WO2021124423A1 - Portable conveyor-type x-ray inspection device - Google Patents

Portable conveyor-type x-ray inspection device 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
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Prior art keywords
ray
conveyor
inspection
subject
portable
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PCT/JP2019/049256
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French (fr)
Japanese (ja)
Inventor
波 王
典生 齊藤
小軍 劉
鈴木　修一
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つくばテクノロジー株式会社
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Priority to PCT/JP2019/049256 priority Critical patent/WO2021124423A1/en
Priority to JP2021565184A priority patent/JP7329881B2/en
Priority to CN201980103555.XA priority patent/CN115087859A/en
Publication of WO2021124423A1 publication Critical patent/WO2021124423A1/en

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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.

Abstract

[Problem] To provide a portable conveyor-type X-ray inspection device which is easily moved and installed, which performs semi-continuous X-ray inspection of an inspection target on a conveyor, and which enables both high speed and high accuracy in X-ray inspections. [Solution] A portable conveyor-type X-ray inspection device characterized by comprising: a conveyor which is provided with leg parts, which is placed on the leg parts, and which moves an inspection target, that has been placed thereon, to an X-ray imaging location and further to a removal position; an X-ray shielding housing which surrounds the X-ray imaging location of the conveyor; an X-ray irradiation unit which is provided inside the housing and irradiates the inspection target with X-rays; a digital detector which senses X-rays that pass through the inspection target; a control device which processes a detection signal, corresponding to the intensity of X-rays sensed to by the detector, into a digital X-ray image that can be displayed; and a monitor which displays the digital X-ray image, wherein intermittent operation is carried out in which stopping of the conveyor is synchronized with X-ray irradiation and with sensing by the detector, in which X-ray imaging of the inspection target is carried out, and in which the conveyor is repeatedly stopped and moved, so as to enable high speed and high accuracy in X-ray inspections.

