阅读说明：本技术 一种高放样品中子成像检测装置 (Neutron imaging detection device for high lofting sample ) 是由 刘虎 林红汉 刘瀚 于 2021-11-03 设计创作，主要内容包括：本发明公开了一种高放样品中子成像检测装置,包括样品转运容器、检测屏蔽块和承载系统。在检测过程中,通过设备间的合作将检测样品移动到检测位置；同时本发明中设置有屏蔽装置,可以有效的防止辐射外泄；除此之外,本发明的检测屏蔽模块中设置的中子束流通道保证中子通过并对检测样品进行照射,再通过连接成像屏接口及数字成像系统接口,能保证与其他辅助设备连接畅通,大大的提高了中子样品的检测效率。(The invention discloses a neutron imaging detection device for a high-lofting sample, which comprises a sample transfer container, a detection shielding block and a bearing system. During the detection process, the detection sample is moved to the detection position through cooperation between the devices; meanwhile, the shielding device is arranged in the invention, so that radiation leakage can be effectively prevented; in addition, the neutron beam flow channel arranged in the detection shielding module ensures that neutrons pass through and irradiate the detection sample, and the connection between the neutron beam flow channel and other auxiliary equipment is ensured to be smooth by connecting the imaging screen interface and the digital imaging system interface, so that the detection efficiency of the neutron sample is greatly improved.)

1. The utility model provides a high lofting article neutron imaging detection device which characterized in that: the device comprises a sample transfer container, a detection shielding block and a bearing system, wherein the detection shielding block provides a supporting platform for hoisting the sample transfer container, and the sample transfer container is connected with the bearing system through the detection shielding block;

the container is transported to sample includes inlayer lead tank and outer lead tank, the inlayer lead tank is connected with outer lead tank through nested mode, the external diameter of inlayer lead tank is 30cm, and the internal diameter is 7.1cm, the external diameter 50cm of outer lead tank, the internal diameter is 30 cm.

2. The neutron imaging detection device for high loft samples according to claim 1, wherein: the inner lead tank and the outer lead tank are respectively provided with a lifting ring, and one side of the inner lead tank, which is far away from the lifting rings, is provided with a protruding block.

3. The neutron imaging detection device for high loft samples according to claim 1, wherein: and a stop block mechanism is arranged on one side of the outer lead tank, which is far away from the hanging ring.

4. The neutron imaging detection device for high loft samples according to claim 1, wherein: the detection shielding block comprises a neutron beam flow channel and a detachable interface shielding block, and the size of the neutron beam flow channel is 185mm by 185 mm.

5. The neutron imaging detection device for high loft samples according to claim 4, wherein: the detachable interface shielding block is provided with a neutron indirect imaging conversion screen installation interface and a digital imaging system interface, and is connected with the detection shielding block in a sleeving manner.

6. The neutron imaging detection device for high loft samples according to claim 1, wherein: the sample transfer container comprises a slide rail and a support frame which is arranged on the slide rail and is in sliding connection with the slide rail, wherein a motor for driving the support frame to move is arranged on one side of the support frame.

7. The high loft neutron imaging detection device of claim 6, wherein: one side of the support frame, which is far away from the slide rail, is provided with a bearing table, and the cross-sectional area of the bearing table is consistent with that of the detection shielding block.

8. The high loft neutron imaging detection device of claim 6, wherein: the motor outside is equipped with the plumbous protection casing, the plumbous protection casing is the staggered floor structure.

Technical Field

The invention relates to a neutron imaging detection device for a high lofting sample.

Background

Neutron radiography is a non-destructive imaging technique that uses thermal neutrons to probe a sample. Neutron imaging refers to a collection of non-destructive inspection methods that exploit the penetration of neutrons to study the internal structure of an object. The attenuation of neutrons by different substances is also different according to the general law of radiation attenuation by substances. In a typical neutron radiography experiment, the object to be investigated is placed in a well-defined neutron beam. A 2D position sensitive detector, typically consisting of a scintillator optically coupled to a CCD or EMCCD camera, is placed on one side of the object and records the radiation transmitted through the object. The shadow image thus generated gives information about the internal structure of the object under investigation.

