CN112987077B - Low-energy ion beam detection and ion beam current strength self-balancing interlocking control system - Google Patents
Low-energy ion beam detection and ion beam current strength self-balancing interlocking control system Download PDFInfo
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- CN112987077B CN112987077B CN202110305595.1A CN202110305595A CN112987077B CN 112987077 B CN112987077 B CN 112987077B CN 202110305595 A CN202110305595 A CN 202110305595A CN 112987077 B CN112987077 B CN 112987077B
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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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T7/00—Details of radiation-measuring instruments
Abstract
The invention relates to a low-energy ion beam detection and ion beam current strength self-balancing interlocking control system, which comprises: an ion beam detection unit configured to detect an ion beam intensity signal; the data acquisition and linkage unit is configured to perform data analysis and self-balancing judgment on the acquired ion beam current intensity signal, realize linkage of the linked equipment and adjustment of the ion beam current intensity, and enable the nuclear track membrane production terminal to reach the current intensity condition of normal production; and the data display and storage unit is configured to acquire the data acquisition and linkage unit signals, and store and display the data and the state information of the nuclear track membrane production terminal. The invention can realize the detection of low energy flow intensity, solve the problem of inaccurate flow intensity detection during the production of the nuclear pore membrane, realize the self-balancing adjustment of the beam flow intensity, and realize other production linkage in a matching way.
Description
Technical Field
The invention relates to a low-energy ion beam detection and ion beam intensity self-balancing linkage control system of a nuclear pore membrane production terminal, and relates to the field of low-current intensity heavy ion beam detection.
Background
The nuclear pore membrane is the most precise micro-pore filtering membrane in the world, and is a porous plastic film, dense and hemp pores are arranged on the membrane, and the shape and the size of each pore are the same. The nuclear pore membranes are of many specifications, with membrane thicknesses ranging from 5 microns to 60 microns, pore sizes ranging from 0.2 microns to 15 microns, and pore densities ranging from 1 to the power of 9 per square centimeter of 1-10. The nuclear pore membrane is generally perforated by heavy ions provided by a high-energy accelerator, and the perforation of the heavy ions is the most critical ring in the nuclear pore membrane production process, so the ion beam irradiation is a very important production step in the production of the nuclear pore membrane. Ion beam detection is an important step of ion beam irradiation, accurately detects the flow intensity of the ion beam, and can produce nuclear pore membranes with different specifications according to the flow intensity.
Because the ion beam is very low when the nuclear pore membrane is irradiated and produced, the interception type ion beam detector can not be used (the detection principle of the interception type ion beam detector is that the ion beam must be irradiated on the interception type ion beam detector to detect the current intensity, so the irradiated ion beam can be blocked, and the production can not be carried out), the interception type ion beam detector can influence the normal production of the nuclear pore membrane, for example, the Faraday used by the current terminal is a conventional ion beam detection method, because the interception type ion beam detector is one of the interception type ion beam detectors, the on-line production of the nuclear pore membrane can be influenced, but the interception type ion beam detector can not detect the low current intensity currently, the existing simple non-interception type ion beam detector can detect the current intensity mA and more, and has no corresponding interlocking alarm device, when the ion beam current intensity is larger or lower, the automatic lowering or raising is not carried out, and only the manual adjustment can be carried out, not only wastes time and labor, but also has lower production efficiency.
Disclosure of Invention
In view of the above problems, the present invention aims to provide a nuclear track membrane production terminal low energy ion beam detection and ion beam intensity self-balancing linkage control system capable of realizing detection of low energy beam intensity and self-balancing control of ion beam intensity.
In order to achieve the purpose, the invention adopts the following technical scheme: a low-energy ion beam detection and ion beam current intensity self-balancing interlocking control system comprises:
an ion beam detection unit configured to detect an ion beam intensity signal;
the data acquisition and linkage unit is configured to perform data analysis and self-balancing judgment on the acquired ion beam current intensity signal, realize linkage of the linked equipment and adjustment of the ion beam current intensity, and enable the nuclear track membrane production terminal to reach the current intensity condition of normal production;
and the data display and storage unit is configured to acquire the data acquisition and linkage unit signals, and store and display the data and the state information of the nuclear track membrane production terminal.
