6533b7d6fe1ef96bd1267163
RESEARCH PRODUCT
Estimating ion confinement times from beam current transients in conventional and charge breeder ECRIS
A. AnnaluruRisto KronholmHannu KoivistoVille ToivanenM. MarttinenTaneli KalvasP. JardinOlli TarvainenOlli TarvainenJ. AngotPredrag UjićS. KosonenL. Maunourysubject
010302 applied physicsplasma sourcesMaterials scienceplasma diagnosticsIon beamStable isotope ratio[PHYS.PHYS.PHYS-ACC-PH]Physics [physics]/Physics [physics]/Accelerator Physics [physics.acc-ph]Ion currentCharge (physics)plasmatekniikka7. Clean energy01 natural sciences010305 fluids & plasmasIonion sourcesplasma dischargesBreeder (animal)0103 physical sciencesAtomic physicsCurrent (fluid)InstrumentationBeam (structure)description
International audience; Cumulative ion confinement times are probed by measuring decaying ion current transients in pulsed material injection mode. The method is applied in a charge breeder and conventional ECRIS yielding mutually corroborative results. The cumulative confinement time estimates vary from approximately 2 ms–60 ms with a clear dependence on the ion charge-to-mass ratio—higher charges having longer residence times. The long cumulative confinement times are proposed as a partial explanation to recently observed unexpectedly high ion temperatures. The results are relevant for rare ion beam (RIB) production as the confinement time and the lifetime of stable isotopes can be used for estimating the extracted RIB production efficiency.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-09-01 |