Petiroc 2A

SiPM read-out for time-of-flight PET

petiroc2a

Petiroc2 is a 32-channel front-end ASIC designed to readout silicon photomultipliers (SiPM) with both polarities for particle time-of-flight measurement applications. Petiroc2 combines a very fast and low-jitter trigger with accurate charge and time measurements. Energy and time are digitized internally with a 10-bit ADC and 40ps-bin TDC.
The concept of the ASIC is to combine two measurement lines that won’t interfere one with each other to measure both first incident photon timing measurement and whole crystal light charge integration.
An adjustment of the SiPM high voltage is possible using a channel-by-channel input DAC. It allows a fine SiPM gain and dark noise adjustment at the system level to correct for the non-uniformity of SiPMs.
The power consumption is 6 mW/channel, excluding buffers used to output the analogue signals. The main application of Petiroc 2 is PET time-of-flight prototyping but it can also be used for any application that requires both accurate time resolution and precise energy measurement.

 


TRL Technology Readiness Level  6 - Application prototype available - learn more
 Available versions
  • Petiroc 2 : discontinued 
  • Petiroc 2A : available
Detector Read-Out  SiPM, SiPM array
Number of Channel 32
Signal Polarity Positive or Negative
Sensitivity Trigger on first photo-electron
Timing Resolution  below 40ps

Packaging & Dimension 

  • TQFP 208 28x28mm
  • TFBGA353 12x12mm
Dynamic Range 3000 photoelectrons (106 SIPM gain), Integral Non Linearity : 1% up to 2500 photoelectrons
Power Consumption

Power supply : 3.3V

192mW Analogue cire (excluding outing buffer), 6mw/ch.

Inputs 32 voltage inputs with DC adjustment for SiPM HV tuning
Outputs
  • Digital output (energy on 10 bits, time on 10 bits - 40ps bin)
  • 32 trigger outputs
  • 1 multiplexed charge output, 1 multiplexed hit register
  • 2 ASIC trigger outputs (Trigger OR on 32 channels, 2 levels)
Internal Programmable Features
  • 32 HV adjustment for SiPM (32X8bits)
  • trigger threshold adjustment (10bits)
  • charge measurement tuning
  • 32 trigger masks
  • internal temperature sensor
  • trigger latch
Evaluation systems
  • Evaluation board : available
  • CAEN system : DT5550A - to be released soon
  • Gammacam : integrated evaluation system - in design

 


petiroc2

Petiroc 2A Measurements

Article Count:
6

There are no articles in this category. If subcategories display on this page, they may contain articles.

Distributed worldwide by

CAEN

Petiroc 2A download

You are not logged in.
Most technical files and detailed product description are accessible only to logged users.

Petiroc 2A - contact

Need advice ?

Contact us

JB cizel identite

Petiroc2 product manager is
Jean-Baptiste Cizel

Login to My Weeroc

You are not logged in to My Weeroc and might not be able to see all information

please login to have full access

Login to My Weeroc

Please login to access to all information, download center and MyWeeroc