The following seven working groups and one general parallel session with a focus on code benchmarking will be set up at the workshop:

A. Beam instabilities and their cures
Conveners: A. Burov (FNAL), F. Zimmerman (CERN)
B. Space-charge theory, simulations, and experiments
Conveners: S. Cousineau (ORNL), I. Hofmann (GSI)
C. Beam diagnostics, collimation, injection / extraction, and targetry
Conveners: N. Mokhov (FNAL), M. Tomizawa (KEK), K. Wittenburg (DESY)
D. Beam cooling and intra-beam scattering
Conveners: A. Fedotov (BNL), I. Meshkov (Dubna), J. Wei (BNL)
E. High intensity linacs / Proton drivers
Conveners: R. Galoby (CERN), B. Weng (BNL)
F. FFAG and other advanced accelerators and techniques
Conveners: W. Chou (FNAL), S. Koscielniak (TRIUMF), Y. Mori (Kyoto U.)
G. Commissioning strategies and procedures
Conveners: K. Hasegawa (JAEA), S. Henderson (ORNL), R. Schmidt (CERN)
General Parellel Session A+B+D with a focus on code benchmarking
Conveners: I. Hofmann (GSI), E. Shaposhnikova (CERN), F. Zimmerman (CERN)


The identification of the working groups and the selection of the conveners have been made by the International Advisory Committee and the Program Committee.

Woking group agendas for some of the working groups are listed below. Working group agendas for remaining working groups will appear on this web site shortly.


Working Group D agendas

I. First, we will discuss the outcome of the studies for the tasks identified by the HB2004 working group on e-cooling and IBS. Specifically, we will discuss the following questions:

1. Can we satisfactory reproduce measurements of IBS with theory?
2. What was learned about IBS diffusion with echo measurements?
3. What was the progress in description of IBS for distributions deviating from Gaussian as a result of e-cooling?
4. What is the progress in experimental benchmarking of such distributions under cooling?
5. What was learned about available models from direct numerical study of the non-magnetized cooling force?
6. What was learned about available models from direct numerical study of the magnetized cooling force?
7. Summarize outcome of recent measurements of the magnetized friction force and comparison with theory.
8. Summarize outcome of recent measurements of the non-magnetized friction force and comparison with theory.
9. Experimental observation of the work of stochastic and electron cooling simultaneously.

II. Second, we will discuss recent experimental results for intense beam in e-coolers.
1. We will discuss new finding and observation
2. We will discuss intensity limits and instabilities.

III. Third, we will discuss new subjects/effects - to be identified during the meeting.

IV. Finally, we will summarize what type of experiments are still needed for comparison with theoretical models. We also identify the tasks for future studies.


Working Group F agendas

Longitudinal Dynamics
We have super bunches, barrier buckets, slip-stacking, bunch rotation, bunch dilution, bunch splitting, bunch combination, hollow bunches, etc.
What are the limitations to these methods, technical and/or fundamental?
Is there anything missing from the toolkit of longitudinal manipulations?
Are there new applications for existing methods?
Possible applications of induction RF technology?

Scaling FFAGs
"Press Release: An FFAG synchrotron accelerates protons to 100MeV at a repetition rate of 100Hz", May 1, 2006, (KEK)
Evidently, radial-sector type FFAGs have come of age.
What technological advances are needed to establish the spiral sector type machines?
Are new cavity designs required?

Nonscaling FFAGs
There are dsigns well-developed for fast acceleration of muons and electrons using copious amouts of high-gradient rf. What are the prospects for slow acceleration of hadrons for medical or proton driver applications?

Laser technology for hadron machines
Laser ionization and acceleration of protons and other light ions hold the promise for high-brightness, high intensity particle sources.
How is this technology to be wedded to the front-end components of conventional accelerators? For example, are there emittance matching problems to be solved.

Superconducting Technology
o What are the key issues to reduce AC losses in pulsed SC magnets?
o What are the prospects/advantages of employing SC spoke cavities for proton (or H-) acceleration over more conventional elliptical cavity designs?

Advanced Accelerator Technology R&D
List of advanced accelerator technology R&D and the associated institutions. This would be a useful outcome from Session F.

This range of six topics is too much to cover in a 2-hour session. We shall take a poll of session-F members at the meeting to select a subset for discussion. However, session-F attendees should come prepared to contribute a list of their own laboratories advanced R&D to the final topic listed above.



Working Group G agendas

- Increasing complexity of accelerators: how does the commissioning time increase with complexity?

- Commissioning of protection system: do we need detailed procedures?
How formal does one need to be in defining the procedures?
How formal in defining the path of MPS commissioning?
How to document the results of MPS commissioning?

- What are the largest risks during commissioning?

- Administrative limits during beam commissioning: How are limits arranged and adjusted to leave flexibility early on, but sufficiently robust to protect equipment?

- How to use BLMS and how to optimise their thresholds?

- Disabling interlocks - is this required to operate an accelerator?

- Reliability and availability studies - do we believe the results?

- Accelerator Modelling during commissioning - how, what tools?

- Preparation for commissioning: What constitutes a sufficient set of system tests prior to beam commissioning? Often such testing is "squeezed" out of the schedule, and one is left to diagnose systems using the beam.

- Beam Diagnostics: Which systems are most important for initial commissioning?
How does one "guarantee" working diagnostic systems on day one?

- Critical parameters in the controls system - how to deal with them? (Interlock levels, voltages of kickers, collimator positions etc.)
How is access to these settings managed? How do people manage their 'critical settings'?

- What is the best way to organize personnel (accelerator physicists) for beam commissioning? Every lab has a scheme, which one seems to work best?


If you have any comments or questions on this workshop, please send an e-mail to hb2006@kek.jp.