Present Status of RF Gun for Highly Brilliant Electron Beam Production in Kyoto University.
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Accession number;99A1045385
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| Title;Present Status of RF Gun for Highly Brilliant Electron Beam Production in Kyoto University. |
| Author;
MASUDA K
(Kyoto Univ., Kyoto, Jpn)
IKEDA R
(Kyoto Univ., Kyoto, Jpn)
YAMAGUCHI T
(Kyoto Univ., Kyoto, Jpn)
KII T
(Kyoto Univ., Kyoto, Jpn)
YOSHIKAWA K
(Kyoto Univ., Kyoto, Jpn)
YAMAZAKI T
(Kyoto Univ., Kyoto, Jpn)
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Journal Title;Proc Symp Accel Sci Technol
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Journal Code:F0512B
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ISSN:0914-2789
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VOL.12th;NO.;PAGE.57-59(1999)
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| Figure&Table&Reference;FIG.6, REF.6 |
| Pub. Country;Japan |
| Language;English |
| Abstract;An S-band RF gun having 4.5 side-coupled cavities with a thermionic cathode was set up in the beam line, and its fundamental characteristics have been measured, such as beam current, the beam sizes and the voltage standing-wave ratio(VSWR) of the RF gun. The beam current was found to be nearly proportional to the input RF power(up to 3.5MW). Also, the transverse profile was found to be nearly cylindrically symmetric and the beam size was found to decrease together with increase of the input RF power. This is because the higher the electron beam gets energy from the RF power, the interaction time with space charge effects becomes smaller, eventually the beam receives less transverse momentum. The time evolution of the reflected RF power was also measured and compared with the analytical solution of the equivalent resonant circuit, and the agreements were seen. (author abst.) |
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