Measurements of Ion Stopping Around the Bragg Peak in High-Energy-Density Plasmas
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PhysRevLett.115.205001.pdf
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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.
Date Issued
November 2015
Journal
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
Abstract
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.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Plasma Science and Fusion Center
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DOI of Published Version
https://doi.org/10.1103/PhysRevLett.115.205001