Description

ポータブルコンベア式Ｘ線検査装置Portable conveyor type X-ray inspection device
　本発明は、移動が容易で設置が簡単、被検体のＸ線検査をコンベア上で準連続的に行い、高速、高精度Ｘ線検査の両立を可能にするポータブルコンベア式Ｘ線検査装置に関する。 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.
　従来、コンベア式の手荷物のＸ線検査装置は、空港などに設置されているが、大型で移動使用を想定しておらず、また放射線量も高い。 Conventionally, 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.
　他方、ポータブル性を備えた手荷物のＸ線検査装置としては、特許文献１の手荷物検査Ｘ線装置が公開されている。特許文献１の発明は、手荷物検査台１３のＸ線照射範囲設定領域１１を参考にして手荷物４を搭載し、下部本体７内のＸ線発生部からＸ線を照射すると、手荷物４を通過してＸ線受像部９に到達し、鏡１０によって反射されるので、検査官はＸ線照射範囲設定領域１１に手を入れないようにして手荷物４の位置をずらしながら手荷物４の不審なもの６の存在の有無を確認する、というものである。 On the other hand, as a portable baggage X-ray inspection device, the baggage inspection X-ray device of Patent Document 1 is open to the public. In the invention of Patent Document 1, 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.
　しかしながら、特許文献１の手荷物検査Ｘ線装置はポータブル可能であっても、被検体を手で手荷物検査台１３に載置する必要があり、煩雑で、検査に長時間を要し、多量の被検体のＸ線検査には向かない。また、Ｘ線の遮断性が不十分であるので、放射線被曝の対策が必要であり、使い勝手がよくない。 However, 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.
特開平１０－１００５７号公報Japanese Unexamined Patent Publication No. 10-10057 特開２０１７－１９１０５７号公報「つくばテクノロジー（株）：ポータブルＸ線検査装置」Japanese Unexamined Patent Publication No. 2017-191057 "Tsukuba Technology Co., Ltd .: Portable X-ray inspection device" 特開２０１７－０１５４１２号公報「つくばテクノロジー（株）：ポータブル電線端部Ｘ線検査装置」Japanese Unexamined Patent Publication No. 2017-015412 "Tsukuba Technology Co., Ltd .: Portable wire end X-ray inspection device" 特開２０１５－２１７１３７号公報「つくばテクノジー（株）：ポータブル３Ｄ表示Ｘ線撮影装置」JP-A-2015-217137 "Tsukuba Technology Co., Ltd .: Portable 3D display X-ray imaging device" 特開２０１２－１５４６２７号公報「つくばテクノロジー（株）：Ｘ線非破壊検査装置」Japanese Unexamined Patent Publication No. 2012-154627 "Tsukuba Technology Co., Ltd .: X-ray non-destructive inspection device"
　そこで、本発明は、移動が容易で設置が簡単、被検体のＸ線検査をコンベア上で準連続的に行い、高速、高精度Ｘ線検査の両立を可能にするポータブルコンベア式Ｘ線検査装置を提供することを目的とするものである。 Therefore, 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.
　上記の課題を解決するために、本発明は、
　（１）
脚部を備え、前記脚部に載置され、被検体を載せＸ線撮影箇所さらに取り出し位置に移動させるコンベアと、
前記コンベアにおけるＸ線撮影箇所を囲むＸ線遮蔽性の筐体と、
前記筐体内部に設置され、前記被検体にＸ線を照射するＸ線照射部と、
前記被検体を透過したＸ線を感知するデジタル式の検出器と、
前記検出器で感知した前記Ｘ線強度に対応する検出信号をデジタルＸ線画像として表示可能に処理する制御装置と、
前記デジタルＸ線画像を表示するモニタと、
からなり、
前記コンベアの停止と前記Ｘ線の照射及び前記検出器の感知を同期させ、前記被検体のＸ線撮影を行い、前記コンベアの停止と移動を繰り返す間欠運転をすることで、コンベアを用いて高速、高精度Ｘ線検査の両立を可能にしたことを特徴とするポータブルコンベア式Ｘ線検査装置。
　（２）
前記Ｘ線撮影箇所前に前記被検体の通過を感知する第一センサを備え、前記第一センサの感知から所定時間後に前記コンベアの駆動を前記制御装置の制御信号で停止させ、前記Ｘ線撮影を行うことを特徴とする（１）に記載のポータブルコンベア式Ｘ線検査装置。
　（３）
前記筐体が、前記コンベアに連結する受けに嵌められ、溝を備えた柱及び梁によって骨組みされ、前記溝にＸ線遮蔽性の鉛板を嵌め、Ｘ線撮影箇所を囲み、前記被検体の入口及び出口には、鉛入り短冊を複数本垂らしてなることを特徴とする（１）に記載のポータブルコンベア式Ｘ線検査装置。
　（４）
検査場所へ分解移動し、検査場所で組み立てることを特徴とする（１）に記載のポータブルコンベア式Ｘ線検査装置。
　（５）
（１）に記載のポータブルコンベア式Ｘ線検査装置を用いて、乗物、或いは会場の入口で手荷物検査を行うことを特徴とする防犯方法。
　（６）
前記乗物が、飛行機、船、又は新幹線の何れか１であることを特徴とする（５）に記載の防犯方法。
　（７）
前記会場が、スポーツ会場、ライブ会場、セミナー会場、討論会場、政治集会、テーマパークの何れか１つであることを特徴とする（５）に記載の防犯方法。
とした。 In order to solve the above problems, 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, and
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, and
A monitor that displays the digital X-ray image and
Consists of
By synchronizing the stop of the conveyor with the irradiation of the X-ray and the detection of the detector, the X-ray image of the subject is taken, and the conveyor is stopped and moved repeatedly, the conveyor is used for high speed. A portable conveyor type X-ray inspection device that enables both high-precision X-ray inspection.
(2)
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).
(3)
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 according to (1), wherein a plurality of lead-containing strips are hung at the entrance and the exit.
(4)
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.
(5)
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).
