WO2021124423A1 - ポータブルコンベア式ｘ線検査装置 - Google Patents

ポータブルコンベア式ｘ線検査装置 Download PDF

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Publication number
WO2021124423A1
WO2021124423A1 PCT/JP2019/049256 JP2019049256W WO2021124423A1 WO 2021124423 A1 WO2021124423 A1 WO 2021124423A1 JP 2019049256 W JP2019049256 W JP 2019049256W WO 2021124423 A1 WO2021124423 A1 WO 2021124423A1
Authority
WO
WIPO (PCT)
Prior art keywords
ray
conveyor
inspection
subject
portable
Prior art date
Application number
PCT/JP2019/049256
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
波 王
典生 齊藤
小軍 劉
鈴木　修一
Original Assignee
つくばテクノロジー株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by つくばテクノロジー株式会社 filed Critical つくばテクノロジー株式会社
Priority to JP2021565184A priority Critical patent/JP7329881B2/ja
Priority to CN201980103555.XA priority patent/CN115087859A/zh
Priority to PCT/JP2019/049256 priority patent/WO2021124423A1/ja
Publication of WO2021124423A1 publication Critical patent/WO2021124423A1/ja

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
    • G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
    • G01N23/06—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption
    • G01N23/10—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption the material being confined in a container, e.g. in a luggage X-ray scanners

