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Perspective scintillation electron detectors for S(T)EM
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SYSNO ASEP 0495554 Document Type A - Abstract R&D Document Type The record was not marked in the RIV R&D Document Type Není vybrán druh dokumentu Title Perspective scintillation electron detectors for S(T)EM Author(s) Schauer, Petr (UPT-D) RID, SAI, ORCID
Lalinský, Ondřej (UPT-D) RID, ORCID, SAI
Kučera, M. (CZ)Number of authors 4 Source Title 19th International Microscopy Congress (IMC19). Book of Abstracts.. - Sydney : LMA, 2018 Number of pages 1 s. Publication form Print - P Action International Microscopy Congress (IMC19) /19./ Event date 09.09.2018 - 14.09.2018 VEvent location Sydney Country AU - Australia Event type WRD Language eng - English Country AU - Australia Subject RIV JA - Electronics ; Optoelectronics, Electrical Engineering OECD category Electrical and electronic engineering R&D Projects GA16-05631S GA ČR - Czech Science Foundation (CSF) LO1212 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) ED0017/01/01 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UPT-D - RVO:68081731 Annotation Any detector is valuable if it doesn't waste the collected signal, doesn't introduce noise, and its response is sufficiently fast. The important indicator of an image quality is the modulation transfer function (MTF) which describes the ability to show fine image details. Using a scanning imaging system with a scintillation electron detector, the detector bandwidth, which is given especially by the scintillator time response, is the key to the good MTF. Not less important parameters are those affecting the detective quantum efficiency (DQE) which is primarily a measure of image noise. Efficient components with the high bandwidth and dynamic range are the key to the high DQE. To find the neck of a scintillation detection system, one must examine the whole detection path step by step. In fact, only three parameters of currently used standard scintillation electron detectors for S(T)EM can be referred as weaknesses of the system. These are scintillator conversion efficiency, scintillator time response and photon collection efficiency. Unfortunately, there is no great chance to improve the conversion efficiency, because the values for garnet scintillators are close to the theoretical limit. The other two parameters have prospects of improvement. Workplace Institute of Scientific Instruments Contact Martina Šillerová, sillerova@ISIBrno.Cz, Tel.: 541 514 178 Year of Publishing 2019
Number of the records: 1