CN210775858U - Cake-type mica window cover leather counter - Google Patents
Cake-type mica window cover leather counter Download PDFInfo
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- CN210775858U CN210775858U CN201920741112.0U CN201920741112U CN210775858U CN 210775858 U CN210775858 U CN 210775858U CN 201920741112 U CN201920741112 U CN 201920741112U CN 210775858 U CN210775858 U CN 210775858U
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Abstract
The utility model discloses a cake formula mica window lid leather counter, it includes cake formula negative pole, anode wire, ceramic member, mica sheet, anode wire and ceramic member set up together, the ceramic member sets up on cake formula negative pole, the mica sheet covers in cake formula negative pole upper end. The beneficial effects of the utility model reside in that: the anode wire adopts a double-ring structure, the structure is simple to process and manufacture, the electric field between the anode wire and the cathode shell is uniform in the working process of the Geiger counter, and the working stability of a device is ensured. The mica sheet is coated with a graphite or graphene coating, so that the light shielding effect is achieved, the influence of light on the Geiger counter is reduced, and an electric field can be formed between the anode wire and the mica sheet due to the conductive effect of the graphite or graphene, so that the sensitivity of the detector can be improved.
Description
Technical Field
The utility model belongs to a gaseous type nuclear radiation detector, concretely relates to cake formula mica window lid leather counter, it can be used to measure ionizing radiation's detector.
Background
The geiger counter is a gas ionization detector invented in 1928 by h. geiger and p. miller, also known as geiger-miller counter, abbreviated as G-M counter, and we commonly called it "geiger counter". The Geiger counter has the main advantages of high sensitivity and large pulse amplitude; the main disadvantage is that the energy of the particles and the type of the particles cannot be identified and fast counting cannot be performed. The Geiger counter is mainly used in various thickness meters, flaw detectors, densitometers and other instruments at present. Most of the existing Geiger counters use an inflatable tube or a small chamber as a probe, when the voltage applied to the probe reaches a certain range, every time the ray is ionized in the tube, a pair of ions are generated, an electric pulse with the same size can be amplified and generated and recorded by a connected electronic device, the number of rays in unit time is measured, the existence and strength of radioactive particles are difficult to detect qualitatively and quantitatively, and the existing counters have larger overall power consumption, incomplete functions and inconvenient use and operation.
The utility model provides a mica window leather counter of cake formula structure of great area detection window, adopt ceramic structure installation fixed anode wire, anode wire adopt simple workable dicyclo structure, guarantee the electric field homogeneity between anode wire and the negative pole shell to coated one deck graphite or graphite alkene layer on the mica window, under the prerequisite that does not influence detection efficiency, switched on with the negative pole shell, also produced the electric field between messenger mica window and the anode wire, improved detection sensitivity.
Disclosure of Invention
The utility model aims at a cake formula mica window lid leather counter, it can detect low energy gamma ray, β ray and α ray, can detectivity simultaneously.
The technical scheme of the utility model as follows: a pie-shaped mica window cover leather counter comprises a pie-shaped cathode, an anode wire, a ceramic piece and a mica sheet, wherein the anode wire and the ceramic piece are arranged together, the ceramic piece is arranged on the pie-shaped cathode, and the mica sheet is covered on the pie-shaped cathode.
The cake-type cathode is of a hollow cylindrical structure, one side of the cake-type cathode is closed, the other side of the cake-type cathode is open, a connecting piece is arranged on the circumference of the cylindrical structure and is composed of three cylinders with decreasing radiuses, and the first cylinder, connected with the cake-type cathode, of the connecting piece is of a hollow structure.
The anode wire is of a double-ring structure, the center of the anode wire is provided with a circle, two concentric circle structures are arranged outside the center circle, and the three circles are connected together through a connecting rod.
The ceramic part is of a cylindrical structure, a central through hole is formed in the cylinder, a circular boss is further arranged on the cylinder, and the ceramic part is used for isolating a cake-shaped cathode and an anode wire of the counter and plays an insulating role.
The anode wire is arranged in a through hole of the ceramic part and is sealed by low-melting-point glass powder, the ceramic part is fixed in a first hollow cylinder of the connecting piece of the pie-shaped cathode by the low-melting-point glass powder, and the connecting rod of the anode wire is inserted into a second cylinder of the connecting piece.
The ceramic part is made of a high-temperature-resistant insulating ceramic material, can isolate the cathode and the anode of the Geiger counter and can resist baking at 350 ℃ in the production process.
The mica sheet is of a sheet-like structure, the surface of the mica sheet is a detection surface of the Geiger counter, and the thickness of the mica sheet is 8-15 mu m, so that the Geiger counter can measure low-energy X rays, low-energy β rays and α rays.
The mica sheet is coated with a layer of graphite or graphene coating.
The working gas in the cake-type mica window cover leather counter is a mixed gas of neon and bromine.
The volume ratio of the bromine to the neon mixed gas is 1: 70-80.
The beneficial effects of the utility model reside in that: the anode wire adopts a double-ring structure, the structure is simple to process and manufacture, the electric field between the anode wire and the cathode shell is uniform in the working process of the Geiger counter, and the working stability of a device is ensured. The mica sheet is coated with a graphite or graphene coating, so that the light shielding effect is achieved, the influence of light on the Geiger counter is reduced, and an electric field can be formed between the anode wire and the mica sheet due to the conductive effect of the graphite or graphene, so that the sensitivity of the detector can be improved.
Drawings
FIG. 1 is a half-sectional view of a pie mica window cover leather counter provided by the present invention;
fig. 2 is a schematic diagram of an anode wire in a pie mica window cover leather counter provided by the present invention;
fig. 3 is a schematic view of a ceramic part in the pie mica window cover leather counter provided by the present invention.
In the figure: 1 cake type cathode, 2 anode wires, 3 ceramic parts, 4 mica sheets and 5 connecting parts.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in figure 1, the pie mica window leather counter comprises a pie cathode 1, an anode wire 2, a ceramic piece 3 and a mica sheet 4. The cake-type cathode 1 is of a hollow cylindrical structure, one side of the cake-type cathode is closed, the other side of the cake-type cathode is open, a connecting piece 5 is further arranged on the circumference of the cylindrical structure, the connecting piece 5 and the cake-type cathode 1 are of an integrated structure, the connecting piece 5 is formed by three cylinders with gradually decreased radiuses, and the first cylinder, connected with the cake-type cathode 1, of the connecting piece 5 is of a hollow structure.
As shown in fig. 2, the anode wire 2 is a double-ring structure, the center of the anode wire 2 has a circle, two concentric circles are arranged outside the center circle, and the three circles are connected together through a connecting rod.
As shown in fig. 3, the ceramic member 3 is a cylindrical structure, the cylinder has a central through hole, the cylinder is further provided with an annular boss, and the ceramic member 3 is used for isolating the cake-shaped cathode 1 and the anode wire 2 of the counter, thereby playing an insulating role. The ceramic part 3 is made of a high-temperature-resistant insulating ceramic material, can isolate the cathode and the anode of the Geiger counter and can resist baking at 350 ℃ in the production process.
As shown in fig. 1, the anode wire 2 is integrally disposed at the center of the pie-shaped cathode 1, and the connection rod of the anode wire 2 passes through the through-hole of the ceramic member 3 and is sealed together using low-melting glass frit, thereby securing its position. The ceramic member 3 is fixed into a first hollow cylinder of the connecting member 5 of the cathode 1 of the pancake type using a low melting point glass frit, and the connecting rod of the anode wire 2 is inserted into a second cylinder of the connecting member 5.
The mica sheet 4 covers one side of the open part of the cake cathode 1. The pancake cathodes 1 are mainly used for supporting in the whole structure.
