LHC-CC11, 5th LHC Crab Cavity Workshop

14 Nov 2011, 08:30 → 15 Nov 2011, 18:30 Europe/Zurich

Morning: 60-6-015 & Afternoon: 30-7-018 (CERN)

Frank Zimmermann (AB/ABP), Rama Calaga (CERN), Rogelio Tomas (CERN)

A two day crab cavity workshop (LHC-CC11) will be held at CERN, Geneva.  

The main goals of this workshop are to discuss:

1. Technology status in view of the latest developments on compact cavities
2. Revised beam parameters and upgrade studies with crab crossing
3. LHC and SPS beam studies and future crab cavity tests

Paper http://cdsweb.cern.ch/record/1439010/files/CERN-ATS-2012-055.pdf

Slides INTRO.pdf

Monday, 14 November

08:50 → 10:20 LHC Status & Upgrade Overview

08:50 Welcome Address

Speaker: Prof. Lucio Rossi (CERN)

09:00 LHC Performance & Main Limitations, 2011

Speaker: Mike Lamont (CERN)

Slides LHC4Crabs-Nov11.pdf LHC4Crabs-Nov11.pptx

09:30 Highlights from LHC Physics

Speaker: Dr Fabiola Gianotti (CERN)

Slides Fabiola.pdf Fabiola.pptx

09:50 Project X & Synergies with Crab Cavities

Speaker: Mark Champion (Fermilab)

Slides A_beam_splitter_for_PX.pdf A_beam_splitter_for_PX.pptx

10:10 Discussion

10:20 → 10:35 Coffee

10:35 → 12:05 Technology Status & Challenges

10:35 4 Rod RF Design

Speaker: Dr Graeme Burt (Lancaster University)

Slides LHCCC11_BH.pdf LHCCC11_BH.pptx

10:55 Ridged Waveguide & Modified Parallel Bar

Speaker: Jean Delayen (Thomas Jefferson National Accelerator Facility)

Slides LHC-CC11-Parallel-_Bar_Design.pdf LHC-CC11-Parallel-_Bar_Design.pptx

11:15 Quarter Wave Resonator

Speakers: Ilan Ben-Zvi (Brookhaven National Laboratory), Rama Calaga (CERN)

Slides QW_CC11.pdf

11:30 Slim Cavity Development

Speaker: Luca Ficcadenti (CERN)

Slides Slim_Crab_Cavity_II_-_800MHz.pdf Slim_Crab_Cavity_II_-_800MHz.pptx

11:45 RF Simulations for LHC Crab-Cavity Designs using SLAC Codes

Speaker: Zenghai Li (SLAC)

Slides Z-Li-LHC-CC11-Compact-CrabCavity.pdf Z-Li-LHC-CC11-Compact-CrabCavity.pptx

12:05 → 13:55 Workshop Lunch @ Restaurant 2

13:55 → 14:00 Room Change to Bldg 30 (30-7-018)

14:00 → 15:45 Prototyping Cavities & Cryomodule

14:00 Optimum Fabrication Techniques for Prototyping

Speakers: Dr Graeme Burt (Lancaster University), Dr Robert Rimmer (Jefferson Lab)

14:15 4 Rod Prototyping Status

Speaker: Dr Graeme Burt (Lancaster University)

Slides LHCCC11_Burt.pdf LHCCC11_Burt.ppt

14:30 Parallel Bar Prototyping Status

Speakers: Jean Delayen (Thomas Jefferson National Accelerator Facility), Terry Grimm (Niowave Inc.)

Slides LHC-CC11-Parallel-Bar_Prototyping_Status.pdf LHC-CC11-Parallel-Bar_Prototyping_Status.pptx

14:50 Cryogenics in SPS & LHC (2K/4K)

Speaker: Mr Laurent Tavian (CERN)

Slides LHC_CC11_Cryogenics.pdf LHC_CC11_Cryogenics.pptx

15:10 Cryomodule Concepts, Animated Discussion

Speaker: Vittorio Parma (CERN)

15:45 → 16:00 Coffee

16:00 → 18:00 Beam tests

16:00 Crab cavity integration into the LHC

Speaker: Dr Sylvain Weisz (CERN)

Slides CC2011_Presentation_141111.pptx

16:00 Prototype integration into SPS (CCinS)

Speaker: Dr Elias Metral (CERN)

Slides SPSBeamTestsWithCrabCavities_EM.pdf

16:20 SPS Beam Studies

Speaker: Rama Calaga (Brookhaven National Laboratory (US))

Slides SPSTESTS_C11.pdf

16:40 SPS Emittance Growth Simulations

Speaker: Hyung Jin Kim (Fermilab)

Slides lhc-cc11-11-14-2011.pdf

17:00 LHC Beam-Beam MDs & Leveling Possibilities

Speaker: Werner Herr (CERN)

Slides cc1.pdf

17:20 Discussion, Beam Studies

Tuesday, 15 November

09:00 → 10:30 Layout & Beam Parameters

09:00 Upgrade Beam Parameter Space

Speaker: Dr Frank Zimmermann (CERN)

Slides UpgradeBeamParameterSpace-FrankZimmermann.pdf UpgradeBeamParameterSpace-FrankZimmermann.pptx

09:20 Optics follow up: Alternative crossing scheme and field quality modeling

Speaker: Riccardo De Maria (CERN)

Slides workoutline.pdf

09:40 Non-Linearity of Deflecting Field

Speaker: Alexej Grudiev (CERN)

field map UKCAV2011_Evecomp_4Dave.zip UKCAV2011_Hvecomp_4Dave.zip

Slides Non-Linearity_of_Deflecting_Field_for_LHC-CC11.pdf Non-Linearity_of_Deflecting_Field_for_LHC-CC11.pptx

10:00 Sympletic Maps for RF Multipoles

Speaker: Robert Barrie Appleby (University of Manchester (GB))

Slides cc_rob_nov11.pdf

10:15 Crab Cavities in PTC

Speaker: Javier Barranco Garcia (CERN)

Slides LHC_CC11_Barranco.pdf

10:30 → 10:45 Coffee

10:45 → 12:05 Machine Protection & Feedback

10:45 Cavity Quench and Field Evolution

Speaker: Detlef Reschke (DESY)

Slides message_from_Detlef_Reschke,_DESY.pdf message_from_Detlef_Reschke,_DESY.pptx

10:45 SRF Experience with Complex Shapes

Speaker: Sebastien BOUSSON (CNRS/IN2P3/IPN Orsay)

Slides Bousson-SRF_experience_with_complex_shape.pdf

11:05 Collimation Tolerances

Speaker: Dr Ralph Wolfgang Assmann (CERN)

Slides 2011-11-15_crab11_assmann.pdf 2011-11-15_crab11_assmann.ppt

11:25 Machine Protection Simulations, I

Speaker: Tobias Baer (Universitaet Hamburg)

Slides 2011.11.15_-_Machine_Protection_of_LHC_Crab_Cavities_(Tobias_Baer).pdf 2011.11.15_-_Machine_Protection_of_LHC_Crab_Cavities_(Tobias_Baer).pptx

11:45 Machine Protection Simulations, II

Speaker: Bruce Yee (CINVESTAD)

Slides LHC-CC11-Bruce-Yee.pdf

12:05 → 13:55 Lunch (on your own) @ Restaurant 2

13:55 → 14:00 Room Change to Bldg 30 (30-7-018)

14:00 → 15:40 RF Impedance, Noise & Controls

14:00 Impedance Aspects

Speaker: Alexey Burov (Fermi National Accelerator Lab. (US))

Slides Burov_LHC_CC11.pdf

14:20 RF Noise, Non-Linearity & Effects

Speaker: Kazuhito Ohmi (KEK)

Slides NonlinearResponse_Ohmi.pdf

14:40 Beam-Beam Simulations

Speaker: Stefan Paret

Slides CC_nov2011.pdf

15:00 Synchro-Betatron Studies

Speaker: Simon Mathieu White (Universite de Paris-Sud 11 (FR))

Slides CC_11.pdf

15:20 LHC & SPS RF Controls for Crab Cavities

Speaker: Philippe Baudrenghien (CERN)

Slides

• CC2011LLRF_v1.pdf
• CC2011LLRF_v1.pdf
• CC2011LLRF_v1.pptx

15:40 → 16:00 Coffee

16:00 → 18:30 Schedule & Future Outlook

16:00 HL-LHC & Crab Planning

Speaker: Dr Erk Jensen (CERN)

Slides CC11_EJ.pdf CC11_EJ.pptx

16:20 Detector Upgrades and Requirements

Speaker: Marzio Nessi (CERN)

16:40 Advisory Board, Round Table

Frequency review, voltage requirements and optimization, uniformity of field across aperture, mechanical alignment, orbit control and active feedback, SPS test preparations (LS1), elliptical back-up solution, vacuum issues with cold second beam tube, common platform cryomodule design, temperature (2K/4K) for SPS tests and LHC,spacial constraints in IR1 & IR5 etc..

Speaker: Steve Myers (CERN)