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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
Related Links:
- Layout of the BT-1 Instrument.
- BT-1 resolution as FWHM(2theta) vs 2theta or FWHM(Q) vs Q(Å-1).
- Sample Requirements and Safety Considerations
- View Sample BT-1 Data for Each Monochromator and Collimation Setting
- What to include when publishing BT-1 results
- Request time on BT-1
- Current BT-1 schedule
- Available Furnace Options at the NCNR
- Available Refrigerator Options at the NCNR
- Available Magnet Options at the NCNR
- Contact a BT-1 Scientist
Additional Links:
Last modified 11-December-2012 by website owner: NCNR (attn: )