CN105842727A - Transmission type flat response soft X-ray radiation flux measuring device - Google Patents
Transmission type flat response soft X-ray radiation flux measuring device Download PDFInfo
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- CN105842727A CN105842727A CN201610385141.9A CN201610385141A CN105842727A CN 105842727 A CN105842727 A CN 105842727A CN 201610385141 A CN201610385141 A CN 201610385141A CN 105842727 A CN105842727 A CN 105842727A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/29—Measurement performed on radiation beams, e.g. position or section of the beam; Measurement of spatial distribution of radiation
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Abstract
The invention provides a transmission type flat response soft X-ray radiation flux measuring device. A cone is fixedly arranged at the periphery of the back end of an anode; an output head is arranged at the periphery of the cone; the output head is connected with a shell; an inner cylinder is fixedly arranged at the periphery of a clamping ring; a thin film cathode is pressed in the inner cylinder through the clamping ring; an outer cylinder is arranged at the periphery of the inner cylinder; an insulating layer is arranged between the inner cylinder and the outer cylinder; a locking ring is arranged at the periphery of the outer cylinder; an insulating ring is pressed in the conical outer cylinder through the locking ring; the outer cylinder is connected with the output head through a connecting ring; the shell is fixedly connected with a high-pressure pipe; a ceramic valve, a connecting pin, an insulating cylinder and a high-pressure head are sequentially connected with one another on the axis of the high-pressure pipe; and a current limiting resistor is connected with the inner cylinder and the ceramic valve. According to the transmission type flat response soft X-ray radiation flux measuring device of the invention, the thin film cathode can provide conditions for optoelectron subsequent processing; and a flat response filter and an XRD detector are integrated, so that the structure of the device is more compact. With the device adopted, X-ray radiation flux measurement in the inertial confinement fusion field can be realized.
Description
Technical field
The invention belongs to soft x-ray radiation flow measurement field, be specifically related to a kind of transmission-type flat response soft x-ray radiation stream
Measurement apparatus.
Background technology
In laser-produced fusion is studied, radiant flux is present among whole physical process, and the X-ray including hohlraum physics radiates
Stream, the pellet self-luminous etc. of implosion physics.In order to study the intensity in Hohlraum radiation source, radiation temperature, and implosion irradiation is symmetrical
Property with thermonuclear burn process etc., the measurement of radiant flux is indispensable.
The capital equipment measured radiant flux at present has flat response X-ray diode (FXRD), X-ray diode (XRD) array
The equipment such as the soft-X-ray laser (SXS) of composition.Flat response XRD is that one utilizes multiple filter and XRD to realize X-ray flat response
Detector.XRD cathode sensitivity is on a declining curve with X-ray energy, and filter disc transmitance is then in rising trend with x-ray spectroscopy.
Utilize both complementary relationships, the multiple filter of different area proportioning that X-ray is carried out weight proportioning, respond in conjunction with XRD,
Realize preferable flat response characteristic.Laser Fusion Research Center, Chinese Academy of Engineering Physics utilizes au cathode XRD and gold combination
Filter disc achieves the flat response of 0.1 keV-5 keV scope, comprises gold M band.Multiple filter is 400 nm that shape is identical
Constituting with the golden film of 50 two kinds of thickness of nm, its area proportioning is 1:6.5.For realizing this area proportioning, photoetching technique is utilized to exist
Array of orifices is etched on 400 nm thick gold membranes.And soft-X-ray laser is to apply filter method light splitting to carry out spectral measurement.Filter method
Light splitting is the transmitance sudden change using some element at respective L or K ABSORPTION EDGE energy, a continuous print X-ray spectrum " is cut
Cut " become several narrow spectral coverages.Optical filter configuration XRD detector, constitutes soft X-ray detection road system.In order to suppress filter disc-XRD
Detection road high energy afterbody, is also configured with X-ray plane mirror in mental retardation road.Finally, array configures the XRD of high voltage power supply, logical
Cross microwave cable and transmit signals to digital oscilloscope, data acquisition.
The exploring block of these devices is vacuum X-ray diode.Currently used X-ray diode is windowless slab construction
Photodetector, there is response time fast, good in anti-interference performance, it is simple to the advantages such as Sensitivity Calibration.During detector work, arteries and veins
Washing subgroup off and pass meshed anode, beat on negative electrode, produce photoelectricity subgroup, photoelectron is under negative and positive interpolar highfield accelerates, fast
Speed returns anode, thus induces pulse current output electric pulse in output circuit.This XRD is also referred to as reflective two poles
Managing, its time is distinguished as tens picosecond magnitudes.
