CN111896993A - Ion ray angular distribution ionization chamber detector - Google Patents
Ion ray angular distribution ionization chamber detector Download PDFInfo
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- CN111896993A CN111896993A CN202010719273.7A CN202010719273A CN111896993A CN 111896993 A CN111896993 A CN 111896993A CN 202010719273 A CN202010719273 A CN 202010719273A CN 111896993 A CN111896993 A CN 111896993A
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- 238000000034 method Methods 0.000 claims abstract description 11
- 238000010884 ion-beam technique Methods 0.000 claims description 8
- 230000003321 amplification Effects 0.000 claims description 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 description 6
- 238000005259 measurement Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
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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
- G01T1/2907—Angle determination; Directional detectors; Telescopes
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Electron Tubes For Measurement (AREA)
Abstract
The invention discloses an ion ray angular distribution ionization chamber detector which comprises a vacuum chamber and a gas ionization chamber provided with an entrance window, wherein the gas ionization chamber is provided with an end face into which a beam enters, the entrance window is sequentially provided with a vacuum film, a supporting grid, an electrode grid and a collecting electrode ring from outside to inside, the center of the end face is provided with a detector, the beam penetrates through the detector from the center of the end face, and part of the beam with the beam cross section subjected to angular distribution enters the gas ionization chamber from the vacuum film outside the center of the end face. Through the mode, the method can be used for detecting the angular distribution condition of the beam current on line in real time under the condition that the beam current transmission is not influenced.
Description
Technical Field
The invention relates to the field of measuring tools, in particular to an ionization chamber detector with ion ray angle distribution.
Background
In the fields of accelerator beam diagnosis and the like, beam quality detection is one of necessary works, in the face of a complex beam environment, beam transmission is not influenced, the quality such as intensity and angle distribution of beam spot position and shape are measured in real time in a lossless mode, but in the actual measurement process, the beam quality is detected only through interception type measurement, and online real-time detection cannot be achieved.
Disclosure of Invention
The invention aims to provide an ion ray angular distribution ionization chamber detector which can detect the angular distribution of a beam current on line in real time under the condition of not influencing beam current transmission.
In order to solve the technical problems, the invention adopts a technical scheme that: the utility model provides an ion ray angle distribution ionization chamber detector, includes the gaseous ionization chamber of real empty room and being equipped with the incident window, the gaseous ionization chamber is equipped with the terminal surface that the beam current got into, the incident window is equipped with vacuum film, support grid, electrode grid and collection electrode ring from outer to interior in proper order, the terminal surface center is equipped with the detector, the beam current passes the detector by the terminal surface center, and the partial beam current that the angle distribution takes place in the beam current cross-section gets into the gaseous ionization chamber by the vacuum film in the terminal surface center outside.
Further, the entrance window is arranged on the periphery of the end face in an annular surrounding mode, and the entrance window extends into the gas ionization chamber.
Further, the gas ionization chamber is filled with working gas, and working high voltage is arranged between the supporting grid and the electric grid and between the collecting electric rings.
Furthermore, in the process that partial beam with the angle distribution of the beam cross section enters a vacuum film and passes through the support grid to reach the electric grade grid, original ionization is formed due to gas ionization, and then the partial beam passes through the corresponding collecting electric grade ring after drift amplification.
Furthermore, signals generated when the partial beam enters the gas ionization chamber are sent to subsequent electronic equipment for reading after signals obtained by collecting electrode rings.
Furthermore, the radius of the collecting electrode ring is set according to the angular distribution of partial beams, and the measurement of the beam angular distribution is achieved by collecting signals of different collecting electrode rings.
Further, the gas ionization chamber is provided with a gas inlet and a gas outlet.
Further, the detector of the gas ionization chamber corresponds to the center of the beam axis of the beam.
Further, the signal generated by the collecting electrode ring is sent to subsequent electronic equipment for reading after the obtained signal passes through a signal leading-out terminal.
The invention has the beneficial effects that: the detector for the ion ray angular distribution ionization chamber can detect the angular distribution of the beam current on line in real time under the condition of not influencing beam current transmission.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of the structure of an ion beam angular distribution ionization chamber detector of the present invention;
1. an end face; 2. a vacuum film; 3. supporting the grid; 4. an electrode grid; 5. collecting the electrode ring; 6. an air inlet; 7. and an air outlet.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention are described in detail below with reference to the accompanying drawings. Examples of these preferred embodiments are illustrated in the accompanying drawings. The embodiments of the invention shown in the drawings and described in accordance with the drawings are exemplary only, and the invention is not limited to these embodiments.
