The SIB864 sensor interface board allows for a Ketek PA3325-WB-0808 8 x 8 silicon photomultiplier (SIPM) array to easily interface to a Vertilon PhotoniQ multichannel data acquisition system. The SIPM array is plugged into the bottom side of the printed circuit board where its cathode output signals are routed directly to two sensor interface board (SIB) connectors. The SIB connectors mate to micro-coaxial cable assemblies that connect the 64 device outputs to the PhotoniQ. Bias to SIPM array is provided on a high voltage cable by the PhotoniQ where it can be enabled and configured through the PhotoniQ graphical user interface. A special current-sense tap from the bias interface circuitry is sent to a variable gain preamplifier that outputs the total charge signal measured on all 64 elements in the SIPM array. This signal is fed to a user-programmable leading edge discriminator that generates a trigger signal when an event exceeding a preset energy threshold is detected on any element of the PA3325-WB-0808 device. The trigger output is typically connected to the trigger input on the PhotoniQ data acquisition system where it is used to initiate the collection of the energy signals from the SIPM array connected to the DAQ system’s inputs. SIB864 sensor interface board 特點：
Interface board for Ketek PA3325-WB-0808 8 x 8 element SiPM array
Leading edge discriminator for event trigger and timing
Adjustable gain and threshold for discriminator channel
High voltage interface circuitry to bias the PA3325-WB-0808 device
On board temperature sensor
Compatible with most PhotoniQ models using separately ordered SIB cable
Simplified control through PhotoniQ graphical user interface
SIB864 sensor interface board 
