Electrical Engineering Stack Exchange
Electrical Engineering Stack Exchange

Questions tagged [geiger-muller-tube]

17 questions
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Testing an old Geiger tube?

I have an old Soviet personal radiation dosimeter that I broke as a kid by dropping it into water. I opened it up a while ago and the electronics in there were quite simple - mainly a ~10cm Geiger tube and what looked like Soviet variants of…
avramov
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Can leaving a Geiger–Müller tube energized continuously cause it to wear out?

I recently acquired a Geiger counter to feed my raging paranoia curiosity. However, I am wondering if it could harm the Geiger–Müller tube to leave it energized continuously? I know a couple places (spark fun, for one) Have continuously operating…
Connor Wolf
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5V to 400V boost converter problem

I am trying to make a boost converter that step up 5V to 400V. I am doing it for a geiger counter. I know that it's complicated, but it should be possible. Anyway, here is my schematic: My problem is that I can't get the assumed output voltage. I…
Steporkak
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1 answer

Simple, compact 9V DC to 400V DC step up

I'm attempting to create my own Geiger-Muller counter based on an old, soviet STS-5 tube. I want it to be as compact as possible. I don't want to use ready-made modules, like this one, instead I want to put everything on one PCB. My only struggle…
sp9dev
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4 answers

My Geiger counter exploded and I don't know why

For some background, for the past few months I have been trying to collect all the elements on the periodic table. I bought a Geiger counter for the more radioactive elements (specifically the GQ GMC-600 Plus if that helps.) Anyway, I have been…
FaffyWaffles
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How to get signal out of Geiger-Muller tube?

I am building a nuclear random number generator using an LND-712 Geiger-Muller tube (GMT). I have built a HV power supply circuit that converts the 3.3V output of my Adafruit Feather RP2040 micro-controller to the 500V needed by my GMT, you can see…
CGUEST
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What is the point of Geiger counter calibration?

I understand that the three ways Geiger counters can be calibrated are electronic calibration and energy calibration, which both use a pulse generator, and radiological calibration which uses a check source. Electronic calibration simply involves…
EmmaV
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9 V to 400 V DC-DC converter

I need to build a Geiger counter power supply circuit that will provide a 400 V DC output out of one of those 6LR61 9 V batteries. I thought about using a 555 timer to produce a square wave, feed it into a 1:45 transformer and then filter out the…
That guy
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DC boost supply no-load voltage

I am working on a Geiger counter circuit which utilizes a boost supply similar to the one shown below to polarize the Geiger tube. The tube datasheet specifies a maximum voltage of 475 V. However, I'm not really sure how to interpret this in the…
Qubit1028
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Protecting other circuits from Geiger power supply

I'm designing a Geiger counter power supply that boosts 3.3 V to 500 V. The circuit is a basic voltage booster. 3.3 V power line is directly connected to inductor where high voltage is generated. How can i protect the 3.3 V line = other devices…
zerobeat
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How do I make this circuit work without using mosfets?

I've come across circuits that utilize MOSFETs to drive a center-tapped transformer, but unfortunately, I don't have any MOSFETs on hand. Since I'm working on a circuit for a Geiger-Muller tube, I don't require a high-power setup. I've considered…
Doobalo
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SBM-20 Geiger-Muller tube constantly on

I have recently purchased an SBM-20 Soviet Geiger-Muller Tube, which I want to use in a Geiger Counter circuit. I powered it with a 12V to 400V DC-DC power supply, connected in series with a 5.6 megaohm anode resistor. However, when I connected the…
leo
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Connecting Geiger Counters in Coincidence

So for this Geiger Counter kit from mightohm (https://mightyohm.com/blog/products/geiger-counter/), does any one have any suggestions for what circuits to build to connect two detectors in coincidence? I had contacted the maker, and he had not done…
books123
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How does this specific boost converter work?

So I found this Geiger counter at https://mightyohm.com/blog/products/geiger-counter/. You can also find the detailed electronic schematics there. I tried to figure out how this apparatus works, but I'm stuck with the boost converter and the timer…
tscherenkov
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What happens in a Geiger-Müller tube when there is no voltage?

What happens in a Geiger-Müller tube when it is not connected to a circuit? Ionizing radiation must still be creating ions inside it, but they cannot move to the anode because there is no potential difference. What happens to them?
EmmaV
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