MCA-Base Ethernet
Single-Channel MCA with Ethernet server

Power-over-Etherne (POE) MCA, with embedded HV, MCA and 150MHz ARM-9 processor.

The MCA-base consists of a an eMorpho multichannel analyser and an integrated high voltage generator and divider to power the photomultiplier (PMT). It plugs directly onto the PMT and can be powered and controlled via an Ethernet connection.

The system includes an ARM-9 processor for Ethernet communication, autonomous data acquisition, and local data analysis.
All code is open-source, giving users full control over the operation of the system. The code can be updated remotely via Internet.

The device is potted and all connectors are sealed against water and moisture intrusion. The Ethernet connectors is an IP67 watertight connector.

• Controlled via Ethernet
• Powered via Ethernet
  or via auxiliary DC-supply
• Use with any scintillator
• Plugs directly onto PMT
• Versions for 10 and 8-dynode PMTs available

• Energy histogram (on board) 4096 x 32
• Time measurement: Real time, life time
• Rate measurement: Histogramming and
  true input pulse rate
• Oscilloscope: 1024-point waveform capture
• List mode: Stores energies and time stamps
• Pulse shape analysis:
  For pile up rejection and particle identification

• Low-power HV unit with high drive strength
• 50 µA PMT DC anode current
• 10 mA PMT anode pulse current

• Total power consumption 1.6W to 2.8W at HV=1000V
• Power supply: Ethernet POE 802.3af
• Altenate power supply: DC 5V to 24V

• 10-bit or 12-bit waveform digitizing ADC;
• 20 MSPS to 80 MSPS
• 500V to 1500V HV, either polarity

• 150 MHz ARM-9 RISC processor
• 8MB SRAM, 4MB Flash
• Operating system: DigiInternational NetOS 7.42
• Open-source Ethernet server code
• Open-source instrument control code

• Sealed construction
• Ethernet connectors is IP67 water tight.

• Open-source application programmer's interface (API)
• Graphics user interface (requires IGOR PRO license)

• ipBase flyer
• PMT pin outs
• Compatible PMT