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RESEARCH PRODUCT
An ion guide for the production of a low energy ion beam of daughter products of α-emitters
Sami Rinta-antilaSaidur RahamanJuha ÄYstöUlrike HagerA. PopovB. TordoffJ.k.p. LeeT. KesslerIain MooreTommi EronenS. GulickV.-v. ElomaaT. SonodaPasi Karvonensubject
Nuclear and High Energy PhysicsIon beam010308 nuclear & particles physicsChemistrySeparator (oil production)Ion gun01 natural sciences7. Clean energy3. Good healthIonIon beam depositionElectric field0103 physical sciencesAlpha decayAtomic physics010306 general physicsElectroplatingNuclear ExperimentInstrumentationdescription
A new ion guide has been modeled and tested for the production of a low energy ($\approx$ 40 kV) ion beam of daughter products of alpha-emitting isotopes. The guide is designed to evacuate daughter recoils originating from the $\alpha$-decay of a $^{233}$U source. The source is electroplated onto stainless steel strips and mounted along the inner walls of an ion guide chamber. A combination of electric fields and helium gas flow transport the ions through an exit hole for injection into a mass separator. Ion guide efficiencies for the extraction of $^{229}$Th$^{+}$ (0.06%), $^{221}$Fr$^{+}$ (6%), and $^{217}$At$^{+}$ (6%) beams have been measured. A detailed study of the electric field and gas flow influence on the ion guide efficiency is described for two differing electric field configurations.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2006-05-22 | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms |