ILC-Americas Workshop

WG 4

Goals and Tentative Program

Version: posted 10/7/2004 12:18 PM, revised 10/16/2004 5:14 AM

 

Philosophy

            The meeting is organizational in nature.  We want to be ready to go to the KEK ILC kickoff with a

• Configuration alternatives been discussed
• List of critical choices
• Prioritized task list
• Understanding and commitment of personnel, financial and laboratory resources

 

that has had input from the broadest community in the Americas possible.  WG members should be prepared to participate in discussions and to give short (10minute) talks about there areas of expertise.  Talks should assume that the audience is well-versed in background materials and should be directed to the deliverables listed above.  We would like to leave as much time for discussion as possible while giving all who like an opportunity to present their work and points of view.  We have penciled in what we thought people might want to talk about.  Please feel free to communicate with Andrei, Tom and Nikolai as soon as possible with suggestions and corrections.

 

Goals

 

• Discuss suggested strawman BDIR model
• Woodley’s decks
• Basis for comparison for CDR studies

 

• Discuss suggested critical CDR choices
• Crossing Angle-(IR1/IR2)
• Final Doublet Technology (IR1/IR2)
• L* (IR1/IR2)
• Detector VXD inner radius (IR1/IR2)
• Collimation Choices (both Irs)
• MPS Questions
• Beam Stabilization issues
• Detector Questions
• Instrumentation Choices
• Risk Mitigation

 

• Discuss impact of options
• Gamma-gamma
• e-e-
• e+ polarized
• above 1 TeV running
• consequence of 35 mrad on e+e- luminosity
• consequence of simultaneous running of both IRs

 

• Discuss tasks to make CDR choices
• Studies (“fast”)                                     - prioritization
• Prototypes (“moderate”, M/S) - prioritization
• Beam tests (“slow”, M/S)                     - prioritization

 

• Sign-up, volunteering for tasks

 

• Agree on  and bring to plenary summary talk
• Strawman BDIR model
• Critical choices
• Prioritized task list
• Volunteers

Tentative choices and work task list

 

A unified list of design choices, tasks, resources, ongoing and committed work is being put together by Tom Markiewicz, based on the lists of European, Asian and American colleagues. The list will show, for example, which studies or experimental tests are needed to make a particular design choice. A preliminary version of the list is available as an Excel file; we hope to soon provide a web-interface to search, group and input information. Remembering that what is currently posted is known to be incomplete and was constructed primarily to see with what categories work best to capture the problem, please send suggestions and comments to Tom.  An improved and completed list is one of the things we would want to bring to the ILC Workshop at KEK.

 

 

Tentative program
	Thursday (pm)
Introduction
Organizational discussion	All	15:30-15:45
Configuration alternatives and critical CDR choices	Andrei Seryi	15:45-16:30
Regional work lists and unified work list	Tom Markiewicz	16:30-16:40
Options impact
How seriously should we consider the options	Harry Weerts, Jim Brau	16:40-17:00
Gamma-gamma implications	Jeff Gronberg	17:00-17:20
Discussion	All	17:20-18:00
Input talks (moderated sessions)	Friday (all day)
(input talks are ~10min + ~10min discussion)
Crossing angles, L*, QD0, RVXD
QD0 technology	Masayuki Kumada	9:00-9:20
QD0 technology, DID corrector	BrettParker	9:20-9:40
IP collision optimization
Fast feedback	Glen White	9:40-10:00
SC FD quad, and in cryo linac quad stability	Ping He	10:00-10:20
Collimation/background/MPS
Radiation Effects and Background in BDIR	Nikolai Mokhov	10:20-10:40
COFFEE BREAK		10:45-11:15
Collimation Performance	Sasha Drozhdin	11:20-11:40
Number of bunches to withstand	Lew Keller	11:40-12:00
Optics
SC tail folding octupoles and extraction line magnets	Brett Parker	13:00-13:20
Solenoid compensation with 35mrad	Yuri Nosochkov	13:20-13:40
Solenoid SR in 35mrad	Andrei Seryi	13:40-14:00
Beam tests & Risk mitigation
What beam tests are critical?	Mike Woods	14:00-14:20
Optics tests?	Andrei Seryi	14:20-14:40
Beam Instrumentation
E.spectrometer (what if Espec < IP fails)	Eric Torrence	14:40-15:00
COFFEE BREAK		15:00-15:20
Polarimetry	Ken Moffeit	15:20-15:40
Coherent beamstrahlung monitor	Giovanni Bonvacini	15:40-16:00
Pairs monitor	Glen White	16:00-16:20
Special magnets for IR	Brett Parker	16:20-16-40
Sign-up, discussion
Discussion of models, choices, tasks, volunteers, needed workshops	All	16:00-17:00