Please use this identifier to cite or link to this item:
|Title:||In-situ Polarized 3 He-Based Neutron Polarization Analyzer for SNS Magnetism Reflectometer|
|Publisher:||Insitute of Physics|
|Citation:||Lee, W. T., Tong, X., Pierce, J., Fleenor, M., Ismaili, A., Robertson, J. L., Chen, W. C., Gentile, T. R., Hailemariam, A., Goyette, T. R., Parizzi, A., Lauter, V., Klose F., Kaiser, H., Lavelle, C., Baxter, D. V., Jones, G. L., Wexler J., & McCollum L. (2010). In-situ polarized 3 He-based neutron polarization analyzer for SNS magnetism reflectometer. Journal of Physics: Conference Series, International Conference on Neutron Scattering 2009, 3th–7th May 2009. Knoxville, Tennessee, USA, 251(1), Art. No. 012086. doi:10.1088/1742-6596/251/1/012086|
|Abstract:||We report here the construction and neutron transmission test results of an in-situ polarized 3 He-based neutron polarization analyzer system for the Magnetism Reflectometer at the Spallation Neutron Source, Oak Ridge National Laboratory. The analyzer uses the Spin-Exchange Optical Pumping method to polarize the 3 He nuclei of a cell of 3 He gas. Polarized neutrons scattered from the sample are intercepted by the polarized 3 He gas which strongly absorbs neutrons in one spin-state while allowing most neutrons in the other spin-state to pass through. To maintain a stable analyzing efficiency during an experiment, the 3 He gas is continuously polarized in - situ on the instrument. Neutron transmission measurements showed that 73% 3 He polarization was reached in this setup. © 2010, Insitute of Physics.|
|Gov't Doc #:||3451|
|Appears in Collections:||Conference Publications|
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.