Measurements of Ion Stopping Around the Bragg Peak in High-Energy-Density Plasmas
Author(s)
Grabowski, P. E.; Glebov, V. Yu; Sangster, T. C.; Frenje, Johan A.; Li, Chikang; Seguin, Fredrick Hampton; Zylstra, Alex Bennett; Gatu Johnson, Maria; Petrasso, Richard D.; ... Show more Show less
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For the first time, quantitative measurements of ion stopping at energies around the Bragg peak (or peak ion stopping, which occurs at an ion velocity comparable to the average thermal electron velocity), and its dependence on electron temperature (T[subcontract e]) and electron number density (n[subcontract e]) in the range of 0.5–4.0 keV and 3 × 10[superscript 22] to 3 × 10[superscript 23] cm[superscript −3] have been conducted, respectively. It is experimentally demonstrated that the position and amplitude of the Bragg peak varies strongly with T[subscript e] with n[subscript e]. The importance of including quantum diffraction is also demonstrated in the stopping-power modeling of high-energy-density plasmas.
Date issued
2015-11Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Plasma Science and Fusion CenterJournal
Physical Review Letters
Publisher
American Physical Society
Citation
Frenje, J. A., P. E. Grabowski, C. K. Li, F. H. Seguin, A. B. Zylstra, M. Gatu Johnson, R. D. Petrasso, V. Yu Glebov, and T. C. Sangster. “Measurements of Ion Stopping Around the Bragg Peak in High-Energy-Density Plasmas.” Physical Review Letters 115, no. 20 (November 2015). © 2015 American Physical Society
Version: Final published version
ISSN
0031-9007
1079-7114