TY  - JOUR
AU  - NEXT Collaboration (Navarro, K. E. et al
AU  - Carcel, S.
AU  - Carrion, J. V.
AU  - Lopez, F.
AU  - Lopez-March, N.
AU  - Martin-Albo, J.
AU  - Muñoz Vidal, J.
AU  - Novella, P.
AU  - Querol, M.
AU  - Romo-Luque, C.
AU  - Sorel, M.
AU  - Uson, A.
PY  - 2023
DA  - 2023//
TI  - A compact dication source for Ba2+ tagging and heavy metal ion sensor development
T2  - J. Instrum.
JO  - Journal of Instrumentation
SP  - P07044 - 19pp
VL  - 18
IS  - 7
PB  - IOP Publishing Ltd
KW  - Beam Optics
KW  - Heavy-ion detectors
KW  - Ion identification systems
KW  - Ion sources (positive ions
KW  - negative ions
KW  - electron cyclotron resonance (ECR)
KW  - electron beam (EBIS))
AB  - We present a tunable metal ion beam that delivers controllable ion currents in the picoamp range for testing of dry-phase ion sensors. Ion beams are formed by sequential atomic evaporation and single or multiple electron impact ionization, followed by acceleration into a sensing region. Controllability of the ionic charge state is achieved through tuning of electrode potentials that influence the retention time in the ionization region. Barium, lead, and cadmium samples have been used to test the system, with ion currents identified and quantified using a quadrupole mass analyzer. Realization of a clean Ba2+ ion beam within a bench-top system represents an important technical advance toward the development and characterization of barium tagging systems for neutrinoless double beta decay searches in xenon gas. This system also provides a testbed for investigation of novel ion sensing methodologies for environmental assay applications, with dication beams of Pb2+ and Cd2+ also demonstrated for this purpose.
SN  - 1748-0221
UR  - https://arxiv.org/abs/2303.01522
UR  - https://doi.org/10.1088/1748-0221/18/07/P07044
DO  - 10.1088/1748-0221/18/07/P07044
LA  - English
N1  - WOS:001106703500002
ID  - NEXTCollaborationNavarro_etal2023
ER  -