Monte Carlo modelling of a high resolution diffractometer using statistical time modulation to exploit the long pulse structure at the ICONE HiCANS
Résumé
Low energy accelerator-driven neutron sources are intrinsically limited by the peak flux they can provide. A way to increase the total brilliance of the source is to increase the neutron pulse length. However, the efficient use of time-of-flight techniques on long pulse sources is non trivial. ESS is building long instruments (up to 150 m) to be able to fully exploit the long pulse structure. Such a solution cannot be reasonably implemented on CANS or HiCANS, essentially for cost reasons. We are thus investigating the possibilities of implementing statistical time modulation on a diffraction instrument to be able to use very long pulse structures. We will present Monte-Carlo simulations using statistical time modulation and propose the design of a high-resolution powder diffractometer, which could be installed on the long pulse target station of the ICONE HiCANS source.
Origine : Fichiers produits par l'(les) auteur(s)
Licence : CC BY NC - Paternité - Pas d'utilisation commerciale
Licence : CC BY NC - Paternité - Pas d'utilisation commerciale