RILIS-ionized mercury and tellurium beams at ISOLDE CERN

This paper presents the results of ionization scheme development for application at the ISOLDE Resonance Ionization Laser Ion Source (RILIS). Two new ionization schemes for mercury are presented: a three-step three-resonance ionization scheme, ionizing via an excitation to a Rydberg level and a thre...

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Detalles Bibliográficos
Autores principales: Day Goodacre, T, Billowes, J, Chrysalidis, K, Fedorov, D V, Fedosseev, V N, Marsh, B A, Molkanov, P L, Rossel, R E, Rothe, S, Seiffert, C, Wendt, K D A
Lenguaje:eng
Publicado: 2017
Materias:
Accelerators and Storage Rings
Acceso en línea:https://dx.doi.org/10.1007/s10751-017-1398-6
http://cds.cern.ch/record/2275303
Descripción
Sumario:This paper presents the results of ionization scheme development for application at the ISOLDE Resonance Ionization Laser Ion Source (RILIS). Two new ionization schemes for mercury are presented: a three-step three-resonance ionization scheme, ionizing via an excitation to a Rydberg level and a three-step two-resonance ionization scheme, with a non-resonant final step to the ionization continuum that corresponded to a factor of four higher ionization efficiency. The efficiency of the optimal mercury ionization scheme was measured, together with the efficiency of a new three-step three resonance ionization scheme for tellurium. The efficiencies of the mercury and tellurium ionization schemes were determined to be 6 % and >18 % respectively.

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