TAILIEUCHUNG - Report for ILC-PAC SCRF and ML Technology

The evaluation strategy should include a schedule showing when monitoring and evaluation will occur and who will be responsible for this. Where formal evaluations are undertaken, care must be taken to avoid conflicts of interest. You may need to consider the importance of mid-term evaluations, interim progress reports or post- implementation reviews as a means of providing early feedback to government on progress towards success, and as a means of meeting accountability and transparency requirements. You may also wish to consider the adoption of internal Gateway processes as a way of ensuring continuing alignment between your project and the. | Report for ILC-PAC SCRF and ML Technology Presented by Akira Yamamoto ILC-GDE PM-SCRF and KEK for Project Managers Marc Ross Nick Walker and A. Yamamoto To be presented at ILC-PAC Review May 9 2009 999599 ILC-PAC Review SCRF 1 SCRF Technology Required Parameter Value . Energy 500 GeV Peak luminosity 2x1 o34 cm-2s-1 Beam Rep. rate Pulse time duration Average beam current 9 mA in pulse Av. field gradient MV m 9-cell cavity 14 560 14 560 1 680 560 cryomodule RF units 090509 ILC-PAC Review SCRF 2009 5 10 rrv Outline Introduction R D Status Plan for Technical Design Phase Global Plan and Project Management Summary 090509 ILC-PAC Review SCRF 2 TDP Goals of ILC-SCRF R D Field Gradient 35 MV m for cavity performance in vertical test SO MV m for operational gradient in cryomodule to build two X 11 km SCRF main linacs Cavity Integration with Cryomodule Plug-compatible development to Encourage improvement and creative work in R D phase Motivate practical Project Implementation with sharing intellectual work in global effort Accelerator System Engineering and Tests Cavity-string test in one cryomodule S1 S1-global Cryomodule-string test with Beam Acceleration S2 With one RF-unit containing 3 crymodule 090509 ILC-PAC Review SCRF 4 1 lỉịị Status of 9-Cell Cavity IIV . _. Europe DESY Saclay Gradient 40 MV m max Industrial bulk EP demonstrated Field emission reduced with ethanol rinsing Surface process with baking in Ar-gas Americas Jlab Cornell FNAL ANL Gradient 40 MV m max Field emission reduced by Ultrasonic Degreasing with Detergent Asia KEK IHEP RRCAT Gradient 36MV m LL KEK-JLab 32 MV m TESLA-like KEK 999599 ILC-PAC Review SCRF 5 lib Understanding of Sources for Quench From TTC-09a Summary by H. Padamsee Sources for quench below 25 MV m have been identified Thermometry first used to locate quench regions followed by optical inspection. Quench sites are predominantly bumps and pits on the equator e-beam weld EBW or in the heat affected zone. Picture .

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