CN108152853B - Counter tube energy compensation device - Google Patents
Counter tube energy compensation device Download PDFInfo
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- CN108152853B CN108152853B CN201810190558.9A CN201810190558A CN108152853B CN 108152853 B CN108152853 B CN 108152853B CN 201810190558 A CN201810190558 A CN 201810190558A CN 108152853 B CN108152853 B CN 108152853B
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- compensation layer
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- compensation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T7/00—Details of radiation-measuring instruments
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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
- G01T1/16—Measuring radiation intensity
- G01T1/18—Measuring radiation intensity with counting-tube arrangements, e.g. with Geiger counters
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- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
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- Spectroscopy & Molecular Physics (AREA)
- Measurement Of Radiation (AREA)
Abstract
本发明涉及技计数管技术领域，尤其是涉及一种计数管能量补偿装置。计数管能量补偿装置包括：管体、第一补偿层和第二补偿层；所述第一补偿层可拆卸地设置在所述管体的端面，所述第二补偿层设置在所述管体的侧壁上，所述第一补偿层上设置有用于待测射线穿过的开孔。以缓解现有技术中存在的端窗式盖革计数管测量辐射时由于低能射线下的“过响应”现象导致测量误差很大的技术问题。
The present invention relates to the technical field of counter tubes, and in particular to a counter tube energy compensation device. The counter tube energy compensation device comprises: a tube body, a first compensation layer and a second compensation layer; the first compensation layer is detachably arranged on the end face of the tube body, the second compensation layer is arranged on the side wall of the tube body, and the first compensation layer is provided with an opening for the rays to be measured to pass through. This is to alleviate the technical problem in the prior art that when an end window type Geiger counter tube measures radiation, the "over-response" phenomenon under low-energy rays causes a large measurement error.
Description
Technical Field
The invention relates to the technical field of counter tubes, in particular to an energy compensation device of a counter tube.
Background
Geiger-counting tubes are a type of gas radiation detector operating in the geiger-mueller region, in which uncharged radiation particles, such as gamma rays, interact with the constituent materials of the tube to generate secondary electrons which enter the sensitive volume (i.e., in the region of the high voltage electric field) and are accelerated and collide with gas molecules in that region to produce an avalanche effect, forming more charge and presenting a corresponding pulse on the external circuit. In addition, if the detected particles are charged particles (such as alpha and beta radiation), the particles can directly enter the sensitive volume of the Geiger counter tube, and avalanche discharge is caused under the action of a strong electric field to generate counting. According to the types of detected particles, the geiger counter tube can be divided into an alpha type geiger tube, a beta type geiger tube and a gamma type geiger tube, and the three types of radiation can be measured by the geiger counter tube. Since alpha and beta particles are easily blocked by substances, geiger-counting tubes for measuring such particles require a relatively thin entrance window, the material of which typically consists of a relatively less dense material such as mica flakes. Such geiger-counter tubes with an entrance window are often referred to as end window geiger-counter tubes, sometimes abbreviated as end window G-M-counter tubes. Because the end window type geiger counter tube is complex in composition materials, the end window type geiger counter tube is generally composed of end face mica and side face metal materials, and effective energy compensation is difficult. The end window type geiger counter tube on the market generally does not perform energy compensation at present, so that the end window type geiger counter tube without the energy compensation device can cause great measurement error due to the phenomenon of over response under low-energy rays when measuring radiation.
Therefore, how to solve the problem that the end window type geiger counter tube has a great measurement error caused by the phenomenon of over response under low-energy rays when measuring radiation is urgent to be solved by the person skilled in the art.
Disclosure of Invention
The invention aims to provide a counter tube energy compensation device so as to solve the technical problem that the measuring error is large due to the phenomenon of over response under low-energy rays when an end window type geiger counter tube measures radiation in the prior art.
The invention provides a counting tube energy compensation device, which comprises: the pipe body, the first compensation layer and the second compensation layer;
The first compensation layer is detachably arranged on the end face of the pipe body, the second compensation layer is arranged on the side wall of the pipe body, and an opening for the rays to be measured to pass through is formed in the first compensation layer.
Further, the plurality of holes are formed.
Further, the first compensation layer comprises a main board body and a side board body;
The side plate body is arranged at the edge of the main plate body, the opening is arranged on the main plate body, and a first connecting part used for being connected with the side wall of the pipe body is arranged on the inner side of the side plate body.
Further, the pipe body comprises a main pipe and an end window;
the main pipe is characterized in that one end of the main pipe is opened, the end window is fixedly arranged at the opening end of the main pipe, one end of the main pipe, which is close to the opening end, is provided with a second connecting part matched with the first connecting part, the second compensating layer is arranged on the outer side wall of the main pipe, and a gap exists between the second compensating layer and the second connecting part.
