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Simulation of optimal measurement setting and calibration of a novel time-offlight spectrometer

SYSNO ASEP	0510317
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	Simulation of optimal measurement setting and calibration of a novel time-offlight spectrometer
Author(s)	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, SAI}
Number of authors	5
Source Title	Microscopy Conference: MC 2019. Abstracts. - Berlin : DSE, 2019 S. 603-604
Number of pages	2 s.
Publication form	Online - E
Action	Microscopy Conference : MC 2019
Event date	01.09.2019 - 05.09.2019
VEvent location	Berlin
Country	DE - Germany
Event type	WRD
Language	eng - English
Country	DE - Germany
Keywords	measurement setting and calibration ; novel time-offlight
Subject RIV	JA - Electronics ; Optoelectronics, Electrical Engineering
OECD category	Electrical and electronic engineering
R&D Projects	TN01000008 GA TA ČR - Technology Agency of the Czech Republic (TA ČR)
	TE01020118 GA TA ČR - Technology Agency of the Czech Republic (TA ČR)
Institutional support	UPT-D - RVO:68081731
Annotation	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.
Workplace	Institute of Scientific Instruments
Contact	Martina Šillerová, sillerova@ISIBrno.Cz, Tel.: 541 514 178
Year of Publishing	2020

Number of the records: 1