The 40Ar(d, p)41Ar cross section between 3–7 MeV. (December 2022)

• Record Type: Journal Article
• Authors: Bleuel, D.L.; Anderson, S.G.; Bernstein, L.A.; Brown, J.A.; Caggiano, J.A.; Goldblum, B.L.; Gordon, J.M.; Hall, J.M.; Harrig, K.P.; Johnson, M.S.; Laplace, T.A.; Marsh, R.A.; Montague, M.E.; Ratkiewicz, A.; Rusnak, B.; Velsko, C.A.
• Is Part Of: Applied radiation and isotopes. Volume 190(2022)
• Publication Date: 2022-12
• Subjects: Argon cross section γray activation; Radiology -- Periodicals; Radiation -- Industrial applications -- Periodicals; Nuclear chemistry -- Periodicals; Internet resource; Periodical; 660.298
• DOI: 10.1016/j.apradiso.2022.110509
• Languages: English
• ISSNs: 0969-8043

Abstract

Abstract: To determine the safety of using argon as a deuteron beam stopping material, the 40 Ar(d, p) 41 Ar cross section was measured at average deuteron energies of 3.6 MeV, 5.5 MeV, and 7.0 MeV using an activation method. A 16-MeV deuteron beam produced by Lawrence Berkeley National Laboratory's 88-Inch Cyclotron was degraded to each energy by nickel foils and the front wall of an aluminum gas chamber. The reduced-energy deuterons were used to activate a sample of n a t Ar gas. After each irradiation, the gas chamber's 41 Ar activation was measured with a high-purity germanium detector. The cross sections measured were larger than a previous measurement by ∼ 40%. Highlights: We measured the 41 Ar(d, p) 40 Ar cross section at 3.6, 5.5 and 7.0 MeV using an activation method. Our measured cross section was significantly higher than both a previous measurement and TENDL. Without significant shielding, argon is not recommended as a deuteron beam stopping medium.