However, most of the existing detection methods and detection devices are manually driven, which is inconvenient to implement and operate.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a neutron imaging detection device for a high lofting sample.

The purpose of the invention is realized by the following technical scheme:

a neutron imaging detection device for a high-lofting sample comprises a sample transfer container, a detection shielding block and a bearing system, wherein the detection shielding block provides a supporting platform for hoisting the sample transfer container, and the sample transfer container is connected with the bearing system through the detection shielding block;

the container is transported to sample includes inlayer lead can and outer lead can, the inlayer lead can is connected with outer lead can through nested mode, the external diameter of inlayer lead can is 30cm, and the internal diameter is 7.1cm, the external diameter 50cm of outer lead can, the internal diameter is 30cm, and inlayer lead can and outer lead can cooperate the use, satisfy civil engineering space requirement, detect that the sample loads requirement and the radiation protection requirement that the container reciprocated in inlayer space.

Further, the portion on inlayer lead can and outer lead can top all is equipped with rings, sets up the convenient hoist and mount of rings, the inlayer lead can is kept away from one side of rings is equipped with protruding piece, and designs protruding piece's direction, and more convenient messenger inlayer lead can and outer lead can cooperate.

Furthermore, one side that rings were kept away from to outer lead can is equipped with dog mechanism, dog mechanism prevents that sample loading equipment from falling in the hoist and mount transportation process, and dog mechanism can be when outer jar and detection shielding piece cooperation simultaneously, and the dog outwards moves, can make sample loading equipment pass through.

Furthermore, the detection shielding block comprises a neutron beam flow channel and a detachable interface shielding block, the size of the neutron beam flow channel is 185mm by 185mm, it should be noted that, facing the beam flow direction, the edge of the detection beam flow channel is taken as a reference, the total thickness of the shielding materials on the left side of the detection shielding block is not less than 30cm, the total thickness of the shielding materials on the right side is not less than 25cm, the total thickness of the shielding materials on the lower side is not less than 25cm, the total thickness of the shielding materials on the upper side is not less than 20cm, the total thickness of the shielding materials in the front and rear direction of the detection shielding block is not less than 75cm, and the shielding materials adopt equivalent lead.

Furthermore, the detachable interface shielding block is provided with a neutron indirect imaging conversion screen installation interface and a digital imaging system interface, and is connected with the detection shielding block in a sleeving manner.

Further, the sample transport container includes the slide rail and set up on the slide rail and with slide rail sliding connection's support frame, support frame one side is equipped with the motor that the drive support frame removed.

Furthermore, a bearing table is arranged on one side, away from the slide rail, of the support frame, and the cross-sectional area of the bearing table is consistent with that of the detection shielding block.

Further, the motor outside is equipped with the lead protection casing, the lead protection casing is the staggered floor structure, does not influence the motor heat dissipation when preventing the radiation influence.

The invention has the beneficial effects that:

1) the invention can rapidly move the detection sample to the detection position through the cooperation of the sample transfer container, the detection shielding block and the bearing system.

2) According to the invention, the structures and materials of the outer lead tank, the inner lead tank and the shielding device are arranged, so that radiation leakage can be effectively prevented.

3) The neutron beam flow channel arranged in the detection shielding module ensures that neutrons pass through and irradiate a detection sample, and can ensure smooth connection with other auxiliary equipment by connecting the imaging screen interface and the digital imaging system interface, thereby greatly improving the detection efficiency of the neutron sample.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of the present invention;

fig. 3 is a top view of the present invention.

