SCD1-general-purpose single-crystal diffractometer-reference instrument WBS 1.7.5. Page: 4 of 9
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SCD1
2
Table 1. Parameters for the single crystal diffractometer SCD1
Component Parameter Value
Moderator Beam line 5BD
Moderator Liquid-H20, decoup, poisGeometry
To chopperBandwidth chopper
Guide system No guides
Collimation and
Beam line
Beam-line shieldingSource-sample distance
Sample-detector distance
Type
Radius to beam center
Length
Distance from moderator
Frequency
Beam width at chopper
Wavelength range to open or close
Type
Radius to beam center
Length
Distance from moderator
Frequency
Beam width at chopper
Wavelength range to open or closeL2.0 -
0.3 to 1.0 m
Horizontal-axis To
250 mm
300 mm
7.0 m
60 Hz
50 mm
0.30 A @ 60 Hz.Disk
250 mm
10 mm
7.5 m
60 Hz
50 mm
0.28 A @ 60 HzUpstream
Before sample
Beam line, distances <4,5 m
Beam line, distances >4.5 m
Steel radial thickness around beam
Paraffin radial thickness around steel
Channel for beam-tube
LengthBeam stop Steel
Paraffin radial thickness around steel
Re-entrant hole in steelSample
Width and height
Standard apertures
Variable aperture
He-filled beam tube
Evacuated to <10-2 torr
0.7 m
0.2 m
0.2 m x 0.2 m
3.5 m
1.6 m x 1.6 m x 2.6 m
0.2 m
0.2m x 0.2 m x 0.5 m1 to 5mm
Area position sensitive
DetectorsType
Width
Height
Distance from sample
Position resolution
Number
Scattering angles
MountingScintillation
300 mm
300 mm
0.3 to 1.0 m
1mm
2
Variable
Automated positioningTechnical Note ANIJSNS/98-4
ES-1.1.8.2-6004-RE-A-00
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Crawford, R.K. SCD1-general-purpose single-crystal diffractometer-reference instrument WBS 1.7.5., report, January 20, 1999; Illinois. (https://digital.library.unt.edu/ark:/67531/metadc622777/m1/4/: accessed April 24, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.