The time needed to collect all the positive ions in GM counter filled with air at 740 mm Hg is 50 us. The cathode and anode radii are 70 µm and 50 µm, respectively. What is the p=1070 *.operating voltage

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The time needed to collect all the
positive ions in GM counter filled
with air at 740 mm Hg is 50 µs. The
cathode and anode radii are 70 um
and 50 um, respectively. What is the
p=1070 *.operating voltage
Sol/
(6² – a²) p × In
()
t =
secoi
2 x Vµ
b = radius of cathode, cm;
a = radius of anode, cm;
p = gas pressure in counter, mm Hg:
Transcribed Image Text:The time needed to collect all the positive ions in GM counter filled with air at 740 mm Hg is 50 µs. The cathode and anode radii are 70 um and 50 um, respectively. What is the p=1070 *.operating voltage Sol/ (6² – a²) p × In () t = secoi 2 x Vµ b = radius of cathode, cm; a = radius of anode, cm; p = gas pressure in counter, mm Hg:
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