Beams Document 3444-v1

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9mA beam current study at FLASH - DESY

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Submitted by:
Julien Branlard
Updated by:
Julien Branlard
Document Created:
01 Sep 2009, 15:11
Contents Revised:
01 Sep 2009, 15:11
Metadata Revised:
01 Sep 2009, 15:11
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To investigate the ILC-proposed beam current, FLASH will operate with a DC beam current higher than its present value. The objective is to reach the ILC design criteria of 9 mA over a 800 microsecond pulse length. Operating at this higher beam current and longer pulse length will have a significant impact of the flatness of the superconducting cavities. Simulations results show that with the present settings, operating FLASH with 9mA of beam current will make cavities quench. The proposed scheme to tune the cavities of FLASH differently should help prevent cavity from quenching. This paper reports on the study time devoted to this analysis.
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