CN2537985Y - Multi-path X-ray detector - Google Patents
Multi-path X-ray detector Download PDFInfo
- Publication number
- CN2537985Y CN2537985Y CN02210330U CN02210330U CN2537985Y CN 2537985 Y CN2537985 Y CN 2537985Y CN 02210330 U CN02210330 U CN 02210330U CN 02210330 U CN02210330 U CN 02210330U CN 2537985 Y CN2537985 Y CN 2537985Y
- Authority
- CN
- China
- Prior art keywords
- housing
- clamping plate
- ray detector
- plate
- board
- 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.)
- Expired - Fee Related
Links
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000011521 glass Substances 0.000 claims abstract description 23
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 13
- 229910052751 metal Inorganic materials 0.000 claims abstract description 7
- 239000002184 metal Substances 0.000 claims abstract description 7
- 238000003466 welding Methods 0.000 claims abstract description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052802 copper Inorganic materials 0.000 claims abstract description 5
- 239000010949 copper Substances 0.000 claims abstract description 5
- 239000007789 gas Substances 0.000 claims description 16
- 239000011261 inert gas Substances 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 4
- 239000011148 porous material Substances 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims description 3
- 239000002131 composite material Substances 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract description 2
- 239000000853 adhesive Substances 0.000 abstract 2
- 230000001070 adhesive effect Effects 0.000 abstract 2
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 239000013585 weight reducing agent Substances 0.000 abstract 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical group [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 7
- 229910052750 molybdenum Inorganic materials 0.000 description 6
- 239000011733 molybdenum Substances 0.000 description 6
- 210000003027 ear inner Anatomy 0.000 description 5
- 230000009466 transformation Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229910052715 tantalum Inorganic materials 0.000 description 4
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 239000000499 gel Substances 0.000 description 3
- 238000012216 screening Methods 0.000 description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 235000015111 chews Nutrition 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000009304 pastoral farming Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model relates to a multi-path X-ray detector which belongs to the technical field of the digital medical treatment. The utility model is composed of a shell body, a shell cover, a circuit board, a rigid clamping board, an organic glass clamping board, a high voltage polar board and a signal reception polar board, wherein one sealing container is formed after the shell body and the shell cover are combined; a detector core is fixed in the shell body; the signal reception polar board of the detector is a composite type polar board; high resistance insulating adhesive is coated on both sides of a metal base board; nickel or copper metal layers are covered outside the insulating adhesive. Nickel sheets are arranged on the leading out end of the high voltage polar board in a spot welding mode and are connected with a power supply after connected in parallel. The leading out end of a shielding polar is that nickel wires are welded to the middle layer of the signal reception polar board and are connected by conducting wires. A signal leading out wire is connected with the circuit board; the upper and the lower layers of the circuit board are shielding layers. The utility model has the advantages of small volume, compact structure, weight reduction, maximum crest cost reduction, etc., and the spatial resolution, the density resolution and the conversion efficiency are increased.
Description
Affiliated technical field
The utility model belongs to the digital medical technical field, particularly a kind of X ray computer laminagraph device hyperchannel X-ray detector of (being called for short the CT machine) that is applied to.
Background technology
Detecting device is the critical component on the CT machine, the quality of CT machine scanning imagery quality, at hardware aspect, 1, the quality that depends on detecting device on the very big composition, and the quality that detecting device is made is determined by following these characteristics: capacitive such as, 2, insulativity, 3, each passage conduction consistance, 4, purification property, 5, resistance to pressure.
It is one of critical component of detecting device that signal receives pole plate, and its structure mainly contains full molybdenum structure at present; Cover copper sheet, tantalum piece structure; The five-layer structure that machinery is compound; The structure of the normal five layer signal pole plates that adopt is by middle layer (earthing pole) molybdenum in the world, two sides are insulation courses, outermost is two-layer to be nickel dam (pickup electrode), and earthing pole is drawn by the special construction of conductive rubber and pole plate and realized that there is following problem in this five layer signal pole plates:
1, five layer signal pole plates are to make with mechanical composite methods, satisfy insulativity, electric conductivity, grazing, surfaceness requirement, and technology difficulty is big;
2, the thickness owing to five layers of pole plate making of mechanical complex method is thicker, and generally at 0.28～0.30mm, under the condition of identical sheet spacing, ionization chamber diminishes, and transmitted intensity dies down, and the detecting device transformation efficiency is low; Because what existing X-ray detector adopted is five layers of compound pole plate of machinery, thereby there is big, withstand voltage low, the problem that influences spatial resolution, density resolution and transformation efficiency of volume.
