CN207689677U - A kind of electron-positron pair magnetic spectrograph - Google Patents
A kind of electron-positron pair magnetic spectrograph Download PDFInfo
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- CN207689677U CN207689677U CN201820037822.0U CN201820037822U CN207689677U CN 207689677 U CN207689677 U CN 207689677U CN 201820037822 U CN201820037822 U CN 201820037822U CN 207689677 U CN207689677 U CN 207689677U
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- 230000005442 electron-positron pair Effects 0.000 title claims abstract description 10
- 241000826860 Trapezium Species 0.000 claims abstract description 4
- 238000003384 imaging method Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 239000002245 particle Substances 0.000 abstract description 11
- 238000010586 diagram Methods 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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Abstract
The utility model discloses a kind of electron-positron pair magnetic spectrograph, includes the hollow shell of right-angled trapezium, it is characterized in that：Symmetrical triangle magnet is inlaid between the upper and lower bottom plate of the shell, respectively inserted with detector panel on the opposite right-angle side of the bevel edge of the bevel edge of the shell and the shell, it is provided with cylindrical entrance aperture one in the short side of the shell opposite with the right-angle side of detector panel is inserted into, cylindrical entrance aperture two is provided at the right angle corner of the shell.The external entrance aperture two of the utility model is at right-angled apices, High Energy E ~+e ~ can be measured simultaneously, external entrance aperture one can measure high Low-energy Positron, charged particle is done yaw motion in uniform magnetic field by Lorentz force, the energy of positron-electron is obtained according to the relationship of deflection distance and projectile energy, charged particle initial kinetic energy is different, and deflection distance is different in magnetic field, calculates the positron-electron energy on detector panel.
Description
Technical field
The utility model is related to physical experiment equipment fields, in particular, being related to a kind of electron-positron pair magnetic spectrograph.
Background technology
During generating positive electron using ultrashort and ultrahigh laser, accurate measure is carried out to positive electron and is even more important, magnetic spectrograph
Because the features such as its is easy to operate, high energy resolution, is as the major way of measurement positron-electron.The operation principle of magnetic spectrograph is band
Charged particle is done yaw motion in uniform magnetic field by Lorentz force, is obtained according to the relationship of deflection distance and projectile energy
The energy of positron-electron.There are one the entrance aperture of the prior art, and investigative range is small, and magnet cannot be replaced, this is existing skill
The shortcoming of art.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of electron-positron pair magnetic spectrographs, are measuring high low energy positive electricity
High Energy E ~+e ~ can also be measured while sub-, the utility model uses triangular form magnet so that the volume and weight of instrument
Substantially reduce, and magnet can replace, increases the energy resolution of spectrometer.
The utility model adopts the following technical solution realizes goal of the invention：
A kind of electron-positron pair magnetic spectrograph, includes the hollow shell of right-angled trapezium, it is characterized in that：The shell it is upper and lower
It is inlaid with symmetrical triangle magnet between bottom plate, an opposite right angle of the bevel edge of the bevel edge of the shell and the shell
Respectively inserted with detector panel on side, it is arranged in the short side of the shell opposite with the right-angle side of detector panel is inserted into
There is cylindrical entrance aperture one, cylindrical entrance aperture two is provided at the right angle corner of the shell.
It is further limited as to the technical program, the width of the shell right-angle side is not more than 240mm, and height is less
It is not more than 10mm in the diameter of 45mm, the entrance aperture one, the diameter of the entrance aperture two is not more than 10mm, the entrance aperture one
Axial line distance described in the outer edge of magnet be 10mm, the right-angle side of the axis of the entrance aperture two and the shell is in 45 ° of folders
Angle, the entrance aperture one and the entrance aperture two are located at the middle in the formation magnetic field of two magnet, the entrance aperture one
It is parallel with the magnet with the axis of the entrance aperture two.
It is further limited as to the technical program, the detecting plate includes IP imaging plates and support plate.
Further limited as to the technical program, inserted with external entrance aperture one in the entrance aperture one, it is described enter
Inserted with external entrance aperture two in perforation two.
