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Diagnostics for LHD
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DIAGNOSTICS
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PURPOSE
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BRIEF DESCRIPTION
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Magnetic Probes
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Ip, Ppl, Plasma Position, Shape of plasma
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Rogowski, Mirnov, Flux Loops
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mW Interferometer
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neL
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2mm/1mm wave, single channel
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FIR Laser Interferometer
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neL(r)
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119mm-CH3OH laser, 13 chords
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mW Reflectometer
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ne for NBI Interlock, ne Fluctuation
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Thomson Scattering
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Te(r), ne(r)
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130 spatial points, 20 ms interval
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ECE (Electron Cyclotron Emission)
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Te(r, z)
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2-D Imaging
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X-ray PHA (Pulse Height Analyzer)
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Te, Impurities
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20 ch Si(Li) , 4 ch Ge detector
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NPA (Neutral Particle Analyzer)
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Ti, Energy Spectra f(E)
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Time-of-flight method
radial scan, particle discrimination
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CXRS (Charge eXchange Recombination Spectroscopy)
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Ti(r), Plasma Rotation Vp(r)
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Radial profile
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X-ray Crystal Spectroscopy
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Ti(r)
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0.1-4nm, l /Dl: 104
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Neutron Diagnostics
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Neutron flux, Ti
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NE-213 detectors, 3He counters, activation of metal foils
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Bolometers
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Prad(r)
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metal film
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VUV Spectroscopy
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Impurities, Ti
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1- 200 nm, l /Dl: 104
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Visible Spectroscopy
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n0(H), Zeff
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200- 700 nm, l /Dl: 5 x 104
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Langmuir Probes
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Te, ne
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Fast scanning and fixed probes
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Visible/Infrared TV
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Plasma position, Plasma-Wall-Interaction, Wall/Limiter Temperature
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TV system
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Soft X-ray Diode Array
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MHD Oscillations
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silicon surface-barrier diodes
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mW/FIR Laser Scattering
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Micro-instabilities
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1mm/195mm multichannel
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Heavy Ion Beam Probe
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Fp, Fp Fluctuation
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Au- or Tl+, 6MeV, 100mA
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Diagnostic Pellet
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Particle Transport
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TECPEL/TESPEL, C, Li
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High-energy Particle Diagnostics
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High-energy Particles
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Li / He beam (2MeV, 10mA) probe, particle detector probes
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Divertor Spectroscopy
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Recycling, Particle Flux
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Li Beam Probe
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Density Fluctuation
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Li Beam
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Impurity Monitor
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Impurity Behavior
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IR Bolometer Camera
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Prad(r)
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IR 2-D Imaging
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Fast Ion Gauge
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Neutral Gas Pressure
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