Secondary electron yield suppression using millimeter-scale pillar array and explanation of the abnormal yield–energy curve
Ye Ming1, 2, †, Feng Peng1, Wang Dan1, Song Bai-Peng3, He Yong-Ning1, ‡, Cui Wan-Zhao4
       

The TSEY–energy curve showing an abnormal double-hump shape (reproduced from Refs. [19] and [22]). Wang et al. fabricated roughened surface with silver plated aluminum plates using laser etch technique, while Mata et al. reported secondary electron emission properties of polished and unpolished aluminum samples.