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[ Identification | Description | Input parameters | Links ]

The SAFARI_MPISI Instrument

Materials Probe for Internal Strain Investigations


  • Site: Necsa
  • Author: Deon Marais (
  • Origin: Necsa
  • Date: September 2013


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

Input parameters

Parameters in boldface are required; the others are optional.
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 331311
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 beam-83.5
mono_dtiltdegMonochromator tilt angle - not implemented yet0
mono_RhmMonochromator horizontal focus radius3.572
port_takeoffdegPort takeoff angle - positive anti clockwise from reactor beam-83.5
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 rotation0.005
inc_slit_widthmIncident slit width 0.00013m to 0.005m0.005
inc_slit_heightmIncident slit height 0m to 0.02m0.02
inc_slit_sepIncident slit separation between width and height. <0:use emperical calc, >=0:distance in m-1
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 beam90
cor_to_detmDistance between sample centre of rotation and detector1.148
diff_slit_dxmDiffracted slit delta x position - positive to left of diffracted beam0
diff_slit_to_cordegDistance between centre of rotation and diffracted slit0.005
diff_slit_widthmDiffracted slit width0.005
diff_slit_heightmDiffracted slit height0.02
full_instrumentWhen 1, simulates the complete instrument. When 0, only simulate from the outlet collimator1


[ Identification | Description | Input parameters | Links ]

Generated on 2024-01-03 11:47:43

Last Modified: Tuesday, 16-Apr-2024 20:05:21 CEST
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