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A Monte Carlo Simulation of Neutron Instrument Resolution Functions

På svenska

Author

  • Anette Vickery
  • Linda Udby
  • Nicolo Violini
  • Joerg Voigt
  • Pascale Deen
  • Kim Lefmann

Summary, in English

In this paper we demonstrate that the Monte Carlo simulation package McStas is a useful tool, not only for instrument design, but also for resolution function calculation. It has been possible to determine analytically the 4 dimensional resolution function of both a direct geometry time of flight neutron spectrometer and a triple axis spectrometer. The obtained resolution functions are directly comparable to and in agreement with the Monte Carlo simulated results. These results are a step towards incorporating a 4 dimensional resolution function into data analysis. For each instrument we show an example of the resolution function calculated at a particluar point in (Q, omega) space.

Publishing year

2013

Language

English

Pages

037-037

Publication/Series

Journal of the Physical Society of Japan

Volume

82

Document type

Journal article

Publisher

Physical Society of Japan

Topic

  • Physical Sciences
  • Natural Sciences

Keywords

  • resolution function
  • triple axis spectrometer
  • direct geometry chopper
  • spectrometer
  • Monte Carlo simulation
  • Cooper-Nathans
  • Popovici

Status

Published

ISBN/ISSN/Other

  • ISSN: 1347-4073