Magneto-optic trapping of {sup 210}Fr

Journal Article · Wed May 01 04:00:00 EDT 1996 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.76.3522· OSTI ID:288884

Simsarian, J E; Ghosh, A; Gwinner, G; Orozco, L A; Sprouse, G D; Voytas, P A ^[1]

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1. Department of Physics, State University of New York, Stony Brook, New York 11794-3800 (United States)

The alkali element francium has no stable isotopes and has eluded extensive study because sufficient quantities have not been available for detailed investigations. More than 1000 {sup 210}Fr atoms have now been contained in a magneto-optic trap. This number is sufficient to allow extensive studies of Fr atomic properties that are necessary input for future tests of fundamental interactions. The {sup 210}Fr ({ital T}{sub 1/2}=3.2 min) were created in the nuclear reaction {sup 197}Au({sup 18}O,5{ital n}){sup 210}Fr and were extracted from the target and injected into the trap. The ratio of the trap loading rate to the production rate in the target was 10{sup {minus}4}, which is 50 times larger than in previous experiments with {sup 79}Rb. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 288884
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 19 Vol. 76; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
FRANCIUM 210
HEAVY ION REACTIONS
INSTABILITY
ISOTOPES
MAGNETO-OPTICAL EFFECTS
NEUTRON-DEFICIENT ISOTOPES
TRAPPING