Definitions

  • the present invention relates to a portable conveyor type X-ray inspection device that is easy to move and install, performs X-ray inspection of a subject quasi-continuously on a conveyor, and enables both high-speed and high-precision X-ray inspection at the same time.
  • conveyor-type baggage X-ray inspection equipment has been installed at airports, etc., but it is large and not intended for mobile use, and the radiation dose is high.
  • the baggage inspection X-ray device of Patent Document 1 is open to the public.
  • the baggage 4 is mounted with reference to the X-ray irradiation range setting area 11 of the baggage inspection table 13, and when X-rays are irradiated from the X-ray generating portion in the lower main body 7, the baggage 4 is passed. Since it reaches the X-ray image receiving unit 9 and is reflected by the mirror 10, the inspector keeps his / her hands on the X-ray irradiation range setting area 11 and shifts the position of the baggage 4 while shifting the position of the baggage 4 to be suspicious. It is to confirm the existence of.
  • Patent Document 1 Even if the baggage inspection X-ray apparatus of Patent Document 1 is portable, it is necessary to place the subject on the baggage inspection table 13 by hand, which is complicated, requires a long time for inspection, and a large amount of subject. Not suitable for X-ray examination of specimens. In addition, since the X-ray blocking property is insufficient, it is necessary to take measures against radiation exposure, which is not convenient.
  • the present invention is a portable conveyor type X-ray inspection device that is easy to move and install, performs X-ray inspection of a subject quasi-continuously on a conveyor, and enables both high-speed and high-precision X-ray inspection. Is intended to provide.
  • the present invention (1) A conveyor provided with legs, which is placed on the legs, on which the subject is placed, and which is moved to the X-ray imaging location and further to the extraction position.
  • An X-ray shielding housing that surrounds the X-ray imaging location on the conveyor,
  • An X-ray irradiation unit installed inside the housing and irradiating the subject with X-rays,
  • a digital detector that detects X-rays that have passed through the subject
  • a control device that processes the detection signal corresponding to the X-ray intensity detected by the detector so that it can be displayed as a digital X-ray image
  • a monitor that displays the digital X-ray image and Consists of
  • a portable conveyor type X-ray inspection device that enables both high-precision X-ray inspection.
  • a first sensor for detecting the passage of the subject is provided in front of the X-ray imaging location, and after a predetermined time from the detection of the first sensor, the drive of the conveyor is stopped by a control signal of the control device, and the X-ray imaging is performed.
  • the portable conveyor type X-ray inspection apparatus according to (1).
  • the housing is fitted in a receiver connected to the conveyor, framed by columns and beams provided with grooves, and an X-ray shielding lead plate is fitted in the grooves to surround the X-ray imaging site and to surround the subject.
  • the portable conveyor type X-ray inspection apparatus wherein a plurality of lead-containing strips are hung at the entrance and the exit.
  • the portable conveyor type X-ray inspection apparatus according to (1) which is characterized in that it is disassembled and moved to an inspection place and assembled at the inspection place.
  • a crime prevention method characterized by performing baggage inspection at a vehicle or at the entrance of a venue using the portable conveyor type X-ray inspection device according to (1).
  • the present invention Since the present invention has the above configuration, it is easy to move and install, that is, it can be assembled and disassembled at the inspection site and moved to the next venue, so that it can be visually observed in vehicles, various indoor and outdoor events.
  • baggage inspection By replacing baggage inspection by such means as X-ray inspection, it enables short-time (high-speed) and high-precision inspection, which can greatly contribute to the prevention of crimes and accidents.
  • X-ray inspection of the subject can be performed semi-continuously on the conveyor (intermittent: the moving conveyor is stopped only at the time of shooting), X-ray inspection is easy, inspection efficiency is good, and a large amount of baggage and industry Enables X-ray inspection of products.
  • X-ray imaging is performed by stopping the conveyor, that is, because the stop of the conveyor is synchronized with the irradiation of X-rays and the detection of the detector, the X-ray image becomes clear. Furthermore, if a flat panel detector is adopted, high-precision X-ray inspection that can distinguish even a foreign matter of 0.1 mm becomes possible.
  • a strip with a lead plate is placed at the entrance and exit, and the rest is surrounded by a radiation-shielding lead plate, so radiation leakage can be prevented, the risk of exposure is low, and there is no X-ray work chief. Therefore, X-ray photography becomes possible without setting a radiation controlled area around the X-ray inspection device.
  • the present invention is small, portable, and can be inspected in a short time. Therefore, X-rays of baggage are used for baggage inspection at airports where airport facilities are insufficient, and for boarding and boarding the Shinkansen. It will be possible to carry out inspections. This contributes to the safety of their operation and crime prevention. In particular, it is possible to differentiate safe operation by implementing it for some vehicles and customers only on the floor.
  • the present invention can be used not only for baggage inspection but also for foreign matter inspection of high-speed and high-precision foods and shoes, batteries and substrates of industrial products.
