関連論文バックナンバー

Recovery of quantum efficiency on Cs/O-activated GaN and GaAs photocathodes by thermal annealing in vacuumDaiki Sato, Tomohiro Nishitani, Yoshio Honda, and Hiroshi AmanoJournal of Vacuum Science & Technology B 38, 012603 (2020); doi: 10.1116/1.5120417
Optimization of InGaN thickness for high-quantum-efficiency Cs/O activated InGaN photocathodeDaiki Sato, Anna Honda, Atsushi Koizumi, Tomohiro Nishitani, Yoshio Honda, Hiroshi AmanoMicroelectronic Engineering 223 (2020) 111229; doi: 10.1016/j.mee.2020.111229
“Analysis of negative electron affinity InGaN photocathode by temperature-programed desorption method”Masahiro Kashima, Daiki Sato, Atsushi Koizumi, Tomohiro Nishitani, Yoshio Honda, Hiroshi Amano, Hokuto Iijima, and Takashi MeguroJournal of Vacuum Science & Technology B 36, 06JK02 (2018); doi: 10.1116/1.5048061
半導体フォトカソードの産業技術への展開を目指した研究開発と事業化, Development of semiconductor photocathode for industrial electron beam technology and its technology commercialization西谷智博会誌「放射線化学」第103号, pp.21-27 (2017)(ISSN 2188-0115), Journal of Japanese Society of Radiation Chemistry
Observation of relaxation time of surface charge limit for InGaN NEA photocathodesDaiki Sato, Tomohiro Nishitani, Yoshio Honda and Hiroshi AmanoJapanese Journal of Applied Physics, Volume 55, 05FH05 (2016)
Photoemission lifetime of a negative electron affinity gallium nitride photocathodeTomohiro Nishitani, Masao Tabuchi, Hiroshi Amano, Takuya Maekawa, Makoto Kuwahara, and Takashi MeguroJournal of Vacuum Science & Technology B 32, 06F901 (5 pages) (2014); doi: 10.1116/1.4901566
In situ Observation of Formation Process of Negative Electron Affinity Surface of GaAs by Surface Photo-AbsorptionKazuya Hayase, Tomohiro Nishitani, Katsunari Suzuki, Hironobu Imai, Jun-ichi Hasegawa, Daiki Namba, and Takashi MeguroJpn. J. Appl. Phys. 52 (2013) 06GG05 (3 pages), DOI: 10.7567/JJAP.52.06GG05
GaN半導体型フォトカソードの量子効率の劣化現象と波長依存性早瀬 和哉、西谷 智博、目黒 多加志、電気学会論文誌Quantum yield degradation from extraction of photocurrent and residual gas in a p-GaN photocathode with an NEA surface
Kazuya Hayase, Tomohiro Nishitani, Takashi Meguro
The Electronic Journal Edition of IEEJ Transactions, Vol. 132 (2012) No. 8 P 1261-1264,doi:10.1541/ieejeiss.132.1261
Superlattice Photocathode for High Brightness and Long NEA-surface lifetimeT. Nishitani, M. Tabuchi, K. Motoki, T. Takashima, A. Era, Y. TakedaJournal of Physics: Conference Series, 298, 012010, pp.1-5, (2011), doi:10.1088/1742-6596/298/1/012010
A study on XAFS analysis of Cs/GaAs NEA surfaceAtsushi Era, Masao Tabuchi, Tomohiro Nishitani, and Yoshikazu Takeda Journal of Physics: Conference Series, 298, 012012, pp.1-5, (2011), doi:10.1088/1742-6596/298/1/012012
A study of an electron affinity of cesium telluride thin filmH Sugiyama, K Ogawa, J Azuma, K Takahashi, M Kamada, T Nishitani, M Tabuchi, T Motoki, K Takashima, A Era and Y TakedaJournal of Physics: Conference Series, 298, 012014, pp.1-6, (2011), doi:10.1088/1742-6596/298/1/012014
High Brightness Spin-Polarized Electron Source using Semiconductor PhotocathodesTomohiro Nishitani, Masao Tabuchi, Yoshikazu Takeda, Yuji Suzuki, Kazuya Motoki, Takashi MeguroJapanese Journal of Applied Physics 48 (2009) 06FF02, DOI: 10.1143/JJAP.48.06FF02
Superlattice Photocathode With High Brightness And Long NEA-surface LifetimeTomohiro Nishitani, Masao Tabuchi, Yoshikazu Takeda, Yuji Suzuki, Kazuya Motoki, Takashi MeguroThe American Institute of Physics: Conference Proceedings, Volume 1149, pp. 1047-1051, (2009), DOI: 10.1063/1.3215590
