Neutron instrument simulation and optimization using the software package VITESS

TY - GEN

T1 - Neutron instrument simulation and optimization using the software package VITESS

AU - Lieutenant, Klaus

AU - Zsigmond, Geza

AU - Manoshin, Sergey

AU - Fromme, Michael

AU - Bordallo, Heloisa N.

AU - Champion, J. Dickon M.

AU - Peters, Judith

AU - Mezei, Ferenc

PY - 2004/12/1

Y1 - 2004/12/1

N2 - The software package VITESS for the simulation of neutron scattering instruments is presented. The concept, the main features and the use of the program are described. The new features of version 2.5 are explained in detail. A survey of the existing modules is given. Particular emphasis is given to modules that are used to simulate optical components, such as 'supermirror ensemble', 'monochromator/analyzer' or 'bender'. Examples of simulations of existing and planned instruments are presented, e.g. a powder diffractometer installed on a long pulse target station using wavelength frame multiplication. Simulation results of the existing instrument HET at ISIS are compared to experimental results. Furthermore, a view to the coming version 2.6 is presented. One of its features is discussed in detail: It will be possible to optimize parts of the instruments numerically. As a first application, focusing guides were optimized. General results of this method as well as results for a special instrument are shown. Finally, a general outlook to the planned developments of VITESS is presented.

AB - The software package VITESS for the simulation of neutron scattering instruments is presented. The concept, the main features and the use of the program are described. The new features of version 2.5 are explained in detail. A survey of the existing modules is given. Particular emphasis is given to modules that are used to simulate optical components, such as 'supermirror ensemble', 'monochromator/analyzer' or 'bender'. Examples of simulations of existing and planned instruments are presented, e.g. a powder diffractometer installed on a long pulse target station using wavelength frame multiplication. Simulation results of the existing instrument HET at ISIS are compared to experimental results. Furthermore, a view to the coming version 2.6 is presented. One of its features is discussed in detail: It will be possible to optimize parts of the instruments numerically. As a first application, focusing guides were optimized. General results of this method as well as results for a special instrument are shown. Finally, a general outlook to the planned developments of VITESS is presented.

KW - Monte Carlo simulations

KW - Neutron scattering instruments

KW - Numerical optimization

KW - Optical devices

KW - Software package

UR - http://www.scopus.com/inward/record.url?scp=15944368900&partnerID=8YFLogxK

U2 - 10.1117/12.562814

DO - 10.1117/12.562814

M3 - Conference article

AN - SCOPUS:15944368900

SN - 1605-7422

VL - 5536

SP - 134

EP - 145

JO - Progress in Biomedical Optics and Imaging

JF - Progress in Biomedical Optics and Imaging

M1 - 17

T2 - Advances in Computational Methods for X-Ray and Neutron Optics

Y2 - 3 August 2004 through 5 August 2004

ER -