In the figure: 1-a transfer vessel; 2-detecting a shielding block; 3-a carrier system; 4-a motor; 5-neutron beam flow channel; 6-a slide rail; 7-outer lead can; 8-inner lead tank; 9-a hoisting ring; 10-a bearing table.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a neutron imaging detection device for high lofting samples comprises a sample transfer container 1, a detection shielding block 2 and a bearing system 3, wherein the detection shielding block 2 provides a supporting platform for hoisting the sample transfer container 1, and the sample transfer container 1 is connected with the bearing system 3 through the detection shielding block 2;

the sample transfer container 1 comprises an inner lead tank 8 and an outer lead tank 7, the inner lead tank 8 is connected with the outer lead tank 7 in a nested mode, the outer diameter of the inner lead tank 8 is 30cm, the inner diameter is 7.1cm, the outer diameter of the outer lead tank 7 is 50cm, the inner diameter is 30cm, the inner lead tank 8 and the outer lead tank 7 are matched for use, and the requirements of civil engineering space requirements and radiation protection requirements for up-down movement of the sample loading container in the inner space are met.

Further, the portion on top of inlayer lead can 8 and outer lead can 7 all is equipped with rings 9, sets up rings 9 and conveniently hoists, and one side that rings 9 were kept away from to inlayer lead can 8 is equipped with protruding piece, and designs the direction of protruding piece, and more convenient messenger's inlayer lead can 8 and outer lead can 7 cooperate.

Furthermore, one side of the outer lead tank 7, which is far away from the hanging ring 9, is provided with a stop block mechanism, the stop block mechanism prevents the sample loading equipment from falling in the hoisting and transferring process, and meanwhile, when the outer lead tank is matched with the detection shielding block 2, the stop block moves outwards, so that the sample loading equipment can pass through.

Further, the detecting shielding block 2 includes a neutron beam flow channel 5 and a detachable interface shielding block, the size of the neutron beam flow channel 5 is 185mm x 185mm, it should be noted that, facing to the beam flow direction, with the edge of the detecting beam flow channel as a reference, the total thickness of the shielding material on the left side of the detecting shielding block 2 is not less than 30cm, the total thickness of the shielding material on the right side is not less than 25cm, the total thickness of the shielding material on the lower side is not less than 25cm, the total thickness of the shielding material on the upper side is not less than 20cm, the total thickness of the shielding material on the front and rear sides of the detecting shielding block 2 is not less than 75cm, the shielding material adopts equivalent lead, a neutron indirect imaging conversion screen mounting interface and a digital imaging system interface are arranged on the detachable interface shielding block, and the detachable interface shielding block is connected with the detecting shielding block 2 in a sleeving manner.

Further, sample transportation container 1 includes slide rail 6 and sets up on slide rail 6 and with slide rail 6 sliding connection's support frame, and support frame one side is equipped with the motor 4 that the drive support frame removed.

Furthermore, a bearing table 10 is arranged on one side of the support frame, which is far away from the slide rail 6, and the cross-sectional area of the bearing table 10 is consistent with that of the detection shielding block 2. Through the cooperation of the support frame and the motor 4, the bearing system 3 can meet the bearing and translation functions of the whole device; matching with other structures of the device to match the central height (1200 mm) of the neutron beam; the device can be transversely translated (requiring a non-manual power source and being remotely controlled) under the integral installation condition, the transverse translation stroke is 1m +/-10 cm, the specification of the platform of the bearing system 3 is designed according to the requirements of the weight of the device, the moving stroke of the device and the like, the integral specification is not more than the plane space (2 m x 1 m) of an installation site, and the installation site has a crane condition. A sample up-and-down moving function module is designed in the bearing system 3, the up-and-down moving stroke is matched with the detection shielding block 2 and the bearing system 3, the sample can be moved to a neutron beam detection area, and the up-and-down moving positioning precision is better than 0.5 mm; the sample can rotate in a stepping mode within 360 degrees through rotating motion, the single minimum rotating angle is smaller than 0.1 degree, and the repeated positioning precision is better than 0.2 degree/360 degrees

Furthermore, the lead protective cover is arranged on the outer side of the motor 4 and is of a staggered structure, and radiation influence is prevented while heat dissipation of the motor 4 is not influenced.

The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the invention is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.