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RIS citation export for TUPGW033: Status of Test-Accelerator as Coherent THz Source (t-ACTS) at ELPH, Tohoku University

AU  - Kashiwagi, S.
AU  - Hama, H.
AU  - Hinode, F.
AU  - Kanomata, K.
AU  - Miura, S.
AU  - Morita, N.M.
AU  - Muto, T.
AU  - Nagasawa, I.
AU  - Nanbu, K.
AU  - Ninomiya, S.
AU  - Saito, H.
AU  - Takahashi, K.
AU  - Yamada, H.
ED  - Boland, Mark
ED  - Tanaka, Hitoshi
ED  - Button, David
ED  - Dowd, Rohan
ED  - Schaa, Volker RW
ED  - Tan, Eugene
TI  - Status of Test-Accelerator as Coherent THz Source (t-ACTS) at ELPH, Tohoku University
J2  - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019
CY  - Melbourne, Australia
T2  - International Particle Accelerator Conference
T3  - 10
LA  - english
AB  - A test-Accelerator as Coherent Terahertz Source (t-ACTS) has been under development at the Research Center for Electron Photon Science (ELPH), Tohoku University, in which an intense coherent terahertz radiation is generated from the femtosecond electron pulses. Velocity bunching scheme in a traveling accelerating structure is employed to generate femtosecond electron pulses, and the generation of femtosecond electron pulses was confirmed by spectrum analysis of coherent transition radiation using Michelson interferometer. Coherent transition radiation and coherent undulator radiation in the terahertz (THz) region from the short electron pulses has been demonstrated, and their characteristics such as frequency spectrum, spatial distribution and polarization were measured and compared with theoretical calculations. We have succeeded to generate the coherent transition radiation up to approximately 5 THz and the coherent undulator radiation with narrow bandwidth from 2.6 to 3.4 THz. At present, development of a variable polarized THz light source using a crossed-undulator system is being carried out. In addition, we are developing a nondestructive beam monitor using Cherenkov radiation emitted from the electron pulses. The status of t-ACTS will be presented in this conference.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 1475
EP  - 1477
KW  - radiation
KW  - electron
KW  - undulator
KW  - polarization
DA  - 2019/06
PY  - 2019
SN  - 978-3-95450-208-0
DO  - DOI: 10.18429/JACoW-IPAC2019-TUPGW033
UR  - http://jacow.org/ipac2019/papers/tupgw033.pdf
ER  -