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4.02 firmware update released for Nuclear Pioneer MCA

 4.02 firmware update released for Nuclear Pioneer MCA. You can download the hex file from rhelectronics website:

https://rhelectronics.net/store/nuclear-pioneer-mca-multichannel-analyzer-electronic-module-only.html

 

What is new in 4.02:

 

Added boot screen to allow viewing of all saved constants

Added click sound for Geiger-Muller counter in scintillation mode

Improved averaging procedure of Geiger-Muller CPS counter, now it show the correct result faster

Added serial command to make a training data of isotopes for better and faster identification, see updated manual for details

Added serial command to set crystal size, 51x51mm or 25x25mm

Improved doserate energy compensation calculation

Fixed bug of non correctly saved mean CPS to eeprom memory

 

You must to recalibrate LLD, HLD, doserate factors, timestamp and energy scale after making firmware update. For fimrware update instruction please download user manual PDF.

Just few photos

 Nuclear Pioneer MCA with 4.01 firmware. Just few photos with Ra-226 and Cs-137

Firmware update released for Nuclear Pioneer MCA

 

4.01 firmware update released for Nuclear Pioneer MCA. You can download the hex file from rhelectronics website:

https://rhelectronics.net/store/nuclear-pioneer-mca-multichannel-analyzer-electronic-module-only.html

What is new in 4.01:

1. Better and faster Cs-137, Am-241 and Ra-226 RIID detection. Reduced the number of false detection events

2. Added few BLE commands for calibration through smartphone terminal application, see user manual for more details

3. Changed starting position of a channel pointer during energy calibration

4. Minor changes in battery voltage monitoring and initial ADC configuration

You must to recalibrate LLD, HLD, doserate factors, timestamp and energy scale after making firmware update. For fimrware update instruction please download user manual PDF.

Nuclear Pioneer MCA Gamma Spectrometer

 

Assembled unit with enclosure and battery can be ordered from RH Electronics website:

https://rhelectronics.net/store/nuclear-pioneer-mca-multichannel-analyzer-for-gamma-spectrometry.html

The MCA can work as a robust Gamma Spectrometer and as a Scintillation Counter Survey Meter. It has high count rate performance for spectrum mode and for scintillation search mode.

MCA ver.4 specifications:

• ARM Cortex-M4 microprocessor
• 12-bit 4096 channels ADC
• TFT LCD 3.5” 480x320 with adjustable backlight level
• Rotary Encoder for controls
• 600V-1000V adjustable high voltage for photomultiplier probe positive polarity (NaI(Tl) probe is not included)
• 400V high voltage for an internal Geiger Counter
• Include tiny internal Geiger Counter sensor
• Adjustable gain & pulse shape pre-amplifier for an external photomultiplier probe
• Gamma Spectrometer Mode (tested up to 10.000 CPS)
• Scintillation Counter Mode with PMT and GM Sensor
• Easy Channel to Energy calibration with selectable scheme and channels pick
• Real time background subtract mode for gamma spectrometer
• Real time gaussian peak detection
• Linear or Logarithmic spectrum viewer
• Energy compensated dose rate
• 0.30 uSv/h doserate alert and 2-sigma CPS alert in scint.mode
• CPS standard deviation calibration for scint.mode
• Mute / Alert / Clicking in scint.mode
• Spectrum LCD zoom 512-4096 channels
• Micro SD card for data storage, include SD card
• RTC (include installed CR2032 battery for date and time keeping)
• Internal temperature sensor
• Bluetooth BLE module (optional)
• 12Mbit USB port for programming, calibration or data transfer
• Easy firmware update via USB and friendly bootloader
• Power supply: 3.7V LiPo battery, battery current consumption 250mA-350mA, LiPo included
• 3.7V LiPo battery USB charger, software low battery alert
• UPC number: 634154871201
• SKU: RH-MCA-4

DIY Kit USB Gamma Spectrometer Electronic board for MPPC SiPM 60035 Theremino

 

Technical specifications:

• SiPM Bias Voltage 30V with fine Vbr adjustment
• USB Audio ADC for direct compatibility with Theremino, PRA or BecqMoni MCA
• Temperature dependence slope: 19mV/C-25mV/C
• Dimensions: 106x26 mm

Buy the DIY Kit with enclosure on eBay https://www.ebay.com/itm/324405513719 

Buy Electronics board only https://rhelectronics.net/store/mppc-sipm-usb-gamma-spectrometer-driver-board-for-microfc-60035-with-audio-adc.html

Electronic driver board for DIY Gamma Spectrometer based on MPPC Silicon Photomultiplier (SiPM). It made to support Sensl MicroFC 60035 by default, however it electrically compatible with other 30V SiPM with temperature dependence of ~21mV/C

The board sold soldered and tested, without SiPM and without crystal. Recommended for usage with MicroFC 60035 silicon photomultiplier and 8x8x50 CsI(Tl) crystal. The board has space for installing 8x8x50mm detector and the overall PCB size made for Hammond 1593DBK enclosure. 

Electronics intended to wotk in temperature range of 10C-30C, try to install the SiPM detector close as possible to the thermistor sensor on the PCB as shown on the diagram.

Windows OS detects the board as an USB Audio device, that's why you can start to use your favorite freeware MCA without additional audio card or any adapters. Just solder USB cable and open Theremino, PRA or BecqMoni2011 MCA.

Calibration process is simple!

1. Set recording audio level to 99%, set playback audio level to 0% in Windows drivers
2. Set Theremino Audio Gain x1 and 192kHz sampling rate for the USB device
3. Set Theremino Energy Trimmer to the middle
4. Apply Cs-137 and adjust SiPM voltage bias potentiometer to place the 662keV at correct position
5. Check the bias voltage on SiPM cathode is below 31V and re-adjust Energy Trimmer or Bias (if required)

Gamma Spectrum with Theremino MCA and 8x8x50mm CsI(Tl) detector made with the driver:

SiPM MPPC USB Gamma Spectrometers for Theremino / PRA / BecqMoni2011 MCA

https://www.ebay.com/itm/224192491790 

http://www.ebay.com/itm/224175678401

For sell, SiPM detectors with CsI(Tl) crystal. 

Complete USB Gamma Spectrometer with audio interface for amateur freeware Windows MCA software like Theremino or PRA 

Just plug into PC and start using it!

Price depend on crystal size and energy resolution.

• Dimensions: 114x36x20mm
• Crystal CsI(Tl) 8x8x50mm or 6x6x30mm 
• MPPC SiPM MICROFC detector with thermo-compensated power supply
• USB audio interface for Windows
• Detection range: 32keV - 3000keV