EP2021828A1 - Röntgenkontrollsysteme mit grossflächigerem detektor - Google Patents
Röntgenkontrollsysteme mit grossflächigerem detektorInfo
- Publication number
- EP2021828A1 EP2021828A1 EP07728162A EP07728162A EP2021828A1 EP 2021828 A1 EP2021828 A1 EP 2021828A1 EP 07728162 A EP07728162 A EP 07728162A EP 07728162 A EP07728162 A EP 07728162A EP 2021828 A1 EP2021828 A1 EP 2021828A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- detector
- ray
- detectors
- organic
- ray control
- Prior art date
- Legal status (The legal status 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 status listed.)
- Withdrawn
Links
- 239000011159 matrix material Substances 0.000 claims description 5
- 239000010409 thin film Substances 0.000 claims description 2
- 238000007689 inspection Methods 0.000 claims 2
- 238000012544 monitoring process Methods 0.000 claims 1
- 239000010410 layer Substances 0.000 description 11
- 239000004065 semiconductor Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910021417 amorphous silicon Inorganic materials 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 239000012044 organic layer Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- XMWRBQBLMFGWIX-UHFFFAOYSA-N C60 fullerene Chemical class C12=C3C(C4=C56)=C7C8=C5C5=C9C%10=C6C6=C4C1=C1C4=C6C6=C%10C%10=C9C9=C%11C5=C8C5=C8C7=C3C3=C7C2=C1C1=C2C4=C6C4=C%10C6=C9C9=C%11C5=C5C8=C3C3=C7C1=C1C2=C4C6=C2C9=C5C3=C12 XMWRBQBLMFGWIX-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000005525 hole transport Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920000123 polythiophene Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/16—Measuring radiation intensity
- G01T1/20—Measuring radiation intensity with scintillation detectors
- G01T1/2018—Scintillation-photodiode combinations
- G01T1/20182—Modular detectors, e.g. tiled scintillators or tiled photodiodes
-
- 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
Definitions
- the invention relates to an X-ray control system with a detector improved in terms of image size.
- Control systems for objects up to 2 lxlm have a great ⁇ SEN detector.
- a provider of such a system is for example L3 Communications (www.dsxray.com).
- For such systems are used for a long Zei ⁇ lendetektor and drive the truck slowly past the detector. In this way you get cross-sectional images of the truck, which are then combined into an overview image. This is a time-consuming process and thus can not be controlled every container or truck, but only be sampled.
- Z-Backscatter Van works with a radiographic x-ray beam aimed at an object (eg container) at different angles From the backscattered X-ray quanta can be determined by nis the angle of incidence of the scanning X-ray beam, an image of the content can be reconstructed. This process is ever ⁇ but also very time consuming.
- the object of the present invention is therefore to provide an X-ray control system with which containers such as railroads and / or truck containers can be quickly and easily transilluminated.
- the invention relates to an X-ray control system comprising at least one X-ray source and an X-ray detector with readout electronics and screen, the detector being an organic photodetector.
- the organic photodiode in the layer structure with two active organic layers is formed: a Eigent ⁇ Lich photoconductive layer and a hole transport layer, which lie between two electrodes which are electrically connected together.
- this layer structure is still on a substrate and is encapsulated.
- the photoconductive organic layer may be a so-called "bulk heterojunction", for example realized as a blend of a hole-transporting polythiophene and an electron-transporting fullerene derivative.
- the organic semiconductor system in combination with a scintillator which converts the X-ray quanta into green light, detects the incident X-radiation.
- This organic photodiode can be applied over the entire surface to a cost- effective switching matrix of amorphous silicon.
- this switching matrix each pixel is driven and read out via a thin-film transistor (active matrix Activation).
- active matrix Activation These switching matrices, as used for example in TFT flat screens are very cheap to get (some € 100, -).
- the Pi ⁇ xel jacket can be up to about 500x500 ⁇ m 2 for a detector of about lOOxlOO ⁇ m. 2
- Figure 1 shows a layer structure of an organic Photodio ⁇ de. It is below the substrate 1 above the lower Elect ⁇ clear layer 2 thereon, the first photoactive organic semiconductor ⁇ conductor layer 3, for example, a hole transportation layer, which is intended only to improve the function of the detector, but is not essential necessary for construction of the detector. Above this layer is the organic photo ⁇ active layer 4, which in turn adjoins the upper electrode 5 ⁇ .
