WO2015014225A1 - 应用于X/Gamma射线集装箱/车辆检查设备的散列排布探测器 - Google Patents
应用于X/Gamma射线集装箱/车辆检查设备的散列排布探测器 Download PDFInfo
- Publication number
- WO2015014225A1 WO2015014225A1 PCT/CN2014/082741 CN2014082741W WO2015014225A1 WO 2015014225 A1 WO2015014225 A1 WO 2015014225A1 CN 2014082741 W CN2014082741 W CN 2014082741W WO 2015014225 A1 WO2015014225 A1 WO 2015014225A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- detector
- circuit board
- module
- arm
- ray source
- Prior art date
Links
- 230000005251 gamma ray Effects 0.000 title claims abstract description 20
- 238000007689 inspection Methods 0.000 title abstract description 10
- 238000003384 imaging method Methods 0.000 claims abstract description 7
- 238000001514 detection method Methods 0.000 claims abstract 10
- 230000005855 radiation Effects 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 12
- 239000013078 crystal Substances 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V5/00—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity
- G01V5/20—Detecting prohibited goods, e.g. weapons, explosives, hazardous substances, contraband or smuggled objects
- G01V5/22—Active interrogation, i.e. by irradiating objects or goods using external radiation sources, e.g. using gamma rays or cosmic rays
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V5/00—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity
- G01V5/20—Detecting prohibited goods, e.g. weapons, explosives, hazardous substances, contraband or smuggled objects
- G01V5/26—Passive interrogation, i.e. by measuring radiation emitted by objects or goods
-
- 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
- G01N23/046—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 using tomography, e.g. computed tomography [CT]
Definitions
- This invention relates to the field of X/Gamma ray safety inspections, and more particularly to detector arrangements in X/Gamma ray inspection systems. Background technique
- an X/Gamma ray container/vehicle inspection system using a container as the object to be inspected is usually used.
- the X/Gamma ray container/vehicle inspection system consists of the X/Gamma ray imaging subsystem, the scanning control subsystem, the operational inspection subsystem and the radiation safety subsystem.
- the X/Gamma ray imaging subsystem is the core of the entire system and consists of a ray source, detector and data acquisition and control module for generating X/Gamma ray transmission images.
- the source When scanning the inspected container/vehicle, the source generates high-energy X/Gamma ray pulses that penetrate the inspected cargo, and the high-sensitivity detector array receives the X/Gamma ray and converts it into an output signal, which is acquired and controlled by the data.
- the module generates a series of digital image signals in real time. When the entire scanning process is over, the system automatically generates a complete image of the container/vehicle being inspected.
- the detector requires the alignment of the X/Gamma source as much as possible.
- the detector module is a module of multiple detector units side by side, the existing X/Gamma ray container/vehicle inspection system
- the detectors are often arranged in an array arrangement as shown in Figure 1 and in an arc arrangement as shown in Figure 2.
- Figure 1 is a schematic diagram of the layout of an array detector.
- the array arrangement saves space and facilitates folding and transportation. However, there are large angular differences and gaps between the detector modules, resulting in large differences in the crosstalk between the detector units in the detector module.
- Figure 2 is a schematic view of the layout of the arc-shaped detector. In the arc arrangement, although each detector unit is facing the beam direction, the arc arrangement takes up a large space, and the detector is far away from the radiation source (such as an accelerator, an X-ray machine, an artificial radiation source, etc.). The signal is small. Summary of the invention
- the invention discloses a novel detector arrangement, which adopts a hash arrangement, and each detector unit is mounted with an X/Gamma ray source to greatly reduce the detector frame while improving the imaging quality. size of.
- a detector module is provided, the detector module being mounted on a detector arm, the detector module comprising one or more detector units arranged in a hash, wherein each detector module Each probe The unit is aligned with the beam center of the source.
- the source of radiation is a source of X/Gamma radiation.
- each detector unit is mounted at a different angle depending on its height in the detector arm to ensure that each detector unit is aligned with the beam center.
- the detector module is a detector circuit board that is attached to the detector arm, wherein the shape of the detector circuit board is related to the position of the detector circuit board on the detector arm.
- the shape of the detector circuit board comprises a rectangular shape and a parallelogram with an increasing internal angular difference.
- a rectangular detector circuit board is mounted on the detector arm at a position parallel to the source of the radiation source, and a parallelogram detector circuit board with an increasing internal angular difference is present in the detector
- the arm is mounted above or below the rectangular detector circuit board, wherein the smaller interior angle of the parallelogram is equal to the angle between the beam of radiation and the detector arm from the center of the beam source of the source.
- the detector unit is attached to the detector circuit board and is coupled to the data acquisition and control module via a terminal, and the crystal of the detector unit is coupled to the diode in an end or side manner.
- the present invention also provides a method of installing a detector module, wherein each detector module comprises one or more detector units arranged in a hash, the method comprising: mounting the detector module on a detector arm And aligning each detector unit in the detector module with the beam center of the source.
- FIG. 1 For a more complete understanding of the present invention, the following description will be described with reference to the accompanying drawings in which: FIG.
- Figure 2 is a schematic layout of a curved arrangement detector
- Figure 3 is a schematic view showing the layout of a hash detector according to the present invention.
- Figure 4 is a schematic illustration of a detector unit of a hash detector layout secured to a boom by a circuit board in accordance with the present invention. as well as
- FIG. 5 is a schematic illustration of two typical circuit board mounting arrangements in accordance with the present invention. detailed description
- the invention discloses a novel detector arrangement, which adopts a hash arrangement, and each detector unit is mounted with an X/Gamma ray source to greatly reduce the detector frame while improving the imaging quality. size of.
- FIG. 3 is a schematic illustration of the layout of a hash detector in accordance with the present invention.
- the hash-displaced detectors are modified on the basis of the original array arrangement, and the detector units 35 are arranged in a hash arrangement to ensure that each detector unit 35 is provided.
- X/Gamma rays generated by the radiation source 31 The bundle 32 is transmitted through the vehicle under test 33 to the detector unit 35.
- the angle at which the detector unit 35 is mounted is related to the height at which it is located. This arrangement combines the advantages of array arrangement and arc arrangement to make up for the shortcomings of both.
- a plurality of detector modules are disposed on a vertical detector arm 34.
- Each detector module includes a plurality of side-by-side detector units 35 (e.g., 16, 32, 64, etc.).
- Each detector unit 35 in each detector module is aligned with the beam center of the source 31 in accordance with the direction of the X/Gamma beam 34 represented by the dashed line in FIG. 3, and the detector unit 35 is at the detector arm 34.
- the position of the upper mounting i.e., the angle with the ground
- a plurality of detector units 35 in the lower detector module closest to the ground have the smallest angle to the ground.
- the angle between the plurality of detector units 35 in the detector module and the ground gradually increases (in this example, from a negative angle to a zero to a positive angle), In order to align with the beam center of the radiation source 31.
- the plurality of detector units 35 in the middle detector module form an angle with the ground that is greater than the angle of the plurality of detector units 35 in the lower detector module to the ground.
- the angles of the plurality of detector units 35 in the intermediate detector module with the ground are gradually increased to align with the beam center of the radiation source 31. .
- the plurality of detector units 35 in the detector module located farthest from the ground have the largest angle with the ground, and the angles of the plurality of detector units 35 in the upper detector module with the ground gradually Increased to align with the beam center of the ray source 31.
- the individual detector units 35 are adjusted according to the height of each detector unit 35 on the detector arm 34. The angle formed by the ground.
- the hash arrangement in Fig. 3 has small crosstalk, large signal, and space saving. Compared with the array arrangement shown in Fig. 1, the hash arrangement in Fig. 3 has uniform scattering crosstalk and low noise. Moreover, the hash arrangement in accordance with the present invention minimizes the thickness of the detector arm 34.
- FIG. 4 is a schematic illustration of a detector unit of a hash detector layout secured to a boom by a circuit board in accordance with the present invention.
- a total of 30 detector circuit boards 43 are mounted on the detector arm 42.
- the board can be mounted with numbers, for example from top to bottom, and 30 detector boards are numbered as board 1, board 2, board 30. The number of boards can be more or less.
- the detector circuit board 43 can also be numbered from bottom to top.
- Each detector circuit board 43 is mounted with a plurality of detector units (for example, 16, 32, 64, etc.), and the angle at which the detector unit is mounted on the boom 42 is related to the height of the beam to ensure that the detector unit is aligned with the beam.
- the direction of illumination of 41 is provided.
- the shape of the circuit board 43 at different positions is also different.
- a rectangular circuit and a parallelogram circuit board are utilized.
- the arm frame 42 is at the same level as the radiation source (not shown), and the arm frame 42 and the beam 41 are perpendicular to each other, and the circuit board 43 has a rectangular shape.
- the angle between the beam 41 and the boom 42 is also offset by 90 degrees, and the shape of the circuit board 43 is a parallelogram with an increasing internal angular difference.
- One of the inner corners is equal to the angle between the beam 41 and the boom 42 and is also getting smaller and smaller.
