Alessandro Variola

MAY 23rd 2007POSIPOL WELCOME

WELCOME

POSIPOL 2007 Goals

Alessandro VariolaMAY 23rd 2007Posipol Welcome

Alessandro Variola

MAY 23rd 2007POSIPOL WELCOME

Thank you for your participation

• 1) Posipol Program• 2) Some information• 3) Goal of the Workshop

Alessandro Variola

MAY 23rd 2007POSIPOL WELCOME

• And many thanks to the sponsors…….

Alessandro Variola

MAY 23rd 2007POSIPOL WELCOME

Program• Wednesday : Registration 9.00 - 9.30

Morning Session 9.45 – 12.30Afternoon Session 14.30 -17.30Coffee Breaks 11.00 – 11.30; 16.00 – 16.30Lunch 12.30 – 14.30

• Thursday : Morning Session 9.30 – 13.15Afternoon Session 14.30 – 16.30Coffee Break 11.30 – 12.00Lunch & Photos 13.15 – 14.30Social event: Visit and Dinner at the Orsay Museumstarting from 19.00

• Friday : Morning Session 9.30 – 12.30Afternoon Session 14.00 – 18.00Coffee Breaks 11.00 – 11.30; 15.00 – 15.30Lunch 12.30 -14.00

Alessandro Variola

MAY 23rd 2007POSIPOL WELCOME

• 1) Web Café – @ the “Science Museum” in front of the “salle bleue”• 2) Wi-fi is active in the Auditorium• 3) !!!! RER – Not all RER B trains from Paris stop in Orsay Ville. The

good ones are directed to Saint Remy les Chevreuse and their code start either by P or by L (like for example PLAN, PAPY, LADY…….)On the platform take a look at the panel lights corresponding to the stops.

• 4) All the trains leaving from Orsay Ville go to Paris• 5) Orsay Museum dinner: meeting at the museum at 19.00• 6) There will be a group leaving from LAL• 7) Lunch is foreseen at the BURES restaurant (have a look on the

map…)• 8) LAST MINUTE : TOMORROW => RESTAURANT STRIKE !!!!!!

We are trying to have an emergency “spare solution”…(Sandwiches…..)We are really sorry.

SPEAKERS (& Conveners): 10 min before your session check that your talk is loaded in the INDICO agenda.

Information

Alessandro Variola

MAY 23rd 2007POSIPOL WELCOME

For any problem:We have two kind assistants

CATHERINE ISABELLE

Alessandro Variola

MAY 23rd 2007POSIPOL WELCOME

Workshop Goals

• POSIPOL 2006:

• discuss options and open issues of polarized positron source, based on laser Compton back scattering, for CLIC and ILC.

• assess and coordinate the outstanding R&D efforts towards a complete Compton source design.

• compare the issues with the undulator source. • analyze the experimental programs carried out in the

different laboratories.• elaborate the baseline recommendation for CLIC.

Alessandro Variola

MAY 23rd 2007POSIPOL WELCOME

Workshop Goals

Main events since Posipol 2006:

1) CLIC parameters change2) ILC RDR published. Meetings in Daresbury and Bejing3) ILC next step = EDR4) E166 results5) GEANT4 polarized version

6) Compton sources: Fiber Laser Technology opens the way to high power, high repetition frequency lasers7) Daresbury meeting - ERL scheme as possible Compton Driver8) SuperB factory proposal (polarized positrons ?)9) Rising interest the use of low energy Compton sources for Medical-Industrial applications

Alessandro Variola

MAY 23rd 2007POSIPOL WELCOME

Workshop Goals

Progress in Compton related studies and experiments:

-Experimental results @ KEK and BNL (2 talks)-Fiber lasers (4 talks)-Re-circulation laser (1 talk)-2 Mirror cavity (2 talks)-4 Mirror cavity (1 talk)-Capture session ~ 2% @ ~42% polarization (3 talks), GEANT4 & EGS (1 talk)-Beam @ DR 1 mm mrad rms (1 talk)-Digital feedback for FP cavities (1 talk)-HERA fast polarimetry (1 talk)-Tech application: Lyncean Technology, other projects are starting (2 talks)

Alessandro Variola

MAY 23rd 2007POSIPOL WELCOME

1) Take stock of the situation of the different machines, schemes, studies and R&D’s.

2) Gather information on the new technologies (fiber laser, mirrors…). Define the possible associated R&D’s.

3) Find the overlap with the undulator solution, both for funding (EU FP7…) and common work.

4) Benchmark of the GEANT4 polarized version. 5) Review the industrial – medical applications of Compton machine (extremely

important for R&D fund request).

CLIC - Redefine the parameters. Analyze the differences from the earlier proposal and

have a first “feasibility” scheme.ILC- Converge towards a scheme that can produce a valid “alternative” design and

clearly assess what R&D’s are necessary to validate the scheme.- Point the way to EDR- Study the possibility of a demonstrator experiment- Define the aspects of the schemes that still need answering (stacking,

costing…) and make a work planSuperB - Introduce the new machine and address the case of polarized positrons.

Introduce the FP7 design study

Workshop Goals

Alessandro Variola

MAY 23rd 2007POSIPOL WELCOME

• ENJOY the workshop and……. PARIS

Workshop Goals