@article{oai:nagoya.repo.nii.ac.jp:00010172,
 author = {Okumi, Shoji and Yamamoto, Naoto and Tamagaki, Kuniaki and Mano, Atsushi and Sakai, Ryosuke and Yamamoto, Masahiro and Kuwahara, Makoto and Morino, Takanori and Utsu, Akira and Nakanishi, Tsutomu and Kim, Shukwang and Ujihara, Toru and Takeda, Yoshikazu and Ohshima, Takashi and Yasue, Tsuneo and Koshikawa, Takanori},
 issue = {1},
 journal = {AIP Conference Proceedings},
 month = {},
 note = {A new transmission type photocathode and gun for polarized electron source (PES) has been  developed to enable the real-time observation of magnetism images during thin film growth by  SPLEEM. This photocathode requires for laser lights to be injected from its backside and an electron beam is extracted from its surface side. By this scheme, it is possible to make a small laser spot (<= 10μmφ) on the photocathode. A quantum efficiency for a strained GaAs-GaAsP superlattice photocathode was larger than 0.1% and a brightness higher 10^5A·cm^{-2}·sr^{-1} for an extracted current of 5μA was achieved by our PES system.},
 pages = {1085--1090},
 title = {Development of the New Type Polarized Electron Source for SPLEEM},
 volume = {915},
 year = {2007}
}