Počet záznamů: 1
Simulation of optimal measurement setting and calibration of a novel time-offlight spectrometer
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SYSNO ASEP 0510317 Druh ASEP A - Abstrakt Zařazení RIV Záznam nebyl označen do RIV Zařazení RIV Není vybrán druh dokumentu Název Simulation of optimal measurement setting and calibration of a novel time-offlight spectrometer Tvůrce(i) Zouhar, Martin (UPT-D) ORCID, RID, SAI
Daniel, Benjamin (UPT-D) RID
Radlička, Tomáš (UPT-D) RID, ORCID, SAI
Oral, Martin (UPT-D) RID, ORCID, SAI
Konvalina, Ivo (UPT-D) RID, ORCID, SAICelkový počet autorů 5 Zdroj.dok. Microscopy Conference: MC 2019. Abstracts. - Berlin : DSE, 2019
S. 603-604Poč.str. 2 s. Forma vydání Online - E Akce Microscopy Conference : MC 2019 Datum konání 01.09.2019 - 05.09.2019 Místo konání Berlin Země DE - Německo Typ akce WRD Jazyk dok. eng - angličtina Země vyd. DE - Německo Klíč. slova measurement setting and calibration ; novel time-offlight Vědní obor RIV JA - Elektronika a optoelektronika, elektrotechnika Obor OECD Electrical and electronic engineering CEP TN01000008 GA TA ČR - Technologická agentura ČR TE01020118 GA TA ČR - Technologická agentura ČR Institucionální podpora UPT-D - RVO:68081731 Anotace We present setting optimal measurement parameters of components of the time-of-flight (ToF) spectrometer via electron tracing in the regions below the sample. The results of the optimization are used to generate a time-to-energy (T2E) conversion table and to consequently convert spectra measured in the time-domain.
The goal is to find optimal potentials on the electrodes of the ToF spectrometer which shall be used during
measurement and in creation of the T2E conversion table.
A particle tracing library is used to generate data for a given set of values of voltages at the components of the ToF spectrometer for specified outgoing energies up to the landing energy (LE) and angles. The relevant part of the data consists of the triplet the ToF, the angle, and the energy. These values are used to construct a descriptor Q that is optimized to reach the best achievable properties of the spectrometer. Q consists of three interrelated contributions. The first is the signal S, ratio of the counts of the detected and emitted electrons. The second is the resolution R, constructed from a time-spread due to multiple electron trajectories with the same outgoing energy but different angles being detected. The third is the length of the spectrum in the time-domain T, the difference in the ToF corresponding to the LE and some (lower) reference energy. The quantity Q is optimized and the data set of the triplets (ToF, angle, energy) corresponding to the optimal point in the voltage space are used to generate the T2E conversion table.
Pracoviště Ústav přístrojové techniky Kontakt Martina Šillerová, sillerova@ISIBrno.Cz, Tel.: 541 514 178 Rok sběru 2020
Počet záznamů: 1