Diagnostics for LHD
DIAGNOSTICS
PURPOSE
BRIEF DESCRIPTION
Magnetic Probes
Ip, Ppl, Plasma Position, Shape of plasma
Rogowski, Mirnov, Flux Loops
mW Interferometer
neL
2mm/1mm wave, single channel
FIR Laser Interferometer
neL(r)
119mm-CH3OH laser, 13 chords
mW Reflectometer
ne for NBI Interlock, ne Fluctuation
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Thomson Scattering
Te(r), ne(r)
130 spatial points, 20 ms interval
ECE (Electron Cyclotron Emission)
Te(r, z)
2-D Imaging
X-ray PHA (Pulse Height Analyzer)
Te, Impurities
20 ch Si(Li) , 4 ch Ge detector
NPA (Neutral Particle Analyzer)
Ti, Energy Spectra f(E)
Time-of-flight method

radial scan, particle discrimination

CXRS (Charge eXchange Recombination Spectroscopy)
Ti(r), Plasma Rotation Vp(r)
Radial profile
X-ray Crystal Spectroscopy
Ti(r)
0.1-4nm, l /Dl: 104
Neutron Diagnostics
Neutron flux, Ti
NE-213 detectors, 3He counters, activation of metal foils
Bolometers
Prad(r)
metal film
VUV Spectroscopy
Impurities, Ti
1- 200 nm, l /Dl: 104
Visible Spectroscopy
n0(H), Zeff
200- 700 nm, l /Dl: 5 x 104
Langmuir Probes
Te, ne
Fast scanning and fixed probes
Visible/Infrared TV
Plasma position, Plasma-Wall-Interaction, Wall/Limiter Temperature
TV system
Soft X-ray Diode Array
MHD Oscillations
silicon surface-barrier diodes
mW/FIR Laser Scattering
Micro-instabilities
1mm/195mm multichannel
Heavy Ion Beam Probe
Fp, Fp Fluctuation
Au- or Tl+, 6MeV, 100mA
Diagnostic Pellet
Particle Transport
TECPEL/TESPEL, C, Li
High-energy Particle Diagnostics
High-energy Particles
Li / He beam (2MeV, 10mA) probe, particle detector probes
Divertor Spectroscopy
Recycling, Particle Flux
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Li Beam Probe
Density Fluctuation
Li Beam
Impurity Monitor
Impurity Behavior
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IR Bolometer Camera
Prad(r)
IR 2-D Imaging
Fast Ion Gauge
Neutral Gas Pressure
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