Further, an annular protrusion is further arranged on the main pipe, and the annular protrusion is arranged between the second compensation layer and the second connecting portion.
Further, the first connecting portion is of an external thread structure, and the second connecting portion is of an internal thread structure.
Further, the first compensation layer and the second compensation layer are made of aluminum alloy.
Further, the thickness of the first compensation layer and the second compensation layer is 0.3-2mm.
Further, an exhaust pipe and an energizing pipe are arranged at one end of the main pipe away from the opening end.
Further, the second compensation layer is provided with a plurality of through holes.
The invention provides a counting tube energy compensation device, which comprises: the pipe body, the first compensation layer and the second compensation layer; the first compensation layer is detachably arranged on the end face of the pipe body, the second compensation layer is arranged on the side wall of the pipe body, and an opening for the rays to be measured to pass through is formed in the first compensation layer. By adopting the scheme, the end face and the side face of the tube body are respectively provided with the first compensation layer and the second compensation layer, and when alpha beta radiation particles are measured, the first compensation layer is separated from the tube body, so that the energy response problem of gamma radiation particles is not concerned; and when gamma is measured, the first compensation layer is arranged on the end face of the pipe body, and the end window type geiger pipe is in an omnibearing compensation state. The energy compensation sleeve in the energy compensation mode can greatly reduce the energy response error of the low energy region gamma, does not influence the gamma response of other energy, and greatly improves the measurement accuracy. The technical problem that the measuring error is large due to the phenomenon of over response under low-energy rays when the end window type geiger counter tube in the prior art measures radiation is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a perspective view of a first embodiment of a counter energy compensating device according to an embodiment of the present invention;
FIG. 2 is a perspective view of a second embodiment of a counter energy compensating device according to an embodiment of the present invention;
FIG. 3 is a schematic side view of a counter energy compensation device according to an embodiment of the present invention;
fig. 4 is a top view of a first embodiment of the counter energy compensation means provided in fig. 1.
Icon: 100-tube body; 200-a first compensation layer; 300-a second compensation layer; 110-annular protrusion; 120-exhaust pipe; 130-energizing the tube; 210-opening holes.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that, if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are used, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, only for convenience of describing the present invention and simplifying the description, and does not indicate or imply that the indicated apparatus or element must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like, as used herein, are used for descriptive purposes only and are not to be construed as indicating or implying any relative importance.
In the description of the present invention, it should be noted that unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
FIG. 1 is a perspective view of a first embodiment of a counter energy compensating device according to an embodiment of the present invention;
FIG. 2 is a perspective view of a second embodiment of a counter energy compensating device according to an embodiment of the present invention;
FIG. 3 is a schematic side view of a counter energy compensation device according to an embodiment of the present invention;
fig. 4 is a top view of a first embodiment of the counter energy compensation means provided in fig. 1.
As shown in fig. 1 to 4, the present invention provides a counter energy compensation device, which includes: a pipe body 100, a first compensation layer 200, and a second compensation layer 300;
The first compensation layer 200 is detachably disposed on the end face of the pipe body 100, the second compensation layer 300 is disposed on the side wall of the pipe body 100, and an opening 210 for the radiation to be measured to pass through is disposed on the first compensation layer 200.
The shape of the opening may be various, for example: round, rectangular, diamond or trapezoidal.
The second compensation layer 300 may be provided on the sidewall of the tube body 100 by means of a snap-fit or adhesive.
The invention provides a counting tube energy compensation device, which comprises: a pipe body 100, a first compensation layer 200, and a second compensation layer 300; the first compensation layer 200 is detachably disposed on the end face of the pipe body 100, the second compensation layer 300 is disposed on the side wall of the pipe body 100, and an opening 210 for the radiation to be measured to pass through is disposed on the first compensation layer 200. By adopting the scheme, the first compensation layer 200 and the second compensation layer 300 are respectively arranged on the end face and the side face of the pipe body 100, and when alpha beta radiation particles are measured, the first compensation layer 200 is separated from the pipe body 100, so that the problem of energy response of gamma radiation particles is not concerned; when gamma is measured, the first compensation layer 200 is installed on the end face of the pipe body 100, and the end window type geiger pipe at this time is in an omnibearing compensation state. The energy compensation sleeve in the energy compensation mode can greatly reduce the energy response error of the low energy region gamma, does not influence the gamma response of other energy, and greatly improves the measurement accuracy. The technical problem that the measuring error is large due to the phenomenon of over response under low-energy rays when the end window type geiger counter tube in the prior art measures radiation is solved.
Further, the number of the openings 210 is plural based on the above embodiment.
The number of the openings 210 may be one, and when the number of the openings 210 is one, the openings 210 are disposed in the center of the first compensation layer 200.
