Present Status of LEBRA at Nihon University.
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Accession number;99A1045378
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| Title;Present Status of LEBRA at Nihon University. |
| Author;
SATO I
(Nihon Univ., Chiba-ken, Jpn)
KAWAKAMI I
(Nihon Univ., Chiba-ken, Jpn)
SATO K
(Nihon Univ., Chiba-ken, Jpn)
MATSUBARA Y
(Nihon Univ., Chiba-ken, Jpn)
NAKAZAWA H
(Nihon Univ., Chiba-ken, Jpn)
NAKAHARA K
(High Energy Accelerator Res. Organization(kek), Ibaraki-ken, Jpn)
YAGISHITA A
(High Energy Accelerator Res. Organization(kek), Ibaraki-ken, Jpn)
KAWAI M
(Kawasaki Heavy Ind., Ltd., Chiba-ken, Jpn)
ODA H
(Kawasaki Heavy Ind., Ltd., Chiba-ken, 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.37-39(1999)
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| Figure&Table&Reference;TBL.1, REF.10 |
| Pub. Country;Japan |
| Language;English |
| Abstract;Free electron laser(FEL) of Nihon University has based on a 125MeV electron linac. These construction were started in 1994 and were completed in 1997. The linac was commissioned at January of 1998. An observation of spontaneous emission(SE) from electrons pass through an undulator was performed and the qualities as the SE spectrum, an emittance, an energy spread and a shape of bunched beam were successively measured. The beam achieved at a current of 210mA with an energy of 87MeV. However, when the beam is transported to the FEL system, it decreased to about a half. What is worse it was unstable. In order to beam stability, improvements for the rf system have been attempted. The linac met with various accidents since its first commissioning. Moreover, the permanent magnets of undulator was damaged by the radiation. Now, the undulator is under repair. This report summarizes the present status and developments in the facility. (author abst.) |
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