Title :
X-Ray Flash Radiography System for High-Pressure Arc Diagnostic
Author :
Rutberg, Philip G. ; Budin, Alexander V. ; Pinchuk, Mikhail E. ; Bogomaz, Alexander A. ; Shirochin, Leonid A. ; Polyakov, Michael A. ; Leks, Anatoliy G. ; Losev, Sergey Yu
Author_Institution :
Inst. for Electrophys. & Electr. Power, Russian Acad. of Sci., St. Petersburg, Russia
Abstract :
The design of a new flash X-ray diagnostic system for the determination of metal vapor concentration in high-current discharges in high-pressure gas is presented. The system consists of a pulsed X-ray source with a hardness of 20-50 keV and an X-ray CCD camera. A high-voltage generator with a pulse duration of 50 ns was used. The new X-ray tube of through-target type was designed. Experimental research on the diagnostic of high-current discharges with a Z-pinch geometry was carried out. The parameters of the experiments are as follows: dJ/dt ~109 -1010 A/s, discharge current amplitudes up to 1 MA, and initial gas pressures of 2.5 kPa-35 MPa. Experimental data on the spatial metal vapor distribution in the discharge gap, provided by electrode erosion, were obtained.
Keywords :
Z pinch; arcs (electric); plasma X-ray sources; plasma diagnostics; plasma pressure; X-ray CCD camera; X-ray flash radiography system; X-ray tube; Z-pinch geometry; current 1 MA; discharge current amplitude; discharge gap; electrode erosion; electron volt energy 20 keV to 50 keV; high current discharges; high pressure gas; high-pressure arc diagnostic; high-voltage generator; metal vapor concentration; pressure 2.5 kPa to 35 MPa; pulsed X-ray source; spatial metal vapor distribution; time 50 ns; Discharges; Electrodes; Metals; Physics; Plasmas; Wire; X-ray imaging; Gas discharges; X-ray measurements; hydrogen; plasma diagnostics;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2010.2084109
