Solid State Gamma Radiation Detector
1
12V 1k 10k 10k 1k 1M 5V 100k R 2 10M R 1 10M IC 1A MAX4477 IC 1B MAX4477 C 1 4.7 pF 0.1 F 1000 pF 100 pF 0.1 F 0.1 F 0.1 F 0.01 F PIN DIODE – + – + GAMMA RADIATION 5V IC 2A MAX4477 100 pF 0.1 F 0.01 F – + 5V 2 8 3 6 5 2 1 4 4 1 1 8 3 IC 3 MAX987 0.1 F – + 5V 4 5 2 3 7 1k 10k 150k 10k IC 2B MAX4477 0.01 F 100 pF – + 6 5 7 V OUT TEST POINT 1 Figure 1 When a single gamma photon with sufficient energy strikes the PIN photodiode in this circuit, the output of the com- parator pulses high.
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Transcript of Solid State Gamma Radiation Detector
12V
1k
10k
10k
1k
1M
5V
100k
R210M
R110M
IC1AMAX4477 IC1B
MAX4477
C14.7 pF
0.1 �F1000 pF
100 pF0.1 �F
0.1 �F
0.1 �F
0.01 �F
PINDIODE
–
+–
+
GAMMARADIATION
5V
IC2AMAX4477
100 pF
0.1 �F0.01 �F–
+
5V
28
36
52
1
4
4
1
18
3
IC3MAX987
0.1 �F
–
+
5V
4
5
2
3
7
1k
10k
150k
10k
IC2BMAX4477
0.01 �F
100 pF
–
+
6
57
VOUT
TEST POINT 1
F igure 1
When a single gamma photon with sufficient energy strikes the PIN photodiode in this circuit, the output of the com-parator pulses high.