PERCEVAL v4.0 : A New PC Code for Gamma Radiation Studies Based upon Most Recent Development about Point Kernel

Bindel, Laurent; Clouet, Laurent; Castanier, Eric; Bonnet, J.; Fleury, Guillaume; Vermuse, Manuel; Gamess, André; Lejeune, E

doi:10.1080/00223131.2000.10874941

Cited by 4 publications

(2 citation statements)

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“…When only a point source is present in an empty scenario, the dose rate value in a point at a distance from the source can be expressed as (4) where is the dose rate at a unit distance. This case can be linearly expanded to the situation of immaterial volumetric sources in the area, each of them represented by a …”

Section: Dose Calculation From Sources With Known Activitiesmentioning

confidence: 99%

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Dose rate assessment in complex geometries

Vela¹,

Burgos²,

Pérez³

2006

IEEE Trans. Nucl. Sci.

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A code developed for calculating dose rate maps in scenarios with complex geometries and gamma radiation sources is presented in this work. It is based on the point kernel method. The code computes photon flux and dose rate in preselected positions due to volumetric radioactive sources in the presence of other nonemitting materials acting as shielding. Buildup factors are considered to account for radiation scattering effects, using the Geometric-Progression formula in the fitting function. The major advantage of this code is that there are no constraints for the generation of geometries. Any type and number of volumes can be loaded to generate the scenario by using standard three-dimensional computer-aided design tools. The geometry is imported as a DXF format file. In a second step, material and radiometric attributes are imported for each volume. Volumetric radioactive sources are represented by a set of single emitting point sources distributed within its geometry. The code output has been verified in three different ways: by comparing with results from other point-kernel packages, by comparing with estimates obtained with a Monte Carlo code, and by contrasting with direct experimental measurements. Results of these comparisons are presented and discussed. Finally, intrinsic limitations of the code are discussed.Index Terms-Dose rate calculation, point kernel, three-dimensional (3-D) modeling.

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Section: Dose Calculation From Sources With Known Activitiesmentioning

confidence: 99%

“…When time is an issue, Manuscript for instance, in the generation of dose maps with hundreds of points in industrial facilities, methods based on the point kernel algorithms are usually used. See for instance [4] and [5]. A classic work in dose rate assessment is PUTZ [6].…”

Section: Introductionmentioning

confidence: 99%