Title :
Work function measurements on 5-3-2 tungsten dispenser cathodes using the Miram curves
Author :
Motta, Claudio C. ; Erbert, Heidi
Author_Institution :
Univ. of Sao Paulo, Sao Paulo, Brazil
fDate :
June 30 2014-July 4 2014
Abstract :
The work functions of 5BaO.3CaO.Al2O3 porous tungsten dispenser cathodes were evaluated using practice work function technique of Miram to compare the coated and uncoated cathodes performance. Details of experimental apparatus used to measurement are presented and discussed.
Keywords :
aluminium compounds; barium compounds; calcium compounds; cathodes; porous materials; work function; 5-3-2 porous tungsten dispenser cathodes; BaO-CaO-Al2O3; Miram curves; coated cathode performance; work function measurements; work function technique; Atmospheric measurements; Cathodes; Furnaces; Raw materials; Surface treatment; Temperature measurement; Tungsten;
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.2014.6892041