3, extension line adopts conductive rubber, material cost height.
4, in order to guarantee the reliability of extension line, on five layer signal pole plates, adopt special construction, thereby make this electrode plate structure complexity.
Summary of the invention
The low problem of spatial resolution, density resolution and transformation efficiency at existing X-ray detector existence, the utility model provides a kind of hyperchannel X---ray detector, to improve spatial resolution, density resolution and the transformation efficiency of detecting device, and reduce cost significantly, improve the ratio of performance to price of CT machine.
The utility model receives pole plate by housing, cap, wiring board, rigidity clamping plate, organic glass clamping plate, high-pressure polar plate, signal and forms.
Housing is a groove shape arc, the cap shape is identical with housing, between housing and cap, wiring board is housed, after closing, housing and cap use bolt, fluted with the junction of cap on housing, O-ring seal is housed in the groove, housing and the cap back of closing is constituted an airtight container, be filled with inert gas therein, room pressure is generally 16-24 atmospheric pressure.Two ends at this closed container promptly are equipped with rain glass and air pressure valve respectively at the two ends of housing.Rain glass and air pressure valve are by a web member and the labyrinth on being contained in housing is filtered gas and chewed and be connected, labyrinth filtration gas is chewed and is screw-like, head is a sheet plug, screw rod is the hollow external thread, in the centre filter core that is used for filtering gas is housed, the position near the sheet plug on screw rod has pore, this gas is chewed be contained on the housing, its screw thread extension is connected with web member, loads onto rain glass or air pressure valve at the other end of web member.Upper and lower rigidity clamping plate are housed in housing, the end of upper and lower rigidity clamping plate is fixed by bolts on the housing, the holddown spring of arrangement is housed between last rigidity clamping plate and cap, upper and lower have utmost point glass clamping plate to be separately fixed on rigidity clamping plate and the following rigidity clamping plate, end block also is housed in the middle of upper and lower organic glass clamping plate, set bolt passes end block from top to bottom and plays fixation, have some equidistant grooves on the organic glass clamping plate, high-pressure polar plate and signal receive pole plate and are installed at interval in the groove of organic glass clamping plate.
In the middle of the high-pressure polar plate that the utility model adopts is molybdenum plate, and two sides are tantalum, and wherein molybdenum plate thickness is 0.2mm, and tantalum is 1-5 μ.It is compound pole plate that the signal that the utility model adopts receives pole plate, applies the high resistant insulating gel in the metal substrate two sides, and metal substrate can select tantalum, tungsten, molybdenum, and insulation values reaches 1 * 10
11---1 * 10
12Ω; Adopt physical gas-phase deposite method or chemical method, nickel or copper under vacuum state, are sputtered on the coated high resistant insulating gel surface, the conductive layer surface roughness reaches
Flatness reaches ± and 0.01, whole electrode thickness is at 0.18-0.23mm.
Adopt unique extension line mode: drawing of high-pressure stage adopts the weld metal connection mode to draw.At first, when making high-pressure polar plate, at exit spot welding nickel sheet, during connection the nickel sheet is curved 90 °, overlap joint welds with scolding tin successively, will be contained in each the high-pressure polar plate parallel connection in the organic glass clamping plate in fact exactly, is connected with high-voltage power supply then; Drawing of screening electrode is the middle layer spot welding nickel wire that receives pole plate at signal, connects with lead; Drawing of signal adopts soldered wires to draw the mode that combines with wiring board, each signal receives pole plate and all draws 2 road signals, with lead signal is guided on the wiring board, at the inside of wiring board cabling, by being contained in the extension line socket on the wiring board, signal is drawn out on the web member, because detecting device output is simulating signal, so it is, interference-free to guarantee signal the upper and lower two-layer screen layer of doing of wiring board.
The utility model compact conformation has alleviated the weight of detecting device, has dwindled volume, reduces cost significantly, has improved spatial resolution, density resolution and transformation efficiency.