Mica sheet 4 is sheet-like structure, the face at mica sheet 4 place is the detection face of geiger counter, mica sheet 4 is extremely thin, thickness is between 8 ~ 15 mu m, make the geiger counter can measure low energy X ray, low energy β ray and α ray coating graphite or graphene coating on the mica sheet 4, play the light-resistant effect, reduce the influence of light to the geiger counter, and because graphite or graphite alkene have the electrically conductive effect, also can form the electric field between positive pole silk 2 and mica sheet 4, can improve the sensitivity of detector.
The working gas in the pie mica window cover leather counter (namely in the space formed between the pie cathode 1 and the mica sheet 4) is a mixed gas of bromine and neon, and the volume ratio of the two gases is recommended to be 1 (70-80).
Claims (8)
1. A cake mica window cover leather counter which is characterized in that: the anode wire comprises a cake-shaped cathode (1), an anode wire (2), a ceramic part (3) and a mica sheet (4), wherein the anode wire (2) and the ceramic part (3) are arranged together, the ceramic part (3) is arranged on the cake-shaped cathode (1), and the mica sheet (4) covers the cake-shaped cathode (1).
2. A mica pie window cover leather counter according to claim 1, wherein: cake formula negative pole (1) be hollow cylinder structure, its one side is sealed, and the opposite side is opened, is provided with connecting piece (5) in the circumference department of cylinder structure, and connecting piece (5) are the cylinder constitution that three radiuses degressive, and the first cylinder that connecting piece (5) and cake formula negative pole (1) are connected is hollow structure.
3. A mica pie window cover leather counter according to claim 1, wherein: the anode wire (2) is of a double-ring structure, the center of the anode wire (2) is provided with a circle, two concentric circle structures are arranged outside the center circle, and the three circles are connected together through a connecting rod.
4. A mica pie window leather counter according to any of claims 1 to 3, wherein: the ceramic piece (3) is of a cylindrical structure, a central through hole is formed in the cylinder, a circular boss is further arranged on the cylinder, and the ceramic piece (3) is used for isolating a cake-shaped cathode (1) and an anode wire (2) of the counter and plays an insulating role.
5. A mica pie window leather counter according to claim 4, wherein: the anode wire (2) is arranged in a through hole of the ceramic piece (3) and is sealed by low-melting-point glass powder, the ceramic piece (3) is fixed in a first hollow cylinder of the connecting piece (5) of the cake-type cathode (1) by the low-melting-point glass powder, and a connecting rod of the anode wire (2) is inserted into a second cylinder of the connecting piece (5).
6. A mica pie window leather counter according to any of claims 1, 2, 3 or 5 wherein: the ceramic part (3) is made of a high-temperature-resistant insulating ceramic material, can isolate the cathode and the anode of the Geiger counter and can resist baking at 350 ℃ in the production process.
7. The mica window Geiger counter of any one of claims 1, 2, 3 or 5, wherein the mica sheet (4) is of a sheet-like structure, the surface of the mica sheet (4) is the detection surface of the Geiger counter, and the thickness of the mica sheet (4) is 8-15 μm, so that the Geiger counter can measure low-energy X-rays, low-energy β rays and α rays.
8. The mica pie window cover leather counter of claim 7, wherein: and a graphite or graphene coating is coated on the mica sheet (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920741112.0U CN210775858U (en) | 2019-05-22 | 2019-05-22 | Cake-type mica window cover leather counter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920741112.0U CN210775858U (en) | 2019-05-22 | 2019-05-22 | Cake-type mica window cover leather counter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210775858U true CN210775858U (en) | 2020-06-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920741112.0U Active CN210775858U (en) | 2019-05-22 | 2019-05-22 | Cake-type mica window cover leather counter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210775858U (en) |
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2019
- 2019-05-22 CN CN201920741112.0U patent/CN210775858U/en active Active
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