In this embodiment, the plurality of openings 210 are provided, the plurality of openings 210 can be uniformly distributed on the first compensation layer 200, one opening 210 can be further provided at the center of the first compensation layer 200, the remaining openings 210 are uniformly distributed with the openings 210 provided at the center, and the arrangement of the openings 210 can ensure that the energy response error of the low energy region γ can be greatly reduced and the γ response of other energy is not affected when detecting γ rays.
Further, on the basis of the above embodiment, the first compensation layer 200 includes a main board body and a side board body;
the side plate body is arranged at the edge of the main plate body, the opening 210 is arranged on the main plate body, and a first connecting part used for being connected with the side wall of the pipe body 100 is arranged on the inner side of the side plate body.
The side plate body and the main plate body can be vertically arranged, and other angles can be formed between the side plate body and the main plate body, so long as the side plate body can be detachably connected with the pipe body 100.
The first connecting portion may include a plurality of connecting holes, a plurality of grooves or vias are formed on a side wall of the pipe body 100 at one end of the pipe body 100 near the first connecting portion, and the first connecting portion is detachably connected to the pipe body 100 through a rod body or a sealing plug.
In this embodiment, through the detachable connection between the first connection portion on the side plate body and the side wall of the tube body 100, the opening 210 is disposed on the main plate body, so when measuring different kinds of rays as required, the main plate body can be conveniently taken down or mounted on the tube body 100 to ensure the accuracy of the measurement result.
Further, on the basis of the above embodiment, the pipe body 100 includes a main pipe and an end window;
the main pipe is characterized in that one end of the main pipe is opened, the end window is fixedly arranged at the opening end of the main pipe, one end of the main pipe, which is close to the opening end, is provided with a second connecting part matched with the first connecting part, the second compensation layer 300 is arranged on the outer side wall of the main pipe, and a gap exists between the second compensation layer 300 and the second connecting part.
Wherein, the end window is fixed to be set up in the one end.
In this embodiment, the first compensation layer 200 is disposed on a side close to the end window, and a second connection portion matched with the first connection portion is further disposed on a side close to the end window of the main pipe, and the first connection portion and the second connection portion are matched and connected to enable the first compensation layer 200 to be detachably disposed on the main pipe.
Further, on the basis of the above embodiment, an annular protrusion 110 is further provided on the main pipe, and the annular protrusion 110 is disposed between the second compensation layer 300 and the second connection portion.
In this embodiment, the main pipe is further provided with an annular protrusion 110, and the annular protrusion 110 is disposed between the second compensation layer 300 and the second connection portion, so that when the second compensation layer 300 is installed on the main pipe, the installation can be directly performed according to the position of the annular protrusion 110, and the surface area of the annular protrusion 110 is fixed, so that the response of a part of energy radiation particles is improved, so that the response is not blocked or attenuated.
On the basis of the above embodiment, further, the first connecting portion is an external thread structure, and the second connecting portion is an internal thread structure.
In this embodiment, the first connection portion and the second connection portion are respectively an internal thread structure and an external thread structure, so that the first compensation layer 200 and the pipe body 100 are detachably connected through cooperation between the internal thread structure and the external thread structure, so as to ensure that different types of cameras can be effectively compensated.
Further, in the above embodiment, the materials of the first compensation layer 200 and the second compensation layer 300 are aluminum alloys.
Further, the thickness of the first compensation layer 200 and the second compensation layer 300 is 0.3-2mm.
In this embodiment, because the aluminum alloy has low density, but has high strength, is close to or exceeds that of high-quality steel, has good plasticity, can be processed into various profiles, and has excellent electrical conductivity, thermal conductivity and corrosion resistance, the first compensation layer 200 and the second compensation layer 300 are made of aluminum alloy materials, so that the overall performance is ensured.
Further, on the basis of the above embodiment, the main pipe is provided with the exhaust pipe 120 and the energizing pipe 130 at an end remote from the open end.
In this embodiment, the exhaust pipe 120 and the energizing pipe 130 are provided at one end of the main pipe away from the open end, and the exhaust pipe 120 and the energizing pipe 130 are both extended toward one end away from the main pipe, the arrangement of the exhaust pipe 120 and the energizing pipe 130 being used to ensure continuous and stable operation of the overall apparatus.
Further, on the basis of the above embodiment, the second compensation layer 300 is provided with a plurality of through holes.
The plurality of through holes may be uniformly distributed on the second compensation layer 300, and the shapes of the plurality of through holes may be different, so long as the total area of the plurality of through holes can be ensured to be fixed at a value.
