CN205720694U - A kind of mesh electrode diamond X-ray measuring instrument - Google Patents
A kind of mesh electrode diamond X-ray measuring instrument Download PDFInfo
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- CN205720694U CN205720694U CN201620528558.1U CN201620528558U CN205720694U CN 205720694 U CN205720694 U CN 205720694U CN 201620528558 U CN201620528558 U CN 201620528558U CN 205720694 U CN205720694 U CN 205720694U
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- diamond
- mesh electrode
- pad
- shell
- ring
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Abstract
This utility model provides a kind of mesh electrode diamond X-ray measuring instrument, the end face of the described diamond in measurement apparatus is coated with mesh electrode and circular electrode respectively, connect ring and be threadably secured the front end being socketed in shell, being disposed with pad, diamond, dead ring, insulating barrier in the enclosure on axis, pad, diamond, dead ring compress in the enclosure by connecting ring.Pad compresses with mesh electrode and is connected.Insulating barrier is fixing with shell to be connected.Being enclosed with core needle in insulating barrier, core needle is connected through dead ring with circular electrode.Casing ends is provided with the joint of external cable.This utility model reduces the decay to X-ray, it is ensured that low energy X ray can be with direct irradiation to diamond, it is achieved that the X-radiation in inertial confinement fusion field is measured.Concentric structure arranges and is more conducive to realize the impedance matching of detector, reduces measurement distorted signals.The mesh electrode of larger area is more conducive to Sensitivity Calibration and measures application.
Description
Technical field
This utility model belongs to X-radiation fields of measurement, is specifically related to a kind of mesh electrode diamond X-ray measurement dress
Put.
Background technology
Detection to radiation at present all relies on greatly silicon photo diode or PIN diode.The deficiency of silicon photo diode is right
There is response in visible ray, and be susceptible to the damage of neutron irradiation.Another kind of commonly used soft x-ray detector is vacuum X
Optical diode, but X-ray diode-sensitivity is the lowest, and change with the change of photon energy.It is thus desirable to seek one
Visible ray is not responding to, the x-ray detector of flat response in surveying spectral limit.Inertial confinement fusion igniting experiments requires that detector rings
Should be fast, highly sensitive, there is certain Antiradiation injury ability.Either natural single crystal or the diamond of polycrystalline may be used to
Various radiation detections, including X-ray, gamma-rays, high energy charged particles and neutron detection.The detector prepared with diamond can
Work under the severe rugged environments such as high fluence rate, high irradiation intensity and high temperature.Compared with silicon photo diode, diamond photoconduction is visited
The advantage surveying device includes: bigger carrier mobility and less dielectric constant make its response speed very fast；Leak electricity under room temperature
Flow relatively low；Relatively big to the resistance of atom transfer, its transfer threshold value is about 43 eV, and silicon is 20 eV；The broad stopband of 5.5eV itself
Visible ray can be filtered, there is good antibody Monoclonal ability simultaneously.This material is sensitive with the response of frequency tripled laser to a frequency multiplication
Spend minimum.Diamond can be as the preferable succedaneum of silicon Yu X-ray diode Detection Techniques.
On Sandia National Laboratory Saturn device, diamond photoconductive detector has been applied to z-pich experiment
In the diagnosis of soft X-ray.Los Alamos National Laboratory have developed a set of soft X-ray of transmission grating based on polycrystalline CVD diamond
Spectrometer, measures soft X-ray to measure radiation temperature on NIF device.The base that studies in China is studied at natural diamond detector
Gradually spread out on plinth, the metal of the diamond detector that current Laser Fusion Research Center, Chinese Academy of Engineering Physics develops-
Diamond-metal structure, utilizes double micro-strip output signal and is biased.
Although these devices can realize the measurement of X-ray in X-radiation is measured, research needs can be met, but deposit
In following deficiency: (1) coaxial configuration detector electrodes affects low energy X ray detection.Metal-diamond-metal coaxial configuration
Detector, it is ensured that coaxial impedance mates, but X-ray exposes on diamond through metal electrode, its mental retardation part will
Its measurement result can be affected by absorption in various degree.(2) microstrip structure detector cannot ensure coaxially to export.Utilize micro-strip
Connect the detector of diamond, it is possible to use accept X-ray without metal electrode face, but coaxial export structure, shadow cannot be ensured
Ring detector impedance matching.(3) microstrip structure detector demarcates difficulty.The detector sensitive face that micro-strip connects is the least, to sensitive
The aiming that scale timing is waited brings the biggest difficulty with measurement.
