[9p-N403-1~16] 7.2 Applications and technologies of electron beams

5:00 PM - 5:15 PM JST(8:00 AM - 8:15 AM UTC)

[9p-N403-14] Electron beam operating time of NEA-InGaN Photocathodes

〇Atsushi Koizumi¹, Daiki Sato^1,2, Tomohiro Nishitani^1,2, Yoshio Honda², Hiroshi Amano² (1.Photo electron Soul, 2.IMaSS, Nagoya Univ.)

Keywords:

photocathode,electron gun,InGaN

We investigated the current durability of our newly developed NEA-InGaN photocathode. Its durability is reported here based on two key evaluations: the operational lifetime under a constant emission current maintained via feedback control, and the effects of accelerated aging tests where ion back bombardment was induced by introducing nitrogen gas during electron emission.