[ Identification | Description | Examples | Input parameters | Links ]

The `ISIS_OSIRIS` Instrument

A simulation of the indirect TOF geometry part of the OSIRIS instrument.

Identification

Site: ISIS
Author: Peter Christiansen with input from Mark Telling, updates by P Willendrup
Origin: DTU Fysik, RISOE and ISIS
Date: November 2015

Description

If LAMBDA = 0, the choppers are disabled, else the choppers are
centered to chop around this wavelength and the source is studied in the
interval LAMBDA +- DLAMBDA.

IMPORTANT NOTES:

1) Monchromator is not realistic in the sense that it does NOT
smear the beam out according to the mosaicity, only does the N=1
reflection, and the d-spread is handled in a simple way

2) The instrument is not validated or certified by ISIS. Is only put in
McStas for completeness.

Examples

(Test cases in bold)

Input parameters

Parameters in boldface are required; the others are optional.

Name	Unit	Description	Default
LAMBDA	AA	Mean wavelength at source	6.66
DLAMBDA	AA	Wavelength spread at source	0.1
GUIDEREFLECTIVITY	1	R0-reflectivity of guide	1.0

The ISIS_OSIRIS Instrument

Identification

Description

Examples

Input parameters

Links

The `ISIS_OSIRIS` Instrument