Compared with prior art, the advantages of the utility model and good effect is：The external entrance aperture two of the utility model
At right-angled apices, High Energy E ~+e ~ can be measured simultaneously, and external entrance aperture one can measure high Low-energy Positron, be compared
Accurate positive electron power spectrum, charged particle are done yaw motion in uniform magnetic field by Lorentz force, according to deflection distance with enter
The relationship for penetrating particle energy obtains the energy of positron-electron, and charged particle initial kinetic energy is different, and deflection distance is different in magnetic field,
Calculate the positron-electron energy on detector panel.The utility model is easy to operate, structure novel, is measuring high Low-energy Positron
High Energy E ~+e ~ can also be measured simultaneously, and magnet can be replaced as the magnet of different magnetic field intensity, substantially increase spectrum
The energy resolution of instrument.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the stereogram of the shell of the utility model.
Fig. 3 is the structural schematic diagram of the detector panel of the utility model.
Fig. 4 is the sectional view of the external entrance aperture one of the utility model.
In figure：1, shell, 2, magnet, 3, detector panel, 4, entrance aperture one, 5, entrance aperture two, 6, external entrance aperture one, 7,
External entrance aperture two.
Specific implementation mode
Below in conjunction with the accompanying drawings, a specific implementation mode of the utility model is described in detail, it is to be understood that this
The protection domain of utility model is not restricted by specific implementation.
As Figure 1-Figure 4, the utility model includes the hollow shell 1 of right-angled trapezium, and the shell 1 is by upper plate under
Bottom plate, which is bolted, to be integrated, and bolt can disassemble, and is convenient for changing magnet 2, and shell 1 uses silicon steel or other magnetic conductions
Material, is inlaid with symmetrical triangle magnet 2 between the upper and lower bottom plate of the shell 1, the bevel edge of the shell 1 and described
Respectively inserted with detector panel 3 on an opposite right-angle side of the bevel edge of shell, with the right-angle side phase for being inserted into the detector panel 3
To the shell 1 short side on be provided with cylindrical entrance aperture 1, be provided with circle at the right angle corner of the shell 1
Cylindrical entrance aperture 25.
The width of 1 right-angle side of the shell is not more than 240mm, preferably 240mm, is highly not more than 45mm, preferably
The diameter of 45mm, the entrance aperture 1 are not more than 10mm, and the diameter of preferably 10mm, the entrance aperture 25 are not more than 10mm,
The outer edge of preferably 10mm, magnet 2 described in the axial line distance of the entrance aperture 1 are 10mm, the axis of the entrance aperture 25
Right-angle side with the shell 1 is in 45 ° of angles, and the entrance aperture 1 and the entrance aperture 25 are located at two 2 shapes of the magnet
At the middle in magnetic field, the axis of the entrance aperture 1 and the entrance aperture 25 is parallel with the magnet 2.
The detector panel 3 includes IP imaging plates 3a and support plate 3b, and the entrance aperture 1 is interior inserted with external entrance aperture
One 6, the overall diameter of external entrance aperture 1 is not more than 10mm, preferably 10mm, interior diameter 5mm, 25 interpolation of the entrance aperture
Entering has in external entrance aperture 27, and 27 overall diameter of external entrance aperture is not more than 10mm, preferably 10mm, interior diameter 5mm.
The workflow of the utility model is：The homogeneity range magnetic field of this preferred embodiment is 2000Gs, appearance and size 240cm
× 240cm × 261.5cm, field homogeneity area size 160cm × 165cm × 245cm, gapped magnetic field size are 1cm.This is preferred real
It applies example and provides magnetic field using permanent magnet, compared with electromagnetic field, permanent magnet does not need additional energy supply, can be according to prior
The energy range of observation particle is imagined to set magnetic field.Charged particle initial kinetic energy is different, and deflection distance is different in magnetic field, calculates
Go out energy range on detector panel 3, particle kinetic energy is corresponded with 3 position of detector panel, and external entrance aperture 27 is in right-angled apices
Place, can measure High Energy E ~+e ~, can substantially distinguish the positron-electron of hundred MeV of 7MeV-, external entrance aperture 1 can be surveyed simultaneously
High Low-energy Positron is measured, for measuring range in hundred keV-30MeV, charged particle is done deflection fortune in uniform magnetic field by Lorentz force
It is dynamic, the energy of positron-electron is obtained according to the relationship of deflection distance and projectile energy, charged particle initial kinetic energy is different,
Deflection distance is different in magnetic field, calculates the positron-electron energy on detector panel 3.In order to realize higher energy to positron-electron
It differentiates, stronger magnet 2 can be replaced, more accurately to measure positron-electron energy.