Although these devices can realize high-precision quantitative measurement in X-radiation flow measurement, research needs can be met,
But have the disadvantage that (1) cannot carry out subsequent treatment to the electronics that detector produces.For reflective detector, X-ray
Through the anode of wire-grid structure, expose to negative electrode, produce photoelectron.Under the effect of electric field, photoelectron moves to aperture plate, produces
Output electric current.Due to structure and work characteristics, the photoelectron that detector produces cannot be carried out subsequent treatment.(2) apparatus structure is not
Enough compact.Device composed component is a lot, and demarcation link is many, installs complexity, and various uncertain factors cause measurement result the most true
Surely spend bigger than normal.
Summary of the invention
The invention aims to cannot be to spy present in soft x-ray radiation stream quantitative measurement in solution prior art
The electronics surveying device generation carries out subsequent treatment, baroque problem, it is provided that a kind of transmission-type flat response soft x-ray radiation stream is surveyed
Amount device.The transmission-type flat response soft x-ray radiation flow measuring apparatus of the present invention can provide condition, knot for photoelectron subsequent treatment
Structure is more compact, can realize inertial confinement fusion field, hohlraum physics, radiation transport, radiation ablation, radiopacity and interior
Quick-fried dynamic (dynamical) soft x-ray radiation flow measurement.
Technical scheme is as follows:
The transmission-type flat response soft x-ray radiation flow measuring apparatus of the present invention, is characterized in, outside described measurement apparatus includes
Shell, delivery, cone, anode, lamel cathode, snap ring, inner core, insulating barrier, dead ring, retaining ring, urceolus, connection ring, current limliting
Resistance, high-voltage tube, pottery can valve, connect pin, insulating cylinder, connecting cylinder, high-head, described shell is ring-type, and anode is by three sections not
Constitute with the metal cylinder of diameter.Its annexation is, be provided with on central axis in the enclosure delivery, cone, anode,
Urceolus, insulating barrier, lamel cathode, snap ring, inner core, dead ring, anode rear perpheral is fixedly installed cone, and the periphery of cone is solid
Surely being provided with delivery, delivery is connected with shell by screw.The periphery of snap ring is fixedly installed inner core, and lamel cathode is passed through
Snap ring is pressed in inner core.The periphery of inner core is provided with urceolus, is provided with insulating barrier between inner core and urceolus, and the periphery of urceolus sets
Being equipped with retaining ring, dead ring is pressed in cone urceolus by retaining ring.Urceolus is connected with delivery by connecting ring.Described
A gap is had between lamel cathode and anode.Shell is fixedly connected with high-voltage tube, and high-voltage tube axis is disposed with pottery can
Valve, connection pin, insulating cylinder, high-head.Connect pin to be wrapped in insulating cylinder.Pottery lower end and the high-voltage tube of valve can be fixed and be connected,
Upper end is connected with high-head by connecting pin.High-head is connected with high-voltage tube by connecting cylinder.One end of current-limiting resistance and inner core
Connecting, the other end and pottery the core needle in valve can be fixed and be connected.
Gap between described lamel cathode and anode is 1-3mm.
Described lamel cathode is made up of the silicon ring of bottom, the metal film in middle level, the band pinhole array metal film on upper strata.
Described delivery joint is the one in SMA type, N-type, BNC type.
Described anode, the impedance of cone to delivery are 50 Ω.
The material of described anode uses the one in copper, aluminum, gold.
The invention has the beneficial effects as follows, the lamel cathode in the present invention, its photoelectron produced is not done with incident X-rays light path
Relate to, provide condition for photoelectronic subsequent treatment, inertial confinement fusion field, hohlraum physics, radiation transport, radiation can be realized
The soft x-ray radiation flow measurement of ablation, radiopacity and implosion dynamics.The present invention is by the flat response filter disc in application
Integrated with XRD detector, more compact structure, decrease filter disc and install and staking-out work so that radiant flux is measured more convenient.
Below by drawings and Examples, technical scheme is described in further detail.
Accompanying drawing explanation
Fig. 1 is the structural representation of the transmission-type flat response soft x-ray radiation flow measuring apparatus of the present invention.
Fig. 2 is the structural representation of the transmissive cathode in the present invention.
In figure, 1. shell 2. delivery 3. cone 4. anode 5. lamel cathode 6. snap ring 7. inner core 8.
Insulating barrier 9. dead ring 10. retaining ring 11. urceolus 12. connects ring 13. current-limiting resistance 14. high-voltage tube 15.
Pottery can connect pin 17. insulating cylinder 18. connecting cylinder 19. high-head 20. silicon ring 21. metal film 22. by valve 16.
