Title :
An investigation of ionic sources in a gas discharge afterglow
Author :
Gutsev, Sergey A. ; Kosykh, Nikolay B.
Author_Institution :
Dept. of Gen. Phys.-1, St. Petersburg State Univ., St. Petersburg, Russia
fDate :
June 30 2014-July 4 2014
Abstract :
Negative ions are collected on the axis of a discharge tube in the active phase of the discharge. They drift to the tube peripheria after electron recombinations in the discharge afterglow. A period of time of electron outgoing is defined by a diffusion of positive ions. The period could be shorted by adding negative ions. The ionic concentration can be measured with probe methods. Such ionic sources have different applications.
Keywords :
afterglows; ion density; ion sources; negative ions; plasma density; plasma probes; plasma sources; plasma transport processes; positive ions; active phase; discharge tube axis; electron outgoing time; electron recombinations; gas discharge afterglow; ionic concentration; ionic sources; negative ions; positive ion diffusion; probe methods; Discharges (electric); Electron tubes; Fault location; Ions; Plasmas; Spontaneous emission;
Conference_Titel :
Vacuum Electron Sources Conference (IVESC), 2014 Tenth International
Conference_Location :
St. Petersburg
Print_ISBN :
978-1-4799-5770-5
DOI :
10.1109/IVESC.2014.6891995
