sib108 eight channel sensor interface board › pdf › ug2858.pdfsib108 eight channel sensor...

User Guide

Vertilon Corporation, 66 Tadmuck Road, Westford, MA 01886 / Tel: (978) 692-7070 / Fax: (978) 692-7010 / www.vertilon.com

SIB108

Eight Channel MPPC Sensor Interface Board Hamamatsu S10362-33-50C

User Guide

Vertilon Corporation, 66 Tadmuck Road, Westford, MA 01886 / Tel: (978) 692-7070 / Fax: (978) 692-7010 / www.vertilon.com

Disclaimer Vertilon Corporation has made every attempt to ensure that the information in this document is accurate and complete. Vertilon assumes no liability for errors or for any incidental, consequential, indirect, or special damages including, without limitation, loss of use, loss or alteration of data, delays, lost profits or savings, arising from the use of this document or the product which it accompanies.

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.

Copyright Information © 2012 Vertilon Corporation

ALL RIGHTS RESERVED

SIB108 Eight Channel Sensor Interface Board

- 4 - Vertilon Corporation, 66 Tadmuck Road, Westford, MA 01886 / Tel: (978) 692-7070 / Fax: (978) 692-7010 / www.vertilon.com

User Guide


Table of Contents General Safety Precautions .....................................................................................................................7 Product Overview .....................................................................................................................................8 Specifications .........................................................................................................................................10 Typical Setup ..........................................................................................................................................11 Hamamatsu S10362 MPPC Mounting Board ........................................................................................12 Detector Signal Chain ............................................................................................................................12 High Voltage Bias Supplies ...................................................................................................................13 Discriminator...........................................................................................................................................14 Trigger Logic Function...........................................................................................................................15 Trigger Status LEDs ...............................................................................................................................15 Circuit Board Views................................................................................................................................16 Component Locations and Functions...................................................................................................17 SIB Connector Pinout.............................................................................................................................18 Mechanical Information..........................................................................................................................19



List of Figures Figure 1: Functional Block Diagram...........................................................................................................9

Figure 2: Typical Setup............................................................................................................................11

Figure 3: S10362 Signal Chain................................................................................................................12

Figure 4: SIB108 Dialog Box ...................................................................................................................13

Figure 5: Leading Edge Discriminator Timing..........................................................................................14

Figure 6: SIB108 Top View......................................................................................................................16

Figure 7: MPPC Mounting Board.............................................................................................................16

Figure 8: Component Locations and Functions .......................................................................................17

Figure 9: SIB108 Printed Circuit Board Dimensions ................................................................................19

Figure 10: MPPC Mounting Board Dimensions .......................................................................................19

List of Tables Table 1: Specifications.............................................................................................................................10

Table 2: Connectors, LEDS, and Switches..............................................................................................17

Table 3: Sensor Interface Board (SIB) Connectors..................................................................................18

User Guide


General Safety Precautions

Use Proper Power Source The SIB108 is powered from a separate +5V power source included with the product. A negative 100V power source that is used to generate the high voltage bias to the detectors is supplied directly from Vertilon’s PhotoniQ multi-channel data acquisition system. Use with any other power sources may result in damage to the product.

Operate Inputs within Specified Range To avoid electric shock, fire hazard, or damage to the product, do not apply a voltage to any input outside of its specified range.

Electrostatic Discharge Sensitive Electrostatic discharges may result in damage to the SIB108. For this reason, the SIB108 board is intended to be operated in a user’s conductive instrument enclosure.

Do Not Operate in Wet or Damp Conditions To avoid electric shock or damage to the product, do not operate in wet or damp conditions.

Do Not Operate in Explosive Atmosphere To avoid injury or fire hazard, do not operate in an explosive atmosphere.



Product Overview

The SIB108 sensor interface board allows up to eight Hamamatsu S10362-33-50C multi-pixel photon counters (MPPCs) to easily interface to a Vertilon PhotoniQ multichannel data acquisition system (DAQ). The MPPC devices are inserted into remote mounting boards where their anode and cathode signals are carried on a special purpose cable assembly to the SIB108. Each MPPC is biased through its anode connection by one of the eight on-board adjustable high voltage bias supplies. These supplies are conveniently enabled and configured through the PhotoniQ graphical user interface. Gain matching between the arrays is done by trimming each device’s bias voltage in the GUI. The MPPC devices’ cathode signals are split into two paths on the SIB108 — the charge signal path and the discriminator path. The charge signal path is routed to a sensor interface board (SIB) connector that conforms to Vertilon’s standard, low-noise, multi-channel, cable interconnection system. The SIB connector mates to a micro-coaxial cable assembly that connects the eight device outputs to the PhotoniQ which is used to integrate the charge (energy) signal from each MPPC. The discriminator path includes a variable gain pre-amplifier and an adjustable threshold leading edge discriminator. Full control over the discriminator gain and threshold is performed through the PhotoniQ GUI which also allows the user to enter a logic function that generates a trigger signal based on some combination of the eight discriminator outputs. This trigger signal is available as an output from the SIB108 and 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 MPPCs connected to the DAQ system’s inputs. The full functionality and operation of the SIB108 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 SIB108 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 S10362-33-50C MPPCs