Photocathodes for the energy recovery linacs T. Rao, A. Burrill, X.Y. Chang, J. Smedley, T. Nishitani, C. Hernandez Garcia, M. Poelker, E. Seddon, F.E. Hannon, C.K. Sinclair, J. Lewellen, D. FeldmanNuclear Instruments and Methods in Physics Research A 557, pp.124–130, (2006)
Highly polarized electrons from GaAs-GaAsP and InGaAs-AlGaAs strained-layer superlattice photocathodesT. Nishitani, T. Nakanishi, M. Yamamoto, S. Okumi, F. Furuta, M. Miyamoto, M. Kuwahara, N. Yamamoto, K. Naniwa, O. Watanabe, Y. Takeda, H. Kobayakawa, Y. Takashima, H. Horinaka, T. Matsuyama, K. Togawa, T. Saka, M. Tawada, T. Omori, Y. Kurihara, M.Yoshioka, K. Kato, T. BabaJournal of Applied Physics, 97, pp. 094907 1-6, (2005)
Surface photovoltage effect and its time dependence in GaAs-GaAsP superlattice studied with combination of synchrotron and laser radiation S. Tanaka, T. Nishitani, T. Nakanishi, S. D. Moré, J. Azuma, K. Takahashi, O. Watanabe, and M. KamadaJournal of Applied Physics, 95, 551 (2004)
High Spin Polarization of Conduction Band Electrons in GaAs-GaAsP Strained Layer Superlattice Fabricated as a Spin-Polarized Electron Source Tetsuya Matsuyama, Hisaya Takikita, Hiromichi Horinaka, Kenji Wada, Tsutomu Nakanishi, Shoji Okumi, Tomohiro Nishitani, Takashi Saka, and Toshihiro Kato Japanese Journal of Applied Physics, Part 1 43, 3371-3375 (2004)
200 keV Polarized Electron Source at Nagoya UniversityK. Wada, M. Yamamoto, T. Nakanishi, S. Okumi, T. Gotoh, C. Suzuki, F. Furuta, T. Nishitani, M. Miyamoto, M. Kuwahara, T. Hirose, R. Mizuno, N. Yamamoto, H. Matsumoto, M. YoshiokaAIP Conference Proceedings, Volume 675, Issue 1, pp. 1063-1067 (2003)
Basic R&D Studies for Lower Emittance Polarized Electron GunsC. Suzuki, T. Nakanishi, S. Okumi, F. Furuta, K. Wada, T. Nishitani, M. Yamamoto, T. Hirose, M. Kuwahara, R. Mizuno, N. Yamamoto, H. Matsumotoa), M. Yoshiokaa), H. Horinaka, K. Wada,T. Matsuyama, H. KobayakawaAIP Conference Proceedings, Volume 675, Issue 1, pp. 1068-1072 (2003)
SURFACE-PHOTOVOLTAGE EFFECT IN A GaAs-GaAsP SUPERLATTICE STUDIED WITH COMBINATION OF SYNCHROTRON RADIATION AND THE LASERSenku.Tanaka, Sam D. More, Kazutoshi Takahashi, Masao Kamada, Tomohiro Nishitani and Tsutomu NakanishiSurface Review and Letters, Vol. 9, No. 21297-1301 (2002)
High Luminescence Polarization of InGaAs–AlGaAs Strained Layer Superlattice Fabricated as a Photocathode of Spin-Polarized Electron SourceTetsuya Matsuyama, Masayasu Mukai, Hiromichi Horinaka, Kenji Wada, Tsutomu Nakanishi, Shoji Okumi, Kazuaki Togawa, Tomohiro Nishitani and Toshio BabaJapanese Journal of Applied Physics, 40 (2001) pp. 6468-6472, Pt. 1, No. 11
Fabrication of Ultra-clean Copper Surface to Minimize Field Emission Dark CurrentsC. Suzuki, T. Nakanishi, S. Okumi, T. Gotou, K. Togawa, F. Furuta, K. Wada, T. Nishitani, M. Yamamoto, J. Watanabe, S. Kurahashi, K. Asano, H. Matsumoto, M. Yoshioka and H. KobayakawaNuclear Instruments and Methods in Physics Research A 462 p337-348 (2001)
Surface Photovoltage Effect on Clean and Negative Electron-affinity Surfaces of GaAs and its SuperlatticeS. Tanaka, S.D. More, T. Nishitani, K. Takahashi, T. Nakanishi and M. KamadaAIP Conference Proceedings, Volume 570, Issue 1, pp. 1000-1002 (2001)
Cesiumoxide-GaAs Interface and Layer Thickness in NEA Surface FormationS.D. More, Senku Tanaka, Shin-ichiro Tanaka, T. Nishitani, T. Nakanishi and M. KamadaAIP Conference Proceedings, Volume 570, Issue 1, pp. 916-919 (2001)
Fabrication of GaAs/GaAsP Superlattice PhotocathodeO. Watanabe, T. Nishitani, K. Togawa, Y. Takashima, T. Nakanishi, Y. Takeda and H. KobayakawaAIP Conference Proceedings, Volume 570, Issue 1, pp. 1024-1026 (2001)
