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Tevatron BPM Upgrade Project Review Summary

Tevatron BPM Upgrade Project Review Summary. Stephen Wolbers December 19, 2003 Tevatron Department Meeting. Technology Choice Review. The Tevatron BPM Project had a technology choice review on Tuesday, December 16, 2003.

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Tevatron BPM Upgrade Project Review Summary

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  1. Tevatron BPM Upgrade Project Review Summary Stephen Wolbers December 19, 2003 Tevatron Department Meeting

  2. Technology Choice Review • The Tevatron BPM Project had a technology choice review on Tuesday, December 16, 2003. • Charge, talks, etc. can be found at: http://www-bd.fnal.gov/run2upgrade/reviews/Tev_BPM_TechReview.html • One important explicit goal written in the charge is to have a system ready by October 1, 2004.

  3. Talks at the Review • Project Overview – Steve Wolbers • Requirements – Mike Martens • Specifications – Jim Steimel • P/pbar separation measurement status – Rob Kutschke • Electronics choices – Vince Pavlicek • Summary – Bob Webber

  4. Electronics Choice • The project proposes to use a modified RR Echotek ECDR-GC814/8-SV board as the choice for the core electronics. • Changes include: • Dual-port RAM instead of FIFO. • Flashram instead of EPROM (allows programming FPGA over VME bus). • VME interface replacement (Cyprus->Tundra) • Many reasons for the choice, including: • Timescale • Availability of people/skills • See Bob Webber’s talk for a complete discussion of the choice.

  5. Recommendations from the review(in my words) 1. By February show that a Echotek system (RR version) can produce turn-by-turn and closed orbit measurements using the undersampling technique and with the required accuracy.  This should be done before a release of a purchase order for the full set of boards.  This should not be held up until a proof of the p-pbar de-embedding technique is shown to work.2. There should be an allowance for a second signal path for some subset of the BPM's for a system that can use timing to separate p and pbar signals. 3. A system integrator should be appointed.

  6. Other issues/concerns • Lack of a Commissioning plan • pbar/p separation • Calibration/timing/test systems • Accuracy in light of pickup geometry and off-center beams • BLM interface Q/A, testing, signoff • Schedule • Transition to operations

  7. What’s Next? • Make measurements in Tevatron with Echotek, damper board, scope and DSR board to: • Prove that Echotek can measure p’s with required accuracy • Prove (advance our learning) of the pbar/p separation • Prepare for a large Echotek purchase • Sole source • Lots of signatures • Organize/coordinate important tasks like calibration, commissioning, etc. • Recruit system integrator

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