Electromagnetic field requirements for a lamb-shift spin-filter polarimeter

Journal Article · Fri Sep 01 04:00:00 EDT 1995 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.48843· OSTI ID:254072

Roper, C D; Clegg, T B; Mendez, A J ^[1]

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1. Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708-0308; Duke University, Durham, North Carolina 27708-0308 (United States)

A polarimeter based on the spin-filter cavity is being developed to measure the absolute polarization of low energy deuterons (1 keV) and protons (.5 keV) in real time. Successful polarimetry requires an axial magnetic field uniform to {plus_minus}.05 mT over the central region of the spin-filter cavity. Computer calculations of the magnetic fields were used to design a system of coils and magnetic flux return to meet the uniformity requirement with minimal disturbance of the present polarized ion source. Off-line measurements of the axial magnetic fields produced by the coil/flux return system agreed within the experimental error with the computer calculations. The uniformity attained was {plus_minus}.05 mT over a 13 cm region. {copyright} {ital 1995 American Institute of Physics.}

• Research Organization: Duke University
• DOE Contract Number: FG05-91ER40619
• OSTI ID: 254072
• Report Number(s): CONF-9409103--
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 343; ISSN 0094-243X; ISSN APCPCS
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
66 PHYSICS
COMPUTERIZED SIMULATION
DEUTERON BEAMS
EV RANGE 100-1000
LAMB SHIFT
POLARIMETRY
PROTON BEAMS