Cross Section Measurements of $^{10}$B(p,$\alpha$)$^7$Be
ORAL
Abstract
The $^{10}$B(p,$\alpha$)$^7$Be reaction is a potential temperature diagnostic for laser-driven plasmas. While this technique would be implemented at sub-MeV energies, higher energy resonances may interfere with those that lie within the plasma environment energies. Additionally, there are significant uncertainties and inconsistencies in the reaction cross section data at higher energy. A measurement of $^{10}$B(p,$\alpha$)$^7$Be over a broader range of energies and angles will better determine the resonance interferences and constrain the R-matrix parametrization for the lower energies. This cross section was measured at the University of Notre Dame and at Ohio University with charged particle Si detectors in the energy range E$_{p}$ = 800 - 2000 keV for $^{10}$B(p,$\alpha_{0,1}$)$^7$Be and at multiple angles for complete angular distributions. Data overlap with previous comprehensive lower energy cross section measurements now provides constraints on the interference effects of higher energy resonances. This data better informs the R-matrix analysis of this reaction and helps to confirm the reaction as a potential temperature diagnostic for NIF plasma analysis.
*This work is supported by NSF grant PHY-1713857 and DOE grant PTX-LLNL B613378.
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Presenters
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Bryant Vande Kolk
- Univ of Notre Dame