SI9AM-1
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Alpha-Radiation Counter
Main characteristics
|
Stable corona firing voltage |
V |
460 max |
|
Working voltage |
V |
470 |
|
Plateau length |
V |
450 ÷ 520 |
|
Plateau slope |
% / V |
0,2 max |
|
Efficiency to alpha radiation 5.15 MeV |
% |
34 min |
|
Permissible background gamma radiation |
μR / s |
10000 max |
|
Average corona current |
μA |
1 max |
|
Metalized mica window area |
cm2 |
7 - 8 |
|
Interelectrode capacitance |
pF |
1,7 |
| Operating temperature range | °С | -40 ÷ +50 |
|
Life expectancy |
count |
2500 |
|
Weight |
g |
22 |
Overall dimensions
The scheme of connection
|
R |
6-8 МΩ |
|
C1 |
30 – 50 pF |
|
C2 |
8 – 12 pF (circuit capacitance) |
|
PV |
Voltmeter |
|
A |
Amplifier 30mV |
|
BD |
Counter |