Vertical Test Stand Update C.M. Ginsburg (Fermilab) For the VTS group: C.Sylvester, Y.Huang, R.Nehring, J.Ozelis, T.Peterson, V.Poloubotko, R.Rabehl, I.Rakhno, C.Reid, M.Wong 05.October.2006

05.Oct.2006C.M. Ginsburg ILC/SRF mtg2 VTS Cryostat Two bids received: Meyer Tool and PHPK After technical & price bid evaluation, PHPK selected Purchase order placed Sept. 20 PHPK: – ASME code calculations done for pressure vessel – Minor changes to design requested – they await our approval Not affecting schedule – Will receive instrumentation (liquid level sensors, thermometry, etc.) and J-T heat exchanger from us in the next few weeks – C.Sylvester and T.Peterson very useful visit to PHPK Sept.26 – Will deliver status in ~biweekly teleconferences Cryostat top plate – Baseline design near final – Some top plate is needed for pressure vessel ASME code stamp, not necessarily one we will use for testing cavities – However, top plate for testing will also need ASME code stamp – Preferable to do both at once Delivery by March 2007

05.Oct.2006C.M. Ginsburg ILC/SRF mtg3 More Vertical Test Stand Activities Magnetic Shielding (room-temperature & 2K) – Detail designs in progress – Plan Request for Proposals to include some design work – Meet with J. Zweibohmer and Procurement within ~week Radiation Shielding – Calculations for “final geometry” in progress – Shielding lid movement design in progress – Plan radiation shielding assessment review within ~month – Kamran Vaziri (ES&H) will be our point-of-contact for radiation safety and permissions RF System – Response to RF Review committee Sept.11 – All procurements have been placed – 500W amplifier to be shipped October 5, when tests complete – RF personnel safety interlocks in progress, with Chuck Worel (AD/ES&H)

05.Oct.2006C.M. Ginsburg ILC/SRF mtg4 Still More VTS Activities 9-cell temperature map (not baseline VTS) – Aseet Mukherjee – Conceptual design completed – Few cheap diodes ordered for R&D – Wish to test parasitically in A0 3.9 GHz vertical test MS Project file update for Ken Domann (and us) in progress

05.Oct.2006C.M. Ginsburg ILC/SRF mtg5 Reminder: Project Scope Single, bare 1.3 GHz 9-cell Tesla-style cavities Cryo capacity ~125 W at 2 K Measure Q vs. T (T min ~1.5 K) Measure Q vs. E acc at 2 K 250 W (CW) max RF power required (Q>5x10 9, Eacc<35 MV/m) Maintain “Controlled Area” status in IB1 < 5 mrem/hr immediately outside the shielding <0.25 mrem/hr in normal working areas Foreseen upgrades: –Thermal mapping system, variable input coupler, 2 nd cavity test capability