SYNRAD, a Monte Carlo synchrotron radiation ray-tracing program

A new module, SYNRAD, has been added to the MOLFLOW software package, allowing the Monte Carlo (MC) simulation of synchrotron radiation (SR) emission. The geometrical three-dimensional (3D) distribution of the photons, power and energy, and spectra can be calculated. A model of the vacuum chamber is generated, and the profiles of SR-induced desorption are obtained by means of SYNRAD. These desorption profiles are then embedded in the vacuum chamber model and the MC program for the calculation of UHV molecular flow is used for obtaining relevant quantities such as, among others, pressure profiles, pumping speed efficiencies and conductances. Results of the application of SYNRAD and MOLFLOW, and comparison with some published data will be given.<
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