New! 05.04.2005

HHH-2004 Proceedings

Announcement 11.11.2004

Announcement 11.11.2004

Please send your posters and contributions to panel discussions in electronic format to Conf-HHH-2004@cern.ch, if they are not yet posted on the web

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CERN, 8–11 November 2004 Council Chamber   workshop goals, scope,format        session  assignments       List of Abstracts  Registration       list of participants         Proceedings       organizing committee         email       information      Poster

Related posters:
- Exploring a nonlinear collimation system for the LHC (J. Resta Lopez, A. Faus-Golfe, CSIC-IFIC; F. Zimmermann, CERN)

- What is an acceptable vacuum pressure in the LHC arcs? (B. Jeanneret, F. Zimmermann, CERN)
- Morphological and structural studies of crystals for channeling of relativistic particles (S. Baricordi, V. Guidi, et al., INFN)
- Intensity limitations due to electron-cloud heat load for the LHC and its upgrades (D. Schulte, F. Zimmermann, CERN) 

- Bunch length restrictions at LHC by longitudinal coupled bunch instabilities (E. Vogel, CERN)

- Review of LHC heat loads and upgraded cryogenic system (L. Tavian, CERN)

- Generation and Benefits of Long Super-Bunches (H. Damerau, CERN)
- First induction acceleration of a proton bunch in a circular ring (K. Torikai, K. Takayama, KEK)

Related posters:

- Possible application of HTS in high field LHC magnets (R. Gupta, P. Wanderer, BNL)

Related posters:

- A simplified model of intrabeam scattering (K. Bane, SLAC) 

- Coupling Impedance Study of the SPS Cold-to-Warm Transitions (B. Spataro, D. Alesini, M. Migliorati, A. Mostacci, L. Palumbo, INFN Frascat & U. Rome "La Sapienza")
- Coherent beam-beam modes in the LHC for multiple bunches, different collision schemes and machine symmetries (T. Pieloni, CERN & U. Lausanne) 

- Wake fields in a circular pipe with finite conductivity and thickness: exact solution and asymptotics (L. Capetta, T. Demma, S. Petracca, U. Sannio & INFN) 

- Feasibility of directly computing wakes of lossy collimators (W. Bruns)

Related posters:
- H- source developments at CERN (C. Hill, D. Kuchler, R. Scrivens, T. Steiner, CERN)

Related posters:
- Code comparisons and benchmarking with different SEY models in electron cloud build-up simulations (G. Bellodi, RAL)
- Maps for electron clouds (U. Iriso and S. Peggs, BNL)
- Electron cloud instability simulations for the LHC (E. Benedetto, F. Zimmermann, CERN)
- PARSEC: parallel self-consistent 3D electron-cloud simulation in arbitrary external fields (A. Adelmann, PSI; M.A. Furman, LBNL)

- Space-charge simulation codes (A. Adelmann, PSI; R.D. Ryne, J. Qiang, LBNL)

THURSDAY 11 and FRIDAY 12 NOVEMBER: General meeting of the CARE-HHH Network

Assignments for each session (each chairman/convener will distribute these
somewhat provocative questions among the speakers/panelists of his session

and steer the discussion accordingly):

Session 1:  Is there a coherent European strategy for High Energy
            High Intensity Hadron Beams?
            What is the ideal beam structure for machine/experiments?
            Shorter bunches vs super-bunches.
            Old and new injectors: do we need them?

Session 2:  What will ultimately limit the LHC performance?
            What will limit the performance of the GSI complex?
            Collimation, electron clouds, space charge:
            are we going to hit a brick-wall?

Session 3:  Machine-Detector Interface: minimum l* and beta*?
            Do we need Nb3Sn technology for the LHC IR magnets?
            Do we need beam screens in the IR magnets?
            Pros and cons of large crossing angles.
            Shorter bunches vs super-bunches.
            Do Crab cavities work for hadron machines?

Session 4:  Where do we stand with code comparisons and benchmarking?

            Compile (or review) a table of codes for easy and

            systematic comparison of their features.
            Ideas to estimate/reduce/control numeric noise.
            Ideas to compute/reduce/control machine coupling impedances.
            What will ultimately limit the LHC beam intensity?
            Collimator and kicker impedance.
            Impedance of getter coatings and Crab cavities.

Session 5:  Road map for fast cycling injectors at CERN and GSI.
            Are proton drivers and/or FFAGs a cost effective solution for
            High Energy High Intensity High Brightness beams?
            Merits of SPL and fast cycling synchrotrons for an LHC upgrade.
            Prospects for higher beam brightness: can we make use of it?

Session 6:  Where do we stand with code comparisons and benchmarking?

            Compile (or review) a table of codes for easy and

            systematic comparison of their features.
            Ideas to estimate/reduce/control numeric noise.
            What will ultimately limit the LHC beam intensity?
            Instabilities for superbunches?

Session 7:  Overview of workshop sessions and panel discussions.
            Follow-up of new ideas/conclusions/priorities and of their
            implementation within the CARE-HHH Network.

Local organizing committee:
F. Ruggiero, W. Scandale, F. Zimmermann,
P. Hagen, C. Bosteels, and J. Thomashausen

Please contact Conf-HHH-2004@cern.ch if you have questions

Last modified on 05/24/2005 12:53  by