Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1813279 | Physica B: Condensed Matter | 2009 | 4 Pages |
Abstract
We discuss the development and characterisation of a new in situ spin exchange optical pumping (SEOP) based 3He neutron spin filter polarisation device. We present results from a recent test of the prototype system developed with the Institut Laue-Langevin. The polariser was installed on the polarised reflectometer CRISP at ISIS in the analyser position. The 3He was pumped continuously in situ on the beamline. The system also integrated a 3He adiabatic fast passage spin flipper that allowed reversal of the 3He and therefore neutron polarisation state, allowing for measurement of all four polarisation cross-sections. The system was run for a number of days reaching a 3He polarisation of 63%.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
S. Boag, E. Babcock, K.H. Andersen, M. Becker, T.R. Charlton, W.C. Chen, R.M. Dalgliesh, S.D. Elmore, C.D. Frost, T.R. Gentile, R. Lopez Anton, S.R. Parnell, A.K. Petoukhov, M.W.A. Skoda, T. Soldner,