64 channel oem data acquisition systems (18 pages)
Summary of Contents for Vertilon SIB1064
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User Guide SIB1064 8 x 8 MPPC Sensor Interface Board Hamamatsu S13615-1025N-08 Vertilon Corporation, 66 Tadmuck Road, Westford, MA 01886 Tel: (978) 692-7070 Fax: (978) 692-7010 www.vertilon.com...
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Vertilon reserves the right to change this product without prior notice. No responsibility is assumed by Vertilon for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under the patent and proprietary information rights of Vertilon Corporation.
A separate -100V power source from the PhotoniQ is used to generate the high voltage bias signal to the S13615 MPPC array. Use with any other power sources may result in damage to the SIB1064 or the MPPC array.
PhotoniQ graphical user interface. A special current-sense output from the bias interface circuitry is routed to the input of a variable gain preamplifier on the SIB1064 indicating the total AC current signal to all 64 MPPC channels. This signal, which is available to the user on an SMB jack, is fed into a leading edge discriminator with a user- programmable threshold.
SIB1064 which is positioned in an optical assembly to detect incoming radiation. The 64 outputs from the MPPC array are routed on the SIB1064 to the SIB connectors that connect to a PhotoniQ IQSP482 or IQSP582 multichannel data acquisition system.
Data Configuration menu in the PhotoniQ GUI should be set to positive. See the PhotoniQ user’s manual for more details. The figure below shows a typical SIB1064 display of random particle signals on the 8 x 8 MPPC array.
High Voltage Interface The SIB1064 employs the interface circuit shown below between the high voltage input connector, J3, and the common anodes of the S13615 device. The monitor output (HVMON) allows the high voltage anode bias to the MPPCs to be indirectly monitored at a reduced voltage level.
64 MPPCs in the array. This voltage signal is available on an SMB output connector on the SIB1064 and is also fed to the input of the discriminator. There are three settings for the preamplifier gain — low, medium, and high —...
Figure 7 shows the operation of the leading edge discriminator. A positive-going current pulse into the preamplifier results in a negative-going pulse on its output. This pulse is compared to a threshold that is adjusted using the SIB1064 configuration dialog box in the PhotoniQ GUI. A logic high (for positive polarity control) is generated after a small delay ) from when the pulse first crosses the threshold, V .
An additional feature of the discriminator is a status LED that can be selectively enabled and disabled in the SIB1064 GUI dialog box. Under normal triggering conditions, this LED blinks green when an event is detected, and is off when no event is detected.
Test input (for factory use only) Table 3: Connectors Name Function Description STATUS Green LED indicator for SIB1064 trigger status. SW1: 1-2 DEV ADDR 1:0 Sets the device address for control by the PhotoniQ. Set both switches to “ON”. SW1: 3-4 DEV TYPE 1:0 Sets the device type for control by the PhotoniQ.
SIB Connector Pinout The SIB1064 connectors and cables are fully compatible with all Vertilon PhotoniQ systems. For applications utilizing data acquisition systems other than Vertilon’s PhotoniQ series, the pinouts for connectors J1 and J2 are provided in Table 6 as a reference.
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Vertilon reserves the right to change this product without prior notice. No responsibility is assumed by Vertilon for any infringements of patents or other rights of third parties which may result from its use.
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