MuSIC@Indiana: an effective tool for accurate measurement of fusion with low-intensity radioactive beams

Autor: Johnstone, J. E., Kumar, Rohit, Hudan, S., Singh, Varinderjit, deSouza, R. T., Allen, J., Bardayan, D. W., Blankstein, D., Boomershine, C., Carmichael, S., Clark, A. M., Coil, S., Henderson, S. L., O'Malley, P. D.
Rok vydání: 2021
Předmět:
Druh dokumentu: Working Paper
DOI: 10.1016/j.nima.2021.165697
Popis: The design, construction, and characterization of the Multi-Sampling Ionization Chamber, MuSIC@Indiana, are described. This detector provides efficient and accurate measurement of the fusion cross-section at near-barrier energies. The response of the detector to low-intensity beams of $^{17,18}$O, $^{19}$F, $^{23}$Na, $^{24,26}$Mg, $^{27}$Al, and $^{28}$Si at E$_{lab}$ = 50-60 MeV was examined. MuSIC@Indiana was commissioned by measuring the $^{18}$O+$^{12}$C fusion excitation function for 11 $<$ E$_{cm}$ $<$ 20 MeV using CH$_{4}$ gas. A simple, effective analysis cleanly distinguishes proton capture and two-body scattering events from fusion on carbon. With MuSIC@Indiana, measurement of 15 points on the excitation function for a single incident beam energy is achieved. The resulting excitation function is shown to be in good agreement with literature data
Comment: 8 pages, 9 figures
Databáze: arXiv