• Supports up to eight remotely located multi-pixel photon counters

• Leading edge discriminator on each channel for event trigger & timing

• Adjustable gain and threshold for discriminator channels

• Programmable logic function for trigger generation

• Independently adjustable high voltage bias supplies for each MPPC

• 100% compatible with Vertilon’s PhotoniQ multichannel DAQs

• Simplified control through PhotoniQ graphical user interface

User Guide


Figure 1: Functional Block Diagram

VERTILON SIB108EIGHT CHANNEL SENSOR INTERFACE BOARD

SENSOR INTERFACE BOARD CONNECTOR

TRIGOUT

TRIM1 - 8HV1 – HV8

HIGH VOLTAGEBIAS SUPPLIES

HV1

HV2

HV3

HV4

AMP

K1

K2

K3

K4

DSCR

GAIN1

AMP DSCR

GAIN2

AMP DSCR

GAIN3

AMP DSCR

GAIN4

ADJUSTABLETHRESHOLDGENERATOR

Vth1 / Vth2

HV6

HV5

HV7

HV8

AMP

K5

K6

K7

K8

DSCR

GAIN5

AMP DSCR

GAIN6

AMP DSCR

GAIN7

AMP DSCR

GAIN8

Vth1 / Vth2

HamamatsuS10362-33-50CMounting Board




Cha

nnel

1C

hann

el 2

Cha

nnel

3C

hann

el 4

Cha

nnel

1 -

4





Cha

nnel

5C

hann

el 6

Cha

nnel

7C

hann

el 8

Cha

nnel

5 -

8

ENB1 - 8

-HVINPUT

+5VINPUT

SYSTEMCONTROL TRIGGER

LOGIC

LEDA

LEDB

LEDC

LEDD



Specifications (TA = +25C, unless otherwise noted)

Description Sym Min Typ Max Units Notes

INPUT CHANNELS Quantity 8 Eight direct coupled channels to PhotoniQ channels 1 to 8. Anode Bias Voltage VB +0.250 V Detector anode voltage supplied from PhotoniQ data acquisition system

HIGH VOLTAGE BIAS SUPPLIES Quantity HV1 – HV8 8 One for each Hamamatsu S10362-33-50C MPPC

Nominal Voltage Range -79.5 -59.4 V The actual voltage applied to the MPPC is +0.250V greater because of the +0.250V anode bias when a PhotoniQ is connected to the SIB108.

Resolution 100 mV

PREAMPLIFIER Low Gain A 20 dB

High Gain A 26 dB Gain selected through GUI interface.

LEADING EDGE DISCRIMINATOR Threshold 1 Adjustment Range Vth1 0 2.5 V Referenced to baseline level at discriminator input. Threshold (0 to 100%) controlled through GUI interface. Threshold 2 Adjustment Range Vth2 0 2.5 V Referenced to baseline level at discriminator input. Threshold (0 to 100%) controlled through GUI interface. Threshold to Output Delay td 7 nsec

TRIGGER OUTPUT Output Impedance 50 Ω Logic High Output Level VOH +4.3 +4.8 V (IOH = -32mA) Logic Low Output Level VOL +0.2 +0.6 V (IOL = 32mA)

DIMENSIONS Width W 102 mm Length L 102 mm (not including connectors which extend past PCB edge) Thickness T 1.57 mm (printed circuit board only)

Table 1: Specifications

User Guide


Typical Setup A typical eight channel setup using Hamamatsu S10362-33-50C multi-pixel photon counters and a SIB108 is shown below. Each device is inserted in the MPPC mounting board which in turn is connected to the SIB108 through a specialized cable assembly. Two cable assemblies are required — one for channels 1 through 4 and the other for channels 5 through 8. The eight outputs from the MPPC devices are routed on the SIB108 to the SIB connector that connects to a Vertilon PhotoniQ multichannel data acquisition system. The figure shows a 64 channel system like the IQSP482 or IQSP582 although a 32 channel system could also be used. The discriminator logic produces a trigger to the PhotoniQ whenever an event detected by the eight MPPCs meets the trigger function criteria. The energy level threshold for the event is set by the user through the PhotoniQ graphical user interface. Charge signals from the eight devices are acquired by the PhotoniQ for each trigger produced by the SIB108. Digitized output data from the PhotoniQ is sent through a USB 2.0 connection to a PC for display, logging, or real time processing.

