Published October 1977 | Version v1
Report Restricted

Development of a planar electron gun

Creators

  • 1. Frankfurt Univ. (Germany, F.R.). Inst. fuer Angewandte Physik

Description

For measuring the cross sections of higher ionization of ions by electron impact (HIDE project) a planar symetric electron gun was built. The gun was designed with aid of a computer program to yield a perveance of 10.3 μA/V3sup(/2) and a low variation of the potential in the interaction region with the ion beam. The measured maximum current density was 5.4 mA/cm2 at 100 V and 177 mA/cm2 at 1 kV. The variation of electron density within 2 mm was about 10% while nearly 50% of the whole current was in this region. (orig.)

Abstract (German)

Fuer die Messung der Wirkungsquerschnitte fuer hoehere Ionisation von Ionen durch Elektronenstoss (HIDE-Projekt) wurde eine planare symmetrische Elektronenkanone gebaut. Die Elektronenkanone wurde mit Hilfe eines Computerprogramms dafuer ausgelegt, eine Perveanz von 10,3 μA/V3sup(/2) und eine geringe Potentialschwankung in der Wechselwirkungszone mit dem Ionenstrahl zu gewaehrleisten. Die hoechste gemessene Stromdichte betrug 5,4 mA/cm2 bei 100 V und 177 mA/cm2 bei 1 kV. Die Schwankung der Elektronendichte innerhalb von 2 mm betrug um 10%, waehrend sich annaehernd 50% des gesamten Stromes in dieser Region befand. (orig.)

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Additional details

Publishing Information

Imprint Title
Workshop on EBIS and related topics
Journal Page Range
p. 75-76.
Report number
GSI-P--3-77

Conference

Title
Workshop on EBIS and related topics.
Dates
15 - 16 Jun 1977.
Place
Darmstadt, Germany, F.R.

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
9386437
Subject category
S43: PARTICLE ACCELERATORS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
BEAM PRODUCTION; ELECTRON BEAMS; ELECTRON GUNS; ION BEAMS; IONIZATION; TOTAL CROSS SECTIONS
Descriptors DEC
BEAMS; CROSS SECTIONS; LEPTON BEAMS; PARTICLE BEAMS

Optional Information

Notes
3 figs.; 4 refs.
Secondary number(s)
AED-Conf--77-427-017.