Conversion Method of Thermionic Emission Current to Voltage for High-Voltage Sources of Electrons

The stability of the electron thermionic emission current is one of the most important requirements for electron sources used, inter alia, in evaporators, production of rare gas excimers, and electron beam objects for high energy physics. In emission current control systems, a negative feedback sign...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Dariusz Kuś, Adam Kurnicki, Jarosław Sikora, Janusz Mroczka
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	thermionic electron source cathode current intensity distribution signal processing cathode converter electron work function emission current controller Electronics TK7800-8360
Acceso en línea:	https://doaj.org/article/c56d6310ba7a47a1abe685323c13004b
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:c56d6310ba7a47a1abe685323c13004b
record_format	dspace
spelling	oai:doaj.org-article:c56d6310ba7a47a1abe685323c13004b2021-11-25T17:25:16ZConversion Method of Thermionic Emission Current to Voltage for High-Voltage Sources of Electrons10.3390/electronics102228442079-9292https://doaj.org/article/c56d6310ba7a47a1abe685323c13004b2021-11-01T00:00:00Zhttps://www.mdpi.com/2079-9292/10/22/2844https://doaj.org/toc/2079-9292The stability of the electron thermionic emission current is one of the most important requirements for electron sources used, inter alia, in evaporators, production of rare gas excimers, and electron beam objects for high energy physics. In emission current control systems, a negative feedback signal, directly proportional to the emission current is transferred from the high-voltage anode circuit to the low-voltage cathode circuit. This technique, especially for high-voltage sources of electrons, requires the use of galvanic isolation. Alternatively, a method of converting the emission current to voltage in the cathode power supply circuit was proposed. It uses a linear cathode current intensity distribution and multiplicative-additive processing of two voltage signals, directly proportional to the values of cathode current intensity. The simulation results show that a relatively high conversion accuracy can be obtained for low values of the electron work function of the cathode material. The results of experimental tests of the dynamic parameters of the electron source and the steady-state <i>I<sub>e</sub></i>-<i>V</i> characteristic of the converter are presented. The implementation of the proposed <i>I<sub>e</sub></i>-<i>V</i> conversion method facilitates the design of the emission current controller, especially for high-voltage sources of electrons, because a negative feedback loop between the anode and cathode circuits is not required, all controller sub-components are at a common electrostatic potential.Dariusz KuśAdam KurnickiJarosław SikoraJanusz MroczkaMDPI AGarticlethermionic electron sourcecathode current intensity distributionsignal processingcathode converterelectron work functionemission current controllerElectronicsTK7800-8360ENElectronics, Vol 10, Iss 2844, p 2844 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	thermionic electron source cathode current intensity distribution signal processing cathode converter electron work function emission current controller Electronics TK7800-8360
spellingShingle	thermionic electron source cathode current intensity distribution signal processing cathode converter electron work function emission current controller Electronics TK7800-8360 Dariusz Kuś Adam Kurnicki Jarosław Sikora Janusz Mroczka Conversion Method of Thermionic Emission Current to Voltage for High-Voltage Sources of Electrons
description	The stability of the electron thermionic emission current is one of the most important requirements for electron sources used, inter alia, in evaporators, production of rare gas excimers, and electron beam objects for high energy physics. In emission current control systems, a negative feedback signal, directly proportional to the emission current is transferred from the high-voltage anode circuit to the low-voltage cathode circuit. This technique, especially for high-voltage sources of electrons, requires the use of galvanic isolation. Alternatively, a method of converting the emission current to voltage in the cathode power supply circuit was proposed. It uses a linear cathode current intensity distribution and multiplicative-additive processing of two voltage signals, directly proportional to the values of cathode current intensity. The simulation results show that a relatively high conversion accuracy can be obtained for low values of the electron work function of the cathode material. The results of experimental tests of the dynamic parameters of the electron source and the steady-state <i>I<sub>e</sub></i>-<i>V</i> characteristic of the converter are presented. The implementation of the proposed <i>I<sub>e</sub></i>-<i>V</i> conversion method facilitates the design of the emission current controller, especially for high-voltage sources of electrons, because a negative feedback loop between the anode and cathode circuits is not required, all controller sub-components are at a common electrostatic potential.
format	article
author	Dariusz Kuś Adam Kurnicki Jarosław Sikora Janusz Mroczka
author_facet	Dariusz Kuś Adam Kurnicki Jarosław Sikora Janusz Mroczka
author_sort	Dariusz Kuś
title	Conversion Method of Thermionic Emission Current to Voltage for High-Voltage Sources of Electrons
title_short	Conversion Method of Thermionic Emission Current to Voltage for High-Voltage Sources of Electrons
title_full	Conversion Method of Thermionic Emission Current to Voltage for High-Voltage Sources of Electrons
title_fullStr	Conversion Method of Thermionic Emission Current to Voltage for High-Voltage Sources of Electrons
title_full_unstemmed	Conversion Method of Thermionic Emission Current to Voltage for High-Voltage Sources of Electrons
title_sort	conversion method of thermionic emission current to voltage for high-voltage sources of electrons
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/c56d6310ba7a47a1abe685323c13004b
work_keys_str_mv	AT dariuszkus conversionmethodofthermionicemissioncurrenttovoltageforhighvoltagesourcesofelectrons AT adamkurnicki conversionmethodofthermionicemissioncurrenttovoltageforhighvoltagesourcesofelectrons AT jarosławsikora conversionmethodofthermionicemissioncurrenttovoltageforhighvoltagesourcesofelectrons AT januszmroczka conversionmethodofthermionicemissioncurrenttovoltageforhighvoltagesourcesofelectrons
_version_	1718412373256044544

Conversion Method of Thermionic Emission Current to Voltage for High-Voltage Sources of Electrons

Ejemplares similares