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Coupling of MASH-MORSE Adjoint Leakages with Space- and Time-Dependent Plume Radiation Sources.

DE2001786752

Publication Date	2001
Personal Author	Slater, C. O.
Page Count	124
Abstract	In the past, forward-adjoint coupling procedures in air-over-ground geometry have typically involved forward fluences arising from a point source a great distance from a target or vehicle system. Various processing codes were used to create locialized forward fluence files that could be used to couple with the MASH-MORSE adjoint leakages. In recent years, radiation plumes that result from reactor accidents or similar incidents have been modeled by others, and the source space and energy distributions as a function of time have been calculated. Additionally, with the point kernel method, they were able to calculate in relatively quick fashion-free-field radiation doses for target moving within the fluence field or for stationary targets within the field, the time dependence for the latter case coming from the changes in position, shape, source strength, and spectra of the plume with time. The work described herein applies the plume source to the MASH-MORSE coupling procedure. The plume source replaces the point source for generating the forward fluences that are folded with MASH-MORSE adjoint leakages.
Keywords	Dose rate Plumes Radiation protection Point kernels Couplings Detectors
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Oak Ridge National Lab., TN.; Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200201
Contract Number	AC05-00OR22725

Coupling of MASH-MORSE Adjoint Leakages with Space- and Time-Dependent Plume Radiation Sources.

Coupling of MASH-MORSE Adjoint Leakages with Space- and Time-Dependent Plume Radiation Sources.
DE2001786752

Publication Date	2001
Personal Author	Slater, C. O.
Page Count	124
Abstract	In the past, forward-adjoint coupling procedures in air-over-ground geometry have typically involved forward fluences arising from a point source a great distance from a target or vehicle system. Various processing codes were used to create locialized forward fluence files that could be used to couple with the MASH-MORSE adjoint leakages. In recent years, radiation plumes that result from reactor accidents or similar incidents have been modeled by others, and the source space and energy distributions as a function of time have been calculated. Additionally, with the point kernel method, they were able to calculate in relatively quick fashion-free-field radiation doses for target moving within the fluence field or for stationary targets within the field, the time dependence for the latter case coming from the changes in position, shape, source strength, and spectra of the plume with time. The work described herein applies the plume source to the MASH-MORSE coupling procedure. The plume source replaces the point source for generating the forward fluences that are folded with MASH-MORSE adjoint leakages.
Keywords	Dose rate Plumes Radiation protection Point kernels Couplings Detectors
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Oak Ridge National Lab., TN.; Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200201
Contract Number	AC05-00OR22725