Title :
Progress on diamond PIN diode emitters with negative electron affinity for high-voltage d.c. vacuum switches
Author :
D. Takeuchi;H. Kawashima;D. Kuwabara;T. Makino;H. Kato;M. Ogura;H. Ohashi;H. Okushi;S. Yamasaki;S. Koizumi
Author_Institution :
ETRI-AIST, AIST TC-2, 1-1-1 Umezono, Tsukuba, 305-8568 Japan
Abstract :
We have reported on ultra-high-voltage vacuum switches using diamond pin diode-type electron emitters with negative electron affinity. Based on the previous 10-kV demonstration, we present our recent progress on high-current operations at 4 A/cm2 in these vacuum switches. We confirmed a normally-off mode at a high voltage of 7 kV; in addition, we evaluated the capability of this device based on our model.
Keywords :
"Diamonds","PIN photodiodes","Anodes","Electron emission","Switches","Temperature dependence","Fabrication"
Conference_Titel :
Electric Power Equipment ? Switching Technology (ICEPE-ST), 2015 3rd International Conference on
DOI :
10.1109/ICEPE-ST.2015.7368370