In this embodiment, a plurality of through holes may be disposed on the second compensation layer 300, and the plurality of through holes may be uniformly arranged along the side surface of the second compensation layer 300, so that a part of the surface of the main pipe is left without being wrapped by a compensation material, which is beneficial to improving the response of a part of energy radiation particles so as not to be blocked and attenuated.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (7)
1. A counter energy compensating device for an end window geiger counter, comprising: the pipe body, the first compensation layer and the second compensation layer;
The first compensation layer is detachably arranged on the end face of the pipe body, the second compensation layer is arranged on the side wall of the pipe body, an opening for the ray to be measured to pass through is arranged on the first compensation layer,
The second compensation layer is provided with a plurality of through holes,
The first compensation layer comprises a main board body and a side board body,
The side plate body is arranged at the edge of the main plate body, the opening is arranged on the main plate body, the inner side of the side plate body is provided with a first connecting part used for being connected with the side wall of the pipe body,
The pipe body comprises a main pipe and an end window,
The main pipe is characterized in that one end of the main pipe is opened, the end window is fixedly arranged at the opening end of the main pipe, one end of the main pipe, which is close to the opening end, is provided with a second connecting part matched with the first connecting part, the second compensating layer is arranged on the outer side wall of the main pipe, and a gap exists between the second compensating layer and the second connecting part.
2. The counter energy compensating apparatus of claim 1 wherein said apertures are a plurality.
3. The counter tube energy compensator of claim 1, wherein the main tube is further provided with an annular protrusion, the annular protrusion being disposed between the second compensator layer and the second connector portion.
4. A counter energy compensating device according to claim 3, wherein said first connection portion is an external thread configuration and said second connection portion is an internal thread configuration.
5. The counter energy compensation arrangement of claim 1, wherein the first compensation layer and the second compensation layer are aluminum alloys.
6. The counter energy compensation arrangement of claim 5, wherein said first compensation layer and said second compensation layer have a thickness of 0.3-2mm.
7. A counter tube energy compensating device as claimed in claim 3, wherein the end of said main tube remote from said open end is provided with an exhaust tube and an energizing tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810190558.9A CN108152853B (en) | 2018-03-08 | 2018-03-08 | Counter tube energy compensation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810190558.9A CN108152853B (en) | 2018-03-08 | 2018-03-08 | Counter tube energy compensation device |
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| CN108152853A CN108152853A (en) | 2018-06-12 |
| CN108152853B true CN108152853B (en) | 2024-11-15 |
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| CN201810190558.9A Active CN108152853B (en) | 2018-03-08 | 2018-03-08 | Counter tube energy compensation device |
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Citations (4)
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| DE2329247A1 (en) * | 1973-06-08 | 1975-01-02 | Krohne Fa Ludwig | Dust measuring device - measures absorption of a radioactive radiation by a geiger counter |
| JPH0361883A (en) * | 1989-07-31 | 1991-03-18 | Aloka Co Ltd | Dose-equivalent measuring apparatus |
| CN104516022A (en) * | 2013-09-26 | 2015-04-15 | 中国辐射防护研究院 | Method for compensating neutron energy response of <3>He proportional counter through aluminum-lithium alloy |
| CN207867043U (en) * | 2018-03-08 | 2018-09-14 | 北京聚合信机电有限公司 | Counting tube energy compensation system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2815529B2 (en) * | 1993-09-30 | 1998-10-27 | 東芝硝子株式会社 | Fluorescent glass dosimeter |
| JP2005024475A (en) * | 2003-07-01 | 2005-01-27 | Natl Inst Of Radiological Sciences | Range compensation device and heavy charged particle beam irradiation device |
| CN102955165A (en) * | 2011-08-19 | 2013-03-06 | 中国辐射防护研究院 | Method for compensating X and gamma energy response of ionization chamber by aluminum material |
| CN204204794U (en) * | 2014-10-29 | 2015-03-11 | 中国原子能科学研究院 | A kind of standard type high-pressure ionization chamber |
| CN107340533B (en) * | 2017-07-07 | 2019-05-07 | 西北核技术研究所 | 3He sandwich spectrometer proportional detector output amplitude compensation method and device |
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2018
- 2018-03-08 CN CN201810190558.9A patent/CN108152853B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2329247A1 (en) * | 1973-06-08 | 1975-01-02 | Krohne Fa Ludwig | Dust measuring device - measures absorption of a radioactive radiation by a geiger counter |
| JPH0361883A (en) * | 1989-07-31 | 1991-03-18 | Aloka Co Ltd | Dose-equivalent measuring apparatus |
| CN104516022A (en) * | 2013-09-26 | 2015-04-15 | 中国辐射防护研究院 | Method for compensating neutron energy response of <3>He proportional counter through aluminum-lithium alloy |
| CN207867043U (en) * | 2018-03-08 | 2018-09-14 | 北京聚合信机电有限公司 | Counting tube energy compensation system |
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| CN108152853A (en) | 2018-06-12 |
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