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Welcome and Introduction to the Workshop!

Welcome and Introduction to the Workshop!. Roger M. Jones Cockcroft Institute and The University of Manchester. Higher Order Mode Diagnostics and Suppression in SC Cavities (HOMSC12) 25 th - 27 th June 2012 The Cockcroft Institute, Daresbury. Logistics.

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Welcome and Introduction to the Workshop!

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  1. Welcome and Introduction to the Workshop! Roger M. JonesCockcroft Institute andThe University of Manchester Higher Order Mode Diagnostics and Suppression in SC Cavities (HOMSC12)25th - 27th June 2012The Cockcroft Institute, Daresbury

  2. Logistics • All plenarieswill take place here in the Walton seminar room. • Coffee will be served next door in rm G08. • Lunch will be provided in the Cockcroft Institute building (rm G08) at 12:00pm. • Posters will be superintended by presenters on Monday & Tuesday 12:00 – 12:30. • After lunch on Monday and Tuesday Working Groups will meet (at 13:40). See the booklet with full room assignments (any potential changes to WG talks will be posted) –note any combined WG sessions • Talks should be either uploaded via the conference website -or given to the Scientific Secs or Plenary Chair or WG conveners. • Safety exits are evident. Should there be a fire alarm –meet at the muster point outside

  3. Daresbury Campus Chester ~ 16 miles Merrison Lecture theatre Cockcroft Institute ALICE Manchester ~ 26 miles

  4. Overview • Welcome to The Cockcroft Institute! • For any help with taxis etc please contact Sue Waller (when not at reception to be found here: sue.waller@stfc.ac.uk, or in room S26 on top floor). • The meeting is scheduled to finish at lunch time on Wednesday (last tutorial 12-1pm). A Wednesday morning plenary session is scheduled and a summary of WGs will be the final session. Lunch included for all three days. • The tour of EMMA, ALICE and the RF labs will be on Tuesday at 16:10. Phillipe Goudket is in charge of all tours. Contact Phillipe or registration desk for further details. • Banquet attendees on Tuesday will take a bus from Cockcroft at 17:45 back to the hotel, and then at 18:30 to Ruthin Castle in North Wales (arrive ~19:15). A special student poster will be presented during the banquet. • The deadline for NIMs papers is the last day of the workshop, Wednesday 27th June Full details on the HOMSC12 website.

  5. Planning • Builds on success of DESY workshop: 1. Higher Order Mode Measurements in Superconducting Accelerating Cavities (Jan 2007) hosted by Nicoleta Baboi, and 2. HOM Damping in SCRF Cavities hosted by Matthias Liepe (Oct 2010) • Unique, in that this brings together national labs, Universities, and Industry, all on the umbrella of HOMs in SC cavities. • Reminder, all papers should be submitted to NIMS this week! • Thanks to Sponsors: RF Tech (EUCARD), Cockcroft Institute, ASTeC, IoP, ICFA • Valuable advice – especially: Steve Buckley & Sue Waller - LoC+ Nicoleta Baboi - SPC • Please help your Convenors in the Working Group sessions! • 58 registered (26 UK, 14 Europe, 11USA, 3Asia) • Enjoy the workshop!

  6. HOMSC12 Workshop • HOM BPM diagnostics and measurement methods • HOM couplers and influence of FP couplers • Novel HOM suppression in TEM and other cavity shapes • Special considerations in third harmonic, deflecting and crab cavities • RF absorbing materials • Antenna HOM absorbers • Beam-pipe HOM absorbers • Waveguide HOM absorbers • HOM simulation tools and models

  7. Discussion Topics • Pool collective resources in the HOM SC area. • Encompasses issues in both electron and proton linacs TESLA style cavities, third harmonic cavities, and TEM crabbing and other cavity designs will be considered.   • Sampling these HOMs also provides a means of diagnosing the beam’s position, cavity alignment, as well as intra-cell alignment. Beam dynamics considerations  drive the damping requirements –and ultimate limits of these beam-based diagnostics? • Current experiments at FLASH, Cornell University, JLab, FNAL will be reviewed. The necessity of employing HOM couplers will be discussed –along with the potential for the removal of these couplers. The current status of both experimental and theoretical work in this area will be discussed – how do the codes match-up with experimental results on damping? • The status of laboratory cryomodule configurations, such as the Daresbury International Cryomodule Configuration (DICC), will be reviewed.

  8. Goals • Review state of art HOM Diagnostics and Suppression • Understand proposed project demands –and integrate physics with industrial/practical aspects • Examine R&D challenges – Light Sources (XFEL..), Particle Physics Applications (Project X, ILC..) • Summarise future development priorities • Recommend necessary steps - physics and technology • Strengthen/foster international collaborations

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