6533b85cfe1ef96bd12bc7d7
RESEARCH PRODUCT
Resonance ionization of holmium for ion implantation in microcalorimeters
P. NaubereitKlaus EberhardtC. MokryK. ChrysalidisS. SchmidtT. KieckRaphael HaasKlaus WendtF. SchneiderH. DorrerCh. E. Düllmannsubject
Nuclear and High Energy PhysicsIon beamChemistrychemistry.chemical_elementMass spectrometry01 natural sciencesIon source010305 fluids & plasmasAtmospheric-pressure laser ionizationIon beam depositionIon implantationIonization0103 physical sciencesAtomic physics010306 general physicsHolmiumInstrumentationdescription
Abstract The determination of the electron neutrino mass by calorimetric measurement of the 163 Ho electron capture spectrum requires ultra-pure samples. Several collaborations, like ECHo or HOLMES, intend to employ microcalorimeters into which 163 Ho is implanted as an ion beam. This makes a selective and additionally very efficient ion source for holmium mandatory. For this purpose, laser resonance ionization of stable holmium 165 Ho was studied, using a three step excitation scheme driven by pulsed Ti:sapphire lasers. Five measurements with sample sizes of 10 14 and 10 15 atoms were performed for the efficiency investigation. In average, an excellent ionization efficiency of 32(5) % could be shown, demonstrating the suitability for ion beam implantation.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-06-01 | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms |