CN207978063U - A kind of X-ray streak camera static test system and dynamic test system - Google Patents
A kind of X-ray streak camera static test system and dynamic test system Download PDFInfo
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- CN207978063U CN207978063U CN201721733878.1U CN201721733878U CN207978063U CN 207978063 U CN207978063 U CN 207978063U CN 201721733878 U CN201721733878 U CN 201721733878U CN 207978063 U CN207978063 U CN 207978063U
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Abstract
The utility model is related to a kind of X-ray streak camera static test system and dynamic test systems.The utility model is based on electron-optical MTF theories and graduation template photocathode makes, on large working area product X-ray streak camera, under two operating modes of static test pattern and dynamic test pattern, streak camera spatial resolution is measured, streak camera SMTF, DMTF and limit space resolution ratio are calculated.This method can be fitted to obtain the limit space resolution distribution of streak camera whole imaging region by measured data of experiment, to realize that laser ICF quantitative, Quasi-quantitative measurement and " precise treatment " diagnose target and be of great significance.
Description
Technical field
The utility model is related to X-ray streak camera imaging performance testing fields, more specifically to a kind of X-ray
Streak camera static test system and dynamic test system.
Background technology
X-ray streak camera is the important diagnostic instrument for obtaining the continuous change in time and space information of ultrafast X-ray/ultraviolet radiation
Device, the imaging research of X-ray/ultraviolet light ultrafast phenomena to natural science, clean energy resource, Material Physics, photo-biological, photochemistry,
The scientific researches such as ultrashort laser technology, laser physics, high-energy physics and technical field play an important roll.Especially Study of Laser
It drives and obtains implosion dynamics and implosion compression information in inertial confinement fusion, obtain the continuous change in time and space image of plasma radiation
Indispensable diagnostic instrments.The X-ray streak camera of large working area product can obtain more time, space, power spectrum diagnosis
Information.Since the design and electrode of electron-optical system are shelved there are error, the X-ray streak camera of large working area product exists not
Evitable aberration, camera imaging performance need Accurate Calibration and test.
Spatial modulation transfer function (modulation transfer function, MTF) is most objective evaluation camera lens, phase
The method and standard of the optical imaging systems such as machine.The error of X-ray streak camera MTF and real system that analogy method obtains exist
In the transmitting impedance effect, fluorescent screen manufacture craft, faceplate formation transmission and the spy that do not consider photocathode in X-ray streak camera
The factors such as device sampling loss are surveyed, spatial resolution theoretical value is generally more than experimental measurements, and can not be accurately obtained practical phase
The limit space resolution ratio of machine system.It is usually knife-edge method and noise in the experimental test procedures of electron optical imaging system MTF
Theory method.Knife-edge method obtains sharp keen interface due to more difficult, and gained MTF is less than normal.Noise Theory method acquisition MTF is bigger than normal, decaying
Slowly, hangover length, error is larger under high spatial resolution.
Camera difference off-axis distance spatial resolution caused by large working area accumulates the aberrations such as the curvature of field of X-ray streak camera is not
Together.Due to being difficult to make multigroup resolution ratio pattern in graduation cathode same position, X rays streak camera, which uses, before divides
The test of template photocathode is drawn, such as Fig. 1 can only obtain the spatial resolution whether imaging at the imaging point reaches test；Such as figure
2, cannot obtain MTF at this, limit space resolution ratio and full imaging surface limit space resolution ratio.
Utility model content
The technical problem to be solved by the present invention is to solve the existing defect of the above-mentioned prior art, a kind of X is provided
Ray streak camera static test system and dynamic test system.
Technical solution adopted by the utility model to solve its technical problems is：It is static to construct a kind of X-ray streak camera
Test system, including be arranged in vacuum chamber, the streak camera for receiving the ultraviolet signal that light source is sent out, the striped phase
The input terminal of machine is provided with the differentiation template au cathode for receiving the ultraviolet signal；
It is connect with the streak camera, the high voltage power supply for providing drive signal for the streak camera, the high pressure
Power supply connects the streak camera by divider；
The output end of the streak camera is provided with the optical signal that the fluorescent screen for receiving the streak camera exports
CCD camera, the CCD camera connects computer, and converts optical signals to digital signal and be transmitted to the computer.
Preferably, X-ray streak camera static test system described in the utility model, the light source are ultraviolet dish type
Lamp；
The differentiation template au cathode includes stainless steel base, the fused quartz layer that is arranged on the stainless steel base, with
And the interval aluminium film on the fused quartz layer is set, it is golden film in the interval aluminium film.
In addition, the utility model also provides a kind of X-ray streak camera static test, it is applied to above-mentioned X-ray item
Line camera static test system, includes the following steps：
S1, differentiation template au cathode receive the ultraviolet of ultraviolet dish type lamp transmitting under the static test pattern of streak camera
Light, high voltage power supply output drive signal drive the streak camera；
S2, CCD camera receive the optical signal of the fluorescent screen output of the streak camera, and the optical signal is converted to number
Word signal is simultaneously transmitted to the computer, obtains striped digital picture；
S3, the fringe intensity distribution for obtaining the striped digital picture, different from being sampled at symmetrical centre different distance
The static striped picture of resolution ratio, obtains the contrast of static light and shade striped；
S4, the modulation degrees of data at multiple off-axis distances is obtained according to the relationship of modulation degree and contrast；
S5, corresponding electronics disc of confusion half at the distance is obtained according to the modulation degrees of data at multiple off-axis distances
Diameter；
Letter is transmitted in S6, the whole Static-state Space modulation obtained according to the electronics disc of confusion radius at the camera off-axis distance
Number；
S7, when the Static-state Space modulation transfer function drops to the first preset value, obtain the streak camera this at
Static limit spatial resolution at image position.
Preferably, X-ray streak camera static test described in the utility model obtains in the step S3 quiet
The contrast of state light and shade striped includes：The contrast of static light and shade striped is obtained according to formula (1)；
Wherein, the ImaxFor the intensity of bright fringe in the static striped picture, the IminFor in the static striped picture
Dark fringeBy forceDegree；
The relationship of modulation degree and contrast is in the step S4：
MTF (f)=π/4CTF (f) (2)
The step S5 includes：The distance is obtained by formula (3) according to the modulation degrees of data at multiple off-axis distances
Locate corresponding electronics disc of confusion radius ρe；
MTF (f)=exp [- (π ρef)2] (3)
The step S6 includes：According to the electronics disc of confusion radius ρe, then camera obtained by the formula (3) this is off-axis
Whole Static-state Space modulation transfer function at distance.
Preferably, X-ray streak camera static test described in the utility model, first preset value are
0.393%；
Further include after the step S7：
S8, by the multiple off-axis distances of the streak camera the static limit spatial resolution fitting camera imaging from
Wheelbase from static limit spatial resolution conic section relationship；
S9, obtained by the static limit spatial resolution conic section relationship, camera quiescent imaging regional extent it is described
The static limit spatial resolution of streak camera full imaging region under static mode of operation is distributed.
In addition, the utility model also provides a kind of X-ray streak camera dynamic test system, including be arranged in vacuum chamber,
The input terminal of streak camera for receiving the ultraviolet signal that laser is sent out, the streak camera is provided with for receiving
State the differentiation template au cathode of ultraviolet signal；
It is connect with the streak camera, the high voltage power supply for providing drive signal for the streak camera, the high pressure
Power supply connects the streak camera by scanning circuit；
The output end of the streak camera is provided with the optical signal that the fluorescent screen for receiving the streak camera exports
CCD camera, the CCD camera connects computer, and converts optical signals to digital signal and be transmitted to the computer；
Photoelectric sensor for receiving the control optical signal that the laser is sent out, the photoelectric sensor pass through delay
Device is separately connected scanning circuit and booster, and the booster is arranged between the streak camera and CCD camera.
Preferably, X-ray streak camera dynamic test system described in the utility model, the ultraviolet signal pass through light
Road regulating device injects the differentiation template au cathode, and the light path regulating device includes total reflective mirror M1, half-reflecting half mirror M2, half
Anti- pellicle mirror M3, total reflective mirror M4；
The differentiation template au cathode includes stainless steel base, the fused quartz layer that is arranged on the stainless steel base, with
And the interval aluminium film on the fused quartz layer is set, it is golden film in the interval aluminium film.
In addition, the utility model also provides a kind of X-ray streak camera dynamic testing method, it is applied to above-mentioned X-ray item
Line camera dynamic test system, includes the following steps：
T1, differentiation template au cathode receive the ultraviolet light of laser transmitting under the dynamic test pattern of streak camera, high
Voltage source drives the streak camera by scanning circuit output drive signal, wherein the scanning circuit is by the laser
The control optical signal of transmitting controls；
T2, CCD camera receive the optical signal of the fluorescent screen output of the streak camera, convert optical signals to digital letter
Number and be transmitted to the computer, obtain striped digital picture；
T3, laser facula is repeatedly moved, makes the ultraviolet light in the different zones of the differentiation template au cathode, surveys
The striped digital picture under examination and record different distance；
T4, the fringe intensity distribution for obtaining the striped digital picture, at different from sampling at symmetry axis different distance points
The dynamic fringe picture of resolution, obtains the contrast of dynamic light and shade striped；
T5, the modulation degrees of data at multiple off-axis distances is obtained according to the relationship of modulation degree and contrast；
T6, corresponding electronics disc of confusion half at the distance is obtained according to the modulation degrees of data at multiple off-axis distances
Diameter；
T7, dynamic space modulation transfer function at the camera off-axis distance is obtained according to the electronics disc of confusion radius；
T8, when the dynamic space modulation transfer function drops to the second preset value, obtain the streak camera this at
Dynamic limit spatial resolution at image position.
Preferably, X-ray streak camera dynamic testing method described in the utility model is moved in the step T4
The contrast of state light and shade striped includes：The contrast of dynamic light and shade striped is obtained according to formula (4)；
Wherein, the ImaxFor the intensity of bright fringe in the dynamic fringe picture, the IminFor in the dynamic fringe picture
The intensity of dark fringe
The relationship of modulation degree and contrast is in the step T5：
MTF (f)=π/4CTF (f) (5)
The step T6 includes：The distance is obtained by formula (6) according to the modulation degrees of data at multiple off-axis distances
Locate corresponding electronics disc of confusion radius ρe；
MTF (f)=exp [- (π ρef)2] (6)
The step T7 includes：According to the electronics disc of confusion radius ρe, then camera obtained by the formula (6) this is off-axis
Dynamic space modulation transfer function at distance.
Preferably, X-ray streak camera dynamic testing method described in the utility model, second preset value are
0.393%；
Further include after the step T8：
T9, by the multiple off-axis distances of the streak camera the dynamic limit spatial resolution fitting camera imaging from
Wheelbase from dynamic limit spatial resolution conic section relationship；
T10, obtained by the dynamic limit spatial resolution conic section relationship, camera dynamic imaging regional extent it is described
The dynamic limit spatial resolution of streak camera full imaging region under dynamic operation mode is distributed.
A kind of X-ray streak camera static test system and dynamic test system for implementing the utility model, have following
Advantageous effect：The utility model is based on electron-optical MTF theories and graduation template photocathode makes, and is penetrated in large working area product X
On line streak camera, under static and two operating modes of dynamic, streak camera spatial resolution is measured, streak camera is calculated
SMTF, DMTF and limit space resolution ratio.This method can be fitted to obtain streak camera whole imaging area by measured data of experiment
The limit space resolution distribution in domain, to realize that laser ICF quantitative, Quasi-quantitative measurement and " precise treatment " diagnose target with important
Meaning.
Description of the drawings
Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing：
Fig. 1 is prior art X-ray streak camera Static-state Space resolution test schematic diagram；
Fig. 2 is prior art X-ray streak camera spatial resolution test result；
Fig. 3 is a kind of structural schematic diagram of X-ray streak camera static test system of the utility model；
Fig. 4 is the production flow diagram for breaking up template au cathode in the utility model；
Fig. 5 is a kind of flow chart of X-ray streak camera static test of the utility model；
Fig. 6 is the utility model striped X-ray streak camera static test image；
Fig. 7 is the SMTF of the utility model striped X-ray streak camera difference off-axis distance；
Fig. 8 is the relational graph of the utility model streak camera static limit spatial resolution and off-axis distance；
Fig. 9 is the full frame static limit spatial resolution figure of the utility model streak camera；
Figure 10 is a kind of structural schematic diagram of X-ray streak camera dynamic test system of the utility model；
Figure 11 is a kind of flow chart of X-ray streak camera dynamic testing method of the utility model；
Figure 12 is the utility model striped X-ray streak camera dynamic test image；
Figure 13 is the DMTF of the utility model striped X-ray streak camera difference off-axis distance；
Figure 14 is the relational graph of the utility model streak camera dynamic limit spatial resolution and off-axis distance；
Figure 15 is the full frame dynamic limit spatial resolution figure of the utility model streak camera.
Specific implementation mode
For a clearer understanding of the technical features, objectives and effects of the utility model, now control attached drawing is detailed
Illustrate specific embodiment of the present utility model.
Fig. 1 is prior art X-ray streak camera Static-state Space resolution test schematic diagram.
It is sent out in vacuum chamber, for receiving light source specifically, the X-ray streak camera static test system includes setting
Ultraviolet signal X-ray streak camera (hereinafter referred to as streak camera), the input terminal of streak camera is provided with for receiving
The differentiation template au cathode (differentiation cathode) of ultraviolet signal, it is preferable that the X-ray streak camera static test of the utility model
System, light source are ultraviolet dish type lamp.It is connect with streak camera, the high voltage power supply for providing drive signal for streak camera, it is high
Voltage source connects streak camera by divider；The fluorescent screen that the output end of streak camera is provided with for receiving streak camera is defeated
The CCD camera of the optical signal gone out, CCD camera connects computer, and converts optical signals to digital signal and be transmitted to meter
Calculation machine.
Fig. 4 is the production flow diagram for breaking up template au cathode in the utility model.It includes stainless steel to break up template au cathode
Pedestal, the fused quartz layer being arranged on stainless steel base and the interval aluminium film being arranged on fused quartz layer, be spaced aluminium film on be
Golden film.Testing the special production method for breaking up template au cathode is：The conductive aluminium film of one layer of 100nm is deposited in quartz substrate,
Using the mask specially made, 30nm golden films are finally deposited in the photoetching slit graduation template resolution chart case in aluminium film, as
Electron emission layer.Slit the overall length 30mm, wide 0.1mm of graduation cathode；It is that 20lp/mm and 22lp/mm is differentiated at left and right sides of center
Rate pattern, pattern resolution are decremented to cathode edge with the intervals 4lp/mm；Other than edge 10lp/mm pattern lengths 4mm, remaining
Pattern length is 3mm, is spaced 0.5mm；Ensure the photoetching error of resolution ratio pattern in 1 μ m simultaneously.Use graduation
Cathode test spatial resolution, eliminates the influence of testing light source directionality, and test result is objective.
Fig. 5 is a kind of flow chart of X-ray streak camera static test of the utility model.
Specifically, the X-ray streak camera static test is applied to above-mentioned X-ray streak camera static test system
System, includes the following steps：
S1, differentiation template au cathode receive the ultraviolet of ultraviolet dish type lamp transmitting under the static test pattern of streak camera
Light, high voltage power supply output drive signal drive streak camera.