Summary of the invention
The purpose of this utility model be in order to solve in prior art X-radiation measure present in affect mental retardation X and penetrate
The problem that line is measured, cannot be ensured coaxially to export, demarcate difficulty, it is provided that a kind of mesh electrode diamond X-ray measuring instrument.This
Utility model does not affect low energy X ray and measures, can ensure coaxially to export, reduce demarcation difficulty, it is possible to realize inertial confinement fusion
The X-radiation of the hohlraum physics in field, radiation transport, radiation ablation, radiopacity and implosion dynamics is measured.
The technical solution of the utility model is as follows:
A kind of mesh electrode diamond X-ray measuring instrument of the present utility model, is characterized in, described measurement apparatus bag
Including connection ring, pad, diamond, dead ring, shell, insulating barrier, core needle, described pad is annular metal sheet, and diamond is circle
Cylindricality.Its annexation is, an end face of described diamond is coated with mesh electrode, and other end is coated with circular electrode.Institute
State connect ring be threadably secured the front end being socketed in shell, be disposed with on axis in the enclosure pad, diamond,
Dead ring, insulating barrier, pad, diamond, dead ring compress in the enclosure by connecting ring.Described pad and mesh electrode pressure
It is close to connect.Described insulating barrier is fixing with shell to be connected.Being enclosed with core needle in described insulating barrier, core needle passes dead ring and dish
Shape electrode connects.Described casing ends is provided with the joint of external cable.
Described connection ring, pad, diamond, dead ring, insulating barrier, core needle are that concentric is arranged.
Described mesh electrode is made up of with outer shroud central network.
Described casing ends joint is the one in SMA type, N-type, BNC type.
Described core needle is 50 Ω with the impedance of circular electrode junction point to casing ends.
The material of described pad uses the one in rustless steel, copper, aluminum.
The beneficial effects of the utility model are, be provided with mesh electrode, reduce and decline X-ray in this utility model
Subtract, it is ensured that low energy X ray can be with direct irradiation to diamond, it is achieved that the hohlraum physics in inertial confinement fusion field, radiation
Transport, radiation ablation, the X-radiation of radiopacity and implosion dynamics are measured.Concentric in this utility model
Structure arranges and is more conducive to realize the impedance matching of detector, reduces measurement distorted signals.This utility model is provided with bigger
The mesh electrode of area, it is easier to aim at, beneficially Sensitivity Calibration are applied with measuring.
Accompanying drawing explanation
Fig. 1 is the structural representation of mesh electrode diamond X-ray measuring instrument of the present utility model；
Fig. 2 a is the diamond top view in this utility model；
Fig. 2 b is the diamond bottom view in this utility model；
In figure, 1. connect ring 2. pad 3. diamond 4. dead ring 5. shell 6. insulating barrier 7. core needle 8. netted
Electrode 9. circular electrode.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Detailed description of the invention
Embodiment 1
Fig. 1 is the structural representation of mesh electrode diamond X-ray measuring instrument of the present utility model, and Fig. 2 a is this practicality
Diamond top view in novel, Fig. 2 b is the diamond bottom view in this utility model.In Fig. 1, Fig. 2 a, Fig. 2 b, this reality
With novel mesh electrode diamond X-ray measuring instrument, including connect ring 1, pad 2, diamond 3, dead ring 4, shell 5,
Insulating barrier 6, core needle 7, described pad 2 is annular metal sheet, and diamond 3 is cylindrical.Its annexation is, described diamond
One end face of 3 is coated with mesh electrode 8, and other end is coated with circular electrode 9.Described connection ring 1 is threadably secured socket
In the front end of shell 5, in shell 5, on axis, it is disposed with pad 2, diamond 3, dead ring 4, insulating barrier 6, pad 2,
Diamond 3, dead ring 4 are pressed in shell 5 by connecting ring 1；Described pad 2 compresses with mesh electrode 8 and is connected；Described
Insulating barrier 6 is fixing with shell 5 to be connected.Being enclosed with core needle 7 in described insulating barrier 6, core needle 7 is through dead ring 4 and circular electrode 9
Connect.Described shell 5 end is provided with the joint of external cable.
Described connection ring 1, pad 2, diamond 3, dead ring 4, insulating barrier 6, core needle 7 are that concentric is arranged.
Described mesh electrode 8 is made up of with outer shroud central network.
In the present embodiment, the material of pad 2 uses copper, and diamond 3 is the cvd diamond of diameter 4mm thickness 1 mm, plate-like
Electrode 9 is the gold of diameter 3.5 mm thickness 1 μm, and dead ring 4 material is politef, and shell 5 end fitting is SMA type, absolutely
Edge layer 6 material is politef, and core needle 7 is 50 Ω with the impedance of circular electrode 9 junction point to casing ends；Mesh electrode 8
External diameter is 3.5 mm, a diameter of 2.6mm of its central network, and central network dutycycle is less than 20%, and material is the gold of 3 μ m-thick.
