PENELOPE 2003 - OECD Nuclear Energy Agency

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6.3. Selecting the simulation parameters 203
2 Ε− 5
mixed (C 1
=C 2
=0.15)
det a il ed (C 1
=C 2
=0)
1 Ε− 5
p ( E t
) (1/eV)
8 Ε− 6
Al
➤ ➤
➤
E t
4 Ε− 6
0Ε+0
2E+5 3 E+5 4 E+5
E t
(eV)
4 Ε− 7
p ( E b
) (1/eV)
3 Ε− 7
2 Ε− 7
Al
E b
mixed (C 1
=C 2
=0.15)
➤ ➤
1 Ε− 7
det a il ed (C 1
=C 2
=0)
0Ε+0
0E+0 1 E+5 2 E+5 3 E+5 4 E+5 5 E+5
E b
(eV)
Figure 6.6: Results from PENSLAB for a 500 keV electron beam impinging normally on the
surface of a 200-µm-thick aluminium slab (further details are given in the text). Top: energy
distribution of transmitted electrons. Bottom: energy distribution of backscattered electrons.
Secondary electrons are included in both cases.