A. Silva
7403221704
Publications - 2
Progress in diagnostics of the COMPASS tokamak
P. Bilkova
P. Bohm
O. Bogár
E. Gauthier
K. Kovarik
J. P. Gunn
D. I. Naydenkova
A. Podolnik
D. Réfy
N. Vianello
J. Adámek
J. Horacek
O. Grover
R. Dejarnac
J. Cavalier
O. Ficker
M. Hron
M. Komm
E. Matveeva
R. Pánek
M. Peterka
J. Seidl
M. Dimitrova
D. Fridrich
A. Devitre
T. Markovic
G. Anda
D. Dunai
M. Rabinski
J. Stockel
J. Mlynar
R. Paprok
K. Mitošinková
M. Sos
J. Varju
M. Tomes
M. Varavin
P. Hacek
J. Krbec
R. Gomes
M. Berta
J. Havlicek
A. Havranek
T. Krizsanóczi
V. Weinzettl
P. Vondráček
F. Zacek
M. Vlainic
M. Stano
T. Pereira
G. P. Ermak
J. Zebrowski
M. Jakubowski
K. Malinowski
M. Spolaore
J. Zajac
A. Silva
S. Zoletnik
Tsv Popov
D. Sarychev
M. Imrišek
S. Nanobashvili
Publication Name: Journal of Instrumentation
Publication Date: 2017-12-07
Volume: 12
Issue: 12
Page Range: Unknown
Description:
The COMPASS tokamak at IPP Prague is a small-size device with an ITER-relevant plasma geometry and operating in both the Ohmic as well as neutral beam assisted H-modes since 2012. A basic set of diagnostics installed at the beginning of the COMPASS operation has been gradually broadened in type of diagnostics, extended in number of detectors and collected channels and improved by an increased data acquisition speed. In recent years, a significant progress in diagnostic development has been motivated by the improved COMPASS plasma performance and broadening of its scientific programme (L-H transition and pedestal scaling studies, magnetic perturbations, runaway electron control and mitigation, plasma-surface interaction and corresponding heat fluxes, Alfvenic and edge localized mode observations, disruptions, etc.). In this contribution, we describe major upgrades of a broad spectrum of the COMPASS diagnostics and discuss their potential for physical studies. In particular, scrape-off layer plasma diagnostics will be represented by a new concept for microsecond electron temperature and heat flux measurements - we introduce a new set of divertor Langmuir and ball-pen probe arrays, newly constructed probe heads for reciprocating manipulators as well as several types of standalone probes. Among optical tools, an upgraded high-resolution edge Thomson scattering diagnostic for pedestal studies and a set of new visible light and infrared (plasma-surface interaction investigations) cameras will be described. Particle and beam diagnostics will be covered by a neutral particle analyzer, diagnostics on a lithium beam, Cherenkov detectors (for a direct detection of runaway electrons) and neutron detectors. We also present new modifications of the microwave reflectometer for fast edge density profile measurements.
Open Access: Yes
Overview of the COMPASS diagnostics
P. Bilkova
P. Bohm
D. I. Naydenkova
J. Adámek
J. Horacek
R. Dejarnac
M. Hron
R. Pánek
I. Ďuran
G. Anda
J. Stockel
J. Mlynar
D. Sestak
M. Aftanas
G. Veres
F. Janky
J. Brotankova
R. Melich
P. Hacek
R. Gomes
M. Berta
J. Havlicek
V. Weinzettl
F. Zacek
A. Szappanos
J. Zajac
D. Jares
J. Ghosh
V. F. Shevchenko
R. Scannell
M. Walsh
H. W. Müller
V. Igochine
A. Silva
M. Manso
S. Zoletnik
Tsv Popov
D. Sarychev
V. K. Kiselov
S. Nanobashvili
Publication Name: Fusion Engineering and Design
Publication Date: 2011-10-01
Volume: 86
Issue: 6-8
Page Range: 1227-1231
Description:
The COMPASS tokamak, a divertor device with clear H-mode and ITER-relevant geometry, has been re-installed in IPP Prague after its transport from CCFE in UK. The first plasma was achieved in December 2008. Many new diagnostic tools with both high temporal and spatial resolutions have been developed to address the scientific programme of COMPASS focused on H-mode physics and pedestal investigations. In the paper, an overview of existing and in near future planned diagnostics (magnetic, spectroscopy, microwave, probe and beam/particle) on COMPASS is given including their basic technical specifications and achievements. © 2011 EURATOM. Published by Elsevier B.V. All rights reserved.
Open Access: Yes
