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RIS citation export for WEPAB039: Construction of a Compact Electron Injector Using a Gridded RF Thermionic Gun and a C-Band Accelerator

TY  - CONF
AU  - Inagaki, T.
AU  - Asaka, T.
AU  - Dewa, H.
AU  - Fukui, T.
AU  - Hara, T.
AU  - Hashimoto, S.
AU  - Hiraiwa, T.
AU  - Hosoda, N.
AU  - Inoue, S.I.
AU  - Iwai, E.
AU  - Kajimoto, K.
AU  - Kondo, C.
AU  - Maesaka, H.
AU  - Magome, T.
AU  - Minagawa, Y.
AU  - Nakata, S.
AU  - Ohshima, T.
AU  - Sakurai, T.
AU  - Seno, T.
AU  - Sumitomo, H.
AU  - Takesako, R.
AU  - Tanaka, H.
AU  - Tanaka, S.
AU  - Yamamoto, R.
AU  - Yanagida, K.
AU  - Yoshioka, M.
ED  - Liu, Lin
ED  - Byrd, John M.
ED  - Neuenschwander, Regis T.
ED  - Picoreti, Renan
ED  - Schaa, Volker R. W.
TI  - Construction of a Compact Electron Injector Using a Gridded RF Thermionic Gun and a C-Band Accelerator
J2  - Proc. of IPAC2021, Campinas, SP, Brazil, 24-28 May 2021
CY  - Campinas, SP, Brazil
T2  - International Particle Accelerator Conference
T3  - 12
LA  - english
AB  - A compact and low-cost 1 GeV injector linac was designed and constructed to provide injection beams to the soft X-ray synchrotron radiation facility NewSUBARU instead of the SPring-8 injector system, which will be shutdown. The total length of the injector linac needs to be less than 70 m to fit into the existing tunnel. To this end, an RF electron gun with a gridded thermionic cathode directly attached to a 238 MHz RF cavity was developed and adopted. The 500 keV, 0.6 ns, 1 nC beam emitted from the cavity is compressed to 3 ps by velocity bunching driven by a 476 MHz RF cavity and a S-band RF structure. The short-pulsed beams are accelerated up to 1 GeV with 16 C-band RF structures. In the C-band accelerator section, the klystron output of 50 MW is multiplied 4 times by a pulse compressor and fed to the 4 RF structures to generate a high accelerating field of 31 MV/m. A low-level RF system consisting of a MTCA.4 based high-speed digitizers and RF frontend boards has been constructed. This injector system is used at the 3 GeV SR facility currently under construction in Sendai. In this paper, we report the design outline and the operational performance of the injector system.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 2687
EP  - 2689
KW  - linac
KW  - electron
KW  - injection
KW  - operation
KW  - emittance
DA  - 2021/08
PY  - 2021
SN  - 2673-5490
SN  - 978-3-95450-214-1
DO  - doi:10.18429/JACoW-IPAC2021-WEPAB039
UR  - https://jacow.org/ipac2021/papers/wepab039.pdf
ER  -