Published October 2010 | Version v1
Journal article Metadata-only

Development of two-channel prototype ITER vacuum ultraviolet spectrometer with back-illuminated charge-coupled device and microchannel plate detectors

Creators

  • 1. National Fusion Research Institute, Gwahangno 113, Yuseong-gu, Daejeon 305-333 (Korea, Republic of)
  • 2. Institut fuer Plasmaphysik, Forschungszentrum Juelich Gmbh, D-52425 Juelich (Germany)
  • 3. ITER Organization, CS 90 046, 13067 St. Paul Lez Durance Cedex (France)

Description

A vacuum ultraviolet (VUV) spectrometer of a five-channel spectral system is designed for ITER main plasma impurity measurement. To develop and verify the system design, a two-channel prototype system is fabricated with No. 3 (14.4-31.8 nm) and No. 4 (29.0-60.0 nm) among the five channels. The optical system consists of a collimating mirror to collect the light from source to slit, two holographic diffraction gratings with toroidal geometry, and two different electronic detectors. For the test of the prototype system, a hollow cathode lamp is used as a light source. To find the appropriate detector for ITER VUV system, two kinds of detectors of the back-illuminated charge-coupled device and the microchannel plate electron multiplier are tested, and their performance has been investigated.

Additional details

Identifiers

DOI
10.1063/1.3478550;

Publishing Information

Journal Title
Review of Scientific Instruments
Journal Volume
81
Journal Issue
10
Journal Page Range
p. 10E508-10E508.3
ISSN
0034-6748
CODEN
RSINAK

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
44016268
Subject category
S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
Descriptors DEI
CHARGE-COUPLED DEVICES; COLLIMATORS; DIFFRACTION GRATINGS; FAR ULTRAVIOLET RADIATION; FLUORESCENT LAMPS; HOLLOW CATHODES; HOLOGRAPHY; ITER TOKAMAK; LIGHT SOURCES; MICROCHANNEL ELECTRON MULTIPLIERS; OPTICAL SYSTEMS; PLASMA IMPURITIES; ULTRAVIOLET SPECTROMETERS; VISIBLE RADIATION
Descriptors DEC
CATHODES; CLOSED PLASMA DEVICES; ELECTRODES; ELECTROMAGNETIC RADIATION; ELECTRON MULTIPLIERS; ELECTRON TUBES; IMPURITIES; LIGHT BULBS; MEASURING INSTRUMENTS; RADIATION SOURCES; RADIATIONS; SEMICONDUCTOR DEVICES; SPECTROMETERS; THERMONUCLEAR DEVICES; THERMONUCLEAR REACTORS; TOKAMAK DEVICES; TOKAMAK TYPE REACTORS; ULTRAVIOLET RADIATION

Optional Information

Notes
(c) 2010 American Institute of Physics