It should be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and/or processing steps closely related to the scheme according to the present invention are shown in the drawings, and other details not so relevant to the present invention are omitted.
Also, in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Referring to fig. 1, an embodiment of the present invention includes: the utility model provides an ion ray angle distribution ionization chamber detector, includes the gaseous ionization chamber of real empty room and being equipped with the incident window, gaseous ionization chamber is equipped with the terminal surface 1 that the beam current got into, the incident window is equipped with vacuum film 2, support grid 3, electrode grid 4 and collection electrode ring 5 from outer to interior in proper order, 1 center of terminal surface is equipped with the detector, the beam current passes the detector by 1 center of terminal surface, and the partial beam current that the angle distribution takes place in the beam current cross-section gets into gaseous ionization chamber by vacuum film 2 outside the 1 center of terminal surface.
Further, the entrance window is arranged around the periphery of the end face 1 in an annular shape, and the entrance window extends into the gas ionization chamber.
Further, the gas ionization chamber is filled with working gas, and working high voltage is provided between the support grid 3 and the electrode grid 4 and between the collecting electrode ring 5.
Furthermore, in the process that partial beam with the angle distribution of the beam cross section enters the vacuum film 2 and passes through the support grid 3 to reach the electric grid 4, original ionization is formed due to gas ionization, and then the partial beam passes through the corresponding collecting electric ring 5 after drift amplification.
Furthermore, the signals generated by the partial beam entering the gas ionization chamber are sent to subsequent electronic equipment for reading after the signals obtained by the collecting electrode ring 5.
Furthermore, the radius of the collecting electrode ring 5 is set according to the angular distribution of partial beams, and the measurement of the beam angular distribution is achieved by signal collection of different collecting electrode rings 5.
Further, the gas ionization chamber is provided with a gas inlet 6 and a gas outlet 7.
Further, the detector of the gas ionization chamber corresponds to the center of the beam axis of the beam.
Further, the signal generated by the collecting electrode ring 5 is sent to subsequent electronic equipment for reading after the obtained signal is sent to a signal leading-out terminal.
The ionization chamber detector with the ion ray angle distribution has the following beneficial effects:
1. the beam angle distribution can be measured on line in real time during beam detection, and the beam real-time non-interception type detection is achieved.
2. The beam quality detection requirements of more beam spot sizes can be met by selecting different end face calibers.
3. The beam current detection angle distribution detection with different precision requirements can be achieved by designing the radius of the collecting electrode ring.
Furthermore, it should be noted that in the present specification, "include" or any other variation thereof is intended to cover a non-exclusive inclusion, so that a process, a method, an article or an apparatus including a series of elements includes not only those elements but also other elements not explicitly listed, or further includes elements inherent to such process, method, article or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should take the description as a whole, and the technical solutions in the embodiments may be appropriately combined to form other embodiments understood by those skilled in the art.
Claims (9)
1. The utility model provides an ion ray angle distribution ionization chamber detector, its characterized in that includes the gaseous ionization chamber of real empty room and being equipped with the incident window, gaseous ionization chamber is equipped with the terminal surface that the beam got into, the incident window is equipped with vacuum film, support grid, electrode grid and collection electrode ring from outer to interior in proper order, the terminal surface center is equipped with the detector, the beam passes the detector by the terminal surface center, and the partial beam that the angle distribution takes place in the beam cross-section gets into gaseous ionization chamber by the vacuum film in the terminal surface center outside.
2. The ion beam angular distribution ionization chamber detector of claim 1, wherein: the entrance window is arranged on the periphery of the end face in an annular surrounding mode, and extends into the gas ionization chamber.
3. The ion beam angular distribution ionization chamber detector of claim 1, wherein: the gas ionization chamber is filled with working gas, and working high voltage is arranged between the supporting grid and the electric grid and between the collecting electric rings.
4. The ion beam angular distribution ionization chamber detector of claim 1, wherein: and in the process that partial beam with the angle distribution in the beam cross section enters a vacuum film and passes through the support grid to reach the electric grade grid, original ionization is formed due to gas ionization, and then the original ionization passes through the corresponding collecting electric grade ring after drift amplification.
5. The ion beam angular distribution ionization chamber detector of claim 1, wherein: and signals generated when the partial beam enters the gas ionization chamber are sent to subsequent electronic equipment for reading after signals obtained by the collecting electrode ring.
