Study of (α,p) and (α,n) reactions with a Multi-Sampling Ionization Chamber

Avila, M. L.; Rehm, K. E.; Almaraz-Calderon, S.; Ayangeakaa, A. D.; Dickerson, C.; Hoffman, C. R.; Jiang, C. L.; Kay, B. P.; Lai, J.; Nusair, O.; Pardo, R. C.; Santiago-Gonzalez, D.; Talwar, R.; Ugalde, C.

doi:10.1016/j.nima.2017.03.060

Title: Study of $(α, p)$ and $(α, n)$ reactions with a Multi-Sampling Ionization Chamber

Journal Article · Mon Apr 03 00:00:00 EDT 2017 · Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment

DOI:https://doi.org/10.1016/j.nima.2017.03.060· OSTI ID:1372074

Avila, M. L. ^[1]; Rehm, K. E. ^[1]; Almaraz-Calderon, S. ^[2]; Ayangeakaa, A. D. ^[1]; Dickerson, C. ^[1]; Hoffman, C. R. ^[1]; Jiang, C. L. ^[1]; Kay, B. P. ^[1]; Lai, J. ^[3]; Nusair, O. ^[1]; Pardo, R. C. ^[1]; Santiago-Gonzalez, D. ^[4]; Talwar, R. ^[1]; Ugalde, C. ^[1]

Argonne National Lab. (ANL), Argonne, IL (United States)
Florida State Univ., Tallahassee, FL (United States)
Louisiana State Univ., Baton Rouge, LA (United States)
Argonne National Lab. (ANL), Argonne, IL (United States); Louisiana State Univ., Baton Rouge, LA (United States)

Here, a large number of (α,p) and (α, n) reactions are known to play a fundamental role in nuclear astrophysics. This work presents a novel technique to study these reactions with the active target system MUSIC whose segmented anode allows the investigation of a large energy range of the excitation function with a single beam energy. In order to verify the method, we performed direct measurements of the previously measured reactions ¹⁷O (α, n) ²⁰Ne, ²³Na (α,p) ²⁶Mg, and ²³Na ²⁶Al. These reactions were investigated in inverse kinematics using ⁴He gas in the detector to study the excitation functions in the energy range of about 2–6 MeV in the center of mass. We found good agreement between the cross sections of the ¹⁷O (α, n) ²⁰Ne reaction measured in this work and previous measurements. Furthermore we have successfully performed a simultaneous measurement of the ²³Na (α,p) ²⁶Mg and ²³Na (α, n) ²⁶Al reactions.

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Research Organization:: Argonne National Laboratory (ANL), Argonne, IL (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP)

Grant/Contract Number:: AC02-06CH11357; FG02-96ER40978

OSTI ID:: 1372074

Alternate ID(s):: OSTI ID: 1418376

Journal Information:: Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 859, Issue C; ISSN 0168-9002

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 15 works

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References (18)

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