CN205450296U - Low electric capacity silicon pixel detector - Google Patents
Low electric capacity silicon pixel detector Download PDFInfo
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- CN205450296U CN205450296U CN201620259382.4U CN201620259382U CN205450296U CN 205450296 U CN205450296 U CN 205450296U CN 201620259382 U CN201620259382 U CN 201620259382U CN 205450296 U CN205450296 U CN 205450296U
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- detector
- central part
- connecting portion
- pixel cell
- pixel
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Abstract
The utility model relates to a low electric capacity silicon pixel detector, the pixel electrode package of detector draw together central part, a plurality of connecting portion and a plurality of peripheral portion, and the central part passes through connecting portion and connects peripheral portion, and connecting portion are peripheral at the central part along the circumference equipartition with periphery portion, central part, connecting portion and a periphery formation detector pixel electrode, and the upper surface that the effective area of pixel electrode is less than pixel amasss. The utility model discloses an advantage embodies: under the prerequisite that keeps the effective volume invariant of detector, reach the electric capacity that reduces the detector through the effective area who reduces the detector electrode, reduce the noise, and then reduce the noise and improve the SNR, the spectrometer is applied to and the resolution ratio of spectrometer to the energy can be improves.
Description
Technical field
This utility model relates to a kind of silicon pixel detector, is specifically related to a kind of low capacitive silicon pixel detector.
Background technology
Effective electrode area on the pixel cell of traditional silicon pixel detector is consistent with the top surface area of pixel cell, and the effective area of electrode is crossed conference and caused noise signal to noise ratio excessive, and detector is too low to the resolution of energy.
Utility model content
The purpose of this utility model is for deficiency of the prior art, it is provided that a kind of low electric capacity, low noise, high-resolution silicon pixel detector.
For achieving the above object, the utility model discloses following technical scheme:
A kind of low capacitive silicon pixel detector, the pixel cell electrode of detector includes central part, some connecting portions and some outer parts, central part connects outer part by connecting portion, connecting portion and outer part are uniformly distributed along the circumference peripheral at central part, central part, connecting portion and outer part form detector pixel cell electrode, and the effective area of pixel cell electrode is less than the top surface area of pixel cell；
Described central part is circular, and connecting portion is rod, and outer part is the circular arc with central part as the center of circle, and outer part two ends are also circular arc.
As the preferred technical scheme of one, described pixel cell be bottom surface be orthohexagonal prism, the length of side 525 microns, high 500 microns, the thickness of positive and negative electrode is 1 micron, and central part radius is 85 microns, connecting minister 221 microns, outer part two ends arc radius is 50 microns.
As the preferred technical scheme of one, effective area is pixel cell top surface area 1/3～the 1/2 of described pixel cell electrode.
Disclosed in this utility model, a kind of low capacitive silicon pixel detector, has the advantages that
On the premise of keeping detector effective volume constant, reach to reduce the electric capacity of detector by reducing the effective area of detector electrodes, reduce noise, and then reduction noise improves signal to noise ratio, is applied to energy disperse spectroscopy and can improve the energy disperse spectroscopy resolution to energy.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Description of reference numerals:
1. pixel cell, 2. outer part, 3. connecting portion, 4. central part.
Detailed description of the invention
Below in conjunction with embodiment and referring to the drawings this utility model is further described.
Refer to Fig. 1.
A kind of low capacitive silicon pixel detector, the pixel cell electrode of detector includes central part 4, some connecting portions 3 and some outer parts 2, central part 4 connects outer part 2 by connecting portion 3, connecting portion 3 and outer part 2 are uniformly distributed along the circumference peripheral at central part 4, central part 4, connecting portion 3 and outer part 2 form detector pixel cell electrode, and the effective area of pixel cell electrode is less than the top surface area of pixel cell 1.
Described central part 4 is circular, and connecting portion 3 is rod, and outer part 2 is the circular arc with central part 4 as the center of circle, and outer part 2 two ends are also circular arc.
Preferably, described pixel cell 1 is orthohexagonal prism for bottom surface, and the length of side 525 microns is high 500 microns, and the thickness of positive and negative electrode is 1 micron, and central part radius is 85 microns, connects minister 221 microns, and outer part two ends arc radius is 50 microns.
Preferably, the effective area of described pixel cell electrode is the 1/3～1/2 of pixel cell 1 top surface area.
This utility model is on the premise of keeping detector effective volume constant, the electric capacity of detector is reached to reduce by reducing the effective area of detector electrodes, reduce noise, and then reduce noise raising signal to noise ratio, be applied to energy disperse spectroscopy and can improve the energy disperse spectroscopy resolution to energy.
The above is only preferred implementation of the present utility model, is not intended to limit；Should be understood that, although this utility model being described in detail with reference to the various embodiments described above, it will be understood by those within the art that, the technical scheme described in the various embodiments described above still can be modified by it, or the most some or all of technical characteristic is carried out equivalent；And these amendments and replacement, do not make the essence of corresponding technical scheme depart from the scope of this utility model each embodiment technical scheme.
Claims (3)
1. one kind low capacitive silicon pixel detector, it is characterized in that, the pixel cell electrode of detector includes central part, some connecting portions and some outer parts, central part connects outer part by connecting portion, connecting portion and outer part are uniformly distributed along the circumference peripheral at central part, central part, connecting portion and outer part form detector pixel cell electrode, and the effective area of pixel cell electrode is less than the top surface area of pixel cell；
Described central part is circular, and connecting portion is rod, and outer part is the circular arc with central part as the center of circle, and outer part two ends are also circular arc.
One the most according to claim 1 low capacitive silicon pixel detector, it is characterized in that, described pixel cell be bottom surface be orthohexagonal prism, the length of side 525 microns, high 500 microns, the thickness of positive and negative electrode is 1 micron, and central part radius is 85 microns, connecting minister 221 microns, outer part two ends arc radius is 50 microns.
One the most according to claim 1 low capacitive silicon pixel detector, it is characterised in that effective area is pixel cell top surface area 1/3～the 1/2 of described pixel cell electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620259382.4U CN205450296U (en) | 2016-03-31 | 2016-03-31 | Low electric capacity silicon pixel detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620259382.4U CN205450296U (en) | 2016-03-31 | 2016-03-31 | Low electric capacity silicon pixel detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205450296U true CN205450296U (en) | 2016-08-10 |
Family
ID=56608662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620259382.4U Expired - Fee Related CN205450296U (en) | 2016-03-31 | 2016-03-31 | Low electric capacity silicon pixel detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205450296U (en) |
-
2016
- 2016-03-31 CN CN201620259382.4U patent/CN205450296U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160810 Termination date: 20210331 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |