Designing new guides and instruments using McStas

E. Farhi, T. Hansen, A. Wildes, R. Ghosh, K. Lefmann

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    With the increasing complexity of modem neutron-scattering instruments, the need for powerful tools to optimize their geometry and physical performances (flux, resolution, divergence, etc.) has become essential. As the usual analytical methods reach their limit of validity in the description of fine effects, the use of Monte Carlo simulations, which can handle these latter, has become widespread. The McStas program was developed at Riso National Laboratory in order to provide neutron scattering instrument scientists with an efficient and flexible tool for building Monte Carlo simulations of guides, neutron optics and instruments [1]. To date, the McStas package has been extensively used at the Institut Laue-Langevin, Grenoble, France, for various studies including cold and thermal guides with ballistic geometry, diffractometers, triple-axis, backscattering and time-of-flight spectrometers [2]. In this paper, we present some simulation results concerning different guide geometries that may be used in the future at the Institut Laue-Langevin. Gain factors ranging from two to five may be obtained for the integrated intensities, depending on the exact geometry, the guide coatings and the source.
    Original languageEnglish
    JournalApplied Physics A: Materials Science & Processing
    Volume74
    Issue numberS
    Pages (from-to)S1471-S1473
    ISSN0947-8396
    DOIs
    Publication statusPublished - 2002

    Fingerprint

    Dive into the research topics of 'Designing new guides and instruments using McStas'. Together they form a unique fingerprint.

    Cite this