Further, the ion beam detection unit comprises a front end detector, a low noise amplifier and a lock-in amplifier;
the front-end detector is nested on the ion beam pipeline and is configured to detect an ion beam intensity signal in the beam pipeline;
the low-noise amplifier is configured to amplify the acquired ion beam intensity signal;
the phase-locked amplifier is configured to lock one fixed frequency signal and discard other frequency signals.
Furthermore, the number of the low noise amplifiers is three, and three low noise amplifiers are used for carrying out three-stage amplification on the ion beam intensity signal.
Further, the data acquisition and interlocking unit comprises an FPGA-based controller, an analog signal acquisition daughter card and an interlocking relay;
the FPGA-based controller acquires the output signal of the lock-in amplifier through the analog signal acquisition daughter card;
the FPGA-based controller is provided with output optical ports, and the output optical ports are used for connecting signals to controlled equipment to control the controlled equipment after photoelectric conversion through optical fiber communication;
the controller based on the FPGA also carries out interlocking control on the interlocked equipment through the interlocking relay and outputs an alarm signal.
Furthermore, an ion beam current intensity self-balancing module is arranged in the FPGA-based controller, compares the acquired ion beam current intensity data with a set threshold value, can respectively start linkage conditions or correction conditions according to different set threshold value conditions, realizes linkage of the linked equipment and adjustment of ion beam current intensity, judges whether a nuclear pore membrane production terminal meets production conditions according to preset conditions, starts normal production if the nuclear pore membrane production terminal meets the production conditions, and performs a new round of comparison if the nuclear pore membrane production terminal does not meet the production conditions.
Further, the interlocking condition comprises an alarm when the flow intensity is too high or too low, and when the interlocking condition is met, a signal is sent to the interlocking relay to control the interlocked equipment to act.
Further, the correction condition comprises the increase or decrease of the correction power supply, and when the correction condition is met, a signal is sent to adjust the output value of the correction power supply to achieve the increase or decrease of the ion beam current.
Further, the data display storage unit comprises a switch, a server and a computer client;
the switch is connected with the FPGA-based controller through a network port and is configured to send data to the server and the computer client;
a database is arranged in the server and is configured to store data for analysis and historical query;
and the computer client is configured to display the low-energy beam detection and linkage and the state information of the controlled equipment in real time.
Due to the adoption of the technical scheme, the invention has the following advantages:
1. the invention can realize the detection of low energy flow intensity, solve the problem of inaccurate flow intensity detection during the production of the nuclear track membrane and realize other production linkage in a matching way;
2. the invention adopts a non-interception detector to detect low energy flux, then uses a low noise amplifier to amplify signals, then uses a lock-in amplifier to lock the frequency of the detected ion beam to filter noise, and uses a controller based on FPGA to acquire data, and carries out linkage alarm, and carries out alarm display on the interface of a computer client;
3. the ion beam intensity self-balancing control system has the functions of ion beam intensity signal detection, self-feedback signal alarm and ion beam intensity self-feedback, and can automatically adjust the intensity of the ion beam according to the intensity signal detected by the detector and a related power supply through the ion beam intensity self-balancing control mechanism so as to achieve the balance of the ion beam intensity required by production;
in conclusion, the invention can be widely applied to the nuclear pore membrane production of the nuclear pore membrane production terminal.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Like reference numerals refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a schematic diagram of a low-energy ion beam detection and ion beam intensity self-balancing linkage control system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an ion beam detection unit according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a data acquisition and linkage unit according to an embodiment of the present invention;
fig. 4 is a schematic view of a data processing flow of the ion beam current intensity self-balancing module according to the embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order discussed or illustrated, unless specifically identified as an order of performance. It should also be understood that additional or alternative steps may be used.
Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "upper", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. This spatially relative term is intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures.
As shown in fig. 1, the low-energy ion beam detection and ion beam current strength self-balancing interlocking control system for a nuclear track membrane production terminal provided by the embodiment of the invention includes an ion beam detection unit 1, a data acquisition and interlocking unit 2 and a data display storage unit 3.
An ion beam detection unit 1 configured to detect an ion beam intensity signal.
And the data acquisition and linkage unit 2 is configured to perform data analysis and self-balancing judgment on the acquired ion beam current intensity signal, realize linkage of the linked equipment and adjustment of the ion beam current intensity, and finally reach the current intensity condition of normal production.
And the data display and storage unit 3 is configured to acquire the data acquisition and linkage unit 2 signal, and store and display the data and the state information of the nuclear track membrane production terminal.
In some embodiments of the present invention, as shown in fig. 2, the ion beam detection unit 1 includes a front end detector 11, a low noise amplifier 12, and a lock-in amplifier 13.
The front end detector 11 is embedded in the ion beam pipeline 14 and is used for detecting an ion beam intensity signal in the ion beam pipeline 14, wherein the ion beam intensity signal is a weak beam intensity signal and is converted into a weak voltage signal.
And the low-noise amplifier 12 is used for amplifying the collected weak voltage.
Since the signal detected by the front-end detector 11 is too weak, a low-noise amplifier 12 is provided. In the embodiment, three low noise amplifiers 12-1 to 12-3 are adopted for amplifying the signal of the front-end detector 11, and the signal is subjected to three-stage amplification through the low noise amplifiers, so that the numerical value which can be normally acquired by the phase-locked amplifier 13 is achieved. It should be noted that the noise of the low noise amplifier must be small enough to otherwise overwhelm the normal signal, and the amplification factor of the low noise amplifier 12 of the present embodiment is 40-60db, for example.
The phase-locked amplifier 13 is used for locking a certain fixed frequency signal, other frequency signals are regarded as noise signals to be discarded, and when the ion beam current intensity signal is subjected to frequency locking in the phase-locked amplifier 13, the output end of the phase-locked amplifier 13 outputs an analog signal.
Although the signal is amplified by the low noise amplifier 12, the noise signal is always included in the amplified signal due to the electromagnetic interference of the environment where the field is located, so the present embodiment is provided with the lock-in amplifier 13, for example, the frequency of the ion beam to be detected is 10Mhz, the signal passing through the lock-in amplifier is 10Mhz, signals of other frequencies are filtered out, and the noise signal is also greatly reduced.
In some embodiments of the present invention, as shown in fig. 3, the data acquisition and interlocking unit 2 includes an FPGA-based controller 21, an analog signal acquisition daughter card 22, and an interlocking relay 23;
the controller 21 based on the FPGA has data acquisition and control functions, the controller 21 based on the FPGA acquires the output signal of the lock-in amplifier 13 through the analog signal acquisition daughter card 22, a specific acquisition channel can be set according to actual conditions, the analog signal acquisition daughter card 22 of the embodiment is a four-channel, and can acquire four paths of analog signals simultaneously, which are taken as examples in sequence.
The controller 21 based on the FPGA is provided with two output optical ports, and each output optical port controls the controlled device by connecting a signal to a network controller end of the controlled device after photoelectric conversion through optical fiber communication.
The controller 21 based on the FPGA also performs interlocking control on the interlocked equipment through an interlocking relay 23 and outputs an alarm signal. In the embodiment, the controller 21 based on the FPGA is connected to six interlocking relays 23, and can perform interlocking control and alarm signal output on six different types of equipment at the same time. The interlocking alarm principle of the interlocking relay 23 is that a high-low level signal triggering mode is adopted, and when a signal acquired by the controller 21 based on the FPGA exceeds a set threshold value, a high-low level signal is sent to the interlocking relay 23 to trigger the interlocking relay 23 to be closed, so that corresponding interlocked equipment is communicated to make an action response. The interlocked device may be an alarm lamp, a valve, a motion control motor, or a power supply, which is not limited herein.
