Questions tagged [geiger-muller-tube]
The geiger-muller-tube tag has no usage guidance.
12
questions
0
votes
1answer
34 views
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?...
0
votes
1answer
42 views
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'...
0
votes
0answers
60 views
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 ...
1
vote
0answers
28 views
Purpose of LLD on GM ratemeter
I'm confused as to the purpose of the LLD (lower level discriminator) setting on a ratemeter GM tube. The LLD establish a threshold hold for the voltage signal from the detector to define an pulse. ...
3
votes
1answer
216 views
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 ...
0
votes
3answers
287 views
Arduino Geiger Counter
I have found somewhere the following scheme for an arduino based geiger counter. (The arduino main purpose is to count the pulses from the tube) As far as I can understand it, the transistor would ...
0
votes
1answer
682 views
geiger tube dc power supply
I have one of these HV dc converters and I was wondering if I can use it to supply a small Russian SMB21 Geiger muller tube. What other parts would I need to add not to fry the GM tube? Keep in mind I ...
3
votes
5answers
1k views
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 ...
2
votes
1answer
715 views
9V to 400V DC-DC Converter
I need to build a Geiger counter power supply circuit that will provide a 400V DC output out of one of those 6LR61 9V batteries. I thought about using a 555 timer to produce a square wave, feed it ...
1
vote
3answers
157 views
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'...
7
votes
2answers
804 views
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 ...
5
votes
1answer
2k views
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 (...
