Abstract
We present experimental and numerical results on intense-laser-pulse-produced fast electron beams transport through aluminum samples, either solid or compressed and heated by laser-induced planar shock propagation. Thanks to absolute K-alpha yield measurements and its very good agreement with results from numerical simulations, we quantify the collisional and resistive fast electron stopping powers: for electron current densities of approximate to 8 x 10(10) A/cm(2) they reach 1.5 keV/mu m and 0.8 keV/mu m, respectively. For higher current densities up to 10(12) A/cm(2), numerical simulations show resistive and collisional energy losses at comparable levels. Analytical estimations predict the resistive stopping power will be kept on the level of 1 keV/mu m for electron current densities of 10(14) A/cm(2), representative of the full-scale conditions in the fast ignition of inertially confined fusion targets.
| Language | English |
|---|---|
| Article number | 255002 |
| Number of pages | 5 |
| Journal | Physical Review Letters |
| Volume | 109 |
| Issue number | 25 |
| DOIs | |
| Publication status | Published - 18 Dec 2012 |
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Keywords
- stopping-power characterization
- relativistic
- high-current
- electron-beam
- solids
- plasmas
- collisional
- resistive effects
Cite this
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Relativistic high-current electron-beam stopping-power characterization in solids and plasmas : collisional versus resistive effects. / Vauzour, B.; Santos, J. J.; Debayle, A.; Hulin, S.; Schlenvoigt, H. -P.; Vaisseau, X.; Batani, D.; Baton, S. D.; Honrubia, J. J.; Nicolai, Ph.; Beg, F. N.; Benocci, R.; Chawla, S.; Coury, M.; Dorchies, F.; Fourment, C.; d'Humieres, E.; Jarrot, L. C.; McKenna, P.; Rhee, Y. J.; Tikhonchuk, V. T.; Volpe, L.; Yahia, V.
In: Physical Review Letters, Vol. 109, No. 25, 255002, 18.12.2012.Research output: Contribution to journal › Article
TY - JOUR
T1 - Relativistic high-current electron-beam stopping-power characterization in solids and plasmas
T2 - Physical Review Letters
AU - Vauzour, B.
AU - Santos, J. J.
AU - Debayle, A.
AU - Hulin, S.
AU - Schlenvoigt, H. -P.
AU - Vaisseau, X.
AU - Batani, D.
AU - Baton, S. D.
AU - Honrubia, J. J.
AU - Nicolai, Ph.
AU - Beg, F. N.
AU - Benocci, R.
AU - Chawla, S.
AU - Coury, M.
AU - Dorchies, F.
AU - Fourment, C.
AU - d'Humieres, E.
AU - Jarrot, L. C.
AU - McKenna, P.
AU - Rhee, Y. J.
AU - Tikhonchuk, V. T.
AU - Volpe, L.
AU - Yahia, V.
PY - 2012/12/18
Y1 - 2012/12/18
N2 - We present experimental and numerical results on intense-laser-pulse-produced fast electron beams transport through aluminum samples, either solid or compressed and heated by laser-induced planar shock propagation. Thanks to absolute K-alpha yield measurements and its very good agreement with results from numerical simulations, we quantify the collisional and resistive fast electron stopping powers: for electron current densities of approximate to 8 x 10(10) A/cm(2) they reach 1.5 keV/mu m and 0.8 keV/mu m, respectively. For higher current densities up to 10(12) A/cm(2), numerical simulations show resistive and collisional energy losses at comparable levels. Analytical estimations predict the resistive stopping power will be kept on the level of 1 keV/mu m for electron current densities of 10(14) A/cm(2), representative of the full-scale conditions in the fast ignition of inertially confined fusion targets.
AB - We present experimental and numerical results on intense-laser-pulse-produced fast electron beams transport through aluminum samples, either solid or compressed and heated by laser-induced planar shock propagation. Thanks to absolute K-alpha yield measurements and its very good agreement with results from numerical simulations, we quantify the collisional and resistive fast electron stopping powers: for electron current densities of approximate to 8 x 10(10) A/cm(2) they reach 1.5 keV/mu m and 0.8 keV/mu m, respectively. For higher current densities up to 10(12) A/cm(2), numerical simulations show resistive and collisional energy losses at comparable levels. Analytical estimations predict the resistive stopping power will be kept on the level of 1 keV/mu m for electron current densities of 10(14) A/cm(2), representative of the full-scale conditions in the fast ignition of inertially confined fusion targets.
KW - stopping-power characterization
KW - relativistic
KW - high-current
KW - electron-beam
KW - solids
KW - plasmas
KW - collisional
KW - resistive effects
UR - http://www.scopus.com/inward/record.url?scp=84871345189&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.109.255002
DO - 10.1103/PhysRevLett.109.255002
M3 - Article
VL - 109
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 25
M1 - 255002
ER -