Comment on "In-depth Plasma-Wave Heating of Dense Plasma Irradiated by Short Laser Pulses" [electronic resource]
Sherlock et al. have reported on the heating of solid density targets by collisional damping of wakefields that are driven by relativistic electron bunches generated in relativistic laser matter interaction. Analyzing collisional particle-in-cell simulations they calculate the fast electron current...
Saved in:
| Online Access: |
Online Access (via OSTI) |
|---|---|
| Corporate Author: | |
| Format: | Government Document Electronic eBook |
| Language: | English |
| Published: |
Washington, D.C. : Oak Ridge, Tenn. :
United States. Department of Energy. ; distributed by the Office of Scientific and Technical Information, U.S. Department of Energy,
2016.
|
| Subjects: |
| Summary: | Sherlock et al. have reported on the heating of solid density targets by collisional damping of wakefields that are driven by relativistic electron bunches generated in relativistic laser matter interaction. Analyzing collisional particle-in-cell simulations they calculate the fast electron current <i>j<sub>f</sub></i> inside the plasma by adding contributions from electrons with energies greater than <i>E</i><sub>cut</sub> = 50 keV; time-integrating the specific resistive energy deposition η <i>j<sup>2</sup><sub>f</sub></i> they arrive at a temperature profile and compare the result to the one 'measured' in their simulation, defined as the energy of particles with E < 30 keV; the discrepancy is due to collisional damping of wake fields (CDW). Here, we disagree with their metric of fast current, which leads to false conclusions about CDW heating being a volumetric, rather than surface effect. |
|---|---|
| Item Description: | Published through SciTech Connect. 04/14/2016. "llnl-jrnl--678702" Physical Review Letters 116 15 ISSN 0031-9007; PRLTAO AM. A. J. Kemp; Y. Sentoku. |
| Physical Description: | Article No. 159501 : digital, PDF file. |