CN106772547B - Preparation method of center detector in neutrino detection device - Google Patents
Preparation method of center detector in neutrino detection device Download PDFInfo
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- CN106772547B CN106772547B CN201611255385.1A CN201611255385A CN106772547B CN 106772547 B CN106772547 B CN 106772547B CN 201611255385 A CN201611255385 A CN 201611255385A CN 106772547 B CN106772547 B CN 106772547B
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- organic glass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T3/00—Measuring neutron radiation
- G01T3/008—Measuring neutron radiation using an ionisation chamber filled with a gas, liquid or solid, e.g. frozen liquid, dielectric
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Abstract
One end of a stay bar is hinged with an external reticulated shell, and the other end of the stay bar is provided with more than or equal to 3 stay bar branches which are welded or fixedly connected with the stay bar in a hinged manner; the supporting branch is inserted into the ball seat, and the ball seat is arranged on the rubber pad attached to the organic glass. The beneficial effects are that: the technical defects that the prestress of the organic glass in the internal structure is large and concentrated when the internal structure of the central detector is manufactured by the traditional technology are overcome; the center detector manufactured by the method effectively increases the redundancy of the structure, so that when a single stay bar is damaged, the whole structure cannot be immediately invalid, the collapse resistance is improved, the continuous collapse can be prevented, and the potential safety hazard is reduced; the center detector manufactured by the method has the characteristics of long service life and simple manufacture.
Description
Technical Field
The application belongs to the technology of detection equipment in the field of neuter detection, and particularly relates to a preparation method of a center detector in a neuter detection device.
Background
The most basic particles in the world of matter are 12, including 6 quarks, 3 stippled light photons and 3 medium photons. A neutrino is a particle that is so penetrating that it can easily pass through the earth without leaving any marks. It is therefore extremely difficult to detect and is a "ghost" particle by the scientific community.
At present, countries in the world are subjected to more and more intensive research in the field of neutrino detection. The center detector is a core component of a neutrino experiment and is used for capturing neutrinos generated by a nuclear reactor, the overall shape of the center detector is spherical, and the center detector is fixed at the bottom or the side surface of a pool through a certain supporting mode.
The center detector is wholly divided into an inner layer structure and an outer layer structure, the inner layer structure and the outer layer structure are connected through a supporting rod, one end of the supporting rod is hinged to the outer layer structure, the other end of the supporting rod is arranged on the outer surface of the inner layer structure, and a rubber pad is arranged between the supporting rod and an organic glass spherical shell of the inner layer structure. The outer layer structure is a stainless steel net shell, the inner layer structure is an organic glass ball shell, liquid flash is contained in the organic glass ball shell, the density of the liquid flash is that PMTs (photomultiplier tube, photomultiplier tubes) for collecting optical signals are densely distributed on the outer layer structure of the center detector, and the outer layer structure is used as a support carrier of the PMTs and also provides support for the inner layer organic glass balls.
Because the inner layer structure and the outer layer structure and the water tank are both provided with shielding liquid ultrapure water, the inner layer structure is provided with liquid flash with the density, and the liquid flash and the ultrapure water have different densities to generate pressure difference, the detector can generate integral upward buoyancy under the running state. Therefore, the organic glass in the whole detector structure bears certain stress, the largest stress of the organic glass occurs at the node of the stay bar, and the stress of the organic glass is closely related to the axial force of the stay bar. If the plexiglas breaks during use, liquid flashes out and the entire detector structure fails, resulting in experimental failure.
In the structural indexes of the central detector, the axial force of the supporting rod is an important control index, so that the structural rigidity is ensured, the axial force of the supporting rod is reduced, and the safety of the reticulated shell organic glass node is improved. The object of the present application is to find a method or structural design that increases the safety of plexiglass nodes.
Disclosure of Invention
Aiming at the defects of the prior art, the application provides a preparation method of a center detector in a neuter detection device, and the center detector manufactured by the method has the characteristics of long service life and simple manufacture.
The preparation method of the center detector in the neutrino detection device specifically comprises the following steps:
step one: prefabricated organic glass spherical shell
Preparing an organic glass spherical shell of the center detector, and packaging liquid flash in the organic glass spherical shell;
step two: prefabricated center detector inner structure
Uniformly dividing the outer surface of the organic glass spherical shell into a plurality of arc pieces with equal size; customizing an additional organic glass block according to the size and radian of the arc piece;
3 or more concave holes with narrow upper part and wide lower part are formed along the circumferential direction around the center point 360 of the additional organic glass block;
a matched concave rubber pad is arranged in the concave hole, and a ball seat is arranged in the rubber pad groove;
polymerizing and fixing the additional organic glass on the outer surface of the organic glass to form a central detector inner structure;
step three: prefabricated center detector external structure
Preparing a hemispherical stainless steel net shell matched with the organic glass spherical shell;
step four: prefabricated connecting rod
The connecting rod is used for connecting and fixing the stainless steel net shell and the organic glass spherical shell;
prefabricating a connecting rod by using an alloy, wherein the connecting rod comprises a stay bar and a stay bar branch, and the stay bar branch is welded or hinged and fixedly connected with the stay bar;
3 or more stay bar branches are uniformly arranged in the 360-degree circumferential direction at the vertex of one end of the stay bar; the number of the stay bar branches is the same as that of concave holes on a single piece of additional organic glass;
one end of the supporting branch is provided with a certain bending radian, and the angle of the bending radian is 135-180 degrees;
step six: composite center detector
One end of the connecting rod is hinged to the stainless steel net shell, and the other end provided with a stay bar branch is inserted into a ball seat of the internal structure of the center detector;
the two hemispherical stainless steel latticed shells are connected and fixed by adopting a buckle;
step seven:
and arranging a photomultiplier on the folded stainless steel net shell, and connecting and combining the photomultiplier according to a conventional process.
The application has the beneficial effects that: the technical defects that the prestress of the organic glass in the internal structure is large and concentrated when the internal structure of the central detector is manufactured by the traditional technology are overcome; the center detector manufactured by the method effectively increases the redundancy of the structure, so that when a single stay bar is damaged, the whole structure cannot be immediately invalid, the collapse resistance is improved, the continuous collapse can be prevented, and the potential safety hazard is reduced; the center detector manufactured by the method has the characteristics of long service life and simple manufacture.
Drawings
FIG. 1 is a schematic view of a sectional partial structure of a center probe prepared by the method for preparing a center probe in a neutrino probe device according to the application;
in the figure: 1 stay bar, 2 additional organic glass, 3 rubber pads, 4 ball seat, 5 organic glass and 6 stay bar branches.
Detailed Description
In order to enable those skilled in the art to better understand the technical scheme of the present application, the present application will be further described in detail with reference to specific embodiments.
The preparation method of the center detector in the neutrino detection device specifically comprises the following steps:
step one: prefabricated organic glass spherical shell
Preparing an organic glass spherical shell of the center detector, and packaging liquid flash in the organic glass spherical shell;
step two: prefabricated center detector inner structure
Uniformly dividing the outer surface of the organic glass spherical shell into a plurality of arc pieces with equal size; the additional organic glass block is customized according to the size and radian of the arc piece,
3 or more concave holes with narrow upper part and wide lower part are formed along the circumferential direction around the center point 360 of the additional organic glass block;
a matched concave rubber pad is arranged in the concave hole, and a ball seat is arranged in the rubber pad groove;
polymerizing and fixing the additional organic glass on the outer surface of the organic glass to form a central detector inner structure;
step three: prefabricated center detector external structure
Preparing a hemispherical stainless steel net shell matched with the organic glass spherical shell;
step four: prefabricated connecting rod
The connecting rod is used for connecting and fixing the stainless steel net shell and the organic glass spherical shell;
prefabricating a connecting rod by using an alloy, wherein the connecting rod comprises a stay bar and a stay bar branch, and the stay bar branch is welded or hinged and fixedly connected with the stay bar;
3 or more stay bar branches are uniformly arranged in the 360-degree circumferential direction at the vertex of one end of the stay bar; the number of the stay bar branches is the same as that of concave holes on a single piece of additional organic glass;
one end of the supporting branch is provided with a certain bending radian, and the angle of the bending radian is 135-180 degrees;
step six: composite center detector
One end of the connecting rod is hinged to the stainless steel net shell, and the other end provided with a stay bar branch is inserted into a ball seat of the internal structure of the center detector;
the two hemispherical stainless steel latticed shells are connected and fixed by adopting a buckle;
step seven:
and arranging a photomultiplier on the folded stainless steel net shell, and connecting and combining the photomultiplier according to a conventional process to form the center detector.
Fig. 1 is a schematic view of a local structure of a section of a center detector, specifically a schematic view of a organic glass node structure of the center detector, which is prepared by using a preparation method of the center detector in a neuter detection device according to the present application, specifically:
the organic glass node structure comprises a stay bar 1, a stay bar branch 6, additional organic glass 2, a rubber pad 3, a ball seat 4 and organic glass 5; wherein, the liquid crystal display device comprises a liquid crystal display device,
one end of the stay bar 1 is hinged with an external reticulated shell, 3 stay bar branches 6 which are more than or equal to 3 are uniformly arranged at the other end of the stay bar 1 in the 360-degree circumferential direction, and the stay bar branches 6 are welded or fixedly connected with the stay bar 1 in a hinged manner;
a concave hole with a narrow upper part and a wide lower part is formed in the additional organic glass 2, a matched concave rubber pad 3 is arranged in the concave hole, and a ball seat 4 is arranged in a groove of the rubber pad 3;
the ball seat 4 is provided with an opening which is larger than the diameter of the stay bar branch 6;
the supporting branch 6 is inserted into the opening of the ball seat 4;
the additional plexiglass 2 is polymer fixed to the outer surface of the plexiglass 5.