(6)
The crime prevention method according to (5), wherein the vehicle is any one of an airplane, a ship, and a Shinkansen.
(7)
The crime prevention method according to (5), wherein the venue is any one of a sports venue, a live venue, a seminar venue, a discussion venue, a political meeting, and a theme park.
And said.
　本発明は、上記構成であるので、移動が容易で設置が簡単、すなわち検査現地にて組み立て、分解でき、次の会場に移動させることができるので、乗物、多種多様な室内、野外イベントにおける目視等による手荷物検査を、Ｘ線検査に置き換え、短時間（高速）、高精度の検査を可能にし、犯罪、事故の予防に大いに貢献できる。 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. 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.
　被検体のＸ線検査をコンベア上で準連続的（間欠的：移動するコンベアを撮影時にのみ停止させる）に行うことができ、Ｘ線検査が容易で、検査効率がよく、多量の手荷物、工業製品のＸ線検査を可能にする。 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.
　また、Ｘ線撮影は、コンベアが停止して行われるため、すなわちコンベアの停止とＸ線の照射及び検出器の感知を同期させるため、Ｘ線画像が鮮明になる。さらに、フラットパネル検出器を採用すれば、０．１ｍｍの異物であっても見分けることができる高精度Ｘ線検査が可能になる。 In addition, 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.
　鉛筐体で、出入口は、鉛板入り短冊を配置し、それ以外も放射線遮蔽性の鉛板で囲んであるため、放射線漏洩が防止でき、被曝の危険性が低く、Ｘ線作業主任者なしで、Ｘ線検査装置の周辺に放射線管理区域を設定することなしでＸ線撮影が可能になる。 In the lead housing, 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.
　本発明は、上述のように、小型で、可搬式で、短時間検査可能であるので、空港設備が十分でない空港の手荷物検査、その他、乗船、新幹線への乗車の際に、手荷物のＸ線検査を実施することが可能になる。それにより、それらの運行の安全と、犯罪予防に資する。特に、一部車両、フロアーだけの客に実施するなどすることで、安全運行の差別化を図ることもできる。 As described above, 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.
　Ｘ線検査装置が、常備されていない、スポーツ会場、ライブ会場、セミナー会場、討論会場、政治集会、テーマパークの入り口において、手荷物のＸ線検査を実施することも可能になる。それにより、安全な会場、イベントの運営に資する。 It will also be possible to carry out X-ray inspection of baggage at sports venues, live venues, seminar venues, discussion venues, political meetings, and theme park entrances where X-ray inspection equipment is not always available. This will contribute to the management of safe venues and events.
　加えて、本発明は、手荷物検査だけでなく、高速・高精度な食品や靴また工業製品の電池や基板などの異物検査にも利用できる。 In addition, 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.
図１は、本発明であるポータブルコンベア式Ｘ線検査装置の側面模式図で、筐体については縦断面模式図である。の模式図である。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. 図２は、本発明であるポータブルコンベア式Ｘ線検査装置の平面模式図で、筐体については水平断面模式図である。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. 図３は、筐体の説明図である。図３（Ａ）は縦断面模式図で、図３（Ｂ）のＡ－Ａ‘位置に相当する筐体の完全体の断面模式図で、図３（Ｂ）は水平断面で、図３（Ａ）のＢ－Ｂ’位置に相当する筐体の完全体の断面模式図である。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), and 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).
　以下、添付図面に基づき、本発明の実施の形態について詳細に説明する。ただし、本発明はそれら実施形態に限定されるものではない。 Hereinafter, embodiments of the present invention will be described in detail based on the accompanying drawings. However, the present invention is not limited to those embodiments.
　図１－３に示すように、本願発明であるポータブルコンベア式Ｘ線検査装置１は、コンベア２と、筐体３と、Ｘ線照射部４と、検出器５と、制御装置６と、モニタ７とからなる。 As shown in FIG. 1-3, 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.
　コンベア２は、脚部２ａを備え、例えば、脚部２ａに載置される枠２ｃと、検査前の被検体１０ａを載せ、モータ２ｅの駆動で回転し、Ｘ線撮影箇所に被検体１０を移動させ、さらに取り出し位置に被検体１０ｂを移動させるベルト２ｄからなる。脚部３ａにはキャスタ２ｂを備えると設置位置の調整が容易になる。ベルト２ｄに替えモータ２ｅで駆動するローラであってもよい。 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.
　筐体３は、コンベア２におけるＸ線撮影箇所を囲むＸ線遮蔽性の材料から組み立てられ、例えば、コンベア２の枠２ｃに接続する載置部３ｑを介して、或いは直接連結する受け３ｐと、受け３ｐに嵌められ、溝３ｍ或いは溝３ｏを備えた柱３ｌ及び梁３ｎと、Ｘ線撮影箇所を囲む、対向する溝３ｍ、３ｏに嵌められるＸ線遮蔽性の鉛板３ｋを内在する板（入口ユニット３ｂ、出口ユニット３ｅ、天板３ｊ、左側面板３ｈ、右側面板３ｉ、載置部３ｑ）とからなる。筐体３は、ここのあげるほか、簡易組み立て、分解、移動可能であれば、特に制限されない。 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. A plate containing a pillar 3l and a beam 3n having a groove 3m or a groove 3o and an X-ray shielding lead plate 3k fitted in the opposite grooves 3m and 3o surrounding the X-ray imaging location (the plate is fitted in the receiver 3p and has an X-ray shielding property 3k. It is composed of an inlet unit 3b, an outlet unit 3e, a top plate 3j, a left side plate 3h, a right side plate 3i, and a mounting portion 3q). The housing 3 is not particularly limited as long as it can be easily assembled, disassembled, and moved.
