CN106646578A - High-energy proton beam density distribution testing device - Google Patents
High-energy proton beam density distribution testing device Download PDFInfo
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- CN106646578A CN106646578A CN201611198278.XA CN201611198278A CN106646578A CN 106646578 A CN106646578 A CN 106646578A CN 201611198278 A CN201611198278 A CN 201611198278A CN 106646578 A CN106646578 A CN 106646578A
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- electrometer
- faraday cup
- moving platform
- test device
- energy proton
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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
- G01T1/02—Dosimeters
- G01T1/14—Electrostatic dosimeters
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Molecular Biology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Measurement Of Radiation (AREA)
Abstract
The invention relates to the technical field of proton adsorbed dose research, and specifically relates to a high-energy proton beam density distribution testing device. The device comprises a vacuum cavity, a Faraday cup, a multi-dimensional moving platform, a shielding box and a static electrometer, wherein the Faraday cup is fixed in the vacuum cavity through the multi-dimensional moving platform, and is enabled to be opposite to a proton beam in the vacuum cavity. The Faraday cup is connected with the input end of the static electrometer in the shielding box, and a grounding end of the static electrometer and the Faraday cup are connected with a side wall of the vacuum cavity through grounding lines. A motor controller in the shielding box is connected with the multi-dimensional moving platform, and can control the multi-dimensional moving platform to move. The device provided by the invention can test the density distribution of the high-energy proton beam in the vacuum cavity, and can achieve the comprehensive assessment of a charge environment in an electronic sample room. The impact on the device from the external interference is small, and the device can effectively detect the density distribution of the high-energy proton beam.
Description
Technical field
The invention belongs to proton uptake dose study technical field, and in particular to a kind of high energy proton current density contours are surveyed
Trial assembly is put.
Background technology
Proton is to aitiogenic important projectile in nuclear physics and particle physics experimental study, while it is also
The main component of cosmic ray.Ionising radiation composition and the ground in space is very different, and radiation intensity is also high than ground background.
In the earth external space, ionising radiation is necessarily to run into solar-system operation and inevitable important environmental factor.
For the electronic system for being applied to satellite or spacecraft, often because undergoing in natural space radiation environment
Space radiation and cause performance to lower or failure, or even the catastrophic effect for ultimately resulting in satellite or spacecraft.Therefore, it is
Meet to the demand of proton dosage measurement in space ionising radiation and radiation hardening, in the urgent need to setting up high energy proton line
Density Distribution test device.Faraday's agar diffusion method is a kind of most simple, the most reliable method for measuring proton dose.It is mainly sharp
Primary incoming particle beam is prevented completely with absorber, is then made up the principle that all charged particles are all collected of inner core,
Measured electric current is determined that the method is widely used by incoming particle beam intensity completely.
Using high sensitivity Weak current tester, in high vacuum and environment vacuum environment, using Faraday cup to height
Can proton beam Density Distribution tested, charge environment that can be in overall merit electrical specimens room.
The content of the invention
It is an object of the invention to provide a kind of high energy proton current density contours test device, it can be high with effective detection
Energy proton beam Density Distribution, and it is little by external influences.
Technical scheme is as follows：A kind of high energy proton current density contours test device, the test device includes
Vacuum chamber, Faraday cup, multi-dimensional moving platform, shielding box and electrometer, wherein, Faraday cup is solid by multi-dimensional moving platform
It is fixed in the vacuum chamber, and make proton beam in Faraday cup and vacuum chamber relative to；Faraday cup with it is quiet in the shielding box
Electricity meter input is connected, and the earth terminal and Faraday cup of electrometer are connected by ground wire with vacuum chamber side wall；It is located at
Electric machine controller is connected with multi-dimensional moving platform in shielding box, and controllable multi-dimensional moving platform is moved.
Described Faraday cup is connected by single shielded cable with the vacuum sealing connector on the wall of vacuum chamber side, very
The empty hermetically sealed connector other end is connected by single shielded cable with the electrometer input in shielding box.
PC A is additionally provided with described shielding box, it is connected with electrometer, electric machine controller, it is right to realize by PC A
The data processing and control of electrometer and electric machine controller.
Described PC A is also connected by cable with the PC B outside shielding box, can send remote to PC A by PC B
Process control signal is controlled, wherein, PC A can control electrometer, judge electrometer working condition, and heap in case of a fault
Electrometer is resetted, meanwhile, the data of electrometer measurement can be calculated, and show calculating data and its average, standard
Difference and variance.
Described multi-dimensional moving platform is two-dimensional movement platform, drives multi-dimensional moving platform to drive Faraday cup by motor
Axial direction, normal orientation two-dimensional movement in vacuum chamber.
Described multi-dimensional moving platform is three-dimensional mobile platform, drives multi-dimensional moving platform to drive farad by stepper motor
The glass in vacuum chamber axially, normal direction box radial direction it is three-dimensional mobile.
