Vertical Test Stand Update C M Ginsburg Fermilab

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. 2006 C. M. Ginsburg ILC/SRF mtg

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. 2006 C. M. Ginsburg ILC/SRF mtg 2

More Vertical Test Stand Activities • • • Magnetic Shielding (room-temperature & 2 K) – – – Detail designs in progress Plan Request for Proposals to include some design work Meet with J. Zweibohmer and Procurement within ~week – – 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 Radiation Shielding RF System – – Response to RF Review committee Sept. 11 All procurements have been placed 500 W amplifier to be shipped October 5, when tests complete RF personnel safety interlocks in progress, with Chuck Worel (AD/ES&H) 05. Oct. 2006 C. M. Ginsburg ILC/SRF mtg 3

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 A 0 3. 9 GHz vertical test MS Project file update for Ken Domann (and us) in progress 05. Oct. 2006 C. M. Ginsburg ILC/SRF mtg 4

Reminder: Project Scope • • • Single, bare 1. 3 GHz 9 -cell Tesla-style cavities Cryo capacity ~125 W at 2 K Measure Q vs. T (Tmin~1. 5 K) Measure Q vs. Eacc at 2 K 250 W (CW) max RF power required (Q>5 x 109, Eacc<35 MV/m) • Maintain “Controlled Area” status in IB 1 ü < 5 mrem/hr immediately outside the shielding ü <0. 25 mrem/hr in normal working areas • Foreseen upgrades: – Thermal mapping system, variable input coupler, 2 nd cavity test capability 05. Oct. 2006 C. M. Ginsburg ILC/SRF mtg 5