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many days and nights on that computer at programming and fighting with the instrument. 50% of the beam time was lost due to computer latency. See here for more details (pdf - 1.99 Mi) . 1974 - DEC system

of measuring very small rotations of the neutron polarisation. During this experiment, the neutron beam polarisation achieved by the filter was determined with high accuracy from spin dichroism measurements

polarisation for long times.. F. Tasset is looking at the ratemeter to get a first estimate of the neutron-beam polarisation. Reference 1- H. Humblot, W. Heil, E. Lelièvre-Berna & F. Tasset, Neutron News 8 (1997)

providing about 15 m water equivalent (m.w.e.) against cosmic radiations. It is not fed by a neutron beam and is well-shielded against irradiation from the reactor and neighboring instruments (IN20 and D19)

passing a neutron beam through a bottle filled up with this polarised gas lead to a final beam which is of one polarisation, even for a wide range of neutron wavelengths (white beam polarisation). Part-1: ... depends strongly on its ability of producing an intense and well-polarised neutron beam, and then of analyzing the diffracted beams. This is ...

Mi) In-pile systems for nuclear physics. p. 35 P. AGERON and P.A. BLUM (pdf - 2.40 Mi) The neutron beam tubes. p. 41 G. GOBERT (pdf - 3.37 Mi) The solid-state physics spectrometers. p. 49 J.C. FAUDOU (pdf

the 4-circle neutron diffractometer D8 . Participation in the building of the 4-circle and normal beam neutron diffractometer D15 . Co-responsible of 4-circle diffractometers D9 then D10 . Together with

Coulter and collaborators [1] first showed that it was possible to polarise a polychromatic neutron beam by simple transmission/absorption through a polarised helium-3 filter. At the same time, Francis Tasset

rs. Benoit Mestrallet placing a freshly polarised 3 He cell on D3, the Spin Polarised Hot Neutron Beam Facility. For the transport from Tyrex-2 to the instrument, the cell is placed in a special transport ... the assembly which, on the TAS spectrometer, makes it possible to polarise and analyse the neutron beams.

<ecliptique.com> Two typical cells which, once filled with polarised 3 He by Tyrex-2, are used as neutron beam polarisers ©2019 Laurent Thion <ecliptique.com> Nicolas showing the cell for PASTIS3 (IN20) ©2019