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Nuclear radiation sensor with GM tube as a detector. Most common solution, easy to make and relatively cheap.

Home Page: http://robertgawron.blogspot.com/2015/02/homemade-geigermuller-counter-part-i.html

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monitor-radioactivity geiger-counter geiger geiger-muller radioactivity radioactivity-level hardware

geigermullercounter's Introduction

GeigerMullerCounter

The Geiger–Müller counter is a relatively simple tool to measure ionizing radiation. When high voltage (typically 380-420V) is applied to the Geiger–Müller tube, the tube doesn't conducts electricity, but it does conducts for a short period, when radiation particle is observed. Those pulses are observed by the detector. The level of ionizing radiation is proportional to the amount of pulses detected in a constant interval of time (typically from 20s to 2,5min).

System architecture

Hardware and Software details

Details are described on my blog. HardwareDataLogger is a simple pulse counter based on NUCLEO-F091RC with additional shield (for real-time data display using LCD).

Hazards

The device uses high voltage and can lead to unpleasant shock, injury or death. Don't touch the PCB or tubes when power is on.

Experiments made with this tool

geigermullercounter's People

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geigermullercounter's Issues

Question

Hi,

sorry to bother you here. I was looking for your contact on your website, but there is none.

Anyway, I found your project very interesting. In fact, I have one SBM-20 Geiger tube (I planned to build my own Geiger counter a few years ago, but never finished it). What is the difference between this and your STS-5 tube?

Also, where did you find metallic holders for lamps? Do you have a figure (picture of a prototype) of the circuit and list of required materials?

And the final question - did you plan to make a digital Geiger counter based on Raspberry Pi?

P. S. My e-mail can be found here: https://keyserver.ubuntu.com/pks/lookup?op=get&search=0xBEA5286DA9CF4A88

Regards,
M.

BOM not updated.

Add 3D printed enclosure.

geiger with stm32

Sorry to bother you, but I want to make a geiger detection suite for the main chip using stm32. Can I get a circuit diagram from you? Thank you

Arduino based geiger counter code

Sorry to bother you but I built the Arduino based geiger counter using a nokia 5110 display but it looks like the software has since been removed from github under this tree

Would you be willing to send me the source code or add it to a repository?

Thank you
James

Projecy: https://robertgawron.blogspot.com/2016/07/using-arduino-to-process-data-from_24.html

Zener diode details

Please provide what zener diode should be used

PC visualization of the results should parse real data.

For tests the dummy data is hard-coded into the script, the data should be read from real results.

On "System architecture" diagram, move HardwareDataLoger out of main module.

It's a separate module, even it's project is a separate git sub-tree.

Fix grammar mistakes found by Code Spell Checker add-on in VSCode.

Update README about changes in firmware

Add info about HardwareDataLogger sub-project.

What should be KiCAD project name of the GM Counter?

From one point it should be named just a Counter (DRY, it's obvious it's GM Counter). From other point, it should have GM prefix when imported to FreeCAD (in https://github.com/RobertGawron/CosmicRayDetector ), to point what Counter it is.

Store data permanently.

Store data on the SD card or in EEPROM, provide way to download the data to the PC.

Use shellcheck to check statically shell scripts

Add Bluetooth support.

Based on HC-05 board.

SD Card support

Lib: http://stm32f4-discovery.com/2014/07/library-21-read-sd-card-fatfs-stm32f4xx-devices/

Add unit tests.

Framework: Check
http://check.sourceforge.net/

Verify transistor type for driving the speaker.

What should be the max power of the transistor?

Create on the LCD a graph of gathered results.

Graph is needed to better visualize results.

Add code documentation (doxygen format)

Add a separate .h file with project specific defines.

File name gm_defines.h

HW filtering capacitor has incorrect package.

Fix according to capacitor type/package used.

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