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

Journal Article · 16 December 2024 · Applied Radiation and Isotopes

DOI: https://doi.org/10.1016/j.apradiso.2024.111642 · OSTI ID:2483785

Candia, Andrew C. ^[1]; Bollen, Georg ^[1]; Campbell, Suvan ^[2]; Henriques, Ana ^[1]; Lapierre, Alain ^[1]; Nash, Samuel ^[1]; Schwarz, Stefan ^[1]; Sumithrarachchi, Chandana ^[1]; Villari, Antonio C.C. ^[1]; Domnanich, Katharina A.  ^[1]

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1. Michigan State University, East Lansing, MI (United States)
2. Andrews University, Berrien Springs, MI (United States)

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)%.

• Research Organization: Michigan State University, East Lansing, MI (United States)
• Sponsoring Organization: National Science Foundation (NSF); USDOE; USDOE Office of Science (SC)
• Grant/Contract Number: SC0000661; SC0023633
• OSTI ID: 2483785
• Journal Information: Applied Radiation and Isotopes, Journal Name: Applied Radiation and Isotopes Vol. 217; ISSN 0969-8043
• Publisher: Elsevier BVCopyright Statement
• Country of Publication: United States
• Language: English