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Proceedings Paper

Monte Carlo simulation of instrument response for direct geometry time-of-flight spectrometers
Author(s): D. R. Bungert; David G. Narehood; Matthew M. Tibbits; Paul E. Sokol
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Paper Abstract

A full Monte Carlo simulation of sample scattering and the final flight path for direct geometry time-of-flight spectrometers has been developed. This allows the scattering from systems with both realistic and complex scattering geometries as well as realistic scattering functions to be modeled. This simulation, PULSCAT, interfaces with commonly available ray tracing programs, such as VITESS, that simulate the incident beam. Spectra with elastic and inelastic features resulting from scattering from isotropic scattering systems in addition to multiple scattering for amorphous scattering systems can be modeled with PULSCAT. The sample geometry used in the simulation is entered through a GUI interface. Due to the large flexibility in the input parameters for the sample, sample environment equipment can be included in the simulations allowing for scattering from ancillary equipment (such as from a standard orange cryostat) to be modeled. This makes PULSCAT a powerful tool for simulating systems and investigating spurious effects present in collected spectra.

Paper Details

Date Published: 21 October 2004
PDF: 9 pages
Proc. SPIE 5536, Advances in Computational Methods for X-Ray and Neutron Optics, (21 October 2004); doi: 10.1117/12.578805
Show Author Affiliations
D. R. Bungert, The Pennsylvania State Univ. (United States)
David G. Narehood, The Pennsylvania State Univ. (United States)
Matthew M. Tibbits, The Pennsylvania State Univ. (United States)
Paul E. Sokol, The Pennsylvania State Univ. (United States)


Published in SPIE Proceedings Vol. 5536:
Advances in Computational Methods for X-Ray and Neutron Optics
Manuel Sanchez del Rio, Editor(s)

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