Band pinhole array metal film.
Detailed description of the invention
Embodiment 1
Fig. 1 is the structural representation of the transmission-type flat response soft x-ray radiation flow measuring apparatus of the present invention, and Fig. 2 is in the present invention
The structural representation of transmissive cathode.At Fig. 1, in 2, the transmission-type flat response soft x-ray radiation flow measuring apparatus of the present invention,
Including shell 1, delivery 2, cone 3, anode 4, lamel cathode 5, snap ring 6, inner core 7, insulating barrier 8, dead ring 9, retaining ring 10,
Urceolus 11, connection ring 12, current-limiting resistance 13, high-voltage tube 14, pottery can valve 15, connection pin 16, insulating cylinder 17, connecting cylinder 18, height
Pressure head 19, described shell 1 is ring-type, and anode 4 is made up of the metal cylinder of three sections of different-diameters.Its annexation is, outside
Delivery 2, cone 3, anode 4, urceolus 11, insulating barrier 8, lamel cathode 5, snap ring 6, inner core it is provided with on central axis in shell 1
7, dead ring 9, anode 4 rear perpheral is fixedly installed cone 3, and the periphery of cone 3 is fixedly installed delivery 2, and delivery 2 leads to
Cross screw to be connected with shell 1.The periphery of snap ring 6 is fixedly installed inner core 7, and lamel cathode 5 is pressed in inner core 7 by snap ring 6.
The periphery of inner core 7 is provided with urceolus 11, is provided with insulating barrier 8 between inner core 7 and urceolus 11, and the periphery of urceolus 11 is provided with locking
Ring 10, dead ring 9 is pressed in cone urceolus 11 by retaining ring 10.Urceolus 11 is connected with delivery 2 by connecting ring 12.Institute
A gap is had between the lamel cathode 5 stated and anode 4.Shell 1 is fixedly connected with high-voltage tube 14, and high-voltage tube 14 sets on axis successively
Being equipped with pottery can valve 15, connection pin 16, insulating cylinder 17, high-head 19.Connect pin 16 to be wrapped in insulating cylinder 17.Pottery can valve 15
Lower end and high-voltage tube 14 fixing is connected, upper end is connected with high-head 19 by connection pin 16.High-head 19 is by connecting cylinder 18
It is connected with high-voltage tube 14.One end of current-limiting resistance 13 is connected with inner core 7, the other end and pottery can core needle in valve 15 fixing even
Connect.
Described lamel cathode 5 is by the silicon ring 20 of bottom, the metal film 21 in middle level, the band pinhole array metal film 22 on upper strata
Constitute.
Described anode 4, the impedance of cone 3 to delivery 2 are 50 Ω.
In the present embodiment, the gap between described lamel cathode 5 and anode 4 is 2 mm, and delivery 2 joint is SMA type, sun
The material of pole 4 uses copper.
Shell 1 material is for using rustless steel, and cone 3 material uses aluminum, and snap ring 6 material is aluminum, and inner core 7 material uses stainless
Steel, insulating barrier 8 material uses politef, and dead ring 9 material uses politef, and retaining ring 10 material uses copper, outward
Cylinder 11 material uses copper, connects ring 12 material and uses copper, and current-limiting resistance 13 resistance value is 10M Ω, and high-voltage tube 14 material uses not
Rust steel, connects pin 16 material and uses silver, and insulating cylinder 17 material uses politef, and connecting cylinder 18 material uses copper.
The described circle that lamel cathode 5 is a diameter of 10 mm.The middle layer metal film 21 of lamel cathode 5 is 50 nm thickness
Golden film, the golden film that band pinhole array metal film 22 is thickness 400nm on upper strata.It is etched with pin on band pinhole array metal film 22
Hole array, pinhole array is made up of the aperture of 100x100 a diameter of 35 μm.
The transmission-type flat response soft x-ray radiation flow measuring apparatus workflow of the present invention is as follows:
Delivery 2 in the present invention is connected with oscillograph by cable.High-head 19 is connected with DC source by cable, power supply
-2000V bias is provided, between lamel cathode 5 and anode 4, applies electric field, constitute for inner core 7, insulating barrier 8, urceolus 11 simultaneously
Storage capacitor charging, it is ensured that twinkling signal output have enough quantities of electric charge.When x-ray bombardment to lamel cathode 5, electronics produces also
Fly under electric field action to anode 4, by cone 3, delivery 2, cable transmission to oscillograph.According to formula,Wherein:For radiant flux,For signal attenuation multiple,For oscillograph impedance,For this
Bright detection device receptance function,For solid angle, it is possible to be calculated radiant flux and change over result.