As shown in fig. 4, an ion beam intensity self-balancing module is disposed in the FPGA-based controller 21, and compares the acquired ion beam intensity data with a set threshold, and according to different set threshold conditions, different linkage conditions or correction conditions can be respectively started. The interlock condition setting is for displaying an alarm or a control device such as an apparatus to be interlocked which is turned on or off, etc., for example, when the interlock condition is an alarm when the flow intensity is too high or too low, a signal is sent to the interlock relay 23 to control the stop of the moving motor, etc.; the correction condition is set to start the numerical correction of the correction power supply, for example, when the correction condition is the rising or falling value of the correction power supply, the rising or falling of the ion beam intensity is realized by adjusting the output value of the correction power supply, whether the nuclear pore membrane production terminal meets the production condition is judged by adjusting and according to the preset condition, if the nuclear pore membrane production terminal meets the production condition, normal production is started, and if the nuclear pore membrane production terminal does not meet the production condition, a new round of comparison is performed.
In some embodiments of the present invention, the data display storage unit 3 comprises a switch 31, a server 32, and a computer client 33;
the FPGA-based controller 21 is connected with a switch 31 through a network port, and the switch 31 is used for sending data to a server 32 and a computer client 33;
a database 321 is disposed in the server 32, and the database 321 is used for storing data for analysis and historical query.
The computer client 33 is used for displaying the status information of the low energy beam detection and linkage, the controlled device, and the like, such as alarm information display, in real time, for example.
In summary, the invention detects the ion beam information through the non-interception type detector at the front end, because the ion beam is very low during the production of the nuclear pore membrane, a low noise amplifier is added at the rear end to amplify the signal, a lock-in amplifier is used to lock the frequency, and a controller based on the FPGA is used to acquire and analyze data to perform interlocking and data correction, thereby finally realizing the self-balancing function of strong ion beam current during the production of the nuclear pore membrane.
It should be noted that the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present application. Each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s).
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims. The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application should be defined by the claims.
Claims (3)
1. The utility model provides a low energy ion beam is surveyed and chain control system of strong self-balancing of ion beam which characterized in that, this system includes:
an ion beam detection unit configured to detect an ion beam intensity signal, the ion beam detection unit including a front end detector, a low noise amplifier, and a lock-in amplifier; the front-end detector is nested on the ion beam pipeline and is configured to detect an ion beam current intensity signal in the ion beam pipeline; the low-noise amplifier is configured to amplify the acquired ion beam intensity signal; the phase-locked amplifier is configured to lock a certain fixed frequency signal and discard other frequency signals;
the data acquisition and linkage unit is configured to perform data analysis and judgment on the acquired ion beam current intensity signal, realize linkage of the linked equipment and adjustment of the ion beam current intensity and enable the nuclear track membrane production terminal to achieve the ion beam current intensity condition of normal production; the data acquisition and interlocking unit comprises an FPGA-based controller, an analog signal acquisition daughter card and an interlocking relay; the controller based on the FPGA acquires the output signal of the ion beam detection unit through the analog signal acquisition sub card; the FPGA-based controller is provided with output optical ports, and the output optical ports are used for connecting signals to controlled equipment to control the controlled equipment after photoelectric conversion through optical fiber communication; the FPGA-based controller also carries out interlocking control on the interlocked equipment through the interlocking relay and outputs an alarm signal; an ion beam current intensity self-balancing module is arranged in the FPGA-based controller, compares an acquired ion beam current intensity signal with a set threshold value, can respectively start a linkage condition or a correction condition according to different set threshold value conditions, realizes linkage of a linked device and adjustment of ion beam current intensity, judges whether a nucleopore membrane production terminal meets production conditions according to preset conditions, starts normal production if the nucleopore membrane production terminal meets the production conditions, and performs a new round of comparison if the nucleopore membrane production terminal does not meet the production conditions; the correction condition comprises the rising or the falling of a correction power supply, and when the correction condition is met, a signal is sent to adjust the output value of the correction power supply to realize the rising or the falling of the ion beam intensity;
the data display and storage unit is configured to acquire the data acquisition and linkage unit signals and store and display data and state information of the nuclear track membrane production terminal, and the data display and storage unit comprises a switch, a server and a computer client; the switch is connected with the FPGA-based controller through a network port and is configured to send data to the server and the computer client; a database is arranged in the server and is configured to store data for analysis and historical query; the computer client is configured to display the low energy ion beam detection or linkage process and the state information of the controlled equipment in real time.
