
Radiology Nuclear Medicine and Medical Imaging Nuclear physics Kärnfysik Nuclear medicine radiobiology Nukleärmedicin radiobiologi Nuclear engineering and technology Kärnteknik realtime digital image systems SEM ICP-MS alpha spectrometry gamma spectrometry heterogeneous activity concentration hot particle separation technique isotopic ratio inventory source term fallout americium uranium plutonium radionuclide Bylot Sound Greenland Thule environmental radioactivity nuclear accident Eriksson, Mats On Weapons Plutonium in the Arctic Environment (Thule, Greenland) |
topic_facet |
Radiology Nuclear Medicine and Medical Imaging Nuclear physics Kärnfysik Nuclear medicine radiobiology Nukleärmedicin radiobiologi Nuclear engineering and technology Kärnteknik realtime digital image systems SEM ICP-MS alpha spectrometry gamma spectrometry heterogeneous activity concentration hot particle separation technique isotopic ratio inventory source term fallout americium uranium plutonium radionuclide Bylot Sound Greenland Thule environmental radioactivity nuclear accident |
description |
This thesis concerns a nuclear accident that occurred in the Thule (Pituffik) area, NW Greenland in 1968, called the Thule accident. Results are based on different analytical techniques, i.e. gamma spectrometry, alpha spectrometry, ICP-MS, SEM with EDX and different sediment models, i.e. (CRS, CIC). The scope of the thesis is the study of hot particles. Studies on these have shown several interesting features, e.g. that they carry most of the activity dispersed from the accident, moreover, they have been very useful in the determination of the source term for the Thule accident debris. Paper I, is an overview of the results from the Thule-97 expedition. This paper concerns the marine environment, i.e. water, sediment and benthic animals in the Bylot Sound. The main conclusions are; that plutonium is not transported from the contaminated sediments into the surface water in this shelf sea, the debris has been efficiently buried in the sediment to great depth as a result of biological activity and transfer of plutonium to benthic biota is low. Paper II, concludes that the resuspension of accident debris on land has been limited and indications were, that americium has a faster transport mechanism from the catchment area to lakes than plutonium and radio lead. Paper III, is a method description of inventory calculation techniques in sediment with heterogeneous activity concentration, i.e. hot particles are present in the samples. It is concluded that earlier inventory estimates have been under estimated and that the new inventory is about 3.8 kg (10 TBq) of 239,240Pu. Paper IV, describes hot particle separation/identification techniques using real-time digital image systems. These techniques are much faster than conventionally used autoradiography and give the results in real time. Paper V, is a study of single isolated hot particles. The most interesting result is that the fission material in the weapons involved in the accident mostly consisted of 235U (about 4times more in mass than 239Pu). This paper concludes ... |
format |
Doctoral or Postdoctoral Thesis |
author |
Eriksson, Mats |
author_facet |
Eriksson, Mats |
author_sort |
Eriksson, Mats |
title |
On Weapons Plutonium in the Arctic Environment (Thule, Greenland) |
title_short |
On Weapons Plutonium in the Arctic Environment (Thule, Greenland) |
title_full |
On Weapons Plutonium in the Arctic Environment (Thule, Greenland) |
title_fullStr |
On Weapons Plutonium in the Arctic Environment (Thule, Greenland) |
title_full_unstemmed |
On Weapons Plutonium in the Arctic Environment (Thule, Greenland) |
title_sort |
on weapons plutonium in the arctic environment (thule, greenland) |
publisher |
Risø National Laboratory |
publishDate |
2002 |
url |
https://lup.lub.lu.se/record/464579 |
long_lat |
ENVELOPE(-69.746,-69.746,76.414,76.414) ENVELOPE(-68.679,-68.679,76.545,76.545) |
geographic |
Arctic Bylot Sound Greenland Pituffik |
geographic_facet |
Arctic Bylot Sound Greenland Pituffik |
genre |
Arctic Greenland Pituffik Thule |
genre_facet |
Arctic Greenland Pituffik Thule |
op_relation |
https://lup.lub.lu.se/record/464579 urn:isbn:87-550-3006-8 |
_version_ |
1766349194062200832 |