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

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5 Author(s)
Cho, M.H. ; Adv. Photon Source, Argonne Nat. Lab., IL, USA ; Smith, T.L. ; Pasky, S. ; Nassiri, A.
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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

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Particle Accelerator Conference, 2001. PAC 2001. Proceedings of the 2001  (Volume:2 )

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