- the upper and lower electrodes 2 and 5 are connected via electrical contacts 6 and 7.
- FIG. 2 shows a construction of a large detector of several meters in size consisting of individual detector tiles 10.
- the individual detectors are, for example, pixelated detectors. With this setup even large objects such as truck containers can be checked by a single snapshot.
- FIG. 3 shows an embodiment like FIG. 2, wherein the joints between the individual detectors 10 are avoided by arranging the detectors 10 in two planes which always overlap a small distance. This makes every inch of the large object verifiable.
- FIG. 3 shows the view from above onto a kachelike, large detector surface. By arrangement as shown, the De ⁇ detectors 10 in two levels, a homogeneous detection area are generated (without joints).
- a detector size of about 70x50cm 2 would be feasible (similar to the size of the flat panel televisions). The size is limited by the available size of the switch ⁇ matrix.
- the invention relates to an X-ray control system with a detector improved in terms of image size.
- organic photodetectors are used, which can be produced over a large area and at low cost.
- the large-scale cheap detectors are then arranged so that detector surfaces arise that make whole truck containers verifiable within a very short time.
Landscapes
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geophysics (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
- Measurement Of Radiation (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006024711A DE102006024711A1 (de) | 2006-05-26 | 2006-05-26 | Röntgenkontrollsysteme mit großflächigerem Detektor |
PCT/EP2007/053697 WO2007137907A1 (de) | 2006-05-26 | 2007-04-17 | Röntgenkontrollsysteme mit grossflächigerem detektor |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2021828A1 true EP2021828A1 (de) | 2009-02-11 |
Family
ID=38255795
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07728162A Withdrawn EP2021828A1 (de) | 2006-05-26 | 2007-04-17 | Röntgenkontrollsysteme mit grossflächigerem detektor |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2021828A1 (de) |
DE (1) | DE102006024711A1 (de) |
WO (1) | WO2007137907A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008049702A1 (de) * | 2008-09-30 | 2010-04-08 | Siemens Aktiengesellschaft | Messgerät zur Messung der Strahlendosis und Verwendung davon |
CN108369282B (zh) | 2015-11-11 | 2021-10-19 | 西门子保健有限责任公司 | 用于检测入射的x射线的探测器元件 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2652655A1 (fr) * | 1989-10-04 | 1991-04-05 | Commissariat Energie Atomique | Dispositif matriciel de grandes dimensions pour la prise ou la restitution d'images. |
US6278055B1 (en) * | 1998-08-19 | 2001-08-21 | The Trustees Of Princeton University | Stacked organic photosensitive optoelectronic devices with an electrically series configuration |
JP2003050280A (ja) * | 2001-08-03 | 2003-02-21 | Konica Corp | 放射線画像検出器 |
KR100483314B1 (ko) * | 2002-03-23 | 2005-04-15 | 학교법인 인제학원 | 디지털 엑스레이 이미지 디텍터 |
US20040067324A1 (en) * | 2002-09-13 | 2004-04-08 | Lazarev Pavel I | Organic photosensitive optoelectronic device |
DE10244178A1 (de) * | 2002-09-23 | 2004-04-08 | Siemens Ag | Röntgendetektor aus einem Szintillator mit Fotosensorbeschichtung und Herstellungsverfahren |
CN100437096C (zh) * | 2003-10-16 | 2008-11-26 | 清华大学 | 一种用于集装箱检查系统的双辐射源框架结构 |
US7046763B2 (en) * | 2003-12-23 | 2006-05-16 | General Electric Company | Field and factory testable imaging detector |
DE102004026618A1 (de) * | 2004-06-01 | 2005-12-29 | Siemens Ag | Röntgendetektor |
-
2006
- 2006-05-26 DE DE102006024711A patent/DE102006024711A1/de not_active Ceased
-
2007
- 2007-04-17 EP EP07728162A patent/EP2021828A1/de not_active Withdrawn
- 2007-04-17 WO PCT/EP2007/053697 patent/WO2007137907A1/de active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2007137907A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE102006024711A1 (de) | 2007-11-29 |
WO2007137907A1 (de) | 2007-12-06 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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17P | Request for examination filed |
Effective date: 20081124 |
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AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL BA HR MK RS |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: RUDOLPH, OLIVER Inventor name: HENSELER, DEBORA Inventor name: FUERST, JENS |
|
17Q | First examination report despatched |
Effective date: 20090916 |
|
DAX | Request for extension of the european patent (deleted) | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20100916 |