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ICFA Mini Workshop on High Order Modes in Superconducting Cavities

from Monday, July 14, 2014 (7:30 AM) to Wednesday, July 16, 2014 (6:00 PM)


        : Sessions
    /     : Talks
        : Breaks
Jul 14, 2014
Jul 15, 2014
Jul 16, 2014
AM
7:30 AM --- Transportation from hotels (Hyatt Place & Hotel Arista) to Fermilab ---
8:00 AM --- Registration ---
8:30 AM Welcome to Fermilab - Nigel Lockyer (FNAL)   (One West)
8:45 AM Introduction and logistics - Vyacheslav Yakovlev (FNAL)   (One West)
Slides
9:00 AM
Plenary session 1 (V. Yakovlev, R. Jones) (until 10:20 AM) (One West)
9:00 AM HOMs for the Future High Intensity and CW Superconducting Accelerators - Hasan Padamsee (FNAL)   (One West)
Slides
9:25 AM Overview of HOMs and Wakefield Issues in SC Cavities and Systems - Roger Jones (University of Manchester)   (One West)
Slides
9:50 AM HOM damping requirements and HOM beamline load for the Cornell ERL - Matthias Liepe (Cornell University)   (One West)
Slides
10:20 AM --- Coffee Break - Wilson Hall Atrium ---
10:40 AM
WG1 - HOM Damping Requirements (J. Sekutowicz, N. Solyak) (until 12:00 PM) (One West)
10:40 AM XFEL HOM Specifications - Alexey Sulimov (DESY)   (One West)
Slides
11:05 AM HOMs and wakes in LCLS-II Superconducting linac - Karl Bane (SLAC)   (One West)
Slides
11:30 AM Overview of HOM damping in deflecting cavity - Dr Binping Xiao (Brookhaven National Lab)   (One West)
Slides
8:00 AM --- Transportation from hotels (Hyatt Place & Hotel Arista) to Fermilab ---
8:30 AM
WG2 - HOM-based diagnostics (N. Baboi, R. Jones) (until 10:05 AM) (One West)
8:30 AM Stability of HOM BPMs in FLASH - Liangliang Shi (DESY)   (One West)
Slides
8:55 AM Simulation results for diagnostics in 3.9 GHz cavities - Thomas Flisgen (University of Rostok)   (One West)
Slides
9:20 AM Measuring HOM parameters with beam for Cornell's ERL cavities - Daniel Hall (Cornell University)   (One West)
Slides
9:45 AM Discussion - WG2 (N. Baboi, R. Jones)   (One West)
10:05 AM --- Coffee Break - Wilson Hall Atrium ---
10:25 AM
WG3 - RF simulation and beam dynamics (M. Liepe, O. Napoli) (until 12:25 PM) (One West)
10:25 AM RF simulation for accurate measurements of HOM-material properties - Valery Shemelin (Cornell University)   (One West)
Slides
10:50 AM Beam dynamics in the ESS linac under the influence of monopole and dipole modes - Aaron Farricker (University of Manchester)   (One West)
Slides
11:15 AM HOMs in velocity-of-light spoke cavities - Christopher Hopper (ODU)   (One West)
Slides
11:40 AM HOMs and HOM damping in RF-dipole cavities - Subashini De Silva (JLab)   (One West)
Slides
12:05 PM Discussion - WG3 (M. Liepe, O. Napoli)   (One West)
8:30 AM --- Transportation from hotels (Hyatt Place & Hotel Arista) to Fermilab ---
9:00 AM
Plenary session 2 / Closeout (V. Yakovlev, R. Jones) (until 10:20 AM) (One West)
9:00 AM Summary of WG1 (J. Sekutowicz, N. Solyak)   (One West)
Slides
9:20 AM Summary of WG2 (N. Baboi, R. Jones)   (One West)
Slides
9:40 AM Summary of WG3 (M. Liepe, O. Napoly)   (One West)
Slides
10:00 AM Summary of WG4 (J. Delayen, T. Khabiboulline)   (One West)
Slides
10:20 AM --- Coffee Break - Wilson Hall Atrium ---
