Hiroshima Air-Over-Ground Analysis: Comparison of DORT and MCNP Calculations

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Monte Carlo (MCNP4B) and Discrete Ordinates (DORT) calculations were carried out to estimate {sup 60}Co and {sup 152}Eu activation as a function of ground range due to neutrons emitted from the Hiroshima A-bomb. Results of ORNL DORT and MCNP calculations using RZ cylindrical air-over-ground models are compared with LANL MCNP results obtained with an XYZ air-over-ground model. All of the calculations were carried out using ENDF/B-VI cross-section data and detailed angle and energy resolved neutron emission spectra from the weapon. Favorable agreement was achieved for the {sup 60}Co and {sup 152}Eu activation for ground ranges out to 1000m from the ... continued below

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28 pages

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Santoro, RT September 4, 2001.

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Description

Monte Carlo (MCNP4B) and Discrete Ordinates (DORT) calculations were carried out to estimate {sup 60}Co and {sup 152}Eu activation as a function of ground range due to neutrons emitted from the Hiroshima A-bomb. Results of ORNL DORT and MCNP calculations using RZ cylindrical air-over-ground models are compared with LANL MCNP results obtained with an XYZ air-over-ground model. All of the calculations were carried out using ENDF/B-VI cross-section data and detailed angle and energy resolved neutron emission spectra from the weapon. Favorable agreement was achieved for the {sup 60}Co and {sup 152}Eu activation for ground ranges out to 1000m from the three calculations.

Physical Description

28 pages

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  • Other Information: PBD: 4 Sep 2001

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  • Report No.: ORNL/TM-2001/160
  • Grant Number: AC05-00OR22725
  • DOI: 10.2172/814271 | External Link
  • Office of Scientific & Technical Information Report Number: 814271
  • Archival Resource Key: ark:/67531/metadc737892

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Office of Scientific & Technical Information Technical Reports

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  • September 4, 2001

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  • Oct. 18, 2015, 6:40 p.m.

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  • March 31, 2016, 1:19 p.m.

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Santoro, RT. Hiroshima Air-Over-Ground Analysis: Comparison of DORT and MCNP Calculations, report, September 4, 2001; United States. (digital.library.unt.edu/ark:/67531/metadc737892/: accessed November 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.