Embodiment 2
The present embodiment is identical with the structure of embodiment 1, is a difference in that, the gap between lamel cathode 5 and anode 4 is 1 mm, defeated
2 joints of lifting one's head are N-type, and the material of anode 4 uses gold.
Embodiment 3
The present embodiment is identical with the structure of embodiment 1, is a difference in that, the gap between lamel cathode 5 and anode 4 is 3 mm, defeated
2 joints of lifting one's head are BNC type, and the material of anode 4 uses aluminum.
Finally illustrate: the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, to the greatest extent
The present invention has been described in detail by pipe with reference to previous embodiment, and for those skilled in the art, it still can be right
Technical scheme described in previous embodiment is modified, or to wherein Partial Feature equivalent, any amendment made,
Equivalent, improvement etc., should be included within the scope of the present invention.
Claims (6)
1. a transmission-type flat response soft x-ray radiation flow measuring apparatus, it is characterised in that described measurement apparatus includes shell
(1), delivery (2), cone (3), anode (4), lamel cathode (5), snap ring (6), inner core (7), insulating barrier (8), dead ring
(9), retaining ring (10), urceolus (11), connect ring (12), current-limiting resistance (13), high-voltage tube (14), pottery can valve (15), connect
Pin (16), insulating cylinder (17), connecting cylinder (18), high-head (19), described shell (1) is ring-type, and anode (4) is straight by three sections of differences
The metal cylinder in footpath is constituted；Its annexation is, be provided with on central axis in shell (1) delivery (2), cone (3),
Anode (4), urceolus (11), insulating barrier (8), lamel cathode (5), snap ring (6), inner core (7), dead ring (9), anode (4) rear end
Periphery is fixedly installed cone (3), and the periphery of cone (3) is fixedly installed delivery (2), and delivery (2) passes through screw with outer
Shell (1) connects；The periphery of snap ring (6) is fixedly installed inner core (7), and lamel cathode (5) is pressed on inner core (7) by snap ring (6)
In；The periphery of inner core (7) is provided with urceolus (11), is provided with insulating barrier (8), urceolus (11) between inner core (7) and urceolus (11)
Periphery be provided with retaining ring (10), in dead ring (9) is pressed on cone urceolus (11) by retaining ring (10)；Urceolus (11) leads to
Cross connection ring (12) to be connected with delivery (2)；A gap is had between described lamel cathode (5) and anode (4)；Shell (1) is fixed
Connecting and have high-voltage tube (14), high-voltage tube (14) axis is disposed with pottery can valve (15), connection pin (16), insulating cylinder
(17), high-head (19)；Connect pin (16) to be wrapped in insulating cylinder (17)；Pottery can lower end and the high-voltage tube (14) of valve (15) solid
Fixed connection, upper end is connected with high-head (19) by connecting pin (16)；High-head (19) passes through connecting cylinder (18) and high-voltage tube
(14) connect；One end of current-limiting resistance (13) is connected with inner core (7), the other end and pottery can core needle in valve (15) fixing even
Connect.
Transmission-type flat response soft x-ray radiation flow measuring apparatus the most according to claim 1, it is characterised in that described
Gap between lamel cathode (5) and anode (4) is 1-3 mm.
Transmission-type flat response soft x-ray radiation flow measuring apparatus the most according to claim 1, it is characterised in that described
Lamel cathode (5) is made up of the silicon ring (20) of bottom, the metal film (21) in middle level, band pinhole array metal film (22) on upper strata.
Transmission-type flat response soft x-ray radiation flow measuring apparatus the most according to claim 1, it is characterised in that described
Delivery (2) joint is the one in SMA type, N-type, BNC type.
Transmission-type flat response soft x-ray radiation flow measuring apparatus the most according to claim 1, it is characterised in that described
Anode (4), cone (3) are 50 Ω to the impedance of delivery (2).
Transmission-type flat response soft x-ray radiation flow measuring apparatus the most according to claim 1, it is characterised in that described
The material of anode (4) uses the one in copper, aluminum, gold.
