A wide angle neutron spin filter system using polarized 3He

Autor:	Collin Broholm, R. W. Erwin, Gordon L. Jones, Shannon Watson, Julia Scherschligt, C.B. Fu, Thomas R. Gentile, Jose A. Rodriguez-Rivera, Wangchun Chen
Rok vydání:	2011
Předmět:	Physics Spectrum analyzer business.industry Polarizer Condensed Matter Physics Polarization (waves) Neutron temperature Electronic Optical and Magnetic Materials law.invention Magnetic field Optical pumping Optics law Neutron Neutron reflectometry Electrical and Electronic Engineering business
Zdroj:	Physica B: Condensed Matter. 406:2419-2423
ISSN:	0921-4526
DOI:	10.1016/j.physb.2010.10.002
Popis:	Polarized 3He neutron spin filters can operate over a wide neutron energy range and provide a large angular acceptance. A compact 3He neutron spin filter system has been developed for the Multi-Axis Crystal Spectrometer at the National Institute of Standards and Technology (NIST) Center for Neutron Research. Sealed 3He cells, polarized by spin-exchange optical pumping, are used as polarizer and analyzer. The polarization of the neutrons incident on the sample is inverted by flipping the polarization of the 3He gas in the polarizer, with only a small effect on the analyzer cells. The cell fabrication process, 3He spin flipper, and the holding magnetic field are discussed and we present the results of a first on-linetest.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::fa60ccd0698ec01ab55b2ec09e353caf https://doi.org/10.1016/j.physb.2010.10.002 Zobrazit plný text záznamu Full Text from ScienceDirect