2. The system of claim 1, wherein the number of the low-energy ion beam detection and ion beam intensity self-balancing interlock control system is three, and the ion beam intensity signal is amplified in three stages by the three low-noise amplifiers.
3. The system of claim 1, wherein the linkage condition comprises an alarm when the ion beam current is too high or too low, and when the linkage condition is satisfied, a signal is sent to the linkage relay to control the interlocked equipment to act.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102873970A (en) * | 2011-07-15 | 2013-01-16 | 北京强邦科技有限公司 | Preparation method of preservative film |
| CN102908902A (en) * | 2012-07-04 | 2013-02-06 | 毕明光 | Technique for producing nucleopore membranes by miniature particle accelerator |
| CN111716772A (en) * | 2020-06-11 | 2020-09-29 | 中国科学院近代物理研究所 | Nuclear pore membrane automatic production device and method capable of self-adapting beam flow |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990040319A (en) * | 1997-11-17 | 1999-06-05 | 성재갑 | Preparation of Microporous Membrane by Irradiation of Ion Particles on Polymer Surface |
| CN1132666C (en) * | 2000-11-27 | 2003-12-31 | 孟武 | Process for preparing microporous film and its die pressing equipment |
| CN101145672A (en) * | 2006-09-13 | 2008-03-19 | 中国科学院半导体研究所 | Making method for micro-hole vertical cavity radiation laser |
| US10312518B2 (en) * | 2007-10-26 | 2019-06-04 | Murata Manufacturing Co., Ltd. | Anode and method of manufacturing the same, and secondary battery |
| PL2414083T3 (en) * | 2009-03-30 | 2019-06-28 | Toray Industries, Inc. | Microporous membranes, method for making such membranes, and the use of such membranes as battery separator film |
| CN102156292A (en) * | 2011-03-10 | 2011-08-17 | 中国原子能科学研究院 | Method for determining beam current distribution of special irradiation pipeline for single event effect by using nuclear track membrane |
| JP6204036B2 (en) * | 2012-03-16 | 2017-09-27 | 株式会社神戸製鋼所 | Evaluation method of oxide semiconductor thin film and quality control method of oxide semiconductor thin film |
| CN102709062B (en) * | 2012-06-05 | 2016-07-13 | 南昌航空大学 | A kind of encapsulating method of dye-sensitized solar cells |
| CN106178967B (en) * | 2016-06-29 | 2019-01-04 | 中国科学院近代物理研究所 | Nucleopore membranes atmospheric irradiation transmission device |
| CN111208552A (en) * | 2020-03-02 | 2020-05-29 | 中国工程物理研究院流体物理研究所 | Resonance type online beam position detector |
| CN111867227B (en) * | 2020-07-22 | 2022-09-13 | 中国科学院近代物理研究所 | Automatic beam spot calibrating and adjusting device for nuclear track membrane production terminal |
-
2021
- 2021-03-22 CN CN202110305595.1A patent/CN112987077B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102873970A (en) * | 2011-07-15 | 2013-01-16 | 北京强邦科技有限公司 | Preparation method of preservative film |
| CN102908902A (en) * | 2012-07-04 | 2013-02-06 | 毕明光 | Technique for producing nucleopore membranes by miniature particle accelerator |
| CN111716772A (en) * | 2020-06-11 | 2020-09-29 | 中国科学院近代物理研究所 | Nuclear pore membrane automatic production device and method capable of self-adapting beam flow |
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