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| CN105842727B CN105842727B (en) | 2018-07-03 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106501840A (en) * | 2016-11-13 | 2017-03-15 | 中国科学院近代物理研究所 | One kind of proton heavy ion beam current longitudinal direction beam group shape measure detector |
| CN107219546A (en) * | 2017-05-25 | 2017-09-29 | 中国工程物理研究院激光聚变研究中心 | A kind of flat response multiple filter and preparation method thereof |
| CN107833820A (en) * | 2017-11-30 | 2018-03-23 | 中国工程物理研究院激光聚变研究中心 | A kind of new single channel x-ray diode detection system |
| CN108089223A (en) * | 2018-02-12 | 2018-05-29 | 中国工程物理研究院激光聚变研究中心 | A kind of neutron detection device and system |
| CN108132261A (en) * | 2018-02-05 | 2018-06-08 | 中国工程物理研究院激光聚变研究中心 | Flat response filter disc erecting device and flat response X-ray detector |
| CN108345027A (en) * | 2018-03-16 | 2018-07-31 | 中国工程物理研究院激光聚变研究中心 | A kind of energy disperse spectroscopy |
| CN111190216A (en) * | 2020-01-23 | 2020-05-22 | 中国工程物理研究院激光聚变研究中心 | Radiation flow detector array |
| CN111190217A (en) * | 2020-01-23 | 2020-05-22 | 中国工程物理研究院激光聚变研究中心 | Transmission band-pass type radiation flow detector |
| CN111221029A (en) * | 2020-03-18 | 2020-06-02 | 中国工程物理研究院激光聚变研究中心 | X-ray time evolution process measuring device |
| CN113433579A (en) * | 2021-05-18 | 2021-09-24 | 中国工程物理研究院激光聚变研究中心 | Large-sensitive-surface X-ray spectrum flat response diode detector |
| CN113655512A (en) * | 2021-06-29 | 2021-11-16 | 中国工程物理研究院激光聚变研究中心 | Method for measuring symmetry of X-ray radiation in black cavity M-band |
| CN114446742A (en) * | 2021-12-28 | 2022-05-06 | 苏州闻道电子科技有限公司 | Miniaturized X-ray diode |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106501840A (en) * | 2016-11-13 | 2017-03-15 | 中国科学院近代物理研究所 | One kind of proton heavy ion beam current longitudinal direction beam group shape measure detector |
| CN107219546A (en) * | 2017-05-25 | 2017-09-29 | 中国工程物理研究院激光聚变研究中心 | A kind of flat response multiple filter and preparation method thereof |
| CN107833820A (en) * | 2017-11-30 | 2018-03-23 | 中国工程物理研究院激光聚变研究中心 | A kind of new single channel x-ray diode detection system |
| CN108132261A (en) * | 2018-02-05 | 2018-06-08 | 中国工程物理研究院激光聚变研究中心 | Flat response filter disc erecting device and flat response X-ray detector |
| CN108089223A (en) * | 2018-02-12 | 2018-05-29 | 中国工程物理研究院激光聚变研究中心 | A kind of neutron detection device and system |
| CN108089223B (en) * | 2018-02-12 | 2024-05-07 | 中国工程物理研究院激光聚变研究中心 | Neutron detection device and system |
| CN108345027B (en) * | 2018-03-16 | 2023-10-24 | 中国工程物理研究院激光聚变研究中心 | Energy spectrometer |
| CN108345027A (en) * | 2018-03-16 | 2018-07-31 | 中国工程物理研究院激光聚变研究中心 | A kind of energy disperse spectroscopy |
| CN111190216A (en) * | 2020-01-23 | 2020-05-22 | 中国工程物理研究院激光聚变研究中心 | Radiation flow detector array |
| CN111190217A (en) * | 2020-01-23 | 2020-05-22 | 中国工程物理研究院激光聚变研究中心 | Transmission band-pass type radiation flow detector |
| CN111221029A (en) * | 2020-03-18 | 2020-06-02 | 中国工程物理研究院激光聚变研究中心 | X-ray time evolution process measuring device |
| CN113433579B (en) * | 2021-05-18 | 2023-01-20 | 中国工程物理研究院激光聚变研究中心 | Large-sensitive-surface X-ray spectrum flat response diode detector |
| CN113433579A (en) * | 2021-05-18 | 2021-09-24 | 中国工程物理研究院激光聚变研究中心 | Large-sensitive-surface X-ray spectrum flat response diode detector |
| CN113655512A (en) * | 2021-06-29 | 2021-11-16 | 中国工程物理研究院激光聚变研究中心 | Method for measuring symmetry of X-ray radiation in black cavity M-band |
| CN113655512B (en) * | 2021-06-29 | 2024-05-07 | 中国工程物理研究院激光聚变研究中心 | Method for measuring symmetry of X-ray radiation of black cavity M band |
| CN114446742A (en) * | 2021-12-28 | 2022-05-06 | 苏州闻道电子科技有限公司 | Miniaturized X-ray diode |
| CN114446742B (en) * | 2021-12-28 | 2024-04-26 | 苏州闻道电子科技有限公司 | Miniaturized X-ray diode |
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