CN204575859U - The dull and stereotyped sniffer of a kind of power spectrum-DR - Google Patents
The dull and stereotyped sniffer of a kind of power spectrum-DR Download PDFInfo
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- CN204575859U CN204575859U CN201520200066.5U CN201520200066U CN204575859U CN 204575859 U CN204575859 U CN 204575859U CN 201520200066 U CN201520200066 U CN 201520200066U CN 204575859 U CN204575859 U CN 204575859U
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Abstract
The utility model is applicable to medical instruments field, provides the dull and stereotyped sniffer of a kind of power spectrum-DR, comprising: at least two-layer tft array substrate, X ray filter plate, the sequential control be connected with each tft array substrate and data reading circuit; Described X ray filter plate is arranged between every adjacent two layers tft array substrate, for filtering the X ray of corresponding energy level; Described sequential control and data reading circuit, for controlling described tft array substrate work and carrying out data transmission.The utility model adds X ray filter plate in the middle of two-layer tft array substrate, the photon of every layer of tft array substrate to different-energy is made to have maximum susceptibility and absorption, filtration, and then low energy and high-energy ray are detected respectively, effectively can reduce picture noise, multilayer laminate constructions can detect high energy and low energy ray, the various X-ray energy spectrum of meticulous differentiation.
Description
Technical field
The utility model belongs to medical instruments field, particularly relates to the dull and stereotyped sniffer of a kind of power spectrum-DR.
Background technology
Current DR flat panel detector (Digital Radiography, digital radiography detector) only adopt one piece of tft array substrate, at X ray by after human body, tft array substrate becomes electric signal, this electric signal is shown after treatment over the display, this kind of imaging of imaging system to low energy and sigmatron can not be distinguished, and picture noise is high simultaneously, needs to use a large amount of image processing algorithms to carry out denoising to the signal collected.Existing flat board-DR detector is all the imaging of employing one piece of tft array substrate detecting x-ray, as shown in Figure 1.
X-ray is the same with microwave, visible ray, ultraviolet etc., and its essence is all electromagnetic wave.The x-ray produced by X-ray tube is single power spectrum not, but comprise characteristic spectrum and continuous spectrum two parts, the characteristic spectrum of x-ray can make best explain by quantum theory, namely when the high energy beam current electronics bombardment target pole that X-ray tube produces, the inner electron of target pole atom departs from original track, outer-shell electron produces radiation transistion when filling this room, and the energy of radiated photons depends on the energy level difference before and after transition, and the frequency of radiated photons or wavelength have the numerical value determined to the material determined.(that is: the line electronics of high-speed motion and target collide and obtain very large negative acceleration, produce electromagnetic field jumpy, namely electromagnetic radiation around it in bremsstrahlung for the continuum source of x-ray.Because the energy variation of collision process and condition and each collision is all random, so generation is wavelength difference and continuous print radiation, i.e. bremsstrahlung), namely high energy electron enters near target atom core, be a significant slowdown by atomic nucleus electric field action, the energy of loss radiate with the form of X-ray, because high-velocity electrons are different from the interactional situation of atomic nucleus electric field, thus X-ray given off has various energy, thus formation continuous spectrum, its wavelength coverage, at 0.01-10nm, because of the difference of wavelength or frequency, can be divided into different power spectrums.
Between exposure period, X-ray converts visible ray through after human body to through scintillator, the tft array substrate of flat panel detector starts to carry out integration to visible ray, and the view data of pixel each on tft array substrate reads by data reading circuit afterwards, then image is passed to workstation.Because the imaging of all X-ray energy spectrums is all on same tft array substrate, the flat panel detector of this kind of framework can not detect respectively to low energy and sigmatron, and from clinical medicine angle, the image soft tissue contrast of collection is good not.
Utility model content
Technical problem to be solved in the utility model is to provide the dull and stereotyped sniffer of a kind of power spectrum-DR, when being intended to detect low energy and high-energy ray respectively, solve the high and low energy of picture noise of existing dull and stereotyped sniffer together with high-energy ray image blend, the imperfect problem of image soft tissue contrast of collection.
The utility model is achieved in that the dull and stereotyped sniffer of a kind of power spectrum-DR, comprising: at least two-layer tft array substrate, X ray filter plate, the sequential control be connected with each tft array substrate and data reading circuit;
Described X ray filter plate is arranged between every adjacent two layers tft array substrate, for filtering the X ray of corresponding energy level;
Described sequential control and data reading circuit, for controlling described tft array substrate work and carrying out data transmission.
Further, described sequential control and data reading circuit comprise:
Sequential control circuit, for the gate circuit control chip of control TFT each row pixel work;
Data reading circuit, for controlling the read data chip of each layer tft array substrate;
Data transmission circuit, for control data transmission.
Further, described tft array substrate comprises photo-sensitive cell and tft array.
Further, described X ray filter plate is copper filter plate.
Further, described X ray filter plate is aluminium filter plate.
The utility model compared with prior art, beneficial effect is: the utility model adds X ray filter plate in the middle of two-layer tft array substrate, the photon of every layer of tft array substrate to different-energy is made to have maximum susceptibility and absorption, filtration, and then low energy and high-energy ray are detected respectively, effectively can reduce picture noise, multilayer laminate constructions can detect high energy and low energy ray, the various X-ray energy spectrum of meticulous differentiation.