Development of Spin Polarized Electron Photocathodes: GaAs-GaAsP Superlattice and GaAs- AlGaAs Superlattice with DBRT. Nishitani, O. Watanabe, T. Nakanishi, S. Okumi, K. Togawa, C. Suzuki, F. Furuta, K. Wada, M. Yamamoto, J. Watanabe, S. Kurahashi, M. Miyamoto, H. Kobayakawa, Y. Takeda, T. Saka, K. Kato, A. K. Bakarov, A. S. Jaroshevich, H. E. Scheibler, A. I. Toropov and A. S. TerekhovAIP Conference Proceedings, Volume 570, Issue 1, pp. 1021-1023 (2001)
Atomic Hydrogen Cleaning of GaAs Photocathode with a Load-Lock SystemM.Yamamoto, K.Wada, T.Nakanishi, S.Okumi, K.Togawa, C.Suzuki, F.Furuta, T. Nishitani, J.Watanabe, S.Kurahashi and M.MiyamotoInternational Workshop on Polarized Electron Sources and Polarimeters (PES2000), AIP Conference Proceedings, Volume 570, Issue 1, pp. 1018-1020 (2001)
Test of Cesium Telluride Photocathode as a Feasibility Study on Polarized RF-gunF.Furuta, H.Sugiyama ,T.Nakanishi, S.Okumi, K. Togowa, C. Suzuki, K. Wada, M.Yamamoto, T. Nishitani, J.Watanabe, S.Kurahashi, M.Miyamoto, M. Kuwahara, R.Mizuno, T.Hirose, K.Kimura, H.Kobayakawa, Y.Takashima, M.Yoshioka and H.MatsumtoInternational Workshop on Polarized Electron Sources and Polarimeters (PES2000), AIP Conference Proceedings, Volume 570, Issue 1, pp. 1015-1017 (2001)
Development of 200 keV Polarized Electron GunK. Wada, M. Yamamoto, T. Nakanishi, S. Okumi, T. Gotoh, K. Togawa, C. Suzuki, F. Furuta, T. Nishitani, J. Watanabe, S. Kurahashi, M. Miyamoto, H. Matsumoto, Y. Takeuchi and M. YoshiokaInternational Workshop on Polarized Electron Sources and Polarimeters (PES2000), AIP Conference Proceedings, Volume 570, Issue 1, pp. 1012-1014 (2001)
Reduction of Field Emission Current from Stainless Steel and Copper SurfaceC. Suzuki, T. Nakanishi, S. Okumi, , T. Gotoh, K. Togawa, F. Furuta, K. Wada, T. Nishitani, M. Yamamoto, J. Watanabe, S. Kurahashi, H. Matsumoto, M. Yoshioka, K. Asano and H. Kobayakawa.International Workshop on Polarized Electron Sources and Polarimeters (PES2000), AIP Conference Proceedings, Volume 570, Issue 1, pp. 1009-1011 (2001)
Polarized Electron Source for Japan Linear ColliderK. Togawa, T. Nakanishi, S. Okumi, C. Suzuki, F. Furuta, K. Wada, T. Nishitani, M. Yamamoto, H. Kobayakawa, Y. Takeda, Y. Takashima, H. Sugiyama, O. Watanabe, Y. Kurihara, H. Matsumoto, T. Omori, Y. Takeuchi, M. Yoshioka, H. Horinaka, K. Wada, T. Matsuyama, T. Saka, T. Baba and T. KatoInternational Workshop on Polarized Electron Sources and Polarimeters (PES2000), AIP Conference Proceedings, Volume 570, Issue 1, pp. 982-987 (2001)
Polarized electron source for a linear collider in JapanT. Nakanishi, K. Togawa, T. Baba, F. Furuta, H. Horinaka, T. Kato, Y. Kurihara, H. Matsumoto, T. Matsuyama, T. Nishitani, S. Okumi, T. Omori, T. Saka, C. Suzuki, Y. Takeuchi, K. Wada, M. Yamamoto and M. YoshiokaNuclear Instruments and Methods in Physics Research A 455 (2000) p109-112
Production of Polarized Electron Beam with Sub-nanosecond Multi-bunch Structure from Superlattice PhotocathodeK. Togawa, T. Nakanishi, T. Baba, F. Furuta, H. Horinaka, Y. Kurihara, H. Matsumoto, T. Matsuyama, T. Nishitani, S. Okumi, T. Omori, C. Suzuki, Y. Takeuchi, K. Wada, K. Wada, M. Yamamoto and M. YoshiokaNuclear Instruments and Methods in Physics Research Section A 455 pp. 118-122 (2000)
Polarized Electron Source for a Linear Collider in JapanT. Nakanishi, K. Togawa, T. Baba, F. Furuta, H. Horinaka, T. Kato, Y. Kurihara, H. Matsumoto, T. Matsuyama, T. Nishitani, S. Okumi, T. Omori, T. Saka, C. Suzuki, Y. Takeuchi, K. Wada, K. Wada, M. Yamamoto and M. YoshiokaNuclear Instruments and Methods in Physics Research Section A Volume 455, Issue 1, pp. 109-112 (2000)