Development of a compact in situ polarized 3He neutron spin filter at Oak Ridge National Laboratory

C. Y. Jiang, X. Tong, D. R. Brown, S. Chi, A. D. Christianson, B. J. Kadron, J. L. Robertson, B. L. Winn

Research output: Contribution to journalReview articlepeer-review

21 Scopus citations

Abstract

We constructed a compact in situ polarized 3He neutron spin filter based on spin-exchange optical pumping which is capable of continuous pumping of the 3He gas while the system is in place in the neutron beam on an instrument. The compact size and light weight of the system simplifies its utilization on various neutron instruments. The system has been successfully tested as a neutron polarizer on the triple-axis spectrometer (HB3) and the hybrid spectrometer (HYSPEC) at Oak Ridge National Laboratory. Over 70% 3He polarization was achieved and maintained during the test experiments. Over 90% neutron polarization and an average of 25% transmission for neutrons of 14.7 meV and 15 meV was also obtained.

Original languageEnglish
Article number075112
JournalReview of Scientific Instruments
Volume85
Issue number7
DOIs
StatePublished - Jul 2014

Fingerprint

Dive into the research topics of 'Development of a compact in situ polarized 3He neutron spin filter at Oak Ridge National Laboratory'. Together they form a unique fingerprint.

Cite this