6533b824fe1ef96bd1281413
RESEARCH PRODUCT
Transport and extraction of radioactive ions stopped in superfluid helium
Jukka P. PekolaWenxue HuangN. TakahashiPeter DendoovenK GloosK GloosK ArutyunovJuha ÄYstöJuha ÄYstösubject
radioactive ion beamNuclear and High Energy PhysicssnowballIon beamChemistryLiquid heliumExtraction (chemistry)superfluid heliumIGISOL TECHNIQUENUCLEAR-SPIN POLARIZATIONSpectral linelaw.inventionIonHelium-4lawPhysics::Accelerator PhysicsPhysics::Atomic PhysicsAtomic physicsNuclear ExperimentInstrumentationBeam (structure)Superfluid helium-4description
A new approach to convert a high energy beam to a low energy one, which is essential for the next generation radioactive ion beam facilities, has been proposed and tested at Jyvaskyla, Finland. An open Ra-223 alpha-decay-recoil source has been used to produce radioactive ions in superfluid helium. The alpha spectra demonstrate that the recoiling Rn-219 ions have been extracted out of liquid helium. This first observation of the extraction of heavy positive ions across the superfluid helium surface was possible thanks to the high sensitivity of radioactivity detection. An efficiency of 36% was obtained for the ion extraction out of liquid helium. (C) 2003 Elsevier Science B.V. All rights reserved.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2003-05-01 |