| Autor: |
Zhidkov, A. G., Sasaki, A., Fukumoto, I., Tajima, T., Auguste, T., D’Oliveira, P., Hulin, S., Monot, P., Faenov, A. Ya., Pikuz, T. A., Skobelev, I. Yu. |
| Předmět: |
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| Zdroj: |
Physics of Plasmas; Aug2001, Vol. 8 Issue 8 |
| Abstrakt: |
The energy distribution of hot electrons produced by a very short, intense laser pulse (I=2/4×10[sup 18] W/cm[sup 2], 60 fs, λ=800 nm, obliquely incident p polarized) is investigated theoretically via particle simulation and experimentally via measurements of the electron distribution in the MeV region and the Doppler-shifted emission spectrum of fast ions. This energy distribution is shown to be greatly different from the known two-temperature distribution. The hot electrons with energies near the maximal (∼2 MeV) constitute the distribution with an effective temperature T[sub h] considerably higher than that of lower-energy electrons, which dominate the emission of energetic ions. The temperature scaling with the laser intensity differs from the known T[sub h]∼I[sup 1/2]. © 2001 American Institute of Physics. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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