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Open Gamma Detector

Open Gamma Detector

Open-source hardware for a simple, yet powerful all-in-one scintillation detector and multichannel analyzer (MCA) for gamma spectroscopy and radiation detection. Can be easily modified on the software and hardware side to be integrated into other projects.

Programming can be done via the Arduino IDE and the micro-USB connection; the software is also open source. Instruction on how to do this can be found on GitHub and Hackaday. The software is optimized to work with Gamma MCA out of the box, allowing live-plotting and the recording of spectra via the USB interface.

Makerfabs is authorized to produce the latest version of the Open Gamma Detector by the designer.

Note: SiPM and scintillator are not included in this kit.


  • Compact design: Total size 120 x 50 mm. 70 x 50 mm area for electronics and additional 50 x 50 mm to mount the scintillator.
  • All-in-one detector: No external parts (e.g., sound card) required to record gamma spectra.
  • Easily programmable using the standard Arduino IDE or ready-to-use firmware files.
  • Low-voltage device: No HV needed for a photomultiplier tube.
  • SiPM voltage range from 28 V to 33 V.
  • OLED support out of the box.
  • Low power consumption: ~15 mA @ 5V in standard operation.
  • Adjustable preamp gain for the SiPM pulses (affects energy range & resolution).
  • Customizable energy range with 4096 ADC channels.
  • Default Mode: Capable of at least around 60,000 cps while also measuring energy.
  • Geiger Mode: Capable of at least around 180,000 cps without energy measurement.
  • Additional broken-out power pins and I2C header for displays, etc.
  • Reference:

  • GitHub Repository
  • Hackaday Project
  • Gamma MCA
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    • Views: 3261
    • Product Code: MATTOGD
    • Availability: In Stock
    • $55.00