The present invention remarkable result be：A kind of high energy proton beam Density Distribution test device of the present invention, can
High energy proton beam Density Distribution in vacuum chamber is tested, charge environment that can be in overall merit electrical specimens room should
Device be subject to external influences it is little, can effective detection to high energy proton current density contours.
Description of the drawings
Fig. 1 is a kind of high energy proton current density contours test device schematic diagram of the present invention；
In figure：1st, vacuum chamber；2nd, proton beam；3rd, Faraday cup；4th, single shielded cable；5th, ground wire；6th, multidimensional movement
Platform；7th, vacuum sealing connector；8th, shielding box；9th, electrometer；10th, electric machine controller；11st, PC A；12nd, between measuring；13、
PC B.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment is described in further detail to the present invention.
As shown in figure 1, a kind of high energy proton current density contours test device, including vacuum chamber 1, Faraday cup 3, multidimensional
Mobile platform 6, shielding box 8 and electrometer 9, wherein, Faraday cup 3 is fixed in vacuum chamber 1 by multi-dimensional moving platform 6
Portion, and make Faraday cup 3 corresponding with the proton beam 2 in vacuum chamber 1；Multi-dimensional moving platform 6 can be to carry out two using electromechanics
The mobile platform structure of dimension, or be the three-dimensional mobile platform that axial direction, normal direction and radial position control is carried out by stepper motor, it is many
Dimension mobile platform 6 can drive Faraday cup 3 to move in vacuum chamber 1, and each position proton beam line of inside of detection vacuum chamber 1 is close
Spend situation over time；Faraday cup 3 is connected by single shielded cable 4 with the vacuum sealing of installation on the side wall of vacuum chamber 1
Connect device 7 to be connected, the other end of vacuum sealing connector 7 is defeated with the electrometer 9 in shielding box 8 by single shielded cable
Enter end to be connected, the earth terminal and Faraday cup 3 of electrometer 9 are connected by ground wire 5 with the side wall of vacuum chamber 1, make method
After the glass of 3 electric current for producing is drawn by single shielded cable 4 and electrometer 9, stream to vacuum chamber side wall publicly, test back by formation
Road；Electric machine controller 10 in shielding box 8 is connected by cable with multi-dimensional moving platform 6, is moved for controlling multidimensional
Movement of the moving platform 6 in vacuum chamber 1；The PC A11 being placed in shielding box 8 is connected with electrometer 9 and electric machine controller,
Data processing and control to electrometer 9 and electric machine controller 10 is realized by PC A11；PC in being placed on 12 between measurement
Machine B13 is connected by cable with the PC A11 in shielding box 8, and remotely control is sent to PC A11 by PC B13
Signal is controlled, wherein, PC A11 can control electrometer 9, judge the working condition of electrometer 9, and in case of a fault heap is quiet
Electricity meter 9 is resetted, meanwhile, the data of the measurement of electrometer 9 can be calculated, and show calculating data and its average, standard
Difference and variance；In addition, the movement of the controllable multi-dimensional moving platforms 6 of PC A11, different using the scanning survey space of Faraday cup 3
The line information of position, and total sweep limits and step-length are set, and measurement data is shown in real time.
Claims (6)
1. a kind of high energy proton current density contours test device, it is characterised in that：The test device includes vacuum chamber (1), method
The glass (3), multi-dimensional moving platform (6), shielding box (8) and electrometer (9) are drawn, wherein, Faraday cup (3) is moved by multidimensional
Platform (6) is fixed in vacuum chamber (1), and makes Faraday cup (3) corresponding with the proton beam (2) in vacuum chamber (1)；Faraday
Cup (3) is connected with electrometer (9) input in shielding box (8), the earth terminal and Faraday cup (3) of electrometer (9)
It is connected with vacuum chamber (1) side wall by ground wire；Electric machine controller (10) and multi-dimensional moving platform in shielding box (8)
It is connected, controllable multi-dimensional moving platform (6) is moved.
2. a kind of high energy proton current density contours test device according to claim 1, it is characterised in that：Described method
The glass (3) are drawn to be connected with the vacuum sealing connector (7) on the wall of vacuum chamber (1) side by single shielded cable (4), vacuum is close
Envelope connector (7) other end is connected by single shielded cable with electrometer (9) input in shielding box (8).
3. a kind of high energy proton current density contours test device according to claim 1, it is characterised in that：Described screen
Cover and PC A (11) is additionally provided with box (8), it is connected with electrometer (9), electric machine controller (10), realized by PC A (11)
Data processing and control to electrometer (9) and electric machine controller (10).
