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https://doi.org/10.18429/JACoW-IPAC2022-MOPOTK027
Title Characterization of Various GaN Samples for Photoinjectors
Authors
  • M.B. Andorf, I.V. Bazarov, S.J. Levensonpresenter, J.M. Maxson
    Cornell University (CLASSE), Cornell Laboratory for Accelerator-Based Sciences and Education, Ithaca, New York, USA
  • J. Encomendero, D. Jena, V.V. Protasenko, H.G. Xing
    Cornell University, Ithaca, New York, USA
Abstract Photoemission properties (quantum efficiency, spectral response, and lifetime) of various GaN based photocathodes are summarized, including p-doped samples in its hexagonal phase, cubic GaN and a more exotic 2-D hole gas sample. The 2-D hole contains no dopant impurity but achieves high conductivity via polarization fields produced at the heterojunction of GaN and AlN. For efficient electron production, cesium is used to achieve Negative Electron Affinity.
Funding DOE-HEP DESC0021002 DOE-NP DE-SC0021425
Paper download MOPOTK027.PDF [2.016 MB / 3 pages]
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Conference IPAC2022
Series International Particle Accelerator Conference (13th)
Location Bangkok, Thailand
Date 12-17 June 2022
Publisher JACoW Publishing, Geneva, Switzerland
Editorial Board Frank Zimmermann (CERN, Meyrin, Switzerland); Hitoshi Tanaka (RIKEN, Hyogo, Japan); Porntip Sudmuang (SRLI, Nakhon, Thailand); Prapong Klysubun (SRLI, Nakhon, Thailand); Prapaiwan Sunwong (SRLI, Nakhon, Thailand); Thakonwat Chanwattana (SRLI, Nakhon, Thailand); Christine Petit-Jean-Genaz (CERN, Meyrin, Switzerland); Volker R.W. Schaa (GSI, Darmstadt, Germany)
Online ISBN 978-3-95450-227-1
Online ISSN 2673-5490
Received 08 June 2022
Revised 10 June 2022
Accepted 17 June 2022
Issue Date 26 June 2022
DOI doi:10.18429/JACoW-IPAC2022-MOPOTK027
Pages 500-502
Copyright
Creative Commons CC logoPublished by JACoW Publishing under the terms of the Creative Commons Attribution 3.0 International license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI.