CN108036862B - A kind of No. 32 front-end circuit plates intersecting bar shaped anode - Google Patents
A kind of No. 32 front-end circuit plates intersecting bar shaped anode Download PDFInfo
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- CN108036862B CN108036862B CN201711173488.8A CN201711173488A CN108036862B CN 108036862 B CN108036862 B CN 108036862B CN 201711173488 A CN201711173488 A CN 201711173488A CN 108036862 B CN108036862 B CN 108036862B
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- LVKZSFMYNWRPJX-UHFFFAOYSA-N benzenearsonic acid Natural products O[As](O)(=O)C1=CC=CC=C1 LVKZSFMYNWRPJX-UHFFFAOYSA-N 0.000 claims abstract 10
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J11/00—Measuring the characteristics of individual optical pulses or of optical pulse trains
Abstract
The invention discloses a kind of No. 32 front-end circuit plates for intersecting bar shaped anode.No. 32 front-end circuit plates disclosed by the invention for intersecting bar shaped anode include: 32 tunnel analog signal input modules, PASA chip module, driving amplifier module, 32 road analog difference signal output modules and power module；The 32 tunnel analog signal input module receiving electrode signal；The PASA chip module generates differential signal pulse；The driving amplifier module, improves the driving capability of electrode signal；The 32 road analog difference signal output module, for exporting 32 road analog difference signals；The power module is powered.No. 32 front-end circuit plates provided by the invention for intersecting bar shaped anode have the advantages that area is small, light-weight.
Description
Technical field
The present invention relates to single photon detection technical field, in particular to a kind of No. 32 front-end circuits for intersecting bar shaped anode
Plate.
Background technique
Microchannel plate technology development so that possess high count rate, high spatial resolution photon counting imaging detector at
In order to possible.Photon counting imaging detector has the characteristic of accurately detecting small-signal, has been widely used in the ultraviolet spy in space
Survey field.Important component of the position-sensitive anode as detector, for capture from microchannel plate be emitted electron cloud, at
As playing key effect.Common position-sensitive anode has spline shape (WSA) anode, cross coupled delay line (XDL) anode, Vernier
Anode and intersection bar shaped (XS) anode.Wherein, intersect the work that bar shaped anode uses charge division, can effectively improve detection
The counting rate and spatial resolution of device.
The electrode signal of general position-sensitive anode is to draw and access the circuit board for being equipped with amplifier by coaxial cable,
Inherently very faint electrode signal can be enabled further to consume in this way.Moreover, intersecting bar shaped anode possesses 64 strip electrodes altogether, such as
If the every strip electrode of fruit all designs one group of charge sensitive amplifier, shaping amplification circuit, monolith circuit board will seem excessively too fat to move,
The connection of cable also can be intricate.
Summary of the invention
The present invention is directed to overcome defect of the existing technology, the invention adopts the following technical scheme:
The embodiment of the invention provides a kind of No. 32 front-end circuit plates for intersecting bar shaped anode.The intersection bar shaped anode
No. 32 front-end circuit plates include: 32 tunnel analog signal input modules, PASA (Pre-Amplifier Shaping Amplifier,
That is the preposition amplification of charge-sensitive-shaping amplification) chip module, driving amplifier module, 32 road analog difference signal output modules
And power module；
The 32 tunnel analog signal input module is used for receiving electrode signal, and the electrode signal is transmitted to described
PASA chip module；
The PASA chip module, the electrode signal for transmitting the 32 tunnel analog signal input module are put
Greatly, shaping, and generate differential signal pulse；
The driving amplifier module, for improving the driving capability of electrode signal；
The 32 road analog difference signal output module, it is convenient electric with next stage for exporting 32 road analog difference signals
Road plate completes signal transmitting；
The power module, for the input voltage of external power supply to be converted into the device institute of No. 32 front-end circuit plate
The stable voltage needed, and the PASA chip module and driving amplifier module are powered.
In some embodiments, the 32 tunnel analog signal input module includes the connector of 32 pins, the company
Connecing device can be plugged.
In some embodiments, the waveform approximate Gaussian waveform of the differential signal pulse.
In some embodiments, the driving amplifier module includes 84 channel high-speed-differential amplifier chips.
In some embodiments, the 32 road analog difference signal output module include: circuit board edge connector and
FPC (Flexible Printed Circuit, flexible circuit board) winding displacement；
The head of the FPC winding displacement can be connected with the circuit board edge connector, so that electrode signal to be transmitted to
Next stage circuit plate.