Figure 2: Typical Setup



Hamamatsu S10362 MPPC Mounting Board The SIB108 supports up to eight Hamamatsu S10362-50-33C multi-pixel photon counter devices — each mounted on an MPPC mounting board. To attach the device, the MPPC is inserted into the two socket pins on the mounting board. Care should be taken to avoid bending the device pins when inserting the MPPC into the socket pins. Because the socket pins extend above the board, a small plastic spacer should be used between the MPPC and the surface of the PCB.

Detector Signal Chain The eight cathode signals from the individual Hamamatsu S10362 MPPCs are routed directly on the SIB108 to the SIB connector. These signals map to channels 1 through 8 of a Vertilon PhotoniQ charge integrating data acquisition system. The PhotoniQ utilizes DC-coupled high speed transimpedance amplifiers that maintain a DC bias voltage of +0.250 volts on each of its inputs. Because the output signal from the S10362 device is derived from its cathode, the current polarity to the PhotoniQ preamplifier is out of its input. For this reason, the Input Polarity under the Data Configuration menu in the PhotoniQ GUI should be set to the default value which is positive. See the PhotoniQ user’s manual for more details. The figure below shows the signal chain from the S10362 MPPC to the PhotoniQ DAQ system.

Figure 3: S10362 Signal Chain

SIB

CO

NN

EC

TOR

CA

BLE

CO

NN

EC

TOR

CA

BLE

CO

NN

EC

TOR

SIB

CO

NN

EC

TOR

User Guide


High Voltage Bias Supplies Eight high voltage bias supplies are available on the SIB108 — one for each MPPC device. The supplies are configured using the dialog box available through the PhotoniQ GUI shown below. They are individually adjusted and enabled using the check boxes for each supply. Alternatively, they can be slaved together by checking the “Master Control” check box. The -100V power source must be connected to the SIB108 to use the on-board bias supplies. This source comes from the high voltage output from the PhotoniQ. Under normal operation it should be set to -85V in the PhotoniQ front panel graphical user interface.

Figure 4: SIB108 Dialog Box



Discriminator Each channel has a leading edge discriminator in its signal path. The discriminator has two user-selectable gain settings (low and high) as well as a user programmable energy threshold. A logic signal is generated by the discriminator when a current pulse on its input exceeds the threshold. The SIB108 GUI dialog box allows the user to set the gain and the threshold for each channel. The threshold can be set between 0 and 100% where 100% is equal to the maximum possible signal amplitude in the discriminator channel. Figure 5 shows the operation of the leading edge discriminator. A negative-going current pulse into its preamplifier results in a negative-going pulse on its output. This pulse is compared to a threshold that is adjusted using the SIB108 dialog box in the PhotoniQ GUI. A logic high is generated after a small delay (td) from when the pulse first crosses the threshold, Vth. The discriminator switches back to a logic low when the pulse crosses the threshold from the opposite direction as it returns back to the baseline level.

Figure 5: Leading Edge Discriminator Timing

Vth

tdTRIGGER

POINT

THRESHOLDPOINT

DISCRIMINATOROUTPUT

INPUT CURRENT

PREAMPOUTPUT

User Guide


Trigger Logic Function Three logic functions are available to the user for the generation of the trigger signal. The first function is the channel pairing function. A trigger signal is created by the SIB108 whenever a logic high from the discriminators is detected on a pair of channels. The pairs are preset such that channels 1 and 2, channels 3 and 4, channels 5 and 6, and channels 7 and 8, constitute the trigger pairs. A simultaneous input pulse detected on any of these channel pairs results in a trigger output from the board. The two other logic functions are the channel “and” and channel “or” functions. With the “and” function, a trigger is generated only when the discriminators from all selected channels in the function detect a pulse. Any combination of channels can be selected for the “and” function. Similarly, the “or” logic function creates a trigger signal if any one of the discriminators from the selected channels detects a pulse. The output trigger polarity from the SIB108 can be set to either positive or negative in the PhotoniQ GUI.

