This contains all the functionality to do gamma spectroscopy and nothing more

I'm planning on producing something that looks more similar to other gamma detectors, like the excellent products that are already out there: the Radiacode, the Kromek Sigma25, or the CapeScint CsI-MacroPixel-MCA. To shift towards that I merged the digital and analog electronics into a single PCB, removing the battery and charging circuit, as these are not core to the functionality of the detector. The detector now consists of two parts:

Pomelo Physics:

• CsI(Tl) scintillator, 3cm^3
• Silicon photomultiplier
• 3D printed dark box to house scintillator and keep stray light away from SiPM
• Temperature sensor

Pomelo Core:

• Digitally controlled SiPM bias supply ~32V - ~48V
• Low power analog front-end
• Microchip SAML21 (ARM Cortex-M0+) microcontroller
• USB connectivity
• UART connectivity with integrated level shifter

Pomelo Physics. Scintillator and SiPM detachable module

Back of Pomelo Core PCB