Transportation properties of a high-current magnetically insulated transmission line and dynamics of the electrode plasma

Measurement of the target current by inductive probe during laser interaction on terawatt laser system PALS

“…Such groove has been used at large pulsed power generators for measurement of currents of several MA and rise time of hundreds of nanoseconds. [16][17][18][19][20] A high-bandwidth groove current probe was used for direct measurement of axial electronic mA-currents circulating in the wake of a short, intense infrared femtosecond laser pulse propagating in a gas in the form of a filament by Zhou et al 11 In the laser-produced plasma experiments, the voltage signal measured on a target is an oscillating relaxation, usually responding to a much faster pulse excitation, as it is shown in Fig. 5 presented in Ref.…”

“…[10][11][12][13][14][15][16][17][18][19][20] Numerous voltage and current sensors have been developed to be reliable and stable mainly in the pinch experiments. [14][15][16][17][18][19][20] The implemented single-turn-coil probe is based on the Rogowski principle and extends the number of groove probes developed by the pulsed power and accelerator community in the past decades. For example, a current probe based on small magnetic loops with nanosecond rise time was developed by Copeland et al 12 for detection of electron beam return currents of ∼65 kA.…”

The Increasing of the Efficiency of the Flyer Acceleration When Extending the Current Pulse on the Angara-5-1 Installation

“…Поскольку электроды концентратора находятся в условиях вакуумной изоляции, уменьшение зазоров между электродами, уменьшающее индуктивность, может приводить к повышению вакуумных утечек и уменьшению тока через нагрузку. Вопрос о поведении электродов при прохождении тока высокой погонной плотности (свыше 1 МА/см) по электродам в условиях его скинирования в вакууме исследовался в работах [8][9][10][11]. Для наших целей важно, что зазоры между электродами около 3 мм при длительности импульса около 100 нс позволяют проводить ток до 4 МА/см -1 по линиям с вакуумной изоляцией.…”

Leakage of current from MITL with ceramic coating cathode

“…A detailed study of the processes occurring when a current with a high linear density flows through stainless steel electrodes has been studied in various papers [2][3][4][5][6][7]. Of particular interest is the study of gap bridging by rare plasma [8][9][10]. In [11], the explosion of the surface of currentcarrying electrodes was investigated.…”

“…In [11], the explosion of the surface of currentcarrying electrodes was investigated. In [8][9][10][11], the behavior of electrodes made of heavy metals was studied. It was also noted in [4] that it is possible to work with a heterophase system by covering the electrode with a thin dielectric layer.…”