Table 1 Summary of initial electron temperature right after the energy deposition, final sample temperature after equilibrium is achieved and the characteristic relaxation time.

From: Measurement of Electron-Ion Relaxation in Warm Dense Copper

Deposited energy density, MJ/kg

Initial electron temperature, (a + b) 10 4  K

Final electron and ion temp, (b) 10 4  K

Characteristic relaxation time, (τ) ps

3.5

1.51 ± 1.0

0.64 ± 0.8

2.8 ± 0.4

5.3

1.98 ± 1.1

1.19 ± 1.0

3.4 ± 0.7

6.5

2.30 ± 1.5

1.30 ± 1.5

3.3 ± 1.0

  1. Each value is determined from the fit of experimental data in the Fig. 2(e) using a causal exponential function (0, t < 0 and a exp(–t/τ) + b) convolved with the detector response.
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