4. a kind of high energy proton current density contours test device according to claim 3, it is characterised in that：Described PC
Machine A (11) is also connected by PC B (13) of the cable with shielding box (8) outward, can be sent out to PC A (11) by PC B (13)
Remote control signal is sent to be controlled, wherein, PC A (11) can control electrometer (9), judge electrometer (9) working condition, and
In case of a fault heap electrometer (9) is resetted, meanwhile, the data of electrometer (9) measurement can be calculated, and show meter
Count evidence and its average, standard deviation and variance.
5. a kind of high energy proton current density contours test device according to claim 1, it is characterised in that：Described is more
Dimension mobile platform is two-dimensional movement platform, drives multi-dimensional moving platform (6) to drive Faraday cup (3) in vacuum chamber by motor
(1) axial direction, normal orientation two-dimensional movement in.
6. a kind of high energy proton current density contours test device according to claim 1, it is characterised in that：Described is more
Dimension mobile platform is three-dimensional mobile platform, drives multi-dimensional moving platform (6) to drive Faraday cup (3) in vacuum by stepper motor
Axial direction, normal direction box radial direction are three-dimensional mobile in chamber (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611198278.XA CN106646578A (en) | 2016-12-22 | 2016-12-22 | High-energy proton beam density distribution testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611198278.XA CN106646578A (en) | 2016-12-22 | 2016-12-22 | High-energy proton beam density distribution testing device |
Publications (1)
| Publication Number | Publication Date |
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| CN106646578A true CN106646578A (en) | 2017-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611198278.XA Pending CN106646578A (en) | 2016-12-22 | 2016-12-22 | High-energy proton beam density distribution testing device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110221339A (en) * | 2018-10-26 | 2019-09-10 | 新瑞阳光粒子医疗装备(无锡)有限公司 | A kind of beam intensity detection device and particle accelerator |
| CN110246736A (en) * | 2019-06-28 | 2019-09-17 | 华中科技大学 | A kind of multipage Faraday cup and measurement method |
| CN110879409A (en) * | 2019-11-20 | 2020-03-13 | 中国科学院近代物理研究所 | Detector for monitoring density distribution of wide charged particle beams in real time |
| CN112666594A (en) * | 2021-01-05 | 2021-04-16 | 中国原子能科学研究院 | Measuring device and system for proton beam current |
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| CN2491851Y (en) * | 2001-07-17 | 2002-05-15 | 西北核技术研究所 | Faraday's prober for PA class proton beam measurement |
| CN201229407Y (en) * | 2007-12-28 | 2009-04-29 | 中国航天科技集团公司第五研究院第五一〇研究所 | Nano-ampere and picoampere electronic beam current measuring set for pulse electron accelerator |
| CN201707381U (en) * | 2010-06-08 | 2011-01-12 | 江苏天瑞仪器股份有限公司 | Ion current intensity detecting device of samples in vacuum cavity of mass spectrograph |
| CN102353978A (en) * | 2011-06-30 | 2012-02-15 | 南京理工大学 | Faraday cup sensing device used in electron beam processing beam quality test |
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| CN105470085A (en) * | 2015-12-04 | 2016-04-06 | 中国电子科技集团公司第四十八研究所 | High-vacuum internal movement beam measurement Faraday drive device |
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| JPS5871466A (en) * | 1981-10-23 | 1983-04-28 | Hitachi Ltd | Detector of ion current |
| CN2491851Y (en) * | 2001-07-17 | 2002-05-15 | 西北核技术研究所 | Faraday's prober for PA class proton beam measurement |
| CN201229407Y (en) * | 2007-12-28 | 2009-04-29 | 中国航天科技集团公司第五研究院第五一〇研究所 | Nano-ampere and picoampere electronic beam current measuring set for pulse electron accelerator |
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| CN102353978A (en) * | 2011-06-30 | 2012-02-15 | 南京理工大学 | Faraday cup sensing device used in electron beam processing beam quality test |
| CN103091698A (en) * | 2013-01-23 | 2013-05-08 | 哈尔滨工业大学 | Test method of proton/electronic synthetical irradiation beam fluence |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110221339A (en) * | 2018-10-26 | 2019-09-10 | 新瑞阳光粒子医疗装备(无锡)有限公司 | A kind of beam intensity detection device and particle accelerator |
| CN110246736A (en) * | 2019-06-28 | 2019-09-17 | 华中科技大学 | A kind of multipage Faraday cup and measurement method |
| CN110246736B (en) * | 2019-06-28 | 2020-09-08 | 华中科技大学 | Multi-page Faraday cup and measuring method |
| CN110879409A (en) * | 2019-11-20 | 2020-03-13 | 中国科学院近代物理研究所 | Detector for monitoring density distribution of wide charged particle beams in real time |
| CN110879409B (en) * | 2019-11-20 | 2021-06-01 | 中国科学院近代物理研究所 | Detector for monitoring density distribution of wide charged particle beams in real time |
| CN112666594A (en) * | 2021-01-05 | 2021-04-16 | 中国原子能科学研究院 | Measuring device and system for proton beam current |
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