Workflow of the present utility model is as follows:
1) shell 5 end in mesh electrode diamond X-ray measuring instrument of the present utility model by cable and RC every
Straight module connects, and RC is connected with grid bias power supply, oscillograph by cable respectively every straight module.
2) grid bias power supply is that diamond 3 is biased.
3) pulsed X-ray exposes to diamond 3 by connection ring 1, pad 2, produces electron hole pair, and in bias plasma
Electric current is produced under the effect of field.
4) oscillograph obtains voltage signal by RC every straight module.
5) according to formula, wherein:For radiant flux,For signal attenuation multiple,For
Oscillograph impedance,For detection device receptance function of the present utility model,For the solid angle that diamond effective area is corresponding,
Radiant flux can be calculated and change over result.
Embodiment 2
The present embodiment is identical with the structure of embodiment 1, is a difference in that, the material of pad 2 uses rustless steel, diamond 3
For the cvd diamond of diameter 5mm thickness 0.5 mm, circular electrode 9 is the gold of diameter 4.5mm thickness 0.5 μm, and shell 5 end connects
Head is N-type；Mesh electrode 8 external diameter is 4.5 mm, a diameter of 3.6mm of its central network, and central network dutycycle is 20%, and material is 1 μm
Thick gold.
Embodiment 3
The present embodiment is identical with the structure of embodiment 1, is a difference in that, the material of pad 2 uses aluminum；Shell 5 end connects
Head is BNC type.
Finally illustrate: the foregoing is only preferred embodiment of the present utility model, be not limited to this reality
With novel, although this utility model being described in detail with reference to previous embodiment, for those skilled in the art,
Technical scheme described in previous embodiment still can be modified by it, or to wherein Partial Feature equivalent, institute
Any modification, equivalent substitution and improvement etc. done, within should be included in protection domain of the present utility model.
Claims (5)
1. a mesh electrode diamond X-ray measuring instrument, it is characterised in that described measurement apparatus include connect ring (1),
Pad (2), diamond (3), dead ring (4), shell (5), insulating barrier (6), core needle (7), described pad (2) is annular metal
Sheet, diamond (3) is cylindrical；Its annexation is, an end face of described diamond (3) is coated with mesh electrode (8), separately
End face is coated with circular electrode (9)；Described connection ring (1) is threadably secured the front end being socketed in shell (5), at shell
(5) pad (2), diamond (3), dead ring (4), insulating barrier (6), pad (2), diamond it are disposed with on interior axis
(3), dead ring (4) is pressed in shell (5) by connecting ring (1)；Described pad (2) compresses with mesh electrode (8) and is connected；
Described insulating barrier (6) is fixing with shell (5) to be connected；Being enclosed with core needle (7) in described insulating barrier (6), core needle (7) is through absolutely
Edge ring (4) is connected with circular electrode (9)；Described shell (5) end is provided with the joint of external cable.
A kind of mesh electrode diamond X-ray measuring instrument the most according to claim 1, it is characterised in that described company
T-Ring (1), pad (2), diamond (3), dead ring (4), insulating barrier (6), core needle (7) are that concentric is arranged.
A kind of mesh electrode diamond X-ray measuring instrument the most according to claim 1, it is characterised in that described net
Shape electrode (8) is made up of with outer shroud central network.
A kind of mesh electrode diamond X-ray measuring instrument the most according to claim 1, it is characterised in that outside described
Shell (5) end fitting is the one in SMA type, N-type, BNC type.
A kind of mesh electrode diamond X-ray measuring instrument the most according to claim 1, it is characterised in that described core
Pin (7) is 50 Ω with the impedance of circular electrode (9) junction point to casing ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620528558.1U CN205720694U (en) | 2016-06-03 | 2016-06-03 | A kind of mesh electrode diamond X-ray measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620528558.1U CN205720694U (en) | 2016-06-03 | 2016-06-03 | A kind of mesh electrode diamond X-ray measuring instrument |
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| Publication Number | Publication Date |
|---|---|
| CN205720694U true CN205720694U (en) | 2016-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620528558.1U Withdrawn - After Issue CN205720694U (en) | 2016-06-03 | 2016-06-03 | A kind of mesh electrode diamond X-ray measuring instrument |
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| CN (1) | CN205720694U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105866820B (en) * | 2016-06-03 | 2018-07-03 | 中国工程物理研究院激光聚变研究中心 | A kind of mesh electrode diamond X-ray measuring instrument |
-
2016
- 2016-06-03 CN CN201620528558.1U patent/CN205720694U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105866820B (en) * | 2016-06-03 | 2018-07-03 | 中国工程物理研究院激光聚变研究中心 | A kind of mesh electrode diamond X-ray measuring instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161123 Effective date of abandoning: 20180703 |