In order to increase the bending rigidity of the supporting rod and disperse the stress of the organic glass, the supporting branch is inserted into the ball seat end to have certain bending, and the bending angle is between 135 degrees and 180 degrees.
The above describes the preparation method of the center detector in the neutrino detection device provided by the application in detail, and the embodiments are applied to the description of the principle and the implementation of the application, and the description of the above embodiments is only used for helping to understand the method and the core idea of the application; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present application, the present description should not be construed as limiting the present application in view of the above.
Claims (1)
1. A preparation method of a center detector in a neutrino detection device is characterized by comprising the following steps of:
step one: prefabricated organic glass spherical shell
Preparing an organic glass spherical shell of the center detector, and packaging liquid flash in the organic glass spherical shell;
step two: prefabricated center detector inner structure
Uniformly dividing the outer surface of the organic glass spherical shell into a plurality of arc pieces with equal size; the additional organic glass block is customized according to the size and radian of the arc piece,
3 or more concave holes with narrow upper part and wide lower part are formed along the circumferential direction around the center point 360 of the additional organic glass block;
a matched concave rubber pad is arranged in the concave hole, and a ball seat is arranged in the rubber pad groove;
polymerizing and fixing the additional organic glass on the outer surface of the organic glass to form a central detector inner structure;
step three: prefabricated center detector external structure
Preparing a hemispherical stainless steel net shell matched with the organic glass spherical shell;
step four: prefabricated connecting rod
The connecting rod is used for connecting and fixing the stainless steel net shell and the organic glass spherical shell;
prefabricating a connecting rod by using an alloy, wherein the connecting rod comprises a stay bar and a stay bar branch, and the stay bar branch is welded or hinged and fixedly connected with the stay bar;
3 or more stay bar branches are uniformly arranged in the 360-degree circumferential direction at the vertex of one end of the stay bar; the number of the stay bar branches is the same as that of concave holes on a single piece of additional organic glass;
one end of the stay bar branch is provided with a certain bending radian, and the angle of the bending radian is 135-180 degrees;
step six: composite center detector
One end of the connecting rod is hinged to the stainless steel net shell, and the other end provided with a stay bar branch is inserted into a ball seat of the internal structure of the center detector;
the two hemispherical stainless steel latticed shells are connected and fixed by adopting a buckle;
step seven:
and arranging a photomultiplier on the folded stainless steel net shell, and connecting and combining the photomultiplier according to a conventional process to form the center detector.
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| CN106772547B true CN106772547B (en) | 2023-09-15 |
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| CN107990130B (en) * | 2017-12-22 | 2023-05-12 | 中国石油大学(华东) | Sleeve type supporting structure of organic glass detector |
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| CN203881957U (en) * | 2014-06-16 | 2014-10-15 | 华北电力大学 | Detector based on neutrino and used for detecting nuclear submarine |
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2016
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| EP0102398A2 (en) * | 1982-08-09 | 1984-03-14 | Stodolsky, Leo, Prof. | Method and apparatus for the detection of neutrinos and uses of the neutrino detector |
| DE19614575A1 (en) * | 1996-04-12 | 1997-10-16 | Konstantin Prof Dr Ing Meyl | Apparatus for receiving and measuring presence of neutrino particles |
| JP2004361371A (en) * | 2003-06-02 | 2004-12-24 | Joshin Uramoto | Observation method for neutrino by static system including hydrogen or deuterium ion beam |
| CN103837417A (en) * | 2012-11-26 | 2014-06-04 | 西安大昱光电科技有限公司 | Glass bulb stress testing device |
| CN103837402A (en) * | 2012-11-26 | 2014-06-04 | 西安大昱光电科技有限公司 | Test bottle fixing structure of glass bulb stress testing device |
| CN103883859A (en) * | 2014-03-12 | 2014-06-25 | 浙江大学 | Flexible equator supporting structure of organic glass detector |
| CN203881957U (en) * | 2014-06-16 | 2014-10-15 | 华北电力大学 | Detector based on neutrino and used for detecting nuclear submarine |
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| 周燕.江门中微子探测器结构选型分析与节点承载性能研究.《中国优秀硕士学位论文全文数据库基础科学辑 (月刊)物理学 》.2015, * |
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