Disclosed above is only a specific embodiment of the utility model, and still, the utility model is not limited to this,
The changes that any person skilled in the art can think of should all fall into the scope of protection of the utility model.
Claims (4)
1. a kind of electron-positron pair magnetic spectrograph, includes the hollow shell of right-angled trapezium, it is characterized in that：The upper and lower bottom of the shell
It is inlaid with symmetrical triangle magnet between plate, an opposite right-angle side of the bevel edge of the bevel edge of the shell and the shell
It is upper respectively inserted with detector panel, be provided in the short side of the shell opposite with the right-angle side of detector panel is inserted into
Cylindrical entrance aperture one is provided with cylindrical entrance aperture two at the right angle corner of the shell.
2. electron-positron pair magnetic spectrograph according to claim 1, it is characterized in that：The width of the shell right-angle side is not more than
240mm is highly not more than 45mm, and the diameter of the entrance aperture one is not more than 10mm, and the diameter of the entrance aperture two is not more than
10mm, the outer edge of magnet described in the axial line distance of the entrance aperture one are 10mm, the axis of the entrance aperture two with it is described outer
The right-angle side of shell is in 45 ° of angles, and the entrance aperture one and the entrance aperture two are being located at the formation magnetic field of two magnet just
The axis of centre, the entrance aperture one and the entrance aperture two is parallel with the magnet.
3. electron-positron pair magnetic spectrograph according to claim 1, it is characterized in that：The detector panel include IP imaging plates and
Support plate.
4. electron-positron pair magnetic spectrograph according to claim 1, it is characterized in that：Inserted with outer merging in the entrance aperture one
Perforation one, the entrance aperture two are interior inserted with external entrance aperture two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820037822.0U CN207689677U (en) | 2018-01-10 | 2018-01-10 | A kind of electron-positron pair magnetic spectrograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820037822.0U CN207689677U (en) | 2018-01-10 | 2018-01-10 | A kind of electron-positron pair magnetic spectrograph |
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| Publication Number | Publication Date |
|---|---|
| CN207689677U true CN207689677U (en) | 2018-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820037822.0U Expired - Fee Related CN207689677U (en) | 2018-01-10 | 2018-01-10 | A kind of electron-positron pair magnetic spectrograph |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113075721A (en) * | 2021-03-26 | 2021-07-06 | 中国工程物理研究院上海激光等离子体研究所 | Wide-range portable multifunctional electronic magnetic spectrometer |
| CN114137598A (en) * | 2021-11-05 | 2022-03-04 | 北京大学 | Positive and negative electron magnetic spectrometer |
| CN116990855A (en) * | 2023-09-28 | 2023-11-03 | 中国工程物理研究院激光聚变研究中心 | On-line electronic magnetic spectrometer |
-
2018
- 2018-01-10 CN CN201820037822.0U patent/CN207689677U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113075721A (en) * | 2021-03-26 | 2021-07-06 | 中国工程物理研究院上海激光等离子体研究所 | Wide-range portable multifunctional electronic magnetic spectrometer |
| CN113075721B (en) * | 2021-03-26 | 2022-09-30 | 中国工程物理研究院上海激光等离子体研究所 | Wide-range portable multifunctional electronic magnetic spectrometer |
| CN114137598A (en) * | 2021-11-05 | 2022-03-04 | 北京大学 | Positive and negative electron magnetic spectrometer |
| CN116990855A (en) * | 2023-09-28 | 2023-11-03 | 中国工程物理研究院激光聚变研究中心 | On-line electronic magnetic spectrometer |
| CN116990855B (en) * | 2023-09-28 | 2024-05-14 | 中国工程物理研究院激光聚变研究中心 | On-line electronic magnetic spectrometer |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180803 Termination date: 20190110 |
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| CF01 | Termination of patent right due to non-payment of annual fee |