S2, CCD camera receive the optical signal of the fluorescent screen output of streak camera, convert optical signals to digital signal simultaneously
It is transmitted to computer, obtains striped digital picture.
S3, the fringe intensity distribution for obtaining striped digital picture, from the different resolutions of sampling at symmetrical centre different distance
The static striped picture of rate, obtains the contrast of static light and shade striped.Further, the X-ray streak camera of the utility model is static
Test method, the contrast that static light and shade striped is obtained in step S3 include：Pair of static light and shade striped is obtained according to formula (1)
Degree of ratio；
Wherein, ImaxFor the intensity of bright fringe in static striped picture, f is the spatial frequency of candy strip, IminFor static item
The intensity of dark fringe in line picture.
S4, the modulation degrees of data at multiple off-axis distances is obtained according to the relationship of modulation degree and contrast.Further, step
The relationship of modulation degree and contrast is in S4：
MTF (f)=π/4CTF (f) (2)
Wherein, MTF (f) is modulation degree.
S5, corresponding electronics disc of confusion radius at the distance is obtained according to the modulation degrees of data at multiple off-axis distances.Into
One step, step S5 include：The corresponding electricity of the distance is obtained by formula (3) according to the modulation degrees of data at multiple off-axis distances
Sub- disc of confusion radius ρe。
MTF (f)=exp [- (π ρef)2] (3)
Wherein, exp is the exponential function that natural constant e is bottom, and π is pi；
S6, whole Static-state Space modulation transfer function at the camera off-axis distance is obtained according to electronics disc of confusion radius
SMTF(static modulation transfer function).Further, step S6 includes：According to electronics disc of confusion half
Diameter ρe, then whole Static-state Space modulation transfer function of the camera off-axis distance obtained by formula (3).
S7, when Static-state Space modulation transfer function drops to the first preset value, obtain at the streak camera image space
Static limit spatial resolution.Preferably, the first preset value is 0.393%, i.e. at CTF=5%, obtain streak camera this at
Static limit spatial resolution at image position.
S8, by the multiple off-axis distances of streak camera static limit spatial resolution be fitted camera imaging off-axis distance and
Static limit spatial resolution conic section relationship.
S9, streak camera is obtained by static limit spatial resolution conic section relationship, camera quiescent imaging regional extent
The static limit spatial resolution distribution of full imaging region under static mode of operation.
Now above-mentioned X-ray streak camera dynamic testing method is verified by experiment, experimental result such as table 1 and figure
6 to shown in Fig. 9.
Table 1
Figure 10 is a kind of structural schematic diagram of X-ray streak camera dynamic test system of the utility model.
Specifically, the X-ray streak camera dynamic test system includes being arranged in vacuum chamber, for receiving laser hair
The streak camera of the ultraviolet signal gone out, the input terminal of streak camera are provided with the differentiation template gold for receiving ultraviolet signal
Cathode；It is connect with streak camera, the high voltage power supply for providing drive signal for streak camera, high voltage power supply passes through scanning circuit
Connect streak camera；The output end of streak camera is provided with the CCD for the optical signal that the fluorescent screen for receiving streak camera exports
Video camera, CCD camera connects computer, and converts optical signals to digital signal and be transmitted to computer；It is sharp for receiving
Light device send out control optical signal photoelectric sensor (PIN), photoelectric sensor by delayer be separately connected scanning circuit and
Booster, booster are arranged between streak camera and CCD camera.Preferably, control optical signal is the light that wavelength is 800nm
Signal.
Alternatively, it when the ultraviolet light of laser emitting cannot be emitted directly toward differentiation template au cathode, needs to adjust light
Road, then provided with light path regulating device, ultraviolet signal passes through light path regulating device and injects differentiation template Jin Yin the utility model
Pole, light path regulating device include total reflective mirror M1, half-reflecting half mirror M2, half-reflecting half mirror M3, total reflective mirror M4, and total reflective mirror M1 will be received
To ultraviolet light reflex to half-reflecting half mirror M2；Transmitted light directive is broken up template au cathode, half-reflection and half-transmission by half-reflecting half mirror M2
Mirror M2 is by the vertical directive half-reflecting half mirror M3 of reflected light；Half-reflecting half mirror M3 is by reflected light directive half-reflecting half mirror M2, partly instead partly
Lens M3 is by the vertical directive total reflective mirror M4 of transmitted light.
