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Hybrid X-Ray Detectors Implemented By Means Of Soft Sintering Of Two Or More Intermixed Powders

A powder mixture and detector technology, applied in X/γ/cosmic radiation measurement, radiation measurement, radiation intensity measurement, etc., can solve problems such as not describing the production method

Inactive Publication Date: 2017-06-20
SIEMENS HEALTHCARE GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0015] A hybrid detector is also available from US 8,759,781 B2, but the method of production is not described here

Method used

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  • Hybrid X-Ray Detectors Implemented By Means Of Soft Sintering Of Two Or More Intermixed Powders
  • Hybrid X-Ray Detectors Implemented By Means Of Soft Sintering Of Two Or More Intermixed Powders
  • Hybrid X-Ray Detectors Implemented By Means Of Soft Sintering Of Two Or More Intermixed Powders

Examples

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example 1

[0109] For the production of X-ray detection coatings, powders from PCBM and P3HT, both having an average particle size of 40 μm determined by means of scanning electron microscopy, and powders from GOS were mixed in a weight ratio of 1:1:8 size and a maximum particle size of 100 μm, GOS has an average particle size of 1.8 μm determined by means of scanning electron microscopy, which is based on mixing with a high-speed mixer in an inert gas atmosphere after precooling at -20 °C for 15 min. 3000rpm for 15s of mixing.

[0110] The mixed powders were applied to a plurality of diodes as substrates on which ITO electrodes having a thickness of 120 nm had been applied, and sintered at 140° C. and a pressure of ~150 MPa for 15 min. The hybrid coating obtained in this way had a layer thickness of 160 μm and a size of 2.5 cm×2.5 cm. Subsequently, an Al electrode with a thickness of 100 nm was applied to the hybrid coating and thus joined thereto.

[0111] The detector obtained in th...

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Abstract

A method for the production of a powder mixture includes at least one organic semiconductor material and at least one first scintillator. A method for the production of a detector using the powder mixture and a detector produced by way of this method are also disclosed.

Description

technical field [0001] The invention relates to a powder mixture comprising at least one organic semiconducting material and at least one first scintillator, a method for producing a powder mixture comprising at least one organic semiconducting material and at least one first scintillator, for using the Method for producing detectors from powder mixtures and detectors produced by means of this method. Background technique [0002] Today, digital X-ray images are preferably recorded with an indirect converter comprising, for example, a CsI scintillator coating applied to the a-Si photodetector substrate. Alternatively, direct converters such as eg a-Se are also used, especially in applications requiring high resolution such as mammography. [0003] Therefore, the prior art is represented by detectors based on amorphous silicon (indirect conversion) and amorphous selenium (direct conversion). The principle of direct conversion is shown in the figure 1 and the principle of i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/02G01T1/00
CPCC09K11/025G01T1/003G01T1/2018G01T1/20B05D3/007B05D3/12
Inventor R·菲舍尔A·卡尼茨O·施密特S·希兹科斯基S·F·特德
Owner SIEMENS HEALTHCARE GMBH