General description
PRISM: 2-axis polarised neutron reflectometer
Position |
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Beam tube |
Cold neutron guide G2 |
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Monochromator |
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Type |
Monochromating supermirror |
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Incident wavelength |
0.4 nm |
|
Resolution |
Dl/l = 0.05 |
|
Type of instrument |
2-axis horizontal scattering |
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Polarisers |
|
Type |
Polarising supermirrors |
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Flipper |
Mezei type |
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Sample |
|
Max. flux at specimen |
5.105 n/s.cm² |
For dq = 0.03° |
Beam height |
15 mm |
|
Angular resolution |
from 0.01° to 0.06° |
|
Angular range |
0.2° to 120° |
At 300K |
|
0.2° to 15° |
At 4K |
Dynamic range |
105 to 106 |
1 cm² sample (8 hours full analysis scan; dq = 0.05°) |
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Detection |
|
He3 detector |
|
|
Background |
1 count/10 min |
Beam opened |
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|
|
XY multidetector |
|
Avail. Dec. 1999 |
Type |
microstrip |
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Background |
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|
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Ancillary equipment |
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Field |
0-1.2 T rotating field |
From 77K to 300K |
|
7 T (horizontal along the beam) |
Available (Dec. 1999) |
Cryostat |
4K-300K (2 T) |
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LABORATOIRE LEON BRILLOUIN (CEA/CNRS) mise à jour : 30/07/99