In some embodiments, the circuit board edge connector is that the board edge with 80 pins connects
Device.
In some embodiments, the main body of the power module is voltage stabilizing chip.
In some embodiments, the power module is also used to filter out the part high-frequency noise of external power supply.
In some embodiments, the PASA chip module includes: two panels PASA chip and standard voltage circuit, described
Standard voltage circuit provides reference voltage for PASA chip.
In some embodiments, the PASA chip interior is integrated with 16 road charge sensitive amplifiers, shaping amplification circuit.
Technical effect of the invention: it is disclosed by the invention intersect bar shaped anode No. 32 front-end circuit plates have area it is small,
It is light-weight, convenient directly plug in the anode detector back side the advantages of, and can pass through the path that reduction electrode signal is passed by with
And the output mode of differential signal enhances the anti-interference ability of signal.
Detailed description of the invention
Fig. 1 is a kind of principle frame of No. 32 front-end circuit plates for intersecting bar shaped anode according to an embodiment of the invention
Figure；
Fig. 2 is a kind of schematic diagram of No. 32 front-end circuit plates for intersecting bar shaped anode according to an embodiment of the invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing and specific implementation
Example, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only to explain this hair
It is bright, but not to limit the present invention.
Referring to fig. 1 and fig. 2, the embodiment of the invention provides a kind of No. 32 front-end circuit plates for intersecting bar shaped anode
100.No. 32 front-end circuit plates 100 for intersecting bar shaped anode include: 32 tunnel analog signal input modules 10, PASA chip dies
Block 20, driving amplifier module 30,32 road analog difference signal output modules 40 and power module 50；
The 32 tunnel analog signal input module 10 is used for receiving electrode signal, and the electrode signal is transmitted to institute
State PASA chip module 20；
The PASA chip module 20, the electrode signal for transmitting the 32 tunnel analog signal input module 10 carry out
Amplification, shaping, and generate differential signal pulse；
The driving amplifier module 30, for improving the driving capability of electrode signal；
The 32 road analog difference signal output module 40, for exporting 32 road analog difference signals, convenient and next stage
Circuit board completes signal transmitting；
The power module 50, for the input voltage of external power supply to be converted into the device of No. 32 front-end circuit plate
Required stable voltage, and the PASA chip module 20 and driving amplifier module 30 are powered.
In some embodiments, the 32 tunnel analog signal input module 10 includes the connector of 32 pins, described
Connector can be plugged in some embodiments, and the circuit board directly can be plugged and be received at the detector back side
32 path electrode signals.
In some embodiments, the waveform approximate Gaussian waveform of the differential signal pulse.In some embodiments, PASA
Chip module includes two panels PASA chip and the dedicated standard voltage circuit of PASA chip, for inputting to 32 tunnel analog signals
The electrode signal that module receives amplifies, shaping, generates peak-to-peak value about 2V, pulsewidth (FWHM-full width at
Half maxima, full width at half maximum (FWHM)) about 210ns approximate Gaussian waveform differential signal pulse.
In some embodiments, the driving amplifier module 30 includes 84 channel high-speed-differential amplifier chips.
In some embodiments, the 32 road analog difference signal output module 40 include: circuit board edge connector with
And FPC winding displacement；
The head of the FPC winding displacement can be connected with the circuit board edge connector, so that electrode signal to be transmitted to
Next stage circuit plate.
In some embodiments, the circuit board edge connector is that the board edge with 80 pins connects
Device.
In some embodiments, the main body of the power module 50 is voltage stabilizing chip.Power module 50 is used for external electrical
+ 5V the input voltage in source is converted on circuit board+3.3V voltage stable needed for each device, and can filter out external power supply
Part high-frequency noise.
In some embodiments, the power module 50 is also used to filter out the part high-frequency noise of external power supply.
In some embodiments, the PASA chip module 20 includes: two panels PASA chip and standard voltage circuit, institute
It states standard voltage circuit and provides reference voltage for PASA chip.
In some embodiments, the PASA chip interior is integrated with 16 road charge sensitive amplifiers, shaping amplification circuit.
Technical effect of the invention: it is disclosed by the invention intersect bar shaped anode No. 32 front-end circuit plates have area it is small,
It is light-weight, convenient directly plug in the anode detector back side the advantages of, and the path passed by by reduction electrode signal and
The output mode of differential signal enhances the anti-interference ability of signal.
