Table 3 Fractions of excited electrons predicted with our model for the constituents of the coated bilayer systems tested at SACLA.

From: X-ray induced damage of B4C-coated bilayer materials under various irradiation conditions

Layer ith

B4C/Mo: Ri [%]

B4C/SiC: Ri [%]

Rdamage [%]

B 4 C

1.9–2.9

1.9–2.9

3.7–5.6

SiC

0.6–0.9

3.3–4.9

Si

1.8·10−6 − 2.7·10−6

1.4·10−5 − 2.2·10−5

6.7–10.0

 

Dose [eV/atom]

Dose [eV/atom]

Dth [eV/atom]

Mo

0.57

1.2–1.3

  1. The fractions are compared with the corresponding damage threshold values from Table 1. The incoming fluence is 10 μJ/μm2.