Differentiation template au cathode includes stainless steel base, the fused quartz layer that is arranged on stainless steel base and setting exist
Interval aluminium film on fused quartz layer, it is golden film to be spaced in aluminium film.Break up the manufacturing process and the above-mentioned X of parameter reference of template au cathode
Break up template au cathode in ray streak camera static test system, details are not described herein.
Figure 11 is a kind of flow chart of X-ray streak camera dynamic testing method of the utility model.
Specifically, the X-ray streak camera dynamic testing method is applied to above-mentioned X-ray streak camera dynamic test system
System, includes the following steps：
T1, differentiation template au cathode receive the ultraviolet light of laser transmitting under the dynamic test pattern of streak camera, high
Voltage source drives streak camera by scanning circuit output drive signal, wherein the control light that scanning circuit is emitted by laser
Signal controls.Preferably, laser selects ti∶sapphire laser femto-second laser.Preferably, it is the ultraviolet of 266nm that ultraviolet light, which is wavelength,
Light.
T2, CCD camera receive the optical signal of the fluorescent screen output of streak camera, convert optical signals to digital signal simultaneously
It is transmitted to computer, obtains striped digital picture.
T3, laser facula is repeatedly moved, makes ultraviolet light in the different zones of differentiation template au cathode, test and record
Striped digital picture under different distance；
T4, the fringe intensity distribution for obtaining striped digital picture, laser facula is relative to close in tens regions um of au cathode
It is seemingly uniformly distributed, intensity data has enough accuracy, also parallel light tube can be added to make light intensity uniform before camera input.From symmetrical
The dynamic fringe picture that different resolution is sampled at axis different distance, obtains the contrast of dynamic light and shade striped；Further, this practicality
Novel X-ray streak camera dynamic testing method, the contrast that dynamic light and shade striped is obtained in step T4 include：According to formula
(4) contrast of dynamic light and shade striped is obtained；
Wherein, CTF (f) is the contrast of light and shade striped, and f is the spatial frequency of candy strip, and Imax is dynamic fringe picture
The intensity of middle bright fringe, IminFor the intensity of dark fringe in dynamic fringe picture.
T5, the modulation degrees of data at multiple off-axis distances is obtained according to the relationship of modulation degree and contrast.Further, step
The relationship of modulation degree and contrast is in T5：
MTF (f)=π/4CTF (f) (5)
Wherein, MTF (f) is modulation degree.
T6, corresponding electronics disc of confusion radius at the distance is obtained according to the modulation degrees of data at multiple off-axis distances.Into
One step, step T6 include：The corresponding electricity of the distance is obtained by formula (6) according to the modulation degrees of data at multiple off-axis distances
Sub- disc of confusion radius ρe；
MTF (f)=exp [- (π ρef)2] (6)
Wherein, exp is the exponential function that natural constant e is bottom, and π is pi.
T7, dynamic space modulation transfer function DMTF at the camera off-axis distance is obtained according to electronics disc of confusion radius
(dynamic modulation transfer function).Further, step T7 includes：According to electronics disc of confusion radius
ρe, then the dynamic space modulation transfer function of the camera off-axis distance obtained by formula (6).
T8, when dynamic space modulation transfer function drops to the second preset value, obtain at the streak camera image space
Dynamic limit spatial resolution.Preferably, the first preset value is 0.393%, i.e. at CTF=5%, obtain streak camera this at
Dynamic limit spatial resolution at image position.
T9, by the multiple off-axis distances of streak camera dynamic limit spatial resolution be fitted camera imaging off-axis distance and
Dynamic limit spatial resolution conic section relationship.