The output signal of the intersection dedicated No. 32 front-end circuit plate of bar shaped anode of the invention is peak-to-peak value about 2V, pulsewidth
(FWHM) the differential signal pulse of the approximate Gaussian waveform of about 210ns, after there is the anti-interference ability for improving signal and convenience
The advantages of continuous analog to digital conversion circuit is sampled.
Concrete scheme of the invention is described in further detail combined with specific embodiments below.
Embodiment 1:
Refering to what is shown in Fig. 2, No. 32 front-end circuit plates provided in this embodiment for intersecting bar shaped anode.Institute of the embodiment of the present invention
The circuit board of offer includes 32 tunnel analog signal input modules, PASA chip module, driving amplifier module, 32 tunnel analog differentials
Signal output module and power module this five modules.
Its working principle is that:
After ultraviolet photon enters photon counting imaging detector, eventually in each electricity of intersection bar shaped anode at detector rear
Pole generates electrode signal.Electrode signal is collected by 32 tunnel analog signal input module of No. 32 front-end circuit Ban by circuit board.
The main body of 32 tunnel analog signal input modules is 32 pin connectors of a Samtec company, concrete model TMS-116-
03-L-D-RA.The direct plug of circuit board and detector can also be realized by this connector.
32 path electrode signals collected by circuit board initially enter PASA chip module, this module contains two panels
ALICE TPC PASA chip and standard voltage circuit.A piece of PASA chip interior is integrated with 16 road charge sensitive amplifiers, whole
Shape amplifying circuit, it can amplify the electrode signal of input, shaping, and export peak-to-peak value about 2V, pulsewidth (FWHM) about
The differential signal pulse of the approximate Gaussian waveform of 210ns.Standard voltage circuit provides the VREFP reference of 550mV for PASA chip
Tri- kinds of reference voltages of VREFN of voltage, the VCM of 1023mV and 1500mV.Standard voltage circuit relates generally to the steady of a 1.2V
Press the amplifier chip (OPA4364) of diode (LM4041-1V2) and 4 channels.
Driving amplifier module will receive the output signal from PASA chip, and improve the driving capability of signal.This mould
Block contains the fully-differential amplifier chip in 84 channels, model THS4524.The bandwidth of THS4524 chip is 145MHz,
The enlargement ratio that amplifier connects circuit is 1, can realize the raising to electrode signal driving capability well.
32 road analog difference signal output modules contain a circuit board edge connector of Samtec company, particular type
Number be MEC6-140-02-L-D-RA1.In addition, this module also includes the FPC row that can transmit 32 road analog difference signals
Line.The head of FPC winding displacement can be connected with circuit board edge connector, so that electrode signal is transmitted to next stage circuit plate.
The main body of power module is a piece of voltage stabilizing chip, model LT1764-3V3,.This module can be by the outer of+5V
Portion's supply voltage is stablized in+3.3V, and provides the low noise power supply of reliable+3.3V for each chip of circuit board.
It is an advantage of the invention that board area is small, light-weight, it is convenient directly to be plugged at the anode detector back side；And
And the output signal of circuit board is the differential signal arteries and veins of the approximate Gaussian waveform of peak-to-peak value about 2V, pulsewidth (FWHM) about 210ns
Punching, is conducive to the anti-interference ability for improving signal and subsequent A/D conversion circuit is sampled.
Those skilled in the art should further appreciate that, describe in conjunction with the embodiments described herein
Each exemplary unit and algorithm steps, can be realized with electronic hardware, computer software, or a combination of the two, in order to clear
Illustrate to Chu the interchangeability of hardware and software, generally describes each exemplary group according to function in the above description
At and step.These functions are implemented in hardware or software actually, the specific application and design depending on technical solution
Constraint condition.Professional technician can use different methods to achieve the described function each specific application, but
It is that such implementation should not be considered as beyond the scope of the present invention.
The step of method described in conjunction with the examples disclosed in this document or algorithm, can be executed with hardware, processor
The combination of software module or the two is implemented.Software module can be placed in random access memory (RAM), memory, read-only memory
(ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technical field
In any other form of storage medium well known to interior.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements, unless otherwise restricted clearly.For those of ordinary skill in the art
For, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
The above described specific embodiments of the present invention are not intended to limit the scope of the present invention..Any basis
Any other various changes and modifications made by technical concept of the invention should be included in the guarantor of the claims in the present invention
It protects in range.
