CN205374767U - Hand -held type back scattering imaging appearance - Google Patents
Hand -held type back scattering imaging appearance Download PDFInfo
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- CN205374767U CN205374767U CN201520845731.6U CN201520845731U CN205374767U CN 205374767 U CN205374767 U CN 205374767U CN 201520845731 U CN201520845731 U CN 201520845731U CN 205374767 U CN205374767 U CN 205374767U
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Abstract
The utility model discloses a hand -held type back scattering imaging appearance, include: one side in protective housing is established to the detector subassembly, is equipped with X -ray output channel and X light receiving surface, the detector subassembly outside in protective housing is established to flying -spot scanning formula X -ray machine, and its light -emitting window position is corresponding to the X -ray output channel of detector subassembly, the both sides of protective housing outside set up two hollow metal handles respectively, place in the signal amplifier of detector subassembly in each hollow metal handle, the panel computer is established outside protective housing, and display image is connected with detector component communication to the panel computer, the battery is respectively with detector subassembly and flying -spot scanning formula X -ray machine electrical connection. This imager detector subassembly is in the homonymy with flying -spot scanning formula X -ray machine, can realize back scattering imaging, can conveniently stabilize the handheld wall class object that detects through setting up loose pulley assembly, and the built -in signal amplifier's of handle mode makes the equipment volume littleer, and not endangered by the X -ray through protective housing protection user.
Description
Technical Field
The utility model relates to a safety monitoring equipment field especially relates to a hand-held type back scattering imager.
Background
The non-contact safety inspection of personnel, luggage and containers entering important places is the most widely adopted safety inspection measure at present. Various metal or nonmetal weapons, poison and explosive are the key points of detection. At present, the most used is the X-ray transmission imaging technology, and the principle is that because X-rays have strong penetrating power, when the X-rays pass through substances with different densities, the transmitted light intensity is different, the light intensity received by a receiver is different, and the signal is transmitted to be large, so that the imaging can be realized. The X-ray imaging equipment is widely used by a subway security inspection system and a portable X-ray detector. The subway security inspection system sends the detected object into the crawler-type channel for detection by the aid of the conveyor belt, and has the advantages of being high in detection efficiency, capable of carrying out running-type detection on luggage of flowing personnel, large in size and inconvenient to carry, and due to the limitation of the conveyor belt, the equipment can only detect the object which can be placed in the channel, the size of the detected object is limited, the equipment is weak in X-ray protection, and X-rays are prone to leaking from the inlet and the outlet of the conveyor belt. The portable X-ray detector has the advantages that the portable X-ray detector is convenient to carry, each instrument is provided with a detection box, an X-ray machine and a plurality of power fittings, the portable X-ray detector can be carried to a use place only by one person or two persons, the defect is that the detection area depends on the size of the detection box, larger objects cannot be detected, and in addition, the detection body needs to be placed between the X-ray machine and the detection box during detection, so that the detection body of the wall type cannot be detected, the device basically does not protect X-rays, and an operator needs to keep away from the device to avoid the influence of the X-rays.
SUMMERY OF THE UTILITY MODEL
Based on the problem that above-mentioned prior art exists, the utility model provides a hand-held type back scattering imager, its is small, the transport is simple and convenient, single can handheld operation, can detect this type of object of wall to have better protection to the X-ray.
In order to solve the technical problem, the utility model provides a hand-held type back scattering imager, include:
the device comprises a protective shell, a detector assembly, two hollow metal handles, a flying spot scanning type X-ray machine, a tablet personal computer and a battery; wherein,
the detector assembly is arranged on one side in the protective shell and provided with an X-ray output channel and an X-ray receiving surface, and the X-ray receiving surface is close to the inner wall of one side of the protective shell;
two hollow metal handles are respectively arranged on two sides outside the protective shell, and a signal amplifier of a detector of the detector assembly is arranged in each hollow metal handle;
the flying spot scanning type X-ray machine is arranged in the protective shell and is positioned outside a non-X-ray receiving surface of the detector assembly, the light outlet of the flying spot scanning type X-ray machine corresponds to an X-ray output channel of the detector assembly, and X-ray energy output by the flying spot scanning type X-ray machine is output to the outside of the protective shell through the X-ray output channel of the detector assembly;
The tablet personal computer is arranged on the protective shell and positioned outside the protective shell, is in communication connection with the detector assembly, processes data output by the detector assembly and displays the processed data as an image;
the battery is arranged in the protective shell and is respectively and electrically connected with the detector assembly and the flying spot scanning type X-ray machine.
The utility model has the advantages that: by adopting the hollow metal handles and arranging the signal amplifiers of the detectors of the detector assembly in the hollow metal handles, the size of the back scattering imager is further reduced, and the metal handles can support the whole weight, ensure the strength and carry out electromagnetic shielding on the signal amplifiers; simultaneously, this imager sets up detector element, flying spot scanning formula X ray machine in the protective housing that has two handles externally, forms the detector element that makes things convenient for handheld use and flying spot scanning formula X ray machine and is in the X ray imager of the back scattering formation of image of homonymy to through setting up panel computer and detector element communication connection, can receive the scattered photon by detector element, carry out the formation of image through the panel computer and handle, detection wall class object that can be convenient. The protective shell can reduce the damage of X-ray to the body of the user.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic front view of a backscatter imager provided by an embodiment of the present invention;
fig. 2 is a schematic reverse-view three-dimensional view of a backscatter imager provided by an embodiment of the invention;
fig. 3 is a schematic diagram of a built-in signal amplifier of a detector assembly provided by an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a detector of the detector assembly provided by the embodiment of the invention;
the parts corresponding to the reference numerals in the figures are: 1. the X-ray detector comprises a detector assembly, 11, an X-ray output channel, 12, an X-ray receiving surface, 13, a signal amplifier, 2, a driving device, 3, a rotary drum, 4, a flying spot scanning type X-ray machine, 41, an X-ray machine, 5, a battery, 6, a protective shell, 7, a tablet personal computer, 8, two handles, 9, a pulley and 91, and a telescopic rod.
Detailed Description
The technical solutions in the embodiments of the present invention are described below clearly and completely, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiment of the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1 to 4, an embodiment of the present invention provides a handheld backscatter imager, which is small in size and easy to carry, can be operated by a single person, can detect objects such as walls, and has a good protection effect against X-rays, and includes:
the device comprises a protective shell, a detector assembly, two hollow metal handles, a flying spot scanning type X-ray machine, a tablet personal computer and a battery; wherein,
the detector assembly is arranged on one side in the protective shell and provided with an X-ray output channel and an X-ray receiving surface, and the X-ray receiving surface is close to the inner wall of one side of the protective shell;
two hollow metal handles are respectively arranged on two sides outside the protective shell, and a signal amplifier of a detector of the detector assembly is arranged in each hollow metal handle (as shown in figures 3 and 4);
the flying spot scanning X-ray machine is arranged in the protective shell and is positioned outside the non-X-ray receiving surface of the detector assembly, the light outlet of the flying spot scanning X-ray machine corresponds to the X-ray output channel of the detector assembly, and the X-ray energy output by the flying spot scanning X-ray machine is output to the outside of the protective shell through the X-ray output channel of the detector assembly;
the panel computer is arranged on the protective shell and is positioned outside the protective shell, and the panel computer is in communication connection with the detector assembly and displays an image after processing data output by the detector assembly;
And the battery is arranged in the protective shell and is respectively and electrically connected with the detector assembly and the flying spot scanning type X-ray machine.
In the imager, the protective shell is a shell composed of a front panel and a lead back shell, the front panel can be made of light hard materials, for example, the front panel can be any one of a carbon fiber front panel, a wood front panel or a plastic front panel, the front panel is convenient for the detector to receive scattered X-rays, and the lead back shell can protect the radiation of the X-rays to operators.
In the imager, the detector assembly consists of an even number of detectors, wherein every two detectors are symmetrically distributed and arranged at intervals in a group, and a gap between the two detectors is an X-ray output channel of the group of detectors;
and signal amplifiers are respectively arranged on the outer sides of the two detectors in each group.
In the above imager, the flying spot scanning X-ray machine includes: the X-ray machine is provided with a vertical slit at a light emitting port;
the rotary drum is movably covered outside the light emitting port of the X-ray machine and can rotate around the light emitting port of the X-ray machine, four transverse slits are uniformly distributed on the rotary drum, the positions of the four transverse slits correspond to the vertical slits arranged at the light emitting port of the X-ray machine, and the X-ray machine can output transverse strip X-rays through the vertical slits at the light emitting port and the transverse slits of the rotary drum;
And the driving device is connected with the rotary drum and can drive the rotary drum to rotate around the light emitting port of the X-ray machine.
In the imager, the X-ray machine adopts a micro-dosage constant-current X-ray machine.
In the imager, a lead shell is adopted as a shell of the micro-dosage constant-current X-ray machine; the rotary drum is a lead rotary drum.
In the imager, the tablet computer is a tablet computer with a gyroscope and an acceleration sensor.
The above-mentioned imager further includes: and the pulley assemblies are distributed outside the protective shell on one side of the X-ray receiving surface of the detector assembly. Preferably, the pulley assemblies are four and distributed at four corners outside the protective shell.
The utility model adopts X-ray back scattering imaging, the back scattering detection principle is that by using the Compton scattering theory, different scattering can occur when the X-ray meets different substances, and the scattering is stronger when the X-ray meets low atomic number substances; when the high-atomic-number substance is encountered, the scattering is relatively weak, so that the detected object is classified. After the X-ray irradiates the object to be detected, according to the law of conservation of energy, the energy of scattered photons hitting electrons is reduced, and the ability of penetrating substances is poor, so that detectors receiving the scattered photons are generally placed on the same side of a ray source, and therefore the wall type detection body can be detected. In the aspect of machinery, the detection equipment is compressed to the minimum size and weight on the premise of not influencing the use efficiency, and a small X-ray machine is used, so that the man in adults can be operated by a single person in a hand-held mode. The imager forms a multi-layer lead shield by employing a lead housing having a lead back shell, a lead drum, and a lead housing for an X-ray machine. The equipment is powered by a battery, wiring is not needed during use, the collected images are displayed on a tablet personal computer of the equipment, and the images are processed by a program run by the tablet personal computer, namely the images can be seen immediately. The X-ray only emits to the object to be measured from the X-ray output channel of the detector assembly, the scattered X-ray is shielded to the maximum extent, and the equipment operator is effectively protected on the premise of not influencing the imaging effect.
The utility model discloses the imager has following characteristics: (1) the small-sized X-ray machine and the detector can be adopted, the size is small, the weight is light, and the image effect of back scattering is not influenced. (2) By adopting back scattering imaging, the X-ray machine and the detector are at the same side and fixed inside the protective shell, so that the detection object of wall class can be conveniently held by hand. (3) The built-in battery is adopted for power supply, the imager is only required to be operated during detection, other wires are not needed, and images are immediately displayed on a tablet personal computer on the equipment and can be seen immediately. (4) The device is provided with a gyroscope and an acceleration sensor, has an anti-shake function, and can correct image deformation caused by uneven moving speed and hand shake displacement. (5) The lead protection is adopted, the lead molecule density is high, X-rays are difficult to penetrate, and except for the fact that an X-ray light emitting port in the equipment is provided with a superfine slit, a lead protection shell is arranged around the X-ray machine.
The back scattering imager of the present invention will be further described with reference to the following embodiments.
As shown in fig. 1 and 2, the detector assembly 1 is disposed at one side in the protective housing 6, the flying spot scanning X-ray machine 4 is disposed beside the detector assembly, and the light emitting surface of the X-ray machine 4 faces the detector. The battery 5 supplies power to the device and no wiring is required when the device is used. The protective shell 6 is made of a lead plate and effectively protects X-rays, handles are arranged on two sides of the protective shell, a user holds the handles with two hands to move the imager for detection, and images are displayed in real time through the tablet personal computer 7.
The flying spot scanning X-ray machine 4 is covered by a lead machine shell, a vertical slit is formed at the light emitting port of the X-ray machine 4, 4 slender transverse slits are uniformly processed on the rotary drum 3, X-rays are emitted from the vertical slits and then pass through the transverse slits of the rotary drum to form transverse strip type X-rays, and the X-rays are irradiated on a measured object to form Compton reflection and return to a detector to form an image. The motor as the driving device 2 rotates the drum 3 around the X-ray machine 41 at a constant speed, so that the detector receives the same amount of image information per unit time, and images of one slit are acquired each time. An operator holds the equipment by hand, moves at a constant speed under the limiting and sliding action of the pulley assembly in a direction perpendicular to the slit direction, so that the scanning line also moves at a constant speed, the whole image scanning of the whole detected object is realized, and finally, the whole image is processed into a complete image by a program.
FIG. 3 shows the relative position of the probe within the protective housing after installation, by incorporating the signal amplifier 13 within the hollow metal handle, the size of a pair of overall machines is reduced while ensuring that the signal amplifier is optimally positioned; the two handles are made of metal materials, so that the signal amplifier can be shielded, and most of motor interference and external electromagnetic interference are reduced.
Fig. 4 shows the positions of the signal amplifiers of the two detectors, wherein the front square part detects X-rays and converts X-photons into visible photons, and the rear long cylindrical part is a signal amplifier part which converts visible photons into electrical signals and amplifies the electrical signals to be acquired by the rear acquisition system. The signal amplifier must be located next to the front square detector and has a long size because it is to perform photoelectric conversion.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are all covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. A hand-held backscatter imager, comprising:
the device comprises a protective shell, a detector assembly, two hollow metal handles, a flying spot scanning type X-ray machine, a tablet personal computer and a battery; wherein,
the detector assembly is arranged on one side in the protective shell and provided with an X-ray output channel and an X-ray receiving surface, and the X-ray receiving surface is close to the inner wall of one side of the protective shell;
two hollow metal handles are respectively arranged on two sides outside the protective shell, and a signal amplifier of a detector of the detector assembly is arranged in each hollow metal handle;
the flying spot scanning type X-ray machine is arranged in the protective shell and is positioned outside a non-X-ray receiving surface of the detector assembly, the light outlet of the flying spot scanning type X-ray machine corresponds to an X-ray output channel of the detector assembly, and X-ray energy output by the flying spot scanning type X-ray machine is output to the outside of the protective shell through the X-ray output channel of the detector assembly;
the tablet personal computer is arranged on the protective shell and positioned outside the protective shell, is in communication connection with the detector assembly, processes data output by the detector assembly and displays the processed data as an image;
The battery is arranged in the protective shell and is respectively and electrically connected with the detector assembly and the flying spot scanning type X-ray machine.
2. The hand-held backscatter imager of claim 1, wherein the protective housing is a housing comprised of a front panel and a lead back shell.
3. The handheld backscatter imager of claim 1 or 2, wherein the detector assembly comprises an even number of detectors, wherein each two detectors are arranged in a group of symmetrically spaced positions, and the gap between the two detectors is the X-ray output channel of the group of detectors;
and signal amplifiers are respectively arranged on the outer sides of the two detectors in each group.
4. A hand-held backscatter imager as in claim 1 or 2 wherein the flying spot scanning X-ray machine comprises:
the X-ray machine is provided with a vertical slit at a light emitting port;
the rotary drum is movably covered outside the light emitting port of the X-ray machine and can rotate around the light emitting port of the X-ray machine, four transverse slits are uniformly distributed on the rotary drum, the positions of the four transverse slits correspond to the vertical slits arranged at the light emitting port of the X-ray machine, and the X-ray machine can output transverse strip X-rays through the vertical slits at the light emitting port and the transverse slits of the rotary drum;
And the driving device is connected with the rotary drum and can drive the rotary drum to rotate around the light emitting port of the X-ray machine.
5. The hand-held backscatter imager of claim 4, wherein the X-ray machine is a microdose constant-current X-ray machine.
6. The hand-held backscatter imager of claim 5, wherein the housing of the microdose constant-current X-ray machine is a lead housing;
the rotary drum is a lead rotary drum.
7. The handheld backscatter imager of claim 1 or 2 wherein the tablet computer is a tablet computer with a gyroscope and an acceleration sensor.
8. The hand-held backscatter imager of claim 1, further comprising: and the pulley assemblies are distributed outside the protective shell on one side of the X-ray receiving surface of the detector assembly.
9. The handheld backscatter imager of claim 8, wherein the four pulley assemblies are disposed at four corners outside the protective housing.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520845731.6U CN205374767U (en) | 2015-10-28 | 2015-10-28 | Hand -held type back scattering imaging appearance |
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| CN201520845731.6U CN205374767U (en) | 2015-10-28 | 2015-10-28 | Hand -held type back scattering imaging appearance |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109532706A (en) * | 2018-11-12 | 2019-03-29 | 江麓机电集团有限公司 | A kind of novel digital special vehicle console |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109532706A (en) * | 2018-11-12 | 2019-03-29 | 江麓机电集团有限公司 | A kind of novel digital special vehicle console |
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