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New cryomagnet for experiments at instruments of the JCNS
A successful specification test: The sample environment group of the instruments operated by the Jülich Centre for Neutron Science (JCNS) at the FRM II offers an vertical 5 Tesla cryomagnet in the near future. After a test phase, the cryomagnet will be available for routine operation in spring 2012.
Harald Schneider, head of the JCNS sample environment group, during the specification test.
Cryomagnets are used for basic research in the field of magnetism. They help investigating magnetic effects in hard matter, for example in materials of the IT- and nanotechnology.
The JCNS’ superconducting cryomagnet is asymmetrical and therefore also useable in the scope of polarisation analysis. A very special feature is the active shielding. In the centre the cryostat has a magnetic field of 5 Tesla, this tallies with 50 000 Gauss. Just one metre apart it is only 1 Gauss, what corresponds to the average magnetic field of the Earth. Thus it can be ensured that neighbouring instruments won’t be influenced or hindered in their measurements.
maximum field: 5 Tesla
split: 30 mm
vertical access angle: ± 5°
horizontal access angle: 330 °
temperature: 1.6-330 Kelvin