Published November 2014 | Version v1
Journal article Metadata-only

Enhanced visible and near-infrared capabilities of the JET mirror-linked divertor spectroscopy system

Creators

  • 1. Centre for Advanced Instrumentation, Department of Physics, Durham University, Durham DH1 3LE (United Kingdom)
  • 2. EURATOM/CCFE Fusion Association, Culham Science Center, Abingdon OX14 3DB (United Kingdom)

Description

The mirror-linked divertor spectroscopy diagnostic on JET has been upgraded with a new visible and near-infrared grating and filtered spectroscopy system. New capabilities include extended near-infrared coverage up to 1875 nm, capturing the hydrogen Paschen series, as well as a 2 kHz frame rate filtered imaging camera system for fast measurements of impurity (Be II) and deuterium Dα, Dβ, Dγ line emission in the outer divertor. The expanded system provides unique capabilities for studying spatially resolved divertor plasma dynamics at near-ELM resolved timescales as well as a test bed for feasibility assessment of near-infrared spectroscopy

Additional details

Identifiers

DOI
10.1063/1.4893426;

Publishing Information

Journal Title
Review of Scientific Instruments
Journal Volume
85
Journal Issue
11
Journal Page Range
vp.
ISSN
0034-6748
CODEN
RSINAK

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
46009889
Subject category
S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
Descriptors DEI
ABSORPTION SPECTROSCOPY; CAMERAS; DEUTERIUM; DIVERTORS; EDGE LOCALIZED MODES; GRATINGS; HYDROGEN; INFRARED SPECTRA; JET TOKAMAK; KHZ RANGE 01-100; NEAR INFRARED RADIATION; PASCHEN LINES; PLASMA IMPURITIES
Descriptors DEC
CLOSED PLASMA DEVICES; ELECTROMAGNETIC RADIATION; ELEMENTS; FREQUENCY RANGE; HYDROGEN ISOTOPES; IMPURITIES; INFRARED RADIATION; INSTABILITY; ISOTOPES; KHZ RANGE; LIGHT NUCLEI; NONMETALS; NUCLEI; ODD-ODD NUCLEI; PLASMA INSTABILITY; PLASMA MACROINSTABILITIES; RADIATIONS; SPECTRA; SPECTROSCOPY; STABLE ISOTOPES; THERMONUCLEAR DEVICES; TOKAMAK DEVICES

Optional Information

Notes
(c) 2014 Euratom
Collaborations
JET-EFDA Team