Description of drawings
Fig. 1 is an outside drawing of the present utility model,
Fig. 2 is an one-piece construction synoptic diagram of the present utility model,
Fig. 3 is the utility model receiving pole plate structure synoptic diagram,
Fig. 4 be the B-B of Fig. 2 to cut-open view,
Fig. 5 is the utility model pole plate scheme of installation in the organic glass clamping plate,
Fig. 6 is the synoptic diagram of the utility model pole plate extension line,
Fig. 7 is the mounting structure synoptic diagram of the utility model housing upward pressure table and air pressure valve.
Among the figure: 1 housing, 2 caps, 3 tensimeters, 4 air pressure valves, rigidity clamping plate on 5,6 times rigidity clamping plate, 7 O-ring seals, 8 wiring boards, 9 organic glass clamping plate, 10 end blocks, 11 high-pressure polar plates, 12 receive pole plate, 13 bolts, 14 molybdenum plates, 15 high resistant insulating gels, 16 nickel or copper layer, 17 high-pressure stage extension lines, 18 screening electrode extension lines, 19 signal extension lines, 20 labyrinths are filtered gas and are chewed, 21 filter cores, 22 web members, 23 pores.
Embodiment
With 688 road X---ray detector is an example:
Consult Fig. 1, Fig. 2, the utility model profile is an arc, length is 1068.9mm, arc radius R is 1140mm, width is 91mm, rain glass 3 and air pressure valve 4 are housed at the two ends of arc detector, the structure of detecting device is consulted Fig. 4, the detecting device container is made up of housing 1, cap 2, and housing 1 and cap 2 are fixing by bolt 13, between housing 1 and cap 2 wiring board 8 are housed, on the housing 1 with cap 2 on the junction fluted, O-ring seal 7 is housed in the groove, forms the container of a sealing after housing 1 closes with cap 2, be filled with the inert gas xenon in the container.Organic glass clamping plate 9 stick with glue and are connected on rigidity clamping plate 5 and the following rigidity clamping plate 6, in the middle of the organic glass machine plate 9 end block 10 is being set up and down, in detecting device closed container space, bolt 13 is fixed on the housing by the whole detecting device core body that last rigidity clamping plate 5, organic glass clamping plate 9, end block 10 and following rigidity clamping plate 6 form.Consult Fig. 5, high-pressure polar plate 11 of the present utility model and signal receive 12 and are installed in the groove of organic glass clamping plate 9 at interval, present embodiment is that pole plate is bonded in the groove of organic glass clamping plate 9, and wherein high-pressure polar plate is installed 345, and signal receives pole plate and installs 344.Polar plate spacing is 1.38mm.The pole plate extension line is consulted Fig. 6, and drawing of high-pressure stage is exit spot welding nickel sheet at high-pressure polar plate 11, and the nickel sheet is curved 90 °, and overlap joint welds with scolding tin successively, is about to join with high-voltage power supply after all high-pressure polar plate parallel connections; Drawing of screening electrode is spot welding nickel wire 18 on the middle layer molybdenum plate 14 of signal reception pole plate 12; Drawing of signal drawn 2 road signals on each signal reception pole plate 12; With lead signal exit 19 is connected with wiring board 8, the upper and lower two-layer of wiring board 8 is screen layer.Consult Fig. 7, tensimeter 3 that install at detecting device housing 1 two ends and air pressure valve 4 are contained in labyrinth filtration gas by web member 22 and chew on 20.Filling inert gas in the detecting device container at first filters gas through the labyrinth and chews 20 filter core 21 and filter, impurity in the gas can not be entered, and fill into gas is to enter the detecting device container through filter core 21 backs from gas is chewed the pore 23 of 20 sides, makes gas become laminar flow by turbulent flow, better effects if.
Claims (8)
1, a kind of hyperchannel X---ray detector, by housing, cap, wiring board, the rigidity clamping plate, the organic glass clamping plate, high-pressure polar plate, signal receives pole plate and forms, it is characterized in that housing is a groove shape arc, between cap and the housing wiring board is housed, after closing, housing and cap constitute an airtight container, on in housing, being equipped with, following rigidity clamping plate, on, following organic glass clamping plate are separately fixed on rigidity clamping plate and the following rigidity clamping plate, have some equidistant grooves on the organic glass clamping plate, high-pressure polar plate and signal receive pole plate and are installed at interval in the groove of organic glass clamping plate, it is compound pole plate that the signal that this detecting device adopted receives pole plate, in the metal substrate two sides high resistant insulating gel is arranged, the insulating gel outside surface is nickel or copper metal layer, and electrode thickness is at 0.18-0.23mm; Be connected with high-voltage power supply after every high-pressure polar plate exit point is welded with the parallel connection of nickel sheet, receiving the pole plate middle layer at signal has the nickel wire of spot welding to be connected with lead; Each block signal receives pole plate has 2 road signal extension lines to be connected with wiring board, and the inner cabling of wiring board is connected with web member by the extension line socket that is contained on the wiring board; The upper and lower two-layer of wiring board is screen layer.
