Open radio-TLC scanner for radiopharmaceutical quality control. Detection based on the Mini-SiD and MicroFC-SiPM-Carrier-Board repositories by NuclearPhoenixx (https://github.com/OpenGammaProject)
Hardware
Detector assembly: NaI(Tl) crystal, MICROFC-60035-SMT-TR SiPM, Mini-SiD and MicroFC-SiPM-Carrier-Board (follow instructions @ https://github.com/OpenGammaProject) Raspberry Pi Pico microcontroller Linear actuator with 4-wire NEMA 17 stepper motor and TB6600 driver Limit switches ×2 Power supply 12v, 2A USB cable Male-to-female Dupont jumper wires Collimator suitable for the application Case Zip ties and mounts
RPi pico GPIO Connections
13-ENA (TB6600) 14-PUL(TB6600) 15-DIR (TB6600) 16-INT (Mini-SiD) 17-Start limit switch 18-End limit switch 36-Vcc (Mini-SiD) 39-5V (ENA, PUL, DIR TB6600) GND pins to Mini-SID and limit switches
TB6600
Set the pins to 1/2 microstep, and the current pins as needed depending on the motor and power supply Connect the power supply cables to VCC and GND Connect the motor cables
Software
Install MicroPython on the Raspberry Pi Pico using Thonny IDE or any other suitable tool. Load microcontroller.py, set it to run at boot (main.py) Unplug and reconnect the USB Download and run RTLCcontrol.exe Download RTLC.xls for processing chromatograms