Scanning Electron Microscopy and X-Ray Microanalysis

57 4

. Fig. 4.20 a Mass absorption coefficient for Au
as a function of photon energy. b Mass absorption
coefficient for Au as a function of photon energy
near the Au L-shell critical excitation energies. c
Mass absorption coefficient for Au as a function of
photon energy near the Au M-shell critical excitation
energies

X-ray mass absorption coefficient of gold

a1e+6

1e+5

1e+4

1e+3

Mass absorption coefficient (cm

2 /g)

1e+2

1e+1

0510

X-ray photon energy (keV)

15 20

X-ray mass absorption coefficient of gold

100

X-ray photon energy (keV)

10 11 12 13 14 15

Mass absorption coefficient (cm

2 /g)

b

X-ray mass absorption coefficient of gold

c 10000

1000

1.0 1.5 2.0 2.5

X-ray photon energy (keV)

3.0 3.5 4.0

Mass absorption coefficient (c

m

2 /g)

4.4 · X-Ray Absorption