2, hyperchannel X according to claim 1---ray detector is characterized in that having groove in the junction of housing and cap, and O-ring seal is housed in the groove.
3, hyperchannel X according to claim 1 and 2---ray detector is characterized in that also being filled with inert gas in the closed container that said cap and housing constitute, and the container internal gas pressure is a 16-24 atmospheric pressure.
4, hyperchannel X according to claim 1---ray detector is characterized in that said high-pressure polar plate parallel connection is that nickel sheet with the spot welding of high-pressure polar plate exit curves 90 °, and overlap joint welds the back and is connected with power supply by lead successively.
5, hyperchannel X-ray detector according to claim 1 is characterized in that end block is arranged in the middle of upper and lower organic glass clamping plate.
6, hyperchannel X-ray detector according to claim 1 is characterized in that constituting an airtight container after said housing and cap close, and is filled with inert gas in airtight container, and gas filling valve and tensimeter are equipped with in the housing two ends.
7, hyperchannel X-ray detector according to claim 6 is characterized in that tensimeter and gas filling valve on the said detecting device housing filters gas by web member and labyrinth and chew to be connected and be contained on the housing.
8, hyperchannel X-ray detector according to claim 7, it is characterized in that said labyrinth filters gas and chew and be that screw-like, head are sheet plugs, screw rod is hollow, external thread, in the centre filter core is housed, the position near the sheet plug on screw rod has pore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02210330U CN2537985Y (en) | 2002-04-19 | 2002-04-19 | Multi-path X-ray detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02210330U CN2537985Y (en) | 2002-04-19 | 2002-04-19 | Multi-path X-ray detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2537985Y true CN2537985Y (en) | 2003-02-26 |
Family
ID=33690492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02210330U Expired - Fee Related CN2537985Y (en) | 2002-04-19 | 2002-04-19 | Multi-path X-ray detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2537985Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016070648A1 (en) * | 2014-11-05 | 2016-05-12 | 同方威视技术股份有限公司 | Rotary arc-shaped detector box for x-ray checking device |
| CN117912928A (en) * | 2024-03-15 | 2024-04-19 | 中国科学院上海高等研究院 | Gas ionization chamber |
-
2002
- 2002-04-19 CN CN02210330U patent/CN2537985Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016070648A1 (en) * | 2014-11-05 | 2016-05-12 | 同方威视技术股份有限公司 | Rotary arc-shaped detector box for x-ray checking device |
| CN117912928A (en) * | 2024-03-15 | 2024-04-19 | 中国科学院上海高等研究院 | Gas ionization chamber |
| CN117912928B (en) * | 2024-03-15 | 2024-05-24 | 中国科学院上海高等研究院 | Gas ionization chamber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: PHILIPS ( CHINA )INVESTMENT CO., LTD. Free format text: FORMER OWNER: DONGRUI DIGITAL MEDICAL SYSTEM CO., LTD., SHENYANG Effective date: 20050121 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20050121 Address after: West Tianmu Road 200070 Shanghai City No. 218 layer 20-22 Patentee after: Philip (China) Investment Co., Ltd. Address before: 110179 Liaoning Province, Shenyang Hunnan hi tech Industrial Development Zone, East Software Park Patentee before: Shenyang Dongruan Digital Medical System Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: PHILIPS AND NEUSOFT MEDICAL SY Free format text: FORMER OWNER: PHILIPS ( CHINA )INVESTMENT CO., LTD. Effective date: 20050805 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20050805 Address after: The 110179 century Shenyang Hunnan New District Road No. 16 Patentee after: Dongruan Philips Medical Equipment and System Co., Ltd. Address before: West Tianmu Road 200070 Shanghai City No. 218 layer 20-22 Patentee before: Philip (China) Investment Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030226 Termination date: 20110419 |