Laser Induced Breakdown Spectroscopy (LIBS) is a technique that involves focusing ultrashort-pulse laser beams onto a material surface to generate a plasma. The material emits characteristic spectral lines by which the elemental composition of the sample can be identified. This technique can be used for material identification, classification, and quantitative analysis.

Ion Doppler Spectroscopy (IDS) is system an ion temperature diagnostic for fusion plasma that does not rely on beam injection. The characteristic spectral lines generated by the electronic transitions of specific ions in the plasma are subject to thermal motion broadening (Doppler broadening). By measuring the Doppler broadening and frequency shift of these ion characteristic spectral lines, ion temperature and flow velocity can be analyzed. Our IDS diagnostic and automated data analysis system can measure the temperature and flow velocity distribution of background plasma without beam injection, providing cm level spatial resolution and ms level temporal resolution.

Vacuum spark spectroscopy system involves placing detection electrodes inside a vacuum chamber and applying high-voltage pulses to generate electric sparks that ablate solid surfaces. By collecting and analyzing the plasma spectra, information on the compositional changes of the solid surface can be obtained, enabling in-situ real-time diagnosis of the vacuum chamber surface. This technology complements Laser Induced Breakdown Spectroscopy (LIBS). Compared to LIBS, it offers advantages such as lightweight equipment, not limited by viewing angles, and not affected by window transmittance.

Our Electrostatic Probe Controller is for Langmuir probe diagnostics in fusion plasma. The Electrostatic Probe Controller can provide a bias excitation of up to ±200 V and 4 A. The Electrostatic Probe Controller is equipped with an Arbitrary Waveform Generator, which allows users to set the form, frequency, offset, and amplitude of the excitation signal as needed. The Electrostatic Probe Controller can complete isolated detection of probe voltage and current signals.