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McStas: SAFARI_PITSI

[ Identification | Description | Input parameters | Links ]

The SAFARI_PITSI Instrument

Powder Instrument for Transition in Structure Investigations

Identification

  • Site: Necsa
  • Author: Deon Marais (deon.marais@necsa.co.za)
  • Origin: Necsa
  • Date: September 2013

Description

Necsa Neutron Powder Diffractometer located at beam port 5 of the SAFARI-1 research reactor, South Africa

Input parameters

Parameters in boldface are required; the others are optional.
NameUnitDescriptionDefault
source_lam_minAngsMinimum wavelenth of source0.5
source_lam_maxAngsMaximum wavelenth of source2.0
hi_resSelects hi-resolution(1) or hi-intensity(0) reactor beam through primary shutter0
mono_Si_typeMonochromator Silicon type options: 422 400 311 511 111 331 (Mostly used: 331 and 551)551
mono_mosharc minMonochromator horizontal mosaicity30
mono_mosvarc minMonochromator vertical mosaicity30
mono_dxmMonochromator delta x - positive to left of reactor beam0
mono_dymMonochromator delta y - positive upward of reactor beam0
mono_dzmMonochromator delta z - positive along reactor beam0
mono_takeoffdegMonochromator takeoff angle - positive anti-clockwise from reactor beam90.0
mono_dtiltdegMonochromator tilt angle - not implemented yet0
mono_r_hmMonochromator horizontal focus radius (min 5.0 m)5.0
mono_r_vmMonochromator vertical focus radius (min 0.9 m)3.572
port_takeoffdegPort takeoff angle - positive anti clockwise from reactor beam (70 or 90 deg)90.0
inc_slit_rotdegIncident slit delta rotation - not implemented yet0
inc_slit_dxmIncident slit delta x position - positive to left of incident beam0
inc_slit_to_cormIncident slit to sample stage center of rotation0.01
inc_slit_widthmIncident slit width 0.00013m to 0.006m0.006
inc_slit_heightmIncident slit height 0m to 0.05m0.05
inc_slit_sepIncident slit separation between width and height. <0:use emperical calc, >=0:distance in m0
mono_to_cormDistance between monochromator and center of rotation2.5
sample_dxmSample delta x - positive to left of incident beam if sample_dom=00
sample_dymSample delta y - positive upword of incident beam0
sample_dzmSample delta x - positive along of incident beam if sample_dom=00
sample_domdegSample delta omega - positive anti-clockwise from incident beam0
det_takeoffdegDetector takeoff angle - positive anti-clockwise from incident beam-114.375
cor_to_detmDistance between sample centre of rotation and detector1.179
dangle_interestdegDelta angle of interenterest.125
full_instrument1

Links


[ Identification | Description | Input parameters | Links ]

Generated on 2023-09-19 20:01:36


Last Modified: Tuesday, 16-Apr-2024 20:05:20 CEST
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