A neutron beam polarizer for study of parity violation in neutron-nucleus interactions

S I Penttilä,D G Haase,C M Frankle,H Postma,S J Seestrom,Yi-Fen Yen,P P J Delheij,J D Bowman

doi:10.1063/1.48951

A neutron beam polarizer for study of parity violation in neutron-nucleus interactions

S I Penttilä, D G Haase + Show 6 more

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https://doi.org/10.1063/1.48951

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Publication Date: Jan 1, 1995

Affiliation: Triangle Universities Nuclear Laboratory, North Carolina State University, Los Alamos National Laboratory, Delft University of Technology, TRIUMF

#Neutron Beam Polarization #Neutron Beam + Show 8 more

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Abstract

A dynamically‐polarized proton target operating at 5 Tesla and 1 K has been built to polarize an epithermal neutron beam for studies of parity violation in compound‐nuclear resonances. Nearly 0.9 proton polarization was obtained in an electron‐beam irradiated ammonia target. This was used to produce a neutron beam polarization of 0.7 at epithermal energies. The combination of the polarized proton target and the LANSCE spallation neutron source produces the most intense pulsed polarized epithermal neutron beam in the world. The neutron‐beam polarizer is described and methods to determine neutron beam polarization are presented.

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