New detectors for low-energy BSE

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F16%3A00460204" target="_blank" >RIV/68081731:_____/16:00460204 - isvavai.cz</a>
Result on the web
<a href="http://www.trends.isibrno.cz/" target="_blank" >http://www.trends.isibrno.cz/</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
New detectors for low-energy BSE
Original language description
Backscattered electrons (BSE) are mostly used to study the specimen’s topography. Nowadays, low energy (units of keV) electron beam imaging is often necessary for example for the research of nanomaterials, biomaterials or semiconductors. Because BSE detectors are mostly non-accelerating or low-accelerating, electrons with approximately the same energy as primary beam (PB) have to be detected. Therefore, BSE detectors need to become optimized for such low-energy electrons. For the scintillation detectors, the biggest problem probably lies in the scintillator. Semiconductor detectors aren’t studied in this work. Cerium activated bulk single crystals of yttrium aluminium garnet (YAG:Ce)Ce(X):Y(3-X)Al(5)O(12) are widely used as scintillators for the detection of high-energy backscattered electrons (BSE). However, commonly used YAG:Ce single crystal strongly loses its light yield (LY) with the decrease of the PB energy. As possible available alternatives for this application, bulk single crystals of yttrium aluminium perovskite (YAP:Ce) Ce(x)Y(1-X)AlO(3) and CRY018 can be predicted. However, similar LY drop can be expected also with these scintillators.
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of the 15th International Seminar on Recent Trends in Charged Particle Optics and Surface Physics Instrumentation
ISBN
978-80-87441-17-6
ISSN
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e-ISSN
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Number of pages
2
Pages from-to
34-35
Publisher name
Institute of Scientific Instruments CAS
Place of publication
Brno
Event location
Skalský dvůr
Event date
May 29, 2016
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000391254000015

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