Klystron-modulator system performance for the Advanced Photon Source linear accelerator

Author

Cho, M.H. ; Smith, T.L. ; Pasky, S. ; Nassiri, A. ; Pile, G.

Author_Institution

Adv. Photon Source, Argonne Nat. Lab., IL, USA

Volume

2

fYear

2001

fDate

2001

Firstpage

987

Abstract

The S-band linear accelerator (linac), which was built to be the electron source and the front end of the Advanced Photon Source (APS) injector, is now also being used to support a low-energy undulator test line (LEUTL) to drive a free-electron laser (FEL). The APS linac system employs five units of pulsed high-power klystrons (35-MW class) as the main rf sources. The matching pulse modulators provide high-voltage pulses running at 280 kV and 300 A with 3.5-μs pulse width and a nominal pulse repetition rate of 30 Hz. The system availability of the entire APS linac during the last run period of calendar year 2000 was estimated to be slightly over 95%. We present a discussion of the reliability and various fault statistics of the klystron-modulator system together with the key features of the system hardware

Keywords

electron accelerators; klystrons; linear accelerators; modulators; reliability; 280 kV; 3.5 mus; 35 MW; Advanced Photon Source; S-band linac; S-band linear accelerator; fault statistics; free-electron laser; klystron; low-energy undulator test line; modulator; pulse repetition rate; pulse width; pulsed high-power klystrons; reliability; Electron sources; Free electron lasers; Klystrons; Linear accelerators; Linear particle accelerator; Pulse width modulation; Space vector pulse width modulation; System performance; Testing; Undulators;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 2001. PAC 2001. Proceedings of the 2001

Conference_Location

Chicago, IL

Print_ISBN

0-7803-7191-7

Type

conf

DOI

10.1109/PAC.2001.986550

Filename

986550