The `ISIS_TOSCA_preupgrade_Mantid` Instrument

TOSCA (pre-upgrade) at ISIS with Mantid support.

Identification

Site: ISIS
Author: Peter Willendrup (DTU/ESS), Sanghamitra Mukhopadhyay (ISIS STFC)
Origin: DTU/ESS/ISIS
Date: September 2018

Description

The model at hand is adapted from an earlier model by M.Zanetti and represents the
TOSCA instrument as it looked prior to the recent upgrade. The model at hand was
adapted during the MDANSE2018 workshop (http://mdanse2018.essworkshop.org) and by
default uses a model of the incoherent scattering from Benzene, created using
CASTEP (http://www.castep.org ) and converted to Sqw format iFit (http://ifit.mcode.org)

The model is naturally very challenging to run because of the indirect TOF geometry
and would benefit from an adaptive sampling approach.

Please follow instructions at https://github.com/McStasMcXtrace/McCode/wiki/McStas-and-Mantid
to compile with NeXus and generate a Mantid-IDF before attempting to use with Mantid.

To generate the right flightpath length in Mantid, this version of the instrument has
been created with transmitting rather than reflecting analysers, and the detectors are hence
also positioned differently than in the physical instrument.

Example: ISIS_TOSCA_preupgrade_Mantid.instr inc=Benzene_inc_CASTEP_MDANSE2018.sqw eventmode=1 --format=NeXus -n1e7

Input parameters

Parameters in boldface are required; the others are optional.

Name	Unit	Description	Default
inc	filename	Incoherent scattering model to use	"Benzene_inc_CASTEP_MDANSE2018.sqw"
zdepth	m	Thickness of sample	0.002
Emin	meV	Minimum energy to generate at the source	0.01
Emax	meV	Maximum energy to generate at the source	500
eventmode	boolean	Flag to enable event monitors	0

The ISIS_TOSCA_preupgrade_Mantid Instrument

Identification

Description

Input parameters

Links

The `ISIS_TOSCA_preupgrade_Mantid` Instrument