  • FIG. 1 is a schematic side view of the portable conveyor type X-ray inspection apparatus of the present invention, and is a schematic vertical cross-sectional view of the housing. It is a schematic diagram of.
  • FIG. 2 is a schematic plan view of the portable conveyor type X-ray inspection apparatus of the present invention, and is a schematic horizontal cross-sectional view of the housing.
  • FIG. 3 is an explanatory view of the housing.
  • FIG. 3 (A) is a schematic vertical cross-sectional view
  • FIG. 3 (B) is a schematic cross-sectional view of a complete housing corresponding to the AA'position of FIG. 3 (B)
  • FIG. 3 (B) is a horizontal cross section. It is sectional drawing of the complete body of the housing corresponding to the BB'position of A).
  • the portable conveyor type X-ray inspection device 1 of the present invention includes a conveyor 2, a housing 3, an X-ray irradiation unit 4, a detector 5, a control device 6, and a monitor. It consists of 7.
  • the conveyor 2 includes legs 2a, for example, a frame 2c placed on the legs 2a and a subject 10a before inspection are placed on the conveyor 2 and rotated by being driven by a motor 2e to place the subject 10 at an X-ray imaging location. It is composed of a belt 2d that is moved and further moves the subject 10b to the take-out position. If the legs 3a are provided with casters 2b, the installation position can be easily adjusted. A roller driven by a motor 2e may be used instead of the belt 2d.
  • the housing 3 is assembled from an X-ray shielding material that surrounds an X-ray imaging location on the conveyor 2, and is, for example, a receiver 3p that is directly connected via a mounting portion 3q that connects to a frame 2c of the conveyor 2.
  • the housing 3 is not particularly limited as long as it can be easily assembled, disassembled, and moved.
  • a plurality of lead-containing strips 3d and strips 3g are hung at the inlet 3c of the subject 10a and the outlet 3f of the subject 10.
  • the skeleton 3a is formed by the columns 3l and the beams 3n.
  • the mounting unit 3q is provided with the X-ray irradiation unit 4, which will be described later.
  • the housing 3 is further locked to the front locking portion 3r and the rear locking portion 3s erected on the frame 2c of the conveyor 2, or to the inside of the housing 3 of the left and right side plates 3h and 3i in the housing 3.
  • a first sensor 3t and a second sensor 3u are provided, respectively.
  • the first sensor 3t detects the passage of the subject 10a before the X-ray imaging location, stops the drive of the conveyor 2 by the control signal 6c of the control device 6 after a predetermined time from the detection of the first sensor 3t, and X-ray imaging. It is used for time control of the timing of.
  • the second sensor 3u detects the passage of the subject 10b that has completed the X-ray inspection, and permits the carry-in to the next baggage inspection section. For example, the baggage loading permission signal and display on the belt 2d are turned on. If the second sensor 3u does not detect the baggage, it is presumed that the baggage is stagnant in the housing 3. Therefore, the X-ray inspection is temporarily stopped and the stagnant baggage is taken out from the housing 3.
  • the X-ray irradiation unit 4 is installed inside the housing 3 to irradiate the subject 10 with X-rays 4a, and is an X-ray source 4b that irradiates the X-rays 4a installed inside the side surface of the housing 3.
  • a drive source for example, a battery 4c, an AC-DC adapter, and the like.
  • the carbon nanostructure tripolar cold cathode X-ray tube described in Patent Document 2-5 can be adopted, and these are described in detail in those prior art documents. See them for details.
  • the detector 5 is a digital X-ray detector that is installed on the opposite side surface inside the side surface where the X-ray source 4b is installed and sandwiches the subject 10 and detects the X-ray 4a that has passed through the subject 10 and is two-dimensional. It senses it as image data and transmits the detection signal 5a to the control device 6 by wire or wirelessly.
  • Examples of the detector 5 include a scintillator, a CCD, a CMOS, a CdTe semiconductor, and the like.
  • the X-ray irradiation and the detection direction by the detector may be the horizontal direction, the vertical direction, or both of these directions in the housing 3.
  • the control device 6 controls the irradiation timing of the X-ray 4a with the control signal 6a, controls the detection timing of the detector 5 with the control signal 6b, and further controls the drive of the belt with a PC or the like to control the timing of shooting. Stop at. That is, the irradiation timing of the X-ray 4a, the sensing timing of the detector 5, and the stop of the belt are synchronized. Then, the detection signal 5a corresponding to the X-ray intensity detected by the detector 5 is processed so as to be displayable as a digital X-ray image 7a.
  • control device 6 determines that the object is a dangerous object when the shape of the object is similar to the dangerous object by image processing the captured image or comparing it with a pre-recorded image or the like, and uses sound or light. It may have an alert generation function. In addition, it is possible to facilitate visual judgment by displaying on the monitor 7 a color-coded soft dangerous substance such as an explosive or a drug and a hard dangerous substance such as a knife or a gun.
  • the monitor 7 displays a digital X-ray image 7a.
  • Examples of the monitor 7 include a PC display, a notebook PC integrated display, and a tablet.
  • the portable conveyor type X-ray inspection device 1 made in this way synchronizes the drive stop of the conveyor 2 (stopping the rotation of the belt 2d) with the irradiation of the X-ray 4a and the detection of the detector 5, and X-rays of the subject 10.

