A Simple Method for Experimental Determination of Electron Temperature and Electron Density in Nanosecond Pulsed Longitudinal Discharge Used for Excitation of High-Power Lasers

2014 ◽  
Vol 42 (12) ◽  
pp. 3938-3941 ◽  
Author(s):  
Krassimir A. Temelkov ◽  
Nikolay K. Vuchkov
Keyword(s):  
Electron Temperature ◽  
Experimental Determination ◽  
Electron Density ◽  
High Power ◽  
Simple Method ◽  
High Power Lasers ◽  
Longitudinal Discharge

scholarly journals Simple Method for Estimating the Contribution of Neighbouring n-beam Interactions to Two-beam Structure Factors

1988 ◽  
Vol 41 (3) ◽  
pp. 469
Author(s):  
HJ Juretschke ◽  
HK Wagenfeld
Keyword(s):  
Experimental Determination ◽  
Structure Factor ◽  
Beam Structure ◽  
Simple Method ◽  
Experimental Configuration ◽  
Structure Factors ◽  
Special Cases ◽  
Better Than

Unless special precautions are taken, the experimental determination of two-beam structure factors to better than 1 % may include contributions from neighbouring n-beam interactions. In any particular experimental configuration, corrections for such contributions are easily carried out using the modified two-beam structure factor formalism developed recently (Juretschke 1984), once the full indexing of the pertinent n-beam interactions is known. The method is illustrated for both weak and strong primary reflections and its applicability in special cases, as well as for less than perfect crystals, is discussed.

Temporal and Spatial Behavior of Electron Density and Temperature in a Laser-Produced Plasma from YBa2Cu3O7

1998 ◽  
Vol 52 (3) ◽  
pp. 449-455 ◽  
Author(s):  
S. S. Harilal ◽  
C. V. Bindhu ◽  
V. P. N. Nampoori ◽  
C. P. G. Vallabhan
Keyword(s):  
Electron Temperature ◽  
Electron Density ◽  
Spectroscopic Studies ◽  
Spatial Behavior ◽  
Laser Irradiance ◽  
Stark Broadening ◽  
Line Intensities ◽  
Experimental Parameters ◽  
Temporal And Spatial

Spectroscopic studies of laser-induced plasma from a high-temperature superconducting material, viz., YBa2Cu3O7 (YBCO), have been carried out. Electron temperature and electron density measurements were made from spectral data. The Stark broadening of emission lines was used to determine the electron density, and the ratio of line intensities was exploited for the determination of electron temperature. An initial electron temperature of 2.35 eV and electron density of 2.5 × 1017 cm−3 were observed. The dependence on electron temperature and density on different experimental parameters such as distance from the target, delay time after the initiation of the plasma, and laser irradiance is also discussed in detail.

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