Simulation of Charge Diffusion and Fluorescent Photons in Pixelated CdTe Sensor

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F21%3A00350745" target="_blank" >RIV/68407700:21230/21:00350745 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21340/21:00350745

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Simulation of Charge Diffusion and Fluorescent Photons in Pixelated CdTe Sensor

Popis výsledku v původním jazyce

Hybrid pixel detectors are becoming an integral part of medical imaging, material testing, space science, and many more. Hybrid pixel detectors consist of two parts: a chip with readout electronics and a bump bonded sensor with a top plated cathode and pixelated anode. Sensors are made from various materials such as Si, GeAs, and CdTe/CdZnTe. One of the commonly used materials for X-ray imaging is CdTe due to its high absorption efficiency in the X-ray spectrum. To increase the spatial resolution of the detectors, it is necessary to reduce the size of pixels. However, the decreasing size of pixel pitch leads to raising the impact of charge sharing and fluorescent photons. These effects cause that charge generated upon the absorption of gamma photon is registered by multiple pixels, leading to spectrum distortion. This study simulated the effect of charge sharing and fluorescent photons in 70 μm pixelated CdTe.

Název v anglickém jazyce

Simulation of Charge Diffusion and Fluorescent Photons in Pixelated CdTe Sensor

Popis výsledku anglicky

Hybrid pixel detectors are becoming an integral part of medical imaging, material testing, space science, and many more. Hybrid pixel detectors consist of two parts: a chip with readout electronics and a bump bonded sensor with a top plated cathode and pixelated anode. Sensors are made from various materials such as Si, GeAs, and CdTe/CdZnTe. One of the commonly used materials for X-ray imaging is CdTe due to its high absorption efficiency in the X-ray spectrum. To increase the spatial resolution of the detectors, it is necessary to reduce the size of pixels. However, the decreasing size of pixel pitch leads to raising the impact of charge sharing and fluorescent photons. These effects cause that charge generated upon the absorption of gamma photon is registered by multiple pixels, leading to spectrum distortion. This study simulated the effect of charge sharing and fluorescent photons in 70 μm pixelated CdTe.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

Projekt

<a href="/cs/project/EF16_019%2F0000778" target="_blank" >EF16_019/0000778: Centrum pokročilých aplikovaných přírodních věd</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of Student Conference on Sensors, Systems and Measurement 2021

ISBN

978-80-01-06822-9

ISSN

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e-ISSN

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Počet stran výsledku

2

Strana od-do

7-8

Název nakladatele

CESKE VYSOKE UCENI TECHNICKE V PRAZE

Místo vydání

Praha

Místo konání akce

Prague

Datum konání akce

14. 6. 2021

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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