Related Experiment Video
Updated: Jan 6, 2026

Investigation of Early Plasma Evolution Induced by Ultrashort Laser Pulses
Published on: July 2, 2012
Extreme ultraviolet radiation of transient plasma in fast conical discharge
P S Antsiferov1,2, L A Dorokhin1, K N Koshelev1
1Institute of Spectroscopy of Russian Academy of Sciences, Fizicheskaya strasse 5, 108840 Troitsk, Moscow, Russia.
Abstract:
The article presents the results of the detailed experimental study of fast conical discharge with Ar as a working gas. The discharge produces a compact transient plasma which emits extreme ultraviolet (EUV) radiation with wavelength 10.8 nm. The intensity of this spectral line is an order of magnitude larger than the rest of the radiation in EUV band. Space resolved EUV spectra allowed us to get the estimation of the effective size of the radiation source (less than 0.5 mm). Time resolved spectra (frame time 20 ns) show that a 10.8-nm spectral line is emitted during 50-60 ns. Charge exchange of Ar IX ions with excited atoms of Ar I in the result of interaction of hot compact plasma in the cumulation point of conical shockwave and cold working gas is considered as the main phenomenon, responsible for the emission of the detected radiation.
Related Concept Videos
Inductively Coupled Plasma Atomic Emission Spectroscopy: Principle
The ions and electrons produced interact with the fluctuating magnetic field created by a water-cooled...
Atomic Emission Spectroscopy: Overview
Van de Graaff Generator
Van de Graaff uses both smooth and pointed surfaces, conductors, and insulators to generate large static charges and, hence, large voltages. A substantial excess charge can be deposited on the sphere because it moves...
Inductively Coupled Plasma–Mass Spectrometry (ICP–MS): Overview
Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation
There are three main types of inductively coupled plasma atomic emission spectroscopy (ICP-AES) instruments: sequential, simultaneous multichannel, and Fourier transform instruments, with the latter being less commonly used....
Nuclear Transmutation

