Gamma Viewer 1.00 - DIY Multi Channel Analyzer for Gamma Spectroscopy

The module is an assembled miniature Multi-Channel Analyzer (MCA) board based on PIC18 microcontroller. It allows you to view and collect gamma spectrum instantly without a computer and safe spectra on a micro SD card. The MCA uses internal 10bit ADC of the microcontroller.

The board has an analog circuit that translates PMT pulses into signal that 10bit ADC can sample in better ways. The spectrum is displayed on a 128x64 LCD and stored on micro SD card for further analyzing with BecqMonitor2011 software.

Technical specifications:

• Application: Amateur Gamma Ray Spectroscopy Project
• ADC: 10bit 1024 channels PIC18
• Energy Range: 10keV - 3000keV
• Linear / Logarithmic Scale Display
• CPS (counts per seconds) Counter for optimal measurement control
• Calibration Engineering Menu
• micro SD card socket
• Power Supply Voltage: 5V-12V DC
• Display: 128x64 LCD 2.8" with Backlight
• Require Input Signal Amplitude: 20mV-3000mV
• Require Input Pulse Duration with exponential fall: 50uS-100uS
• Require Input Pulse Raise time: 2uS-10uS
• Recommended count rate for spectra < 1000 CPS
• Module size: 71mm x 55mm x 20mm
• Shipping Weight: 180gr
• UPC Number: 634154871195
• SKU: RH-M-MCA-18

What is required hardware calibration for the module?

Module require calibration with 2-channels oscilloscope that has bandwidth >20MHz . I suggest the purchase only if you can assess one and can follow instruction. I include printed instruction and video link with the package to set all Test Points.

What is required software calibration for the module?

You can download attached PDF with full description of software settings for 1.03 firmware