Infrared LED Enhanced Spectroscopic CdZnTe DetectorWorking under High Fluxes of X-rays

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F16%3A10328932" target="_blank" >RIV/00216208:11320/16:10328932 - isvavai.cz</a>

Alternative codes found

RIV/86652052:_____/16:N0000011

Result on the web

<a href="http://dx.doi.org/10.3390/s16101591" target="_blank" >http://dx.doi.org/10.3390/s16101591</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/s16101591" target="_blank" >10.3390/s16101591</a>

Result language

angličtina

Original language name

Infrared LED Enhanced Spectroscopic CdZnTe DetectorWorking under High Fluxes of X-rays

Original language description

This paper describes an application of infrared light-induced de-polarization applied on a polarized CdZnTe detector working under high radiation fluxes. We newly demonstrate the influence of a high flux of X-rays and simultaneous 1200-nm LED illumination on the spectroscopic properties of a CdZnTe detector. CdZnTe detectors operating under high radiation fluxes usually suffer from the polarization effect, which occurs due to a screening of the internal electric field by a positive space charge caused by photogenerated holes trapped at a deep level. Polarization results in the degradation of detector charge collection efficiency. We studied the spectroscopic behavior of CdZnTe under various X-ray fluxes ranging between 5 x 10(5) and 8 x 10(6) photons per mm(2) per second. It was observed that polarization occurs at an X-ray flux higher than 3 x 10(6) mm(-2) . s(-1). Using simultaneous illumination of the detector by a de-polarizing LED at 1200 nm, it was possible to recover X-ray spectra originally deformed by the polarization effect.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BM - Solid-state physics and magnetism

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

2016

Confidentiality

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

Name of the periodical

Sensors

ISSN

1424-8220

e-ISSN

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Volume of the periodical

16

Issue of the periodical within the volume

10

Country of publishing house

CH - SWITZERLAND

Number of pages

9

Pages from-to

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UT code for WoS article

000386131600044

EID of the result in the Scopus database

2-s2.0-84989338255