Working Group 3

LC02 Working Group 3

Linac and Beam Delivery Dynamics and Control

Beam Optics, Dynamics, and Tuning

Instrumentation, Control, and Feedback

Conveners: R. Assmann (CERN), K. Kubo (KEK), O. Napoly (CEA Saclay), P. Tenenbaum (SLAC)

Goals: Working Group 3 will discuss progress in the design of linacs and beam delivery systems which meet the stringent requirements of linear colliders, in understanding the obstacles to high-luminosity performance at a proposed LC, and in the techniques and technology which is required to address these obstacles. Particular areas of interest include: progress and innovation on beam instrumentation for LC's; tuning algorithms and their fundamental limitations; sources and cures of time- varying instabilities; and general strategies for managing commissioning, startup, and operational interruptions.

LC02 WG3 Schedule Version 3 (31-jan-2002)

Monday 1330-1530 – Codes and Simulations

Speaker	Title	Time
N. Walker	Recent Results From MERLIN	20+10
D. Schulte (tbc)	PLACET	20+10
P. Tenenbaum	New Developments in LIAR	20+10

Tuesday 0900-1230 – Joint Session with WG2 S4 on RF Structure Design and Wakefields

Speaker	Title	Time
O. Napoly	Higher Order Modes Measurements with Beam at the TTF Linac	20+10
J. Guo	Short-range Transverse Wakefield Measurement in SLAC Linac & Verification on LIAR	20+10
R. Jones	Wakefield Suppression in New XBand High Phase Advance Structures	25+5
	Break 30	30
Z. Li	Structure Design for the JLC/NLC	25+5
H. Braun	Recent Developments in CLIC Accelerating Structures	25+5
N. Baboi	Wire Method to Measure the Impedance of Dipole Modes in NLC Structures	25+5

Tuesday 1330-1600 – Joint Session with WG1 on Tuning, BBA, And Feedback

Speaker	Title	Time
M. Woodley	Beam-based alignment at the ATF	15+5
A. Wolski	Estimates of Alignment Tolerances in the NLC Main Damping Rings	15+5
C. Spencer	NLC Prototype Quadrupoles, Electromagnet & Permanent : Centerline Stabilities	20+10
G. White	Feedback On Nano-second Timescales: IP Feedback Simulatioins	20+10
D. Schulte	The Drive Beam Decelerator
P. Tenenbaum	X-Band Linear Collider (JLC/NLC): Luminosity Issues	15+10

Wednesday 0900-1030 – Emittance Preservation

Speaker	Title	Time
V. Tsakanov	Single-Bunch Emittance Preservation in the TESLA Main Linac	15 +5
V. Tsakanov	Particle Transverse Autophasing Solutions in Long Linaa Accelerators	15+5
D. Schulte	Beam Stability in the Main Linac of CLIC	20+5
D. Schulte	Pinch Effect	20+5

Wednesday 1100-1230 – Vibration and Stabilization

Speaker	Title	Time
A. Seryi	Ground Motion Overview and Data	20+10
R. Assmann	Status & Plans for the CLIC Stability Study	20+10
J. Frisch	IP Stabilization for the NLC	20+10

Wednesday 1330-1455 – Joint session with WG1 on Instrumentation

Speaker	Title	Time
H. Braun	Recent Development in CLIC Accelerating Structures	20+10
S. Smith	Cavity Beam Positron Monitors for the NLC	20+10
Y. Honda	Laser Wire R&D at ATF	15+10

Wednesday 1455-1545 – CTF3 Drive Beam Dynamics

Speaker	Title	Time
A. Ghigo	CTF3 Compressor Rings: Impedance Issues Prototyping	20+5
C. Biscari	Single Particle Dynamics in CTF3 Frequency Multiplication System	20+5

Wednesday 1545-1600 – Prepare for “Critical Issues” Discussion

Thursday 0900-1240 – Joint session with WG4 on BDS, Collimation, and Backgrounds

Speaker	Title	Time
F. Zimmermann	CLIC Beam Delivery System (FF and Collimation)	20+10
P. Raimondi	NLC Beam Delivery System & Collimation	20+10
N. Walker	The TESLA (TDR) Beam Delivery System	20+10
	Break	30
D. Onoprienko	Measurement of Transverse Wakefield of Tapered Collimators	20+5
G. Blair	BDS Simulation using GEANT4	20+5
F. Zimmermann	Failure Modes in CLIC	20+5
T. Maruyama	Backgrounds in the NLC BDS	20+5

Thursday 1330-1600 – Preparation of Summary Talk

Contact lc02@slac.stanford.edu

Last Update: 04/08/02 07:21:34 AM

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