Preparation of a 73As source sample for application in an offline ion source

Andrew C Candia; Georg Bollen; Suvan Campbell; Ana Henriques; Alain Lapierre; Samuel Nash; Stefan Schwarz; Chandana Sumithrarachchi; Antonio C C Villari; Katharina A Domnanich

doi:10.1016/j.apradiso.2024.111642

Preparation of a ⁷³As source sample for application in an offline ion source

Appl Radiat Isot. 2024 Dec 16:217:111642. doi: 10.1016/j.apradiso.2024.111642. Online ahead of print.

Authors

Affiliations

¹ Facility for Rare Isotope Beams, Michigan State University, 640 South Shaw Lane, East Lansing, 48824, MI, USA; Department of Chemistry, Michigan State University, 640 South Shaw Lane, East Lansing, 48824, MI, USA. Electronic address: [email protected].
² Facility for Rare Isotope Beams, Michigan State University, 640 South Shaw Lane, East Lansing, 48824, MI, USA. Electronic address: [email protected].
³ Andrews University, 8975 Old 31, Berrien Springs, 49104, MI, USA. Electronic address: [email protected].
⁴ Facility for Rare Isotope Beams, Michigan State University, 640 South Shaw Lane, East Lansing, 48824, MI, USA. Electronic address: [email protected].
⁵ Facility for Rare Isotope Beams, Michigan State University, 640 South Shaw Lane, East Lansing, 48824, MI, USA. Electronic address: [email protected].
⁶ Facility for Rare Isotope Beams, Michigan State University, 640 South Shaw Lane, East Lansing, 48824, MI, USA. Electronic address: [email protected].
⁷ Facility for Rare Isotope Beams, Michigan State University, 640 South Shaw Lane, East Lansing, 48824, MI, USA. Electronic address: [email protected].
⁸ Facility for Rare Isotope Beams, Michigan State University, 640 South Shaw Lane, East Lansing, 48824, MI, USA. Electronic address: [email protected].
⁹ Facility for Rare Isotope Beams, Michigan State University, 640 South Shaw Lane, East Lansing, 48824, MI, USA. Electronic address: [email protected].
¹⁰ Facility for Rare Isotope Beams, Michigan State University, 640 South Shaw Lane, East Lansing, 48824, MI, USA; Department of Chemistry, Michigan State University, 640 South Shaw Lane, East Lansing, 48824, MI, USA. Electronic address: [email protected].

PMID: 39721375
DOI: 10.1016/j.apradiso.2024.111642

Abstract

For the generation of beams with the offline ion source at the Facility for Rare Isotope Beams (FRIB), suitable source samples are required. Arsenic-73 is a frequently requested user beam due to its significance in nuclear structure studies and astrophysics. In this work, we outline the process of preparing a ⁷³As source sample, containing (5.76 ± 0.37)∗10¹⁴ atoms of ⁷³As, which was successfully used to generate a ⁷³As beam for a multi-day user experiment. Silver arsenate was chosen as the chemical form, due to its favorable volatility within the designated operating temperature range. We refined the precipitation method using stable arsenic prior to its application with the ⁷³As sample, resulting in precipitation yields of (99.4 ± 4.5)%.

Keywords: As-73; Batch-Mode Ion Source (BMIS); Facility for Rare Isotope Beams (FRIB); Radiochemical precipitation; Source sample.