Digital Multi Channel Analyzer HEXAGON


Hexagon is a compact, stand-alone dual digital 32k MCA, available in desktop form factor. It is designed for high energy resolution semiconductor detectors, like HPGe and SDD.

Thanks to the two input simultaneous acquisition, the module is able to manage coincidence and anti-coincidence logic between detectors, allowing the user, for example, to easily take advantage of background rejection or anti-Compton techniques.
The module has been designed to operate as a scalable multi-input, multi-board acquisition system, offering synchronization capabilities.

The Hexagon houses USB 2.0 and Ethernet interfaces. USB 2.0 allows data transfers up to 30 MB/s.



  • Dual 32k Digital MCA & Pulse Processor
  • ADC 16 bit, 100 MS/s
  • Provides pulse height analysis (PHA), time-stamped list mode and multichannel scaler (MCS coming soon)
  • Suited for high resolution spectrocscopy with HPGe, Silicon detectors and scintillation detectors as Nal and LaBr3
  • Designed to operate with Resistive Feedback and Transistor Reset preamplifier
  • Ethernet and USB readout interfaces
  • Easy synchronization for Multi-Board systems
  • 24 Programmable Digital I/O
  • Signal Inspector by both BNC Analog Output and Software visualization


  • Two Analog Inputs
  • ADC
  • Digital Signal Processing
  • Preamplifier Power Supply (two)
  • High Voltage Power Supply (two)


Parameter Value
Operating Modes
Pulse Height Analysis (PHA)
List mode (pulse height and time stamp for each event)
Oscilloscope mode
OMCS (Multichannel Scaling) mode
Digital Signal Processing
Trapezoidal filter (rise time 0 – 20µs and flat top 0 – 10µs)
Manual trigger threshold adjustment
Manual AC coupled input signal pole/zero adjustment
Baseline restorer
Fast Discriminator
Manual fast discriminator threshold adjustment
Pile up rejection and Live Time correction
Resolution:16 bits
Sampling rate: 100 MS/s
Analog Input
BNC connector
DC and ADC coupled
Positive and negative signals accepted
Programmable coarse gain (x1, x2, x4, x8, x16, x32, x64, x128, x256, x496)
Programmable fine gain (range 0.8 – 2.2 with steps of 0.001)
Gain attenuator (x4)
Programmable DC offset adjustment in the full scale range
High Voltage Power Supply
SHV connector
V set/I set: ±5 kV/300 µA
HV polarity adjustable
Voltage ripple: 3 mmVpp (Min.), 5 mVpp (Max.)
User configurable Ramp-Up/Ramp-Down rates independently for each channel: 1÷ 500 V/s range in steps of 1 V/s
User configurable HV parameters independently for each channel
OverVoltage/UnderVoltage alarms
OverCurrent/OverTemperature alarms
Channel Inhibit on DB9 and dedicated BNC connectors
Voltage limit, Vmax, software selectable
Coincidence Modes
Single channel mode (uncorrelated)
Board coincidence (channel 0 con channel 1)
Board anti-coincidence (channel 0 con channel 1)
External Coincidence (GATE)
External anti-coincidence (INH)
237 W x 51 H x 195 L mm3