New broad-beam alkali ion source for use in ultra high vacuum

Ilija Terzic; Momcilo M. Tosic; Jovan Elazar

doi:10.1088/0957-0233/7/6/014

New broad-beam alkali ion source for use in ultra high vacuum

Ilija Terzic, Momcilo M. Tosic, Jovan Elazar

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

A new broad-beam ion source of alkali (K⁺) ions for use in ultra high vacuum was designed, built and tested. The basic principles used have advantages over gas-fed broad-beam ion sources, because there is no need for differential pumping, and because an intrinsically pure ion beam obviates the necessity for charge-to-mass analysis. The source is based on the effect of thermionic emission of K⁺ ions from solid potassium aluminosilicate (K₂O · Al₂O₃ · 2SiO₂) emitter. An ion beam current of 0.4 mA has been achieved at an extraction voltage of 3.5 kV with 1.5 cm beam diameter. The degassed broad-beam ion source in operation does not appreciably influence the background pressure in the ultra high vacuum system.

Original language	English
Pages (from-to)	944-948
Number of pages	5
Journal	Measurement Science and Technology
Volume	7
Issue number	6
DOIs	https://doi.org/10.1088/0957-0233/7/6/014
State	Published - 1 Jun 1996
Externally published	Yes

ASJC Scopus subject areas

Instrumentation
Engineering (miscellaneous)
Applied Mathematics

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title = "New broad-beam alkali ion source for use in ultra high vacuum",

abstract = "A new broad-beam ion source of alkali (K+) ions for use in ultra high vacuum was designed, built and tested. The basic principles used have advantages over gas-fed broad-beam ion sources, because there is no need for differential pumping, and because an intrinsically pure ion beam obviates the necessity for charge-to-mass analysis. The source is based on the effect of thermionic emission of K+ ions from solid potassium aluminosilicate (K2O · Al2O3 · 2SiO2) emitter. An ion beam current of 0.4 mA has been achieved at an extraction voltage of 3.5 kV with 1.5 cm beam diameter. The degassed broad-beam ion source in operation does not appreciably influence the background pressure in the ultra high vacuum system.",

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AU - Terzic, Ilija

AU - Tosic, Momcilo M.

AU - Elazar, Jovan

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Y1 - 1996/6/1

N2 - A new broad-beam ion source of alkali (K+) ions for use in ultra high vacuum was designed, built and tested. The basic principles used have advantages over gas-fed broad-beam ion sources, because there is no need for differential pumping, and because an intrinsically pure ion beam obviates the necessity for charge-to-mass analysis. The source is based on the effect of thermionic emission of K+ ions from solid potassium aluminosilicate (K2O · Al2O3 · 2SiO2) emitter. An ion beam current of 0.4 mA has been achieved at an extraction voltage of 3.5 kV with 1.5 cm beam diameter. The degassed broad-beam ion source in operation does not appreciably influence the background pressure in the ultra high vacuum system.

AB - A new broad-beam ion source of alkali (K+) ions for use in ultra high vacuum was designed, built and tested. The basic principles used have advantages over gas-fed broad-beam ion sources, because there is no need for differential pumping, and because an intrinsically pure ion beam obviates the necessity for charge-to-mass analysis. The source is based on the effect of thermionic emission of K+ ions from solid potassium aluminosilicate (K2O · Al2O3 · 2SiO2) emitter. An ion beam current of 0.4 mA has been achieved at an extraction voltage of 3.5 kV with 1.5 cm beam diameter. The degassed broad-beam ion source in operation does not appreciably influence the background pressure in the ultra high vacuum system.

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New broad-beam alkali ion source for use in ultra high vacuum

Abstract

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