Study: First time in history xenon-133 detected in Southern Hemisphere Cs-137 also measured Darwin station, Australia | |
Anonymous Coward (OP) User ID: 11358343 United States 03/02/2012 08:46 AM Report Abusive Post Report Copyright Violation | Re: Study: First time in history xenon-133 detected in Southern Hemisphere Cs-137 also measured Darwin station, Australia Title: Xenon-133 and caesium-137 releases into the atmosphere from the Fukushima Dai-ichi nuclear power plant: determination of the source term, atmospheric dispersion, and deposition Source: Atmospheric Chemistry and Physics; Atmos. Chem. Phys., 12, 23132343, 2012 www.atmos-chem-phys.net/12/2313/2012/ doi:10.5194/acp-12-2313-2012 Authors: A. Stohl1, P. Seibert2, G. Wotawa3, D. Arnold2,4, J. F. Burkhart1, S. Eckhardt1, C. Tapia5, A. Vargas4, and T. J. Yasunari6 1 NILU Norwegian Institute for Air Research, Kjeller, Norway 2 Institute of Meteorology, University of Natural Resources and Life Sciences, Vienna, Austria 3 Central Institute for Meteorology and Geodynamics, Vienna, Austria 4 Institute of Energy Technologies (INTE), Technical University of Catalonia (UPC), Barcelona, Spain 5 Department of Physics and Nucelar Engineering (FEN),Technical University of Catalonia (UPC), Barcelona, Spain 6 Universities Space Research Association, Goddard Earth Sciences and Technology and Research, Columbia, MD 21044, USA Date: Received: 8 October 2011 Published in Atmos. Chem. Phys. Discuss.: 20 October 2011 Revised: 1 February 2012 Accepted: 23 February 2012 Published: 1 March 2012 |
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Monbazillac
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Atom-Boy
User ID: 11279027 Japan 03/02/2012 09:12 AM Report Abusive Post Report Copyright Violation | Re: Study: First time in history xenon-133 detected in Southern Hemisphere Cs-137 also measured Darwin station, Australia Xenon-133 is relative harmless compared to all the other Products from F'Shima! Last Edited by The real and almighty Atom-Boy on 03/02/2012 09:16 AM G.Y.!B.E. |
Anonymous Coward User ID: 1295673 United States 03/02/2012 09:31 AM Report Abusive Post Report Copyright Violation | Re: Study: First time in history xenon-133 detected in Southern Hemisphere Cs-137 also measured Darwin station, Australia Regarding 133Xe, we find a total release of 16.7 (uncertainty range 13.420.0) EBq, which is the largest radioactive noble gas release in history not associated with nuclear bomb testing. There is strong evidence that the first strong 133Xe release started very early, possibly immediately after the earthquake and the emergency shutdown on 11 March at 06:00 UTC. The entire noble gas inventory of reactor units 13 was set free into the atmosphere between 11 and 15 March 2011. For 137Cs, the inversion results give a total emission of 35.8 (23.350.1) PBq, or about 42% of the estimated Chernobyl emission. Our results indicate that 137Cs emissions peaked on 1415 March but were generally high from 12 until 19 March, when they suddenly dropped by orders of magnitude exactly when spraying of water on the spent-fuel pool of unit 4 started. This indicates that emissions were not only coming from the damaged reactor cores, but also from the spent-fuel pool of unit 4 and confirms that the spraying was an effective countermeasure. [link to www.atmos-chem-phys-discuss.net] ~ bug |
Anonymous Coward (OP) User ID: 11358343 United States 03/02/2012 09:33 AM Report Abusive Post Report Copyright Violation | Re: Study: First time in history xenon-133 detected in Southern Hemisphere Cs-137 also measured Darwin station, Australia [snip] Quoting: Anonymous Coward 1295673 Regarding 133Xe, we find a total release of 16.7 (uncertainty range 13.420.0) EBq, which is the largest radioactive noble gas release in history not associated with nuclear bomb testing. There is strong evidence that the first strong 133Xe release started very early, possibly immediately after the earthquake and the emergency shutdown on 11 March at 06:00 UTC. The entire noble gas inventory of reactor units 13 was set free into the atmosphere between 11 and 15 March 2011. For 137Cs, the inversion results give a total emission of 35.8 (23.350.1) PBq, or about 42% of the estimated Chernobyl emission. Our results indicate that 137Cs emissions peaked on 1415 March but were generally high from 12 until 19 March, when they suddenly dropped by orders of magnitude exactly when spraying of water on the spent-fuel pool of unit 4 started. This indicates that emissions were not only coming from the damaged reactor cores, but also from the spent-fuel pool of unit 4 and confirms that the spraying was an effective countermeasure. [link to www.atmos-chem-phys-discuss.net] ~ bug Thanks bug. |
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