- Figure 5 is a schematic illustration of two exemplary circuit board mounting arrangements in accordance with the present invention.
- the left side view in FIG. 5 is a schematic view of the mounting manner of the rectangular circuit board shown in FIG. 4, and the right side view in FIG. 5 is a plurality of parallelogram electric forms shown in FIG.
- the circuit board (including a rectangular circuit board or a parallelogram circuit board) includes a detector unit 52 or 52' and a terminal 53 or 53'.
- the detector unit 52 or 52' is fixed to the circuit board 1.
- the crystal of the detector unit 52 or 52' is connected to a diode (not shown).
- the detector unit 52 or 52' is connected via a terminal 53 or 53' to an electronics system (not shown) including a front end, sample hold, post processing, data storage, gain control, and communication, such as a data acquisition and control module.
- the detector unit 52 or 52' may be a coupling of a single crystal photodetector, or a combination of several smaller crystal and photodetector couplings, and the crystal and diode may be coupled in any manner (eg End face, side).
- a plurality of side-by-side detector units 52 are arranged in parallel with the bottom edge of the rectangle so as to be mounted, for example, on the detector arm as shown in Fig. 4 at a position equal to the source of the radiation.
- a plurality of side-by-side detector units 52' are arranged in parallel with the bottom sides of the parallel polygons so as to be mounted, for example, on the upper portion of the detector arms as shown in Fig. 4.
- the shape of the parallel polygonal circuit board 1 shown on the right side of Fig. 5 may vary depending on the height in which it is mounted in the detector arm.
Landscapes
- Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Measurement Of Radiation (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
Description
Claims
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2014299147A AU2014299147B2 (en) | 2013-07-29 | 2014-07-22 | Detectors in hash arrangement for X/Gamma ray container/vehicle inspection device |
PL14831858.7T PL3029452T3 (pl) | 2013-07-29 | 2014-07-22 | Detektory w konfiguracji rozproszonej dla sprzętu do kontroli kontenerów/pojazdów promieniowaniem rentgenowskim/gamma |
SG11201600690UA SG11201600690UA (en) | 2013-07-29 | 2014-07-22 | Detectors in hash arrangement for x/gamma ray container/vehicle inspection device |
US14/769,308 US9915751B2 (en) | 2013-07-29 | 2014-07-22 | Detector in a scattered configuration applied to X/gamma ray container/vehicle inspection equipment |
RU2015143012A RU2624603C1 (ru) | 2013-07-29 | 2014-07-22 | Детектор с рассредоточенной конфигурацией для досмотрового оборудования контейнера/транспортного средства рентгеновскими/гамма-лучами |
GB1516144.1A GB2525826B (en) | 2013-07-29 | 2014-07-22 | Detector in a scattered configuration applied to x/gamma ray container/vehicle inspection equipment |
EP14831858.7A EP3029452B1 (en) | 2013-07-29 | 2014-07-22 | Detectors in scattered configuration for x/gamma ray container/vehicle inspection equipment |
JP2015546844A JP6078656B2 (ja) | 2013-07-29 | 2014-07-22 | 検査機モジュール、検査機モジュール取付方法、及び放射線検出システム |
BR112015032636-6A BR112015032636B1 (pt) | 2013-07-29 | 2014-07-22 | módulo de detecção, método para instalação de módulos de detecção e sistema de detecção por raio |
SA516370489A SA516370489B1 (ar) | 2013-07-29 | 2016-01-28 | كاشفات في تجهيزة تجزئة لوسيلة فحص حاوية/ مركبة بأشعة إكس/ جاما |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201310321325.5 | 2013-07-29 | ||
CN201310321325.5A CN104345070B (zh) | 2013-07-29 | 2013-07-29 | 探测器模块、安装探测器模块的方法及射线检测系统 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015014225A1 true WO2015014225A1 (zh) | 2015-02-05 |
Family
ID=52430980
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2014/082741 WO2015014225A1 (zh) | 2013-07-29 | 2014-07-22 | 应用于X/Gamma射线集装箱/车辆检查设备的散列排布探测器 |
