Vertilon SIB164B Скачать руководство пользователя страница 15 | Manualshive

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Vertilon SIB164B Скачать руководство пользователя страница 15

User Guide

- 15 -

Vertilon Corporation, 66 Tadmuck Road, Westford, MA 01886

/

Tel: (978) 692-7070

/

Fax: (978) 692-7010

/

www.vertilon.com

Zero Slope Discriminator

The zero slope discriminator works by generating a trigger signal at the inflection point of the input pulse. It is this
point where the pulse is at its peak and its slope transitions from positive to negative. Since AMP4 effectively
operates on the derivative of the input pulse, its output crosses zero where the slope of the pulse is zero. This occurs
at the pulse peak as shown in Figure 7. The threshold comparator compares AMP4 to the user-adjustable threshold
(V

th

) to arm the discriminator after which the trigger output fires when the AMP4 signal again crosses the baseline.

Figure 7: Zero Slope Discriminator Timing

PREAMP

OUTPUT

V

th

t

d3

TRIGGER

POINT

THRESHOLD

POINT

TRIG OUT

LAST

DYNODE

AMP4

BASELINE

LEVEL

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Содержание SIB164B

Страница 1: ...User Guide Vertilon Corporation 66 Tadmuck Road Westford MA 01886 Tel 978 692 7070 Fax 978 692 7010 www vertilon com SIB164B 64 Channel PMT Interface Board Hamamatsu H7546B H12428 Series...

Страница 2: ...hout 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 th...

Страница 3: ...User Guide 3 Vertilon Corporation 66 Tadmuck Road Westford MA 01886 Tel 978 692 7070 Fax 978 692 7010 www vertilon com...

Страница 4: ...lon com Table of Contents General Safety Precautions 6 Product Overview 7 Specifications 9 Typical Setup 11 High Voltage Interface 11 Photomultiplier Tube Anode Circuits 12 Last Dynode Preamplifier 12...

Страница 5: ...Figure 4 Anode Circuit 12 Figure 5 SIB164B Dialog Box 13 Figure 6 Leading Edge Discriminator Timing 14 Figure 7 Zero Slope Discriminator Timing 15 Figure 8 Top and Bottom Views 16 Figure 9 Component L...

Страница 6: ...ct 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 Sensiti...

Страница 7: ...cialized 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 tr...

Страница 8: ...NSOR INTERFACE BOARD AMP1 Rp GAIN Cin INV AMP2 INV AMP3 THRESHOLD COMP PREAMP OUT dv dt INV AMP4 TRIG HAMAMATSU H7546B H12428 8 X 8 MULTIANODE PHOTOMULTIPLIER TUBE P1 P2 P3 P31 P35 P63 P64 P34 P33 P32...

Страница 9: ...lel Resistance Rp 500 Amplifier 1 Gain A1 3 10 dB Vin is a triangular pulse 18 nsec rise time 30 nsec fall time applied to last dynode preamplifier input DY12 Amplifier 2 Inverting Gain A2 0 dB Amplif...

Страница 10: ...m Min Typ Max Units Notes TRIGGER OUTPUT Output Impedance 50 Logic High Output Level VOH 4 3 4 8 V IOH 32mA Logic Low Output Level VOL 0 2 0 6 V IOL 32mA POWER Supply Voltage Vsupply 4 9 5 0 5 1 V Sup...

Страница 11: ...12428 cathode and a trigger cable that supplies the trigger to the PhotoniQ from one of the SIB164B s two discriminators In an alternative configuration when precision timing or coincidence detection...

Страница 12: ...ibility of damage due to ESD the PMT s anodes each have a 2 2 Mohm shunt resistor to a common low impedance point This point is biased at a voltage equal to the bias voltage VB of the charge integrati...

Страница 13: ...User Guide 13 Vertilon Corporation 66 Tadmuck Road Westford MA 01886 Tel 978 692 7070 Fax 978 692 7010 www vertilon com Figure 5 SIB164B Dialog Box...

Страница 14: ...re compared to the discriminator threshold that is set through the SIB164B dialog box in the PhotoniQ GUI A logic high for positive polarity control is generated on the trigger output SMB connector J5...

Страница 15: ...from positive to negative Since AMP4 effectively operates on the derivative of the input pulse its output crosses zero where the slope of the pulse is zero This occurs at the pulse peak as shown in F...

Страница 16: ...ww vertilon com Top and Bottom Views Figure 8 Top and Bottom Views 1 High Voltage Input J3 6 Trigger Output J5 2 Preamp Output J6 7 External Input J7 3 Sensor Interface Board Connector J1 8 High Volta...

Страница 17: ...10 www vertilon com Component Locations and Functions Figure 9 Component Locations and Functions LD1 DL1 DL2 DL3 P35 P34 P33 P32 P31 P30 P29 P28 P27 P26 P25 P24 P23 P22 P21 P20 P19 P18 P17 P16 P15 P14...

Страница 18: ...Sets the device type for control by the PhotoniQ Set both switches to ON Table 3 Switches and LEDs Name Ref Description 5V P35 Main 5V power to the SIB164B supplied by the PhotoniQ through SIB connect...

Страница 19: ...1 HVMON 2 VB 1 HVMON 2 SIB_DIN0 3 SIB_CLK0 4 SIB_DIN1 3 SIB_CLK1 4 P16 5 P32 6 P48 5 P64 6 P15 7 P31 8 P47 7 P63 8 P14 9 P30 10 P46 9 P62 10 P13 11 P29 12 P45 11 P61 12 P12 13 P28 14 P44 13 P60 14 P11...

Страница 20: ...Tadmuck Road Westford MA 01886 Tel 978 692 7070 Fax 978 692 7010 www vertilon com Mechanical Information Figure 10 SIB164B Printed Circuit Board Dimensions Mounting Hole 4 22 mm 4 pl ALL DIMENSIONS I...

Страница 21: ...t 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...

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