Title :
Pre-ionization of argon in the capillary at the SIGNAL accelerator
Author :
Gafarov, A.M. ; Ostashev, V.I. ; Safronov, A.A. ; Komissarov, A.V. ; Vagina, N.M. ; Panikovskaya, V.N.
Author_Institution :
Russian Fed. Nucl. Center, Zababakhin All-Russia Res. Inst. of Tech. Phys., Snezhinsk, Russia
Abstract :
The accelerator SIGNAL [1] is used to study electric discharges in an argon-filled capillary. The discharge current is 20...50 kA and the current rise time equals 30...50 ns. The pre-ionization system is used to create the pre-ionized gas. The pre-ionization current is 10...15 A. The paper describes the system design and experimental conditions. State of argon medium after the pre-ionization pulse studied with the help of streak-, digital photo- and pinhole cameras is characterized. Instability development was not observed.
Keywords :
argon; discharges (electric); ionisation; plasma diagnostics; plasma sources; Ar; SIGNAL accelerator; argon filled capillary; argon preionization; current 10 A to 15 A; current 20 kA to 50 kA; digital photo camera; discharge current; electric discharges; pinhole camera; preionization pulse; preionized gas; streak camera; time 30 ns to 50 ns; Physics;
Conference_Titel :
High-Power Particle Beams (BEAMS 2004), 2004 International Conference on
Conference_Location :
St. Petersburg
Print_ISBN :
978-5-87911-088-3