6. The ion beam angular distribution ionization chamber detector of claim 1, wherein: the radius of the collecting electrode rings is set according to the angular distribution of partial beams, and the beam angular distribution is measured by collecting signals of different collecting electrode rings.
7. The ion beam angular distribution ionization chamber detector of claim 1, wherein: the gas ionization chamber is provided with a gas inlet and a gas outlet.
8. The ion beam angular distribution ionization chamber detector of claim 1, wherein: the detector of the gas ionization chamber corresponds to the center of the beam axis of the beam.
9. The ion ray angular distribution ionization chamber detector of claim 5, wherein: and the signal generated by the collecting electrode ring is sent to subsequent electronic equipment for reading after the obtained signal is sent to a signal leading-out terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010719273.7A CN111896993A (en) | 2020-07-23 | 2020-07-23 | Ion ray angular distribution ionization chamber detector |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010719273.7A CN111896993A (en) | 2020-07-23 | 2020-07-23 | Ion ray angular distribution ionization chamber detector |
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| CN111896993A true CN111896993A (en) | 2020-11-06 |
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| CN202010719273.7A Pending CN111896993A (en) | 2020-07-23 | 2020-07-23 | Ion ray angular distribution ionization chamber detector |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3293429A (en) * | 1961-09-07 | 1966-12-20 | Csf | Apparatus for detection and intensity measurement of high energy charged particle beams |
| GB1154415A (en) * | 1967-07-19 | 1969-06-11 | Oberspree Kabelwerke Veb K | Method of and Apparatus for the Continuous, Contactless and Non-Destructive Diameter Inspection of Elongated Structures |
| SU1637576A1 (en) * | 1989-08-09 | 1996-02-20 | Научно-исследовательский институт интроскопии Томского политехнического института им.С.М.Кирова | Device for irradiating with accelerated electrons |
| CN1180922A (en) * | 1996-10-24 | 1998-05-06 | 西门子医疗系统公司 | Ionization chamber having off-passageway measuring electrodes |
| CN105738940A (en) * | 2016-04-26 | 2016-07-06 | 西北核技术研究所 | Detector for online measurement of beam profile uniformity |
| CN208284452U (en) * | 2018-06-29 | 2018-12-25 | 天津敬慎坊科技有限公司 | A kind of divergent beams ionisation chamber |
| CN109893777A (en) * | 2019-02-26 | 2019-06-18 | 中国原子能科学研究院 | Phase detector and proton beam phase stabilization device comprising the phase detector |
| CN110677976A (en) * | 2019-11-16 | 2020-01-10 | 中国原子能科学研究院 | Cavity structure for picking up beam phase signals based on inductance probe |
| CN111282161A (en) * | 2020-02-28 | 2020-06-16 | 合肥中科离子医学技术装备有限公司 | Beam diagnosis system of proton treatment device |
-
2020
- 2020-07-23 CN CN202010719273.7A patent/CN111896993A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3293429A (en) * | 1961-09-07 | 1966-12-20 | Csf | Apparatus for detection and intensity measurement of high energy charged particle beams |
| GB1154415A (en) * | 1967-07-19 | 1969-06-11 | Oberspree Kabelwerke Veb K | Method of and Apparatus for the Continuous, Contactless and Non-Destructive Diameter Inspection of Elongated Structures |
| SU1637576A1 (en) * | 1989-08-09 | 1996-02-20 | Научно-исследовательский институт интроскопии Томского политехнического института им.С.М.Кирова | Device for irradiating with accelerated electrons |
| CN1180922A (en) * | 1996-10-24 | 1998-05-06 | 西门子医疗系统公司 | Ionization chamber having off-passageway measuring electrodes |
| CN105738940A (en) * | 2016-04-26 | 2016-07-06 | 西北核技术研究所 | Detector for online measurement of beam profile uniformity |
| CN208284452U (en) * | 2018-06-29 | 2018-12-25 | 天津敬慎坊科技有限公司 | A kind of divergent beams ionisation chamber |
| CN109893777A (en) * | 2019-02-26 | 2019-06-18 | 中国原子能科学研究院 | Phase detector and proton beam phase stabilization device comprising the phase detector |
| CN110677976A (en) * | 2019-11-16 | 2020-01-10 | 中国原子能科学研究院 | Cavity structure for picking up beam phase signals based on inductance probe |
| CN111282161A (en) * | 2020-02-28 | 2020-06-16 | 合肥中科离子医学技术装备有限公司 | Beam diagnosis system of proton treatment device |
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Application publication date: 20201106 |