000035050 001__ 35050
000035050 005__ 201110201706.00
000035050 037__ $$aILC-NOTE-2011-060
000035050 041__ $$aeng
000035050 072_7 $$2WebSubmit
000035050 088__ $$aILC-LNF Technical Note, ILC-LNF-004, October 17, 2011
000035050 100__ $$aGallo, A.$$uINFN-LNF
000035050 245__ $$aOptimal Fixed Detuning of the Damping Ring Cavities for the ILC 10 Hz Operation 
000035050 269__ $$c2011-10-17
000035050 300__ $$a11p
000035050 506__ $$aPUBLIC
000035050 520__ $$aRecently a 10 Hz operation modality of ILC linac has been proposed to optimize the collider performances at energies lower than the nominal one. One of the main concern on the feasibility of the 10 Hz modality is represented by the operation of the superconducting cavities in rapidly changing beam loading conditions. The most straightforward solution is to operate the cavities tuned at a fixed optimal frequency, at the price of a certain amount of mismatch and inefficiency in the RF system. In this memo expressions for calculating the optimal values of cavity detuning and cavity input coupling are derived. In the last part of the report the damping ring RF system parameters are evaluated, using the relations derived in the previous paragraphs, to optimize all the proposed operating configurations.
000035050 65017 $$aACCDT
000035050 65027 $$aDR
000035050 8560_ $$fsusanna.guiducci@lnf.infn.it
000035050 8564_ $$uhttp://ilcdoc.linearcollider.org/record/35050/files/ILC-NOTE-2011-060.pdf$$yOptimal Fixed Detuning of the Damping Ring Cavities for the ILC 10 Hz Operation
000035050 8564_ $$uhttp://ilcdoc.linearcollider.org/record/35050/files/ILC-NOTE-2011-060.ps.gz$$yOptimal Fixed Detuning of the Damping Ring Cavities for the ILC 10 Hz Operation
000035050 929__ $$aPermanent
000035050 980__ $$aNOTE