Title :
The First Observations of Cherenkov´s Radiation of Runaway Electrons Produced by Discharge in Dense Gas
Author :
Babich, Leonid P. ; Loiko, Tat´yana V. ; Rodigin, Anatolii V.
Author_Institution :
Russian Fed. Nucl. Center, All-Russian Res. Inst. of Exp. Phys., Nizhny Novgorod, Russia
Abstract :
For the first time, Cherenkov´s radiation (CR) was detected of runaway electron (RE) pulse generated by electric discharge in open atmosphere. The measured duration of the CR pulse is Δt0.5 ≈ 0.4 ns, the intrinsic duration does not exceed the measured duration of the pumping RE pulse At0.5 ≈ 0.15 ns. The observations of CR, executed with Plexiglas radiator, testify that the RE spectrum is stretched above the CR threshold in Plexiglas 176.4 keV.
Keywords :
Cherenkov radiation; discharges (electric); plasma density; plasma diagnostics; plasma transport processes; CR threshold; Cherenkov´s radiation; Plexiglas radiator; RE spectrum; dense gas; discharges; runaway electron pulse; Atmosphere; Atmospheric measurements; Discharges (electric); Luminescence; Oscilloscopes; Pulse measurements; Spectroscopy; Air; Cherenkov´s radiation (CR); atmospheric density; electric discharge; high voltage; runaway electrons (REs); subnanosecond; subnanosecond.;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2014.2308529