Country Status (13)
Country | Link |
---|---|
US (1) | US9915751B2 (zh) |
EP (1) | EP3029452B1 (zh) |
JP (1) | JP6078656B2 (zh) |
CN (1) | CN104345070B (zh) |
AU (1) | AU2014299147B2 (zh) |
BR (1) | BR112015032636B1 (zh) |
GB (1) | GB2525826B (zh) |
HK (1) | HK1204053A1 (zh) |
PL (1) | PL3029452T3 (zh) |
RU (1) | RU2624603C1 (zh) |
SA (1) | SA516370489B1 (zh) |
SG (1) | SG11201600690UA (zh) |
WO (1) | WO2015014225A1 (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2616088C2 (ru) * | 2015-09-30 | 2017-04-12 | Андрей Александрович Каплун | Способ определения направления на источник ядерного излучения |
JP2018523117A (ja) * | 2015-12-04 | 2018-08-16 | 同方威視技術股▲分▼有限公司 | セキュリティ検査機器及び放射線検出方法 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
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CN106483153A (zh) * | 2016-12-23 | 2017-03-08 | 同方威视技术股份有限公司 | 双能探测器及辐射检查系统 |
CN107092037B (zh) * | 2017-04-07 | 2024-05-14 | 北京华力兴科技发展有限责任公司 | 探测器组件和车辆检查装置 |
CN107677693B (zh) * | 2017-09-26 | 2020-06-09 | 同方威视技术股份有限公司 | 用于物品安全检查的扫描成像系统及其成像方法 |
CN113406710A (zh) * | 2020-03-17 | 2021-09-17 | 同方威视技术股份有限公司 | 探测器模块、探测器设备和检查设备 |
CN112304983A (zh) * | 2020-04-13 | 2021-02-02 | 丹东东方测控技术股份有限公司 | 一种多探测器式在线灰分仪 |
EP3951436A1 (en) * | 2020-08-04 | 2022-02-09 | Mettler-Toledo, LLC | Detector array and apparatus for absorption imaging comprising said detector array |
CN114152993A (zh) * | 2021-12-30 | 2022-03-08 | 同方威视科技(北京)有限公司 | 辐射检查系统 |
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US5570407A (en) * | 1994-06-30 | 1996-10-29 | Harris Corporation | Distortionless x-ray inspection |
WO1998004193A1 (en) * | 1996-07-25 | 1998-02-05 | Analogic Corporation | X-ray tomography system with substantially continuous radiation detection zone |
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2013
- 2013-07-29 CN CN201310321325.5A patent/CN104345070B/zh active Active
-
2014
- 2014-07-22 EP EP14831858.7A patent/EP3029452B1/en active Active
- 2014-07-22 BR BR112015032636-6A patent/BR112015032636B1/pt active IP Right Grant
- 2014-07-22 US US14/769,308 patent/US9915751B2/en active Active
- 2014-07-22 GB GB1516144.1A patent/GB2525826B/en active Active
- 2014-07-22 PL PL14831858.7T patent/PL3029452T3/pl unknown
- 2014-07-22 WO PCT/CN2014/082741 patent/WO2015014225A1/zh active Application Filing
- 2014-07-22 SG SG11201600690UA patent/SG11201600690UA/en unknown
- 2014-07-22 JP JP2015546844A patent/JP6078656B2/ja not_active Expired - Fee Related
- 2014-07-22 RU RU2015143012A patent/RU2624603C1/ru active
- 2014-07-22 AU AU2014299147A patent/AU2014299147B2/en not_active Ceased
-
2015
- 2015-05-12 HK HK15104452.6A patent/HK1204053A1/zh not_active IP Right Cessation
-
2016
- 2016-01-28 SA SA516370489A patent/SA516370489B1/ar unknown
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RU2616088C2 (ru) * | 2015-09-30 | 2017-04-12 | Андрей Александрович Каплун | Способ определения направления на источник ядерного излучения |
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Also Published As
Publication number | Publication date |
---|---|
GB2525826B (en) | 2020-09-23 |
BR112015032636B1 (pt) | 2020-10-20 |
EP3029452A1 (en) | 2016-06-08 |
AU2014299147B2 (en) | 2016-10-27 |
CN104345070A (zh) | 2015-02-11 |
GB201516144D0 (en) | 2015-10-28 |
EP3029452A4 (en) | 2017-03-29 |
SG11201600690UA (en) | 2016-02-26 |
GB2525826A (en) | 2015-11-04 |
RU2624603C1 (ru) | 2017-07-04 |
JP2015537223A (ja) | 2015-12-24 |
JP6078656B2 (ja) | 2017-02-08 |
EP3029452B1 (en) | 2023-05-10 |
HK1204053A1 (zh) | 2015-11-06 |
US9915751B2 (en) | 2018-03-13 |
CN104345070B (zh) | 2018-03-23 |
SA516370489B1 (ar) | 2017-09-27 |
AU2014299147A1 (en) | 2016-02-25 |
US20160231453A1 (en) | 2016-08-11 |
BR112015032636A2 (pt) | 2017-07-25 |
PL3029452T3 (pl) | 2023-09-18 |
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