0,0
0,1
0,2
0,3
0,4
0,5
60
560
1060
1560
2060
2560
energy [keV]
n
u
m
b
e
r
o
f
p
h
o
to
n
s
s
-1
c
m
-2
during the 15 MV beam emission
during the 6 MV beam emission
beam off
0,0
0,1
0,2
60
80
100
174.95
10
197.14
8
anihilation
peak
595.85
9
608.35
867.89
2224.57
11
9
9
1460.86
40
K
nat
19
2
3
4
1
Primus Siemens
-1
-2
i
z
a
to
ó
w
m
s
lc
b
f
o
n
c
energia [MeV]
8
g
+
+ n
197.14 keV (95.9%)
g
T
1/2
< 100ns
T
1/2
-
b
= 26.9s
19
F*
9
19
O
8
18
O (0.2%)
8
19
F
9
73
Ge (7.7%)
32
+ n
g
+
74
Ge
32
9
74
Ge (36%)
32
+ n
n +
74
Ge*
32
595.85 keV
g
~
T
1/2
< 12ps
74
Ge
32
608.35 keV
{
{
10
70
Ge (21%)
32
+ n
g
+
71
Ge
32
174.95 keV
867.89 keV
(stable)
(stable)
T
1/2
+
EC+
b
= 11.43d
71
Ga
31
(stable)
11
1
H (100%)
1
+ n
g
+
2
H
1
2224.57 keV
(stable)