Measurement of the 70Ge(d,n)71As cross section from 2.1 MeV to 10 MeV

Yi-Hsuan Lo; Anthony M Miller; Gunnar Brown; Graham F Peaslee; Jonathan W Engle; Paul A Ellison

doi:10.1016/j.apradiso.2024.111654

Measurement of the ⁷⁰Ge(d,n)⁷¹As cross section from 2.1 MeV to 10 MeV

Appl Radiat Isot. 2024 Dec 30:217:111654. doi: 10.1016/j.apradiso.2024.111654. Online ahead of print.

Authors

Yi-Hsuan Lo¹, Anthony M Miller², Gunnar Brown³, Graham F Peaslee³, Jonathan W Engle⁴, Paul A Ellison⁵

Affiliations

¹ Department of Medical Physics University of Wisconsin School of Medicine and Public Health, Madison, WI, 53705, USA.
² Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN, 46556, USA.
³ Department of Physics and Astronomy, University of Notre Dame, Notre Dame, IN, 46556, USA.
⁴ Department of Medical Physics University of Wisconsin School of Medicine and Public Health, Madison, WI, 53705, USA; Department of Radiology, University of Wisconsin School of Medicine and Public Health, Madison, WI, 53705, USA.
⁵ Department of Medical Physics University of Wisconsin School of Medicine and Public Health, Madison, WI, 53705, USA. Electronic address: [email protected].

PMID: 39754961
DOI: 10.1016/j.apradiso.2024.111654

Abstract

This work reports experimental ⁷⁰Ge(d,n)⁷¹As cross sections producing Arsenic-71 (t_1/2 = 65.3 h, 28% β⁺), a potentially useful diagnostic radionuclide. Target stacks containing two ^natGe foils, a ^natNi monitor foil, and an Al degrader were irradiated with 5.5-10 MeV deuterons using an FN Tandem Van de Graaff accelerator. ⁷¹As and ⁶¹Cu, ⁵⁶Co, and ⁵⁸Co (from ^natNi(d,x)) were quantified in the foils by high purity germanium gamma spectrometry. The measured cross sections are larger than previously reported and suitable for producing preclinical quantities of diagnostic radiopharmaceuticals.

Keywords: Arsenic-71; Beam monitor reactions; Cross section; Excitation function; Gamma spectroscopy; Germanium-70; Positron emission tomography; Tandem van de graaff accelerator.