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Production of intense beams of polarized negative hydrogen ions by double charge exchange in alkali vapours

Journal Article · · AIP Conf. Proc.; (United States)
DOI:https://doi.org/10.1063/1.34399· OSTI ID:5796357
In the last few years substantial progress on the performance of the electron impact ionizer and the double charge exchanger has been made in our laboratory. A proton or deuteron beam intensity of over 100 ..mu..A has been observed in the positive stage of the source. A polarized negative ion intensity of 6 ..mu..A was obtained after the charge exchange. After acceleration in the ETH EN-tandem accelerator 2 to 3 ..mu..A of polarized deuterons with 90% polarization could be focussed through a 3 mm diameter collimator on a target. This is the highest value ever reported for an accelerated beam.
Research Organization:
Institut fuer Mittelenergiephysik, Eidg. Techn. Hochschule, CH-8093 Zuerich, Switzerland
OSTI ID:
5796357
Report Number(s):
CONF-831180-
Journal Information:
AIP Conf. Proc.; (United States), Journal Name: AIP Conf. Proc.; (United States) Vol. 111:1; ISSN APCPC
Country of Publication:
United States
Language:
English