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Vector Monte Carlo for simulation of polarized photons

✍ Scribed by J. E. Fernández; M. Bastiano; A. Tartari

Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
484 KB
Volume
27
Category
Article
ISSN
0049-8246

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✦ Synopsis

Based on a recent analytical solution of vector transport equations in plane geometry including polarization e †ects, a vector scheme for a Monte Carlo code was worked out. The new code, called MC-SHAPE, was developed both to emphasize the miscalculation in using the scalar approach with average polarization kernels and to extend results obtained with the analytical solution of the transport equation to higher orders of interaction. The code includes the Doppler broadening giving the momentum distribution due to electron pre-collision motion. To improve the comparison with analytical results, the code takes some feature from this model, which considers the scattering of a monochromatic and monodirectional collimated beam of x-rays on a semi-inÐnite and homogeneous target. Results of the evolution of the four components of the Stokes vector describing the back-scattered beam, are presented which allow the analysis of the complete polarization characteristics of the multiple scattering of Rayleigh and Compton e †ects. The good agreement found with both deterministic calculations and experimental data indicates the validity of the new code.

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