Semiconductor pixel detector with absorption grid as a tool for charge sharing studies and energy resolution improvement

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21670%2F11%3A00185320" target="_blank" >RIV/68407700:21670/11:00185320 - isvavai.cz</a>
Result on the web
<a href="http://iopscience.iop.org/1748-0221/6/12/C12034/" target="_blank" >http://iopscience.iop.org/1748-0221/6/12/C12034/</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1748-0221/6/12/C12034" target="_blank" >10.1088/1748-0221/6/12/C12034</a>

Result language
angličtina
Original language name
Semiconductor pixel detector with absorption grid as a tool for charge sharing studies and energy resolution improvement
Original language description
A novel approach for characterization of semiconductor pixel detectors using X-rays is presented. A precise gold grid placed in front of the sensor chip segments the incoming X-ray beam into a matrix of precisely defined micro-beams irradiating all pixels in well-defined positions. Analysis of the resulting moiré pattern allows evaluation of the charge sharing effect and determination of its influence on the spectrometric properties of the detector. As opposed to currently used single micro-beam studiesrealized at synchrotron sources, the whole pixel matrix is investigated at once. This offers a great tool for the investigation of charge sharing phenomena and verification of theoretical models used to describe these detectors. Similarly, such an absorption grid can be used for masking the pixel borders thus suppressing the charge sharing effect. This approach significantly improves the spectrometric properties of the pixelated detector at the cost of lower detection efficiency.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BG - Nuclear, atomic and molecular physics, accelerators
OECD FORD branch
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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