　被検体１０ａの入口３ｃ、被検体１０の出口３ｆには、鉛入り短冊３ｄ、短冊３ｇを複数本垂らしてなる。柱３ｌと梁３ｎで骨組３ａを形成する。載置部３ｑは、後述のＸ線照射部４を設置する。 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.
　筐体３には、さらに、コンベア２の枠２ｃに立設する前係止部３ｒ、後係止部３ｓ、或いは筐体３内の左右側面板３ｈ、３ｉの筐体３の内側に係止して、それぞれ第一センサ３ｔ、第二センサ３ｕを備える。 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.
　第一センサ３ｔは、Ｘ線撮影箇所前に被検体１０ａの通過を感知し、第一センサ３ｔの感知から所定時間後にコンベア２の駆動を制御装置６の制御信号６ｃで停止させ、Ｘ線撮影のタイミングの時間制御に利用する。 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.
　第二センサ３ｕは、Ｘ線検査終了した被検体１０ｂの通過を感知し、次の手荷物の検査部へ搬入を許可する。例えば、ベルト２ｄへの手荷物の載置許可シグナル、表示を点灯させる。第二センサ３ｕの感知がない場合には、筐体３内での手荷物の停滞が推測されるため、Ｘ線検査を一端中止して、筐体３内から停滞手荷物を取り出す。 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.
　Ｘ線照射部４は、筐体３内部に設置され、被検体１０にＸ線４ａを照射するものであって、筐体３の側面内側に設置されるＸ線４ａを照射するＸ線源４ｂと、駆動源、例えば、バッテリ４ｃ、ＡＣ－ＤＣアダプタなどを備える。 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. And a drive source, for example, a battery 4c, an AC-DC adapter, and the like.
　Ｘ線源４ｂとしては、特許文献２－５に記載のカーボンナノ構造体三極式冷陰極Ｘ線管などが、採用でき、それらはそれら先行技術文献に詳述されている。詳細は、それらを参照されたい。 As the X-ray source 4b, 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.
　検出器５は、被検体１０を挟みＸ線源４ｂが設置された側面内側の対向側面に設置され、被検体１０を透過したＸ線４ａを感知するデジタル式のＸ線検出器で、２次元画像データとして感知し、制御装置６に、有線、或いは無線で検出信号５ａを送信する。検出器５としては、例えば、シンチレータ、ＣＣＤ、ＣＭＯＳ、ＣｄＴｅ半導体などが例示される。 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.
　Ｘ線の照射、検出器による検出方向は、筐体３における水平方向、垂直方向、それら両方向の何れであってもよい。 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.
　制御装置６は、ＰＣなどで、Ｘ線４ａの照射タイミングを制御信号６ａで制御するとともに、検出器５の感知タイミングを制御信号６ｂで制御し、さらに、ベルトの駆動を制御し、撮影のタイミングで停止させる。すなわち、Ｘ線４ａの照射タイミング、検出器５の感知タイミング、ベルトの停止を同期させる。そして、検出器５で感知したＸ線強度に対応する検出信号５ａをデジタルＸ線画像７ａとして表示可能に処理する。　 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.
　さらに制御装置６は、撮影した画像を画像処理し、或いは予め記録された画像などとの対比により、対象物形状が危険物と類似する場合に、危険物であると判定し、音、光によるアラート生成機能を備えてもよい。また、爆発物、麻薬などの柔らかい危険物と刃物や銃などの硬い危険物を色分けしてモニタ７に表示することで目視判定をしやすくすることもできる。 Further, the 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.
　モニタ７は、デジタルＸ線画像７ａを表示する。モニタ７としては、ＰＣのディスプレイ、ノートＰＣの一体ディスプレイ、タブレットなどが例示できる。 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.
　このようにしてなるポータブルコンベア式Ｘ線検査装置１は、コンベア２の駆動停止（ベルト２ｄの回転停止）と、Ｘ線４ａの照射及び検出器５の感知を同期させ、被検体１０のＸ線撮影を行い、コンベア２の（ベル２ｄトの回転）の停止と移動を繰り返す間欠運転をすることで、コンベア２を用いて高速、高精度Ｘ線検査の両立を可能にする。 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. By taking a picture and performing intermittent operation in which the conveyor 2 (rotation of the bell 2d) is repeatedly stopped and moved, it is possible to achieve both high-speed and high-precision X-ray inspection using the conveyor 2.
１　　　ポータブルコンベア式Ｘ線検査装置
２　　　コンベア
２ａ　　脚部
２ｂ　　キャスタ
２ｃ　　枠
２ｄ　　ベルト
２ｅ　　モータ
３　　　筐体
３ａ　　骨組
３ｂ　　入口ユニット
３ｃ　　入口
３ｄ　　短冊
３ｅ　　出口ユニット
３ｆ　　出口
３ｇ　　短冊
３ｈ　　左側面板
３ｉ　　右側面板
３ｊ　　天板
３ｋ　　鉛板
３ｌ　　柱
３ｍ　　溝
３ｎ　　梁
３ｏ　　溝
３ｐ　　受け
３ｑ　　載置部
３ｒ　　前係止部
３ｓ　　前係止部
３ｔ　　第一センサ
３ｕ　　第二センサ
４　　　Ｘ線照射部
４ａ　　Ｘ線
４ｂ　　Ｘ線源
４ｃ　　バッテリ
４ｄ　　ＡＣ－ＤＣアダプタ
５　　　検出器
５ａ　　検出信号
６　　　制御装置
６ａ　　制御信号
６ｂ　　制御信号
６ｃ　　制御信号
７　　　モニタ
７ａ　　デジタルＸ線画像
１０　　被検体（撮影中）
１０ａ　被検体（検査前）
１０ｂ　被検体（検査後） 1 Portable conveyor type X-ray inspection device 2 Conveyor 2a Leg 2b Caster 2c Frame 2d Belt 2e Motor 3 Housing 3a Frame 3b Entrance unit 3c Entrance 3d Strip 3e Exit unit 3f Exit 3g Strip 3h Left side plate 3i Right side plate 3j Top plate 3k Lead plate 3l Pillar 3m Groove 3n Beam 3o Groove 3p Receiver 3q Mounting part 3r Front locking part 3s Front locking part 3t First sensor 3u Second sensor 4 X-ray irradiation part 4a X-ray 4b X-ray source 4c Battery 4d AC -DC adapter 5 Detector 5a Detection signal 6 Control device 6a Control signal 6b Control signal 6c Control signal 7 Monitor 7a Digital X-ray image 10 Subject (during imaging)
10a Subject (before inspection)
10b Subject (after inspection)

Claims (7)

  1. 脚部を備え、前記脚部に載置され、被検体を載せＸ線撮影箇所さらに取り出し位置に移動させるコンベアと、
    前記コンベアにおけるＸ線撮影箇所を囲むＸ線遮蔽性の筐体と、
    前記筐体内部に設置され、前記被検体にＸ線を照射するＸ線照射部と、
    前記被検体を透過したＸ線を感知するデジタル式の検出器と、
    前記検出器で感知した前記Ｘ線強度に対応する検出信号をデジタルＸ線画像として表示可能に処理する制御装置と、
    前記デジタルＸ線画像を表示するモニタと、
    からなり、
    前記コンベアの停止と前記Ｘ線の照射及び前記検出器の感知を同期させ、前記被検体のＸ線撮影を行い、前記コンベアの停止と移動を繰り返す間欠運転をすることで、コンベアを用いて高速、高精度Ｘ線検査の両立を可能にしたことを特徴とするポータブルコンベア式Ｘ線検査装置。     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, and
    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, and
    A monitor that displays the digital X-ray image and
    Consists of
    By synchronizing the stop of the conveyor with the irradiation of the X-ray and the detection of the detector, the X-ray image of the subject is taken, and the conveyor is stopped and moved repeatedly, the conveyor is used for high speed. A portable conveyor type X-ray inspection device that enables both high-precision X-ray inspection.
  2. 前記Ｘ線撮影箇所前に前記被検体の通過を感知する第一センサを備え、前記第一センサの感知から所定時間後に前記コンベアの駆動を前記制御装置の制御信号で停止させ、前記Ｘ線撮影を行うことを特徴とする請求項１に記載のポータブルコンベア式Ｘ線検査装置。 A first sensor for detecting the passage of the subject is provided in front of the X-ray imaging location, and the drive of the conveyor is stopped by a control signal of the control device after a predetermined time from the detection of the first sensor, and the X-ray imaging is performed. The portable conveyor type X-ray inspection apparatus according to claim 1, wherein the X-ray inspection apparatus is performed.
  3. 前記筐体が、前記コンベアに連結する受けに嵌められ、溝を備えた柱及び梁によって骨組みされ、前記溝にＸ線遮蔽性の鉛板を嵌め、Ｘ線撮影箇所を囲み、前記被検体の入口及び出口には、鉛入り短冊を複数本垂らしてなることを特徴とする請求項１に記載のポータブルコンベア式Ｘ線検査装置。 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 the subject. The portable conveyor type X-ray inspection apparatus according to claim 1, wherein a plurality of lead-containing strips are hung at the entrance and the exit.
  4. 検査場所へ分解移動し、検査場所で組み立てることを特徴とする請求項１に記載のポータブルコンベア式Ｘ線検査装置。 The portable conveyor type X-ray inspection apparatus according to claim 1, wherein the portable conveyor type X-ray inspection apparatus is disassembled and moved to an inspection place and assembled at the inspection place.
  5. 請求項１に記載のポータブルコンベア式Ｘ線検査装置を用いて、乗物、或いは会場の入口で手荷物検査を行うことを特徴とする防犯方法。 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 claim 1.
  6. 前記乗物が、飛行機、船、又は新幹線の何れか１であることを特徴とする請求項５に記載の防犯方法。 The crime prevention method according to claim 5, wherein the vehicle is any one of an airplane, a ship, and a Shinkansen.
  7. 前記会場が、スポーツ会場、ライブ会場、セミナー会場、討論会場、政治集会、テーマパークの何れか１つであることを特徴とする請求項５に記載の防犯方法。 The crime prevention method according to claim 5, wherein the venue is any one of a sports venue, a live venue, a seminar venue, a discussion venue, a political meeting, and a theme park.
PCT/JP2019/049256 2019-12-16 2019-12-16 Portable conveyor-type x-ray inspection device WO2021124423A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PCT/JP2019/049256 WO2021124423A1 (en) 2019-12-16 2019-12-16 Portable conveyor-type x-ray inspection device
JP2021565184A JP7329881B2 (en) 2019-12-16 2019-12-16 Conveyor type X-ray inspection device
CN201980103555.XA CN115087859A (en) 2019-12-16 2019-12-16 Portable belt type X-ray inspection device