T10, streak camera is obtained by dynamic limit spatial resolution conic section relationship, camera dynamic imaging regional extent
The dynamic limit spatial resolution distribution of full imaging region under dynamic operation mode.
Now above-mentioned X-ray streak camera dynamic testing method is verified by experiment, experimental result such as table 2 and figure
12 to shown in Figure 15.
Table 2
The utility model is based on electron-optical MTF theories and graduation template photocathode makes, and X-ray is accumulated in large working area
On streak camera, under static and two operating modes of dynamic, streak camera spatial resolution is measured, streak camera is calculated
SMTF, DMTF and limit space resolution ratio.This method can be fitted to obtain streak camera whole imaging area by measured data of experiment
The limit space resolution distribution in domain, to realize that laser ICF quantitative, Quasi-quantitative measurement and " precise treatment " diagnose target and have weight
Want meaning.
Above example is only the technical concepts and features for illustrating the utility model, and its object is to allow be familiar with technique
Personage can understand the content of the utility model and implement accordingly, the scope of protection of the utility model can not be limited.It is all with
The equivalent changes and modifications that the utility model claims range is done, should all belong to the utility model claims covers model
It encloses.
Claims (4)
1. a kind of X-ray streak camera static test system, which is characterized in that including being arranged in vacuum chamber, for receiving light
The input terminal of the streak camera for the ultraviolet signal that source is sent out, the streak camera is provided with for receiving the ultraviolet signal
Differentiation template au cathode；
It is connect with the streak camera, the high voltage power supply for providing drive signal for the streak camera, the high voltage power supply
The streak camera is connected by divider；
The CCD that the output end of the streak camera is provided with the optical signal that the fluorescent screen for receiving the streak camera exports takes the photograph
Camera, the CCD camera connects computer, and converts optical signals to digital signal and be transmitted to the computer.
2. X-ray streak camera static test system according to claim 1, which is characterized in that the light source is ultraviolet
Dish type lamp；
The differentiation template au cathode includes stainless steel base, the fused quartz layer, the Yi Jishe that are arranged on the stainless steel base
The interval aluminium film on the fused quartz layer is set, is golden film in the interval aluminium film.
3. a kind of X-ray streak camera dynamic test system, which is characterized in that including be arranged in vacuum chamber, it is sharp for receiving
The input terminal of the streak camera for the ultraviolet signal that light device is sent out, the streak camera is provided with for receiving the ultraviolet light letter
Number differentiation template au cathode；
It is connect with the streak camera, the high voltage power supply for providing drive signal for the streak camera, the high voltage power supply
The streak camera is connected by scanning circuit；
The CCD that the output end of the streak camera is provided with the optical signal that the fluorescent screen for receiving the streak camera exports takes the photograph
Camera, the CCD camera connects computer, and converts optical signals to digital signal and be transmitted to the computer；
Photoelectric sensor for receiving the control optical signal that the laser is sent out, the photoelectric sensor pass through delayer point
Not Lian Jie scanning circuit and booster, the booster is arranged between the streak camera and CCD camera.
4. X-ray streak camera dynamic test system according to claim 3, which is characterized in that the ultraviolet signal
The differentiation template au cathode is injected by light path regulating device, the light path regulating device includes total reflective mirror M1, half-reflection and half-transmission
Mirror M2, half-reflecting half mirror M3, total reflective mirror M4；
The differentiation template au cathode includes stainless steel base, the fused quartz layer, the Yi Jishe that are arranged on the stainless steel base
The interval aluminium film on the fused quartz layer is set, is golden film in the interval aluminium film.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108012144A (en) * | 2017-12-13 | 2018-05-08 | 深圳大学 | A kind of X-ray streak camera imaging performance tests system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108012144A (en) * | 2017-12-13 | 2018-05-08 | 深圳大学 | A kind of X-ray streak camera imaging performance tests system and method |
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