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Optics

We provide neutron optical components for optimising neutron instruments. From monochromator and analyser crystals to converging guides, bandpass filters and polarising 3He spin-filters and supermirror devices, the ILL neutron optics lab provides the know-how and the in-house manufacturing capabilities. We develop and produce the neutron optical components required to maintain the leading role of the ILL in neutron scattering.

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The 3He Team

JULLIEN David (head of group)

+33 4 76 20 76 14

djullien(at)ill.eu

MARTY Sabine (student)

+33 4 76 20 74 71

martys(at)ill.eu

MOUVEAU Pascal (technician)

+33 4 76 20 76 26

mouveau(at)ill.eu

PETOUKHOV Sasha (scientist)

+33 4 76 20 70 58

petukhov(at)ill.eu

RATEL Agnes (secretary)

+33 4 76 20 70 85

aratel(at)ill.eu

RIZZO Antonello (technician)

+33 4 76 20 73 28

rizzo@ill.eu

 

 

3He spin filters

The 3He neutron absorption cross section is extremely spin dependent. The polarised gas acts as a neutron spin-filter (NSF) both for creating the polarisation of the incident beam and for analysing the polarisation after the sample.
Now available in sufficiently large quantities for several instruments to be supplied every day via the Tyrex central facility, 3He Neutron Spin Filters (NSF) Cells are becoming an attractive solution for neutron beam polarisation over large solid angles and for the whole range of neutron wavelengths.