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JPS4983176A (en) * 1972-12-15 1974-08-09
JPS4984198A (en) * 1972-12-16 1974-08-13
JPS50152515A (en) * 1974-05-27 1975-12-08
JPH11230918A (en) * 1998-02-12 1999-08-27 Hitachi Medical Corp X-ray inspection device
JP2005003480A (en) * 2003-06-11 2005-01-06 Ishida Co Ltd X-ray examination apparatus
JP2015512033A (en) * 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 High-speed security inspection system
JP2018017663A (en) * 2016-07-29 2018-02-01 株式会社Ｎａａエレテック Baggage restriction curtain for x-ray check
JP2018124084A (en) * 2017-01-30 2018-08-09 日本信号株式会社 X-ray inspection device and baggage inspection device

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JPS5411911Y2 (en) * 1974-06-05 1979-05-26

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Publication number Priority date Publication date Assignee Title
JPS4983176A (en) * 1972-12-15 1974-08-09
JPS4984198A (en) * 1972-12-16 1974-08-13
JPS50152515A (en) * 1974-05-27 1975-12-08
JPH11230918A (en) * 1998-02-12 1999-08-27 Hitachi Medical Corp X-ray inspection device
JP2005003480A (en) * 2003-06-11 2005-01-06 Ishida Co Ltd X-ray examination apparatus
JP2015512033A (en) * 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 High-speed security inspection system
JP2018017663A (en) * 2016-07-29 2018-02-01 株式会社Ｎａａエレテック Baggage restriction curtain for x-ray check
JP2018124084A (en) * 2017-01-30 2018-08-09 日本信号株式会社 X-ray inspection device and baggage inspection device

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