10:40 AM
Plenary session 3 / Closeout (V. Yakovlev, R. Jones) (until 12:00 PM) (One West)
10:40 AM Summary of WG5 (B. Chase, L. Doolittle)   (One West)
Slides
11:00 AM Closing remarks - Vyacheslav Yakovlev (FNAL)   (One West)
Slides
PM
12:00 PM
Workshop Group Photo (until 12:10 PM) ()
12:10 PM --- Lunch Break - Wilson Hall Café ---
1:30 PM
WG1 - HOM Damping Requirements (J. Sekutowicz, N. Solyak) (until 3:00 PM) (One West)
1:30 PM Physics of wake potentials of very short bunches - Gennady Stupakov (SLAC)   (One West)
Slides
1:55 PM Resonance HOM excitation in LCLS-II - Alexander Sukhanov (FNAL)   (One West)
Slides
2:15 PM HOM-free deflecting cavity - Timergali Khabiboulline (FNAL)   (One West)
Slides
2:40 PM Discussion - WG1 (J. Sekutowicz, N. Solyak)   (One West)
3:00 PM --- Coffee Break - Wilson Hall Atrium ---
3:20 PM
WG2 - HOM-based diagnostics (N. Baboi, R. Jones) (until 5:15 PM) (One West)
3:30 PM Introduction to WG2 - Roger Jones (University of Manchester)   (One West)
Slides
3:35 PM Overview of HOM-based diagnostics at FLASH and the European XFEL - Nicoleta Baboi (DESY)   (One West)
Slides
4:00 PM HOM-based diagnostics for 3.9 GHz cavities" - Nathan Eddy (FNAL)   (One West)
Slides
4:15 PM Plans at FNAL (for HOM-based diagnostics) - Nathan Eddy (FNAL)   (One West)
Slides
4:30 PM HOM studies on cavity alignment at KEK and DESY - Ayaka Kuramoto (KEK)   (One West)
Slides
4:55 PM Discussion - WG2 (N. Baboi, R. Jones)   (One West)
5:30 PM
Student Poster Session/Reception (until 7:30 PM) ()
7:30 PM --- Transportation to hotels (Hotel Arista & Hyatt Place) ---
12:25 PM --- Lunch Break - Wilson Hall Café ---
1:30 PM
WG4 - HOM damping couplers and loads (J. Delayen, T. Khabiboulline) (until 3:50 PM) (One West)
1:30 PM HOM coupler for SPL project - Kai Papke (CERN)   (One West)
Slides
1:55 PM HOM measurements at R&D ERL and developing new HOM couplers for eRHIC - Wencan Xu (BNL)   (One West)
Slides
2:20 PM HOM survey results from JLab upgrade cryomodule production run - Jiquan Guo (JLab)   (One West)
Slides
2:45 PM First expedience with an HOM coupler for the 56 MHz quarter wave SRF cavity - Sergey Belomestnykh (BNL)   (One West)
Slides
3:10 PM HOM coupler heating in CW operation - Nikolay Solyak (FNAL)   (One West)
Slides
3:30 PM Discussion - WG4 (J. Delayen, T. Khabiboulline)   (One West)
3:50 PM --- Coffee Break - Wilson Hall Atrium ---
4:10 PM
WG5 - LLRF, controls and system integration (B. Chase, L. Doolittle) (until 5:55 PM) (One West)
4:10 PM LLRF theory and vector control interaction with HOM signals - Brian Chase (FNAL)   (One West)
Slides
4:30 PM Discussion - On phase measurements at various SC facilities   (One West)
4:50 PM HOM transfer function measurements and other topics - Larry Doolittle (LBNL)   (One West)
Slides
5:10 PM Discussion - On HOMs and tuning   (One West)
5:30 PM Discussion - Design approaches to HOM receivers (B. Chase, L. Doolittle)   (One West)
6:00 PM --- Workshop dinner ---
8:00 PM --- Transportation to hotels (Hotel Arista & Hyatt Place) ---
12:00 PM --- Lunch Break - Wilson Hall Café ---
1:30 PM --- Tour of the Fermilab SRF facilities ---
3:30 PM --- Transportation to hotels (Hotel Arista & Hyatt Place) ---