Published October 1988 | Version v1
Report Metadata-only

Development of monitoring method for the work function on the converter surface in a negative ion source plasma

Creators

  • 1. Nagoya Univ. (Japan). Inst. of Plasma Physics

Description

A monitoring method of surface work function on a converter of a negative ion source is developed by measuring photoelectron emission induced by laser irradiation. Negative ions self-extracted are compared with the photoelectron current for hydrogen and helium discharges. The photoelectron current induced by the Ar+ laser gives overall behavior of the change in the cesium coverage, and the work function. The dye laser is used to confirm the region of the work function minimum. (author)

Additional details

Publishing Information

Imprint Title
Proceedings of the symposium on negative ion sources and their applications
Imprint Pagination
185 p.
Journal Page Range
p. 163-180.
Report number
KEK--88-7

Conference

Title
Symposium on negative ion sources and their applications.
Dates
5-6 Apr 1988.
Place
Tsukuba, Ibaraki (Japan).

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
20058363
Subject category
S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
CESIUM; ELECTRON EMISSION; ION SOURCES; LASER RADIATION; MOLYBDENUM; PHOTOELECTRIC EMISSION; QUANTUM EFFICIENCY; SURFACE POTENTIAL; WORK FUNCTIONS
Descriptors DEC
ALKALI METALS; EFFICIENCY; ELECTROMAGNETIC RADIATION; ELEMENTS; EMISSION; METALS; PHOTOELECTRIC EFFECT; POTENTIALS; RADIATIONS; TRANSITION ELEMENTS