Claims (5)
1. a kind of No. 32 front-end circuit plates for intersecting bar shaped anode characterized by comprising
32 tunnel analog signal input modules, PASA chip module, driving amplifier module, 32 road analog difference signal output modules
And power module；
The 32 tunnel analog signal input module is used for receiving electrode signal, and the electrode signal is transmitted to the PASA
Chip module；
The PASA chip module, the electrode signal for transmitting the 32 tunnel analog signal input module amplify, are whole
Shape, and generate differential signal pulse；
The driving amplifier module, for improving the driving capability of electrode signal；
The 32 road analog difference signal output module, for exporting 32 road analog difference signals, convenient and next stage circuit plate
Complete signal transmitting；
The power module, for the input voltage of external power supply to be converted into needed for the device of No. 32 front-end circuit plate
Stable voltage, and the PASA chip module and driving amplifier module are powered；
Wherein:
The 32 tunnel analog signal input module includes the connector of 32 pins, and the connector can be plugged；
The PASA chip module includes: two panels PASA chip and standard voltage circuit, and the standard voltage circuit is PASA
Chip provides reference voltage, and the PASA chip interior is integrated with 16 road charge sensitive amplifiers, shaping amplification circuit；
The driving amplifier module includes 84 channel high-speed-differential amplifier chips；
The 32 road analog difference signal output module includes: circuit board edge connector and FPC winding displacement；The FPC winding displacement
Head be connected with the circuit board edge connector, so that electrode signal is transmitted to next stage circuit plate.
2. No. 32 front-end circuit plates according to claim 1 for intersecting bar shaped anode, which is characterized in that the differential signal
The waveform approximate Gaussian waveform of pulse.
3. No. 32 front-end circuit plates according to claim 1 for intersecting bar shaped anode, which is characterized in that the circuit board edge
Edge connector is the circuit board edge connector with 80 pins.
4. No. 32 front-end circuit plates according to claim 1 for intersecting bar shaped anode, which is characterized in that the power module
Main body be voltage stabilizing chip.
5. No. 32 front-end circuit plates according to claim 1 for intersecting bar shaped anode, which is characterized in that the power module
It is also used to filter out the part high-frequency noise of external power supply.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711173488.8A CN108036862B (en) | 2017-11-22 | 2017-11-22 | A kind of No. 32 front-end circuit plates intersecting bar shaped anode |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711173488.8A CN108036862B (en) | 2017-11-22 | 2017-11-22 | A kind of No. 32 front-end circuit plates intersecting bar shaped anode |
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| CN108036862A CN108036862A (en) | 2018-05-15 |
| CN108036862B true CN108036862B (en) | 2019-09-27 |
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| CN109540302A (en) * | 2018-11-09 | 2019-03-29 | 中国科学院长春光学精密机械与物理研究所 | Based on the single photon 3-D imaging system for intersecting bar shaped anode detector |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101170362A (en) * | 2007-11-08 | 2008-04-30 | 华东师范大学 | APD single photon detection circuit module |
| CN102998008A (en) * | 2012-11-28 | 2013-03-27 | 广东汉唐量子光电科技有限公司 | Symmetrical double-avalanche-photo-diode (APD) balanced near-infrared photon detector |
| CN104218917A (en) * | 2014-07-24 | 2014-12-17 | 安徽问天量子科技股份有限公司 | Self-difference filter device for eliminating peak noise of APD (avalanche photoelectric diode) avalanche signal output end |
| CN108562366A (en) * | 2018-04-27 | 2018-09-21 | 电子科技大学 | A kind of simulation counting circuit for single-photon detector |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103560760B (en) * | 2013-11-13 | 2019-05-03 | 福禄克精密测量有限公司 | Amplifying circuit and measuring device |
-
2017
- 2017-11-22 CN CN201711173488.8A patent/CN108036862B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101170362A (en) * | 2007-11-08 | 2008-04-30 | 华东师范大学 | APD single photon detection circuit module |
| CN102998008A (en) * | 2012-11-28 | 2013-03-27 | 广东汉唐量子光电科技有限公司 | Symmetrical double-avalanche-photo-diode (APD) balanced near-infrared photon detector |
| CN104218917A (en) * | 2014-07-24 | 2014-12-17 | 安徽问天量子科技股份有限公司 | Self-difference filter device for eliminating peak noise of APD (avalanche photoelectric diode) avalanche signal output end |
| CN108562366A (en) * | 2018-04-27 | 2018-09-21 | 电子科技大学 | A kind of simulation counting circuit for single-photon detector |
Non-Patent Citations (1)
| Title |
|---|
| 使用感应电荷位敏阳极的极紫外单光子计数成像系统;尼启良 等;《光学精密工程》;20101231;第18卷(第12期);第2543-2548页 * |
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