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Title: Production of High Density Polarized Electron Beam from GaAs-GaAsP Superlattice Photocathode

Abstract

Future high energy accelerators require polarized electron sources that can generate high bunch charge and/or high density electron beam with low emittance. Various superlattice photocathodes and a high voltage load-lock DC gun have been developed at Nagoya University for this purpose. Using a GaAs-GaAsP strained superlattice photocathode, the bunch charge of 8nC was extracted in a 1.6ns bunch with a 20 mm diameter, and that of 3.3pC in {approx}30ps bunch with 1.2mm diameter.

Authors:
; ; ; ; ; ; ; ; ;  [1]; ; ;  [2];  [3]
  1. Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8602 (Japan)
  2. Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603 (Japan)
  3. High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki, 305-0801 (Japan)
Publication Date:
OSTI Identifier:
21061852
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 915; Journal Issue: 1; Conference: 17. international spin physics symposium, Kyoto (Japan), 2-7 Oct 2006; Other Information: DOI: 10.1063/1.2750947; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; BEAM BUNCHING; BEAM EXTRACTION; DENSITY; ELECTRIC POTENTIAL; ELECTRON BEAMS; ELECTRON DENSITY; ELECTRON GUNS; ELECTRON SOURCES; GALLIUM ARSENIDES; PHOTOCATHODES; POLARIZATION; SEMICONDUCTOR DEVICES; SEMICONDUCTOR MATERIALS; SUPERLATTICES

Citation Formats

Yamamoto, M, Yamamoto, N, Okumi, S, Sakai, R, Kuwahara, M, Morino, T, Tamagaki, K, Mano, A, Utsu, A, Nakanishi, T, Bo, C, Ujihara, T, Takeda, Y, and Kuriki, M. Production of High Density Polarized Electron Beam from GaAs-GaAsP Superlattice Photocathode. United States: N. p., 2007. Web. doi:10.1063/1.2750947.
Yamamoto, M, Yamamoto, N, Okumi, S, Sakai, R, Kuwahara, M, Morino, T, Tamagaki, K, Mano, A, Utsu, A, Nakanishi, T, Bo, C, Ujihara, T, Takeda, Y, & Kuriki, M. Production of High Density Polarized Electron Beam from GaAs-GaAsP Superlattice Photocathode. United States. https://doi.org/10.1063/1.2750947
Yamamoto, M, Yamamoto, N, Okumi, S, Sakai, R, Kuwahara, M, Morino, T, Tamagaki, K, Mano, A, Utsu, A, Nakanishi, T, Bo, C, Ujihara, T, Takeda, Y, and Kuriki, M. 2007. "Production of High Density Polarized Electron Beam from GaAs-GaAsP Superlattice Photocathode". United States. https://doi.org/10.1063/1.2750947.
@article{osti_21061852,
title = {Production of High Density Polarized Electron Beam from GaAs-GaAsP Superlattice Photocathode},
author = {Yamamoto, M and Yamamoto, N and Okumi, S and Sakai, R and Kuwahara, M and Morino, T and Tamagaki, K and Mano, A and Utsu, A and Nakanishi, T and Bo, C and Ujihara, T and Takeda, Y and Kuriki, M},
abstractNote = {Future high energy accelerators require polarized electron sources that can generate high bunch charge and/or high density electron beam with low emittance. Various superlattice photocathodes and a high voltage load-lock DC gun have been developed at Nagoya University for this purpose. Using a GaAs-GaAsP strained superlattice photocathode, the bunch charge of 8nC was extracted in a 1.6ns bunch with a 20 mm diameter, and that of 3.3pC in {approx}30ps bunch with 1.2mm diameter.},
doi = {10.1063/1.2750947},
url = {https://www.osti.gov/biblio/21061852}, journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 915,
place = {United States},
year = {Wed Jun 13 00:00:00 EDT 2007},
month = {Wed Jun 13 00:00:00 EDT 2007}
}