User Guide
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Vertilon Corporation, 66 Tadmuck Road, Westford, MA 01886
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Tel: (978) 692-7070
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Fax: (978) 692-7010
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www.vertilon.com
Product Overview
The SIB064B multianode photomultiplier tube interface board provides the mechanical and electrical connectivity
between Hamamatsu 64 anode MAPMTs and external signal processing electronics such as Vertilon’s PhotoniQ
multichannel data acquisition systems. The PMT is mounted to the bottom side of the SIB064B through 148 socket pins
that connect the device’s 64 anode signals, high voltage input, and last dynode output to the board. The anode signals
are routed to two connectors located on the top of the board that each connect to a specialized high density coaxial cable
assembly. This arrangement allows the SIB064B to be conveniently mounted directly into the user’s optical setup with the
PMT facing outward from the bottom of the board and the sensor interface board (SIB) cables exiting from the top. The
SIB cables carry the 64 anodes from the PMT to the PhotoniQ where the charge from each is separately integrated,
digitized, and sent to a PC for display or further signal processing. The negative high voltage bias to the PMT’s cathode is
supplied directly from the PhotoniQ on a high voltage cable to a dedicated connector on the SIB064B. For applications
utilizing the last dynode output of the PMT, the SIB064B includes a two stage high speed preamplifier whose output is
available on an SMB connector. When specialized timing and triggering are required, this output can be connected to a
separate external discriminator and triggering electronics. Alternatively, for more general purpose applications when the
trigger requirements are not as stringent, one of the two on-board discriminators can be used. A leading edge and zero
slope discriminator — which respectively generate trigger signals based on a threshold and pulse peak — are available to
the user. Several adjustments are included for optimizing preamp gain, discriminator gain, and discriminator energy
thresholds. The full functionality and operation of the SIB064B is conveniently controlled through the PhotoniQ’s graphical
user interface. Intelligent software in the PhotoniQ constantly monitors the status of its SIB connectors to determine the
type of sensor interface board attached to them. Once recognized, a dialog box specific to the recognized SIB is made
available in the GUI through which the user has complete control over its operation.
The various functions on the SIB064B are described in greater detail on the following pages. When necessary, refer to
the functional block diagram shown in Figure 1 below.
Interface board for Hamamatsu 64 Channel MAPMTs
Compatible with H12700, H10966, and H8500 devices
Provides 64 channel interface to data acquisition systems
Separate high voltage input for PMT cathode bias
High speed preamplifier for last dynode output
Leading edge and zero slope discriminators
Adjustable discriminator gain and energy threshold
100% compatible with Vertilon’s PhotoniQ multichannel DAQs
No external power supply required
Simplified control through PhotoniQ graphical user interface
