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Vancouver Linear Collider Workshop/GDE Meeting
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UBC, Vancouver, Canada
UBC, Vancouver, Canada
Description
On behalf of the ALCPG and GDE, the Local Organizing Committee of the Vancouver Linear Collider Workshop, invites you to the July 2006 joint meeting of the American Linear Collider Physics Group and the International Linear Collider Global Design Effort - organized by TRIUMF. It will be held on the Campus of the University of British Columbia in Vancouver, Canada from Wednesday, July 19th to Saturday, July 22nd.
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Convener: Jean-Michel Poutissou (TRIUMF)
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08:40
Speaker: Joseph Lykken (Fermi National Accelerator Laboratory)
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10:30
break 30m
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12:30
Convener: Jean-Michel Poutissou (TRIUMF)
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11:15
Speaker: Ken Peach (Oxford University)
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12:00
Speaker: Judy Jackson (Fermilab Office of Public Affairs)
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Lunch 1h
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15:30
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13:30
Speaker: Wolfgang Lohmann (DESY, Zeuthen)
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Speaker: William Morse (BNL)
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Speakers: Eric Torrence (Oregon), Ken Moffeit (SLAC)
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Speakers: Eric Torrence (Oregon), Takashi Maruyama (SLAC)
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An introduction to the tracking sessions at this ALCPG meeting will be presented.Speaker: Bruce Schumm
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13:40
An overview of the existing tracking software will be given and examples of its use will be demonstrated.Speaker: Norman Graf (SLAC)
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13:55
I am going to compare different track fitting algorithms and investigate factors limiting resolution of different track parameters in different areas of phase space (low Pt - high Pt, central-forward). Currently I have only 2 track fitting algorithms available in org.lcsim - simple circle fitter and weight matrix based (SLD-like) algorithm. I hope that Kalman filter based algorithm may be available before Vancouver and I will be able to make comparison with it also.Speaker: Nick Sinev
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14:10
We present tracking finding studies with the SODTracker package for the outer SiD tracker, and track fitting studies using Kalman filter fitters. Based on seed tracks found in the vertex tracker, the SODTracker uses an efficient propagation algorithm to find tracks in the outer detector. For optimal resolution tracks need to be fit with Kalman filter techniques, taking into account the presence of the material along the particle trajectories. We describe the status of the development of these packages, as well as results from performance studies.Speaker: Dr Fred Blanc (University of Colorado)
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14:25
One of the approaches to track finding in SiD is to identify track seeds in the silicon pixel vertex detector and then associate hits with the seeds in the silicon strip outer tracker. This talk describes tracking code developed in the org.lcsim framework that constructs track seeds from 3D hit measurements and verifies the presence of a track using the other layers of the tracker. Partiuclar attention has been played to making the algorithm sufficiently flexible to allow the study of design alternatives for SiD.Speaker: Richard Partridge (Off-White University)
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14:40
I will discuss results, progress, and open questions regarding the use of Tim Nelson's axial tracking algorithm to "clean up" the tracking by finding tracks that begin outside the reach of the vertex detector.Speaker: Bruce Schumm
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14:55
The result of a TPC software meeting at DESY in June is being presented. Detailed common software standards were agreed upon in order to facilitate the exchange of code and data. A MarlinTPC package will be written into a central software repository at DESY.Speaker: Christian Hansen (University of Victoria)
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15:10
A package of vertex tools for use within exisiting ILC software frameworks is under development by the LCFI Collaboration. I will describe the features that this package will provide, and its current status.Speaker: Joel Goldstein (RAL)
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I will discuss some of the design requirements for ILC vertexing and present the current status and future plans for the software.Speaker: Norman Graf (SLAC)
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Convener: Nan Phinney (SLAC)
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Speaker: Nobu Toge (KEK)
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Speaker: John Tompkins (FNAL)
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Speaker: Norihito Ohuchi (KEK)
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Speaker: Timothy Barklow (SLAC)
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Speaker: Ed Berger (ANL)
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break 30m
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Speaker: Dhiman Chakraborty (Northern Illinois University)
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Speaker: Randy Ruchti (University of Notre Dame and NSF)
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Convener: Bob Kephart (FNAL)
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Speaker: Thomas Markiewicz (SLAC)
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Speaker: Prof. Georges Azuelos (Universite de Montreal/TRIUMF)
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Speaker: Prof. Steve Godfrey (Carleton University)
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Speaker