22. Work Function of Various Metals
Metal
A, eV
Metal
A, eV
Metal
A, eV
Aluminium
3.74
Gold
4.58
Potassium
2.15
Barium
2.29
Iron
4.36
Silver
4.28
Bismuth
4.62
Lithium
2.39
Sodium
2.27
Cesium
1.89
Molybdenum
4.27
Titanium
3.92
Cobalt
4.25
Nickel
4.84
Tungsten
4.50
Copper
4.47
Platinum
5.29
Zinc
3.74
23. H Band Absorption Edge
Z
Element
% IC' pm
Z
Element
%K, pm
23
V
226.8
47
Ag
48.60
26
Fe
174.1
50
Sn
42.39
27
Co
160.4
74
W
17.85
28
Ni
148.6
78
Pt
15.85
29
Cu
138.0
79
Au
15.35
30
Zn
128.4
82
Pb
14.05
42
Mo
61.9
92
U
10.75
24. Mass Absorption Coefficients
(X-ray radiation, narrow beam)
X, Pm
Mass absorption coefficient g/p, cm2/g
Air
Water
Aluminium
Copper
Lead
10
0.16
0.16
0.36
3.8
20
0.18
0.28
1.5
4.9
30
0.29
0.47
4.3
14
40
0.44
1.1
9.8
31
50
0.48
0.66
2.0
19
54
60
0.75
1.0
3.4
32
90
70
1.3
1.5
5.1
48
139
80
1.6
2.1
7.4
70
90
2.1
2.8
11
98
100
2.6
3.8
15
131
150
8.7
12
46
49
200
21
28
102
108
250
39
51
194
198
25*
379
Metal
A, eV
Metal
A, eV
Metal
A, eV
Aluminium
3.74
Gold
4.58
Potassium
2.15
Barium
2.29
Iron
4.36
Silver
4.28
Bismuth
4.62
Lithium
2.39
Sodium
2.27
Cesium
1.89
Molybdenum
4.27
Titanium
3.92
Cobalt
4.25
Nickel
4.84
Tungsten
4.50
Copper
4.47
Platinum
5.29
Zinc
3.74
23. H Band Absorption Edge
Z
Element
% IC' pm
Z
Element
%K, pm
23
V
226.8
47
Ag
48.60
26
Fe
174.1
50
Sn
42.39
27
Co
160.4
74
W
17.85
28
Ni
148.6
78
Pt
15.85
29
Cu
138.0
79
Au
15.35
30
Zn
128.4
82
Pb
14.05
42
Mo
61.9
92
U
10.75
24. Mass Absorption Coefficients
(X-ray radiation, narrow beam)
X, Pm
Mass absorption coefficient g/p, cm2/g
Air
Water
Aluminium
Copper
Lead
10
0.16
0.16
0.36
3.8
20
0.18
0.28
1.5
4.9
30
0.29
0.47
4.3
14
40
0.44
1.1
9.8
31
50
0.48
0.66
2.0
19
54
60
0.75
1.0
3.4
32
90
70
1.3
1.5
5.1
48
139
80
1.6
2.1
7.4
70
90
2.1
2.8
11
98
100
2.6
3.8
15
131
150
8.7
12
46
49
200
21
28
102
108
250
39
51
194
198
25*
379