Abstract
A source for nuclear polarized lithium-6 and -7 ions was built following the method of separation of the atomic hyperfine states in a strong inhomogeneous magnetic sextupole field and ionisation of the selected atoms by electron bombardment in a weak homogeneous field. The velocity distribution of the atomic beam formed by a Laval nozzle and the focussing properties of the sextupole magnet were determined using a mechanical velocity selector. After separation of the two isotopes the ion beam has an intensity of 10−9 ampere. As no background of unpolarized lithium ions was found, a vector polarisation of (32±1)% and (24±1)% for lithium-6 and -7 and a tensor polarisation of (−32±1)% for lithium-6 can be expected.
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Herrn Professor Dr. F.Kirchner zum 70. Geburtstag.
Dissertation Hamburg 1966.
Dem Bundesministerium für wissenschaftliche Forschung danken wir für die Bereitstellung der Mittel zur Durchführung dieser Arbeit.
Herrn Dr.Bennewitz vom Physikalischen Institut der Universität Bonn danken wir für wertvolle Ratschläge über Molekularstrahlanlagen.
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Ebinghaus, H., Holm, U., Klapdor, H.V. et al. Eine Quelle für polarisierte Lithiumkerne. Z. Physik 199, 68–81 (1967). https://doi.org/10.1007/BF01326015
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DOI: https://doi.org/10.1007/BF01326015