Accompanying drawing explanation
Fig. 1 is the circuit framework figure of the flat panel detector that prior art provides.
Fig. 2 is the stacked schematic diagram of tft array substrate of the dull and stereotyped sniffer of a kind of power spectrum-DR that the utility model embodiment one provides.
Fig. 3 is the stacked schematic diagram of tft array substrate of the dull and stereotyped sniffer of a kind of power spectrum-DR that the utility model embodiment two provides.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 2, for the dull and stereotyped sniffer of a kind of power spectrum-DR that the utility model embodiment one provides, comprise: two-layer tft array substrate 1, one deck X ray filter plate 2, the sequential control be connected with tft array substrate and data reading circuit 3, tft array substrate 1 comprises photo-sensitive cell (not shown) and tft array (not shown), sequential control and data reading circuit 3 comprise: for the sequential control circuit (not shown) of the GATE IC (gate circuit control chip) that each row of control TFT pixel is opened, for the data reading circuit (not shown) of control READ IC (read data chip), and for data transmission data transmission circuit (not shown), described data transmission circuit is by Internet Transmission or optical transport.In the present embodiment, X ray filter plate 2 is Cu filter plate (copper filter plate), also can use aluminium filter plate in actual applications, can reach identical effect equally.
The present embodiment adds middle Cu filter plate by 2 layers of tft array substrate, completes the detection of low energy and high endothelial venules.Top layer TFT is imaged as LKV (low kilovolt) radial imaging, interlayer Cu copper billet is by LKV (low kilovolt) ray filtering, make GKV (high kilovoltage) Radiolucent, bottom TFT is imaged as GKV (high kilovoltage) radial imaging, so both obtained high low energy data for projection, and dual intensity CT reconstruction had been carried out to data and both can complete the object that high low energy radial imaging is detected.
Due to the progress of semiconductor technology, tft array substrate is more and more thinner, it is even thinner that the tft array substrate that market today occurs is as thin as 0.7mm, in order to reach the object of the various X-ray energy spectrum of meticulous differentiation, the stacked mode can being arranged to multilayer laminate constructions of flat panel detector, do not affect the volume of whole flat panel detector simultaneously, according to above-mentioned principle, Fig. 3 shows the dull and stereotyped sniffer of a kind of power spectrum-DR that the utility model embodiment two provides, comprise multilayer tft array substrate 1, Cu filter plate 2 between every adjacent two layers tft array substrate 1, the sequential control be connected with each tft array substrate and data reading circuit 3, the multilayer laminated structure that the present embodiment provides better can distinguish the imaging of each X-ray energy spectrum.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (5)
1. the dull and stereotyped sniffer of power spectrum-DR, is characterized in that, comprising: at least two-layer tft array substrate, X ray filter plate, the sequential control be connected with each tft array substrate and data reading circuit;
Described X ray filter plate is arranged between every adjacent two layers tft array substrate, for filtering the X ray of corresponding energy level;
Described sequential control and data reading circuit, for controlling described tft array substrate work and carrying out data transmission.
2. the dull and stereotyped sniffer of power spectrum-DR as claimed in claim 1, it is characterized in that, described sequential control and data reading circuit comprise:
Sequential control circuit, for the gate circuit control chip of control TFT each row pixel work;
Data reading circuit, for controlling the read data chip of each layer tft array substrate;
Data transmission circuit, for control data transmission.
3. the dull and stereotyped sniffer of power spectrum-DR as claimed in claim 1, it is characterized in that, described tft array substrate comprises photo-sensitive cell and tft array.
4. the dull and stereotyped sniffer of power spectrum-DR as claimed in claim 1, it is characterized in that, described X ray filter plate is copper filter plate.
5. the dull and stereotyped sniffer of power spectrum-DR as claimed in claim 1, it is characterized in that, described X ray filter plate is aluminium filter plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520200066.5U CN204575859U (en) | 2015-04-03 | 2015-04-03 | The dull and stereotyped sniffer of a kind of power spectrum-DR |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520200066.5U CN204575859U (en) | 2015-04-03 | 2015-04-03 | The dull and stereotyped sniffer of a kind of power spectrum-DR |
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| CN204575859U true CN204575859U (en) | 2015-08-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111190216A (en) * | 2020-01-23 | 2020-05-22 | 中国工程物理研究院激光聚变研究中心 | Radiation flow detector array |
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2015
- 2015-04-03 CN CN201520200066.5U patent/CN204575859U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111190216A (en) * | 2020-01-23 | 2020-05-22 | 中国工程物理研究院激光聚变研究中心 | Radiation flow detector array |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CB03 | Change of inventor or designer information |
Inventor after: Guo Xiaobing Inventor after: Shen Aixiang Inventor after: Jiang Wei Inventor before: Guo Zibing Inventor before: Shen Aixiang Inventor before: Jiang Wei |
|
| COR | Change of bibliographic data | ||
| CP03 | Change of name, title or address |
Address after: 518000, Room 408, building A, Hua Han Innovation Park, Nanshan District, Shenzhen, Guangdong Patentee after: SHENZHEN ANGELL TECHNOLOGY CO., LTD. Address before: 518000 Hua Han Road, 16, Nanshan District, Guangdong, Shenzhen Province, China Han technology, 3A Patentee before: Shenzhen Angell Technology Co., Ltd. |