Trigger Status LEDs There are four trigger status LEDs on the SIB108 — each one corresponding to a pair of channels. An LED blinks red to indicate if the discriminators associated with its channel pair detect an incoming energy pulse. The LED flashes green if the trigger logic conditions are met and a trigger output is generated. For stray light sensitive installations, the LEDs can be disabled in the PhotoniQ graphical user interface.



Circuit Board Views

Figure 6: SIB108 Top View

Figure 7: MPPC Mounting Board

Connector for Channels 1 to 4 (J6)

Connector for Channels 5 to 8 (J7)

SIB Connector, Channels 1 to 8 (J1) Configuration

Switches

Trigger Output

(J4)

Trigger Status LEDs

+5V Power Input (J3)

-100V Power Input (J2)

MPPC Socket Pins

Connector to SIB108

User Guide


Component Locations and Functions

Figure 8: Component Locations and Functions

Name Function Description J1 CHANNEL 1 - 8 Sensor interface board connector, channels 1 through 8 from S10362 devices J2 -100V -100V power input for high voltage bias supplies J3 +5V +5V power input J4 TRIG OUT Trigger output J5 EXT IN External input (unused) J6 CH1 – CH4 Connector to MPPC mounting boards (channels 1 through 4) J7 CH5 – CH8 Connector to MPPC mounting boards (channels 5 through 8) J16 JTAG JTAG interface LD3 PAIR A STATUS Bicolor (red/green) LED indicator for Channels 1 and 2 LD4 PAIR B STATUS Bicolor (red/green) LED indicator for Channels 3 and 4 LD8 PAIR C STATUS Bicolor (red/green) LED indicator for Channels 5 and 6 LD2 PAIR D STATUS Bicolor (red/green) LED indicator for Channels 7 and 8 JP1 POWER SELECT Select internal or external power source. Use external only.

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. Set both switches to “ON”.

Table 2: Connectors, LEDS, and Switches

J6J7

J16

JP1

LD8 LD4 LD3LD2

SW1

1ON 2

34

J5J4

J3J2

39

40

1

2

J1



SIB Connector Pinout The SIB108 connectors and cables are fully compatible with all Vertilon PhotoniQ systems. For applications utilizing data acquisition systems other than Vertilon’s PhotoniQ series, the pinout for connector J1 is provided in Table 3 as a reference.

J1

Signal Name

Pin #

Signal Name

Pin #

VB 1 HVMON 2

SIB_DIN0 3 SIB_CLK0 4

P16 5 P32 6

P15 7 P31 8

P14 9 P30 10

P13 11 P29 12

P12 13 P28 14

P11 15 P27 16

P10 17 P26 18

P9 19 P25 20

P8 21 P24 22

P7 23 P23 24

P6 25 P22 26

P5 27 P21 28

P4 29 P20 30

P3 31 P19 32

P2 33 P18 34

P1 35 P17 36

SIB_DOUT0 37 SIB_NCS0 38

SIBDAC 39 +5V 40

Table 3: Sensor Interface Board (SIB) Connectors Power (+5V) supplied through pin 40 if PhotoniQ is not used

Pins 3, 4, 37, 38 used by PhotoniQ and should be left unconnected

Ground supplied through SIB cable shielding

User Guide


Mechanical Information

Figure 9: SIB108 Printed Circuit Board Dimensions

Figure 10: MPPC Mounting Board Dimensions

102.00

90.00

102.00 64.00

1ON 2

34

39

40

1

2

4.22 mm dia.mounting hole( 4 pl.)

25.50 18.00

25.50

18.002.4 mm dia.mounting hole( 4 pl.)



Vertilon Corporation has made every attempt to ensure that the information in this document is accurate and complete. Vertilon assumes no liability for errors or for anyincidental, consequential, indirect, or special damages including, without limitation, loss of use, loss or alteration of data, delays, lost profits or savings, arising from the use of this document or the product which it accompanies. Vertilon reserves the right to change this product without prior notice. No responsibility is assumed by Vertilon forany 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 proprietaryinformation rights of Vertilon Corporation.

© 2012 Vertilon Corporation, ALL RIGHTS RESERVED

UG2858.1.0 Oct 2012

General Safety PrecautionsProduct OverviewSpecificationsTypical SetupHamamatsu S10362 MPPC Mounting BoardDetector Signal ChainHigh Voltage Bias SuppliesDiscriminatorTrigger Logic FunctionTrigger Status LEDsCircuit Board ViewsComponent Locations and FunctionsSIB Connector PinoutMechanical Information

sib108 eight channel sensor interface board › pdf › ug2858.pdfsib108 eight channel sensor...

Documents