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
PCT/JP2019/049256 2019-12-16 2019-12-16 ポータブルコンベア式ｘ線検査装置 WO2021124423A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2021565184A JP7329881B2 (ja) 2019-12-16 2019-12-16 コンベア式ｘ線検査装置
CN201980103555.XA CN115087859A (zh) 2019-12-16 2019-12-16 便携式传送带式x射线检查装置
PCT/JP2019/049256 WO2021124423A1 (ja) 2019-12-16 2019-12-16 ポータブルコンベア式ｘ線検査装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2019/049256 WO2021124423A1 (ja) 2019-12-16 2019-12-16 ポータブルコンベア式ｘ線検査装置

Publications (1)

Publication Number Publication Date
WO2021124423A1 true WO2021124423A1 (ja) 2021-06-24

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JP (1) JP7329881B2 (enrdf_load_stackoverflow)
CN (1) CN115087859A (enrdf_load_stackoverflow)
WO (1) WO2021124423A1 (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102708504B1 (ko) * 2024-06-24 2024-09-23 주식회사 엠오티 X-ray 검사기 차폐 장치

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4983176A (enrdf_load_stackoverflow) * 1972-12-15 1974-08-09
JPS4984198A (enrdf_load_stackoverflow) * 1972-12-16 1974-08-13
JPS50152515A (enrdf_load_stackoverflow) * 1974-05-27 1975-12-08
JPH11230918A (ja) * 1998-02-12 1999-08-27 Hitachi Medical Corp Ｘ線検査装置
JP2005003480A (ja) * 2003-06-11 2005-01-06 Ishida Co Ltd Ｘ線検査装置
JP2015512033A (ja) * 2012-02-08 2015-04-23 ラピスカン システムズ、インコーポレイテッド 高速セキュリティ検査システム
JP2018017663A (ja) * 2016-07-29 2018-02-01 株式会社Ｎａａエレテック Ｘ線検査用手荷物制限カーテン
JP2018124084A (ja) * 2017-01-30 2018-08-09 日本信号株式会社 Ｘ線検査装置及び手荷物検査装置

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5411911Y2 (enrdf_load_stackoverflow) * 1974-06-05 1979-05-26
CN200962093Y (zh) * 2006-05-22 2007-10-17 北京紫方启研科技有限公司 超薄便携式x射线探测箱
WO2010119485A1 (ja) * 2009-04-16 2010-10-21 株式会社島津製作所 放射線断層撮影装置
CN101655466B (zh) * 2009-09-22 2011-10-26 江苏联众肠衣有限公司 一种异物在线检测仪
CN208902890U (zh) * 2018-11-01 2019-05-24 凯世（天津）机械设备制造有限公司 一种便携式小型行李安检ct机

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4983176A (enrdf_load_stackoverflow) * 1972-12-15 1974-08-09
JPS4984198A (enrdf_load_stackoverflow) * 1972-12-16 1974-08-13
JPS50152515A (enrdf_load_stackoverflow) * 1974-05-27 1975-12-08
JPH11230918A (ja) * 1998-02-12 1999-08-27 Hitachi Medical Corp Ｘ線検査装置
JP2005003480A (ja) * 2003-06-11 2005-01-06 Ishida Co Ltd Ｘ線検査装置
JP2015512033A (ja) * 2012-02-08 2015-04-23 ラピスカン システムズ、インコーポレイテッド 高速セキュリティ検査システム
JP2018017663A (ja) * 2016-07-29 2018-02-01 株式会社Ｎａａエレテック Ｘ線検査用手荷物制限カーテン
JP2018124084A (ja) * 2017-01-30 2018-08-09 日本信号株式会社 Ｘ線検査装置及び手荷物検査装置

Also Published As

Publication number Publication date
CN115087859A (zh) 2022-09-20
JPWO2021124423A1 (enrdf_load_stackoverflow) 2021-06-24
JP7329881B2 (ja) 2023-08-21

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