N. Dhanaraj 1 Single Cell Program - Status Single Cell Program - Status March 1, 2007 Thursday

N. Dhanaraj 2 Single Cell Testing Facility at Fermilab Goals:  Fast turnover testing of 1-cell cavities  ILC S0 milestone  Address, explore and incorporate other cavity research issues (Advanced R&D)  Collaborate with other labs (tight-loop processing,….)

N. Dhanaraj 3Infrastructure Action Items 1.Testing Station 2.Diagnostics 3.Cavity Production 4.Processing

N. Dhanaraj 4 Testing Station-RF System Rene Padilla – Working on modifying A0 System to fit 3.9 and 1.3 GHz Components that need to be changed – Identified Quotes and ordering of components – In Process Amplifier – Ordered (Identical to the VTS one) One –Time Recalibration of system– TBD (Rene and John Reid) Safety Review Documentation -TBD Safety Interlock –TBD (Rene and John Reid) Software modification (more visual, eg. Real-time Q vs E curve– TBD (Rene and John Reid)

N. Dhanaraj 5 Testing Station-RF System (Contd.) 3.9 System 1.3 SystemFrequency Range include 1.3 and 3.9 GHz

N. Dhanaraj 6 Testing Station- Couplers Timer has coupler design for center cell Relative position of vacuum port and couplers (to help determine antenna length)-finalized Antenna length for Long End Cell (DESY Standard single cell and ours? ) - TBD Feedthroughs –Input available, Pick-up – To be ordered Mating flange and antenna – To be made Input Coupler Feedthrough

N. Dhanaraj 7 Testing Station- Top Plate/Insert Design initially started by Lyle Rosine, now taken over by Frank Mcconologue

N. Dhanaraj 8 Diagnostics - Thermometry Efforts to test thermometry on 1-cell to help migrate to 9-cell setup Diode Sensors Calibration -In progress (Aseet) Irradiation test at A0, 3.9 GHz testing – March 13 th ? (Aseet) PPD & Aseet -Board Design Read out board – In Progress Fixture for boards – Jlab Idea (Frank, Aseet and Nandhini)

N. Dhanaraj 9 Cavity Production Die drawings – Received from Jlab (Larry Turlington) RRCAT (India) to make Dies Will order single cell cavities for this year from AES Roark possibility overlooked for now due to budget issues Received a single cell cavity from DESY for T-map studies and commissioning of system (Wolf-Dietrich) Seals Al – Diamond for ILC– Ordered (Dan Olis)

N. Dhanaraj 10Processing EP, BCP will be done at ANL End Teflon flanges for BCP: Design concept (Cristian & Allan), Frank Mcconologue to work on modeling A0 HPR seems suitable for rinsing single cell 1.3 GHz cavities (Jlab 1100 psi compared to ours 1200 psi, our nozzle size can be doubled)-A0 Techs Adapters

N. Dhanaraj 11 Safety Reviews & Other Things Need to prepare for Pressure vessel safety – In Progress (Nandhini) Radiation Safety RF safety

N. Dhanaraj 12Budget Priority Description Fermi M&S Time scale Comments Cell test stand Setup 1.00 FTE ENG 0.60 FTE DES $235K1 yearIncludes 3 1-cell cavities 2008 Program S0 SRF R&D 0.50 FTE TEC 0.75 FTE ENG 0.50 FTE TEC $100K $60K 1 year startup Helium + small material 3 additional cavities Total FTE = 1.75 ENG + 1 TEC DES = 3.35 Total M&S $395

N. Dhanaraj 13 Schedule In Progress Always!!!

N. Dhanaraj 14Acknowledgement AD – Allan Rowe, Brian DeGraff, Wade Muranyi, Mike Rauchmiller (Rocky), Helen Edwards, John Reid, Rene Padilla, Mike Foley, Scott Reeves, Yun He SRF Materials Group VTS Group TD – Harry Carter, Timergali Khabiboulline, Charlie Cooper, Dave Burke, Camille Ginsburg, Tug Arkan, Dan Olis, Marc Ross, Shekhar Mishra, Jim Kerby, Don Mitchell, Lyle Rosine, Chuck Grimm, Frank Mcconologue, Kerry Ewald CDF – Aseet Mukherjee PPD Jlab – Gigi Ciovati, Peter Kneisel, Ganapati Myneni, Larry Turlington DESY – Wolf-Dietrich Moeller

N. Dhanaraj 15 Tentative Testing Plans Process R&D (ILC-S0) Reproducibility of the tight loop processing Alternative rinsing (ethanol, degreasing) Pre-processing (tumbling) Baking study SRF R&D Post processing (plasma cleaning) Large grain – Grain size, orientation – Grain boundary dynamics – Processing optimization Beyond Nb (2-3 years from now) –Multilayer (NbN, Nb 3 Sn, MgB 2 … on Nb) –Collaboration W. U

N. Dhanaraj 16 Thank You !!