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BT-1 Specifications
Layout of BT-1
Credit:
Craig Brown
Specifications
- Maximum beam size: 15 mm width x 50 mm height
- Collimation:
- 60', 15' or 7' before monochromator
- 20' before sample [30' for Ge(733)]
- 7' before detectors
- Monochromators:
Monochromator in-pile
Collimation
(arcmin)Monochr.
2ThetaRelative
Bragg
IntensitiesFlux
(n s-1cm-2)Wavelength
(Å)Relative # of
reflectionsGe(311) 60' 75o 5.78 1,160,000 2.079 50 Ge(311) 15' 75o 2.86 570,000 2.079 50 Ge(311) 7' 75o 1.44 290,000 2.079 50 Cu(311) 60' 90o 1.84 870,000 1.540 100 Cu(311) 15' 90o 1.00 440,000 1.540 100 Cu(311) 7' 90o 0.54 230,000 1.540 100 Ge(733) 60' 120o 0.31 330,000 1.197 200 Ge(733) 15' 120o 0.20 200,000 1.197 200 Ge(733) 7' 120o 0.11 120,000 1.197 200 - Detectors:
- 32 He-3 detectors at 5o intervals
- 13 degree scan range covering 2Theta from 0o to 167o
- Sample Environment:
- temperature from 0.3 K to 2000 K
- vertical magnetic fields
- Sample Can Size:
- Vanadium sample cans are used and can be sealed using various thickness' of either Indium or Lead wire. Sample can sizes and volumes are detailed in the table below:
Size
I.D. (mm)
Length (mm)
Volume (c.c.)
A
6.0
50.0
1.5
B
9.2
50.0
4.0
C
10.8
50.0
5.5
D
12.4
50.0
8.0
E
15.6
50.0
11.5
- Vanadium sample cans are used and can be sealed using various thickness' of either Indium or Lead wire. Sample can sizes and volumes are detailed in the table below:
Created September 3, 2019