Closed Actions, SPL Steering Group

Assigned to Start date Description State Result
FrankGerigk 2007-10-29 evaluate if 704 MHz is the optimum frequency and consider 1.4 GHz presentation edit
FrankGerigk 2007-11-09 find old arguments for 704 MHz choice. SPL meeting 71, see presentation the main argument was that higher frequencies do not yield higher gradients and that an additional frequency will only increase the cost of the RF system (at this time it was still assumed that Linac4 uses 704 MHz in its high-energy part), furthermore test results of 704 MHz low-beta cavities seemed encouraging. It was pointed out that each frequency jump entails longitudinal re-matching, which means lowering the synchronous phase and therefore lowering the acceleration efficiency. edit
FrankGerigk 2007-11-09 information on 1408 MHz klystrons from CPI/Toshiba no information from CPI received, Toshiba is interested in a development for 1408 MHz, they could relatively easily adapt their 1300 MHz single beam klystron to 1408 MHz, it would be more effort to have a multi-beam klystron, an average power of 250 to 500 kW seems realistic edit
Main.Everyone 2007-11-26 establish a man-power list for each section (beam dynamics, RF system, TS, cryogenics, cavity development, cavity testing) and send the data to R. Garoby edit
VittorioParma 2007-11-26 check compatibility of ILC/TTF cryo-modules with 704 MHz cavities seems possible, but modifications will be necessary edit
EdmondCiapala, OlivierBrunner 2008-09-24 contribution on RF hardware for SPL summary document on parameters done edit
AlessandraLombardi 2008-10-17 verify the optimum beta values for the SPL cavities edit
Main.Madeleine, Main.Catin 2008-10-31 set up INDICO web-site for SPL collaboration meeting edit

-- FrankGerigk - 29 Oct 2007

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Topic revision: r3 - 2007-11-27 - FrankGerigk
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