Measurements of ion stopping around the Bragg peak in high-energy-density plasmas
Journal Article
·
· Physical Review Letters
- Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States); HEDP DIVISION, MIT PLASMA SCIENCE AND FUSION CENTER
- Univ. of California, Irvine, CA (United States)
- Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
- Univ. of Rochester, Rochester, NY (United States)
For the first time, quantitative measurements of ion stopping at energies about 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 (Te) and electron number density (ne) in the range of 0.5 – 4.0 keV and 3 × 1022 – 3 × 1023 cm-3 have been conducted, respectively. It is experimentally demonstrated that the position and amplitude of the Bragg peak varies strongly with Te with ne. As a result, the importance of including quantum diffraction is also demonstrated in the stopping-power modeling of High-Energy-Density Plasmas.
- Research Organization:
- Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
- Sponsoring Organization:
- USDOE; USDOE National Nuclear Security Administration (NNSA)
- Grant/Contract Number:
- FG03-03SF22691; NA0002726
- OSTI ID:
- 1261629
- Alternate ID(s):
- OSTI ID: 1225547
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 20 Vol. 115; ISSN 0031-9007; ISSN PRLTAO
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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