Here are some of the most important key facts:
- Compact design: Total size 120 x 50 mm. Approx. 70 x 50 mm area for electronics and additional 50 x 50 mm to mount a scintillator.
- All-in-one: No external parts (e.g. sound card) required to record gamma spectra.
- Easily programmable using drag-and-drop firmware files or the standard Arduino IDE.
- Low-voltage device: No HV needed like with photomultiplier tubes.
- Can use SiPMs in the voltage range of 27.5 V to 33.8 V.
- 4096 ADC channels with built-in 3 V voltage reference.
- Energy resolution of ~8% @ 662 keV possible; highly dependent on your SiPM/scintillator assembly.
- Default (Energy) Mode: About 15 µs total dead time while measuring energy.
- Geiger Mode: About 5 µs total dead time without energy measurements.
- Low power consumption: ~25 mA @ 5 V with default firmware.
- Additional broken-out power pins and I2C, SPI and UART headers for custom parts (e.g. display, µSD card, etc.).
- Built-in True Random Number Generator.
- Simple OLED support out of the box (SSD1306 and SH110x).
- Built-in customizable ticker support.
More information can also be found in the GitHub repository...
Ok nice, but how do I get it?
- DIY version: Download BOM and Gerber files or use Kitspace.
- Buy a complete board: Head over to Tindie.
The principle of operation for the detector looks like this:
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Hi, this is very interesting. I would like to understand your thinking in the preamp design and why a transimpediance preamp design wasn't used.