Measurement of the polarized neutron---polarized {sup 3}He total cross section

Journal Article · Wed May 10 04:00:00 EDT 1995 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.48125· OSTI ID:172220

Keith, C D; Gould, C R; Haase, D G; Seely, M L ^[1]; Huffman, P R; Roberson, N R; Tornow, W; Wilburn, W S ^[2]

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1. North Carolina State University, Raleigh, North Carolina 27695 (United States)
2. Duke University, Durham, North Carolina 27708 (United States)

The first measurements of polarized neutron--polarized {sup 3}He scattering in the few MeV energy region are reported. The total cross section difference {Delta}{sigma}{sub {ital T}} for transversely polarized target and beam has been measured for neutron energies between 1.9 and 7.5 MeV. Comparison is made to predictions of {Delta}{sigma}{sub {ital T}} using various descriptions of the {sup 4}He continuum. A brute-force polarized target of solid {sup 3}He has been developed for these measurements. The target is 4.3{times}10{sup 22} atoms/cm{sup 2} thick and is polarized to 38% at 7 Telsa and 12 mK. {copyright} {ital 1995} {ital American} {ital Institute} {ital of} {ital Physics}.

• Sponsoring Organization: USDOE
• OSTI ID: 172220
• Report Number(s): CONF-9405132--
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 334; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
HELIUM 3 TARGET
MEV RANGE
NEUTRON REACTIONS
POLARIZED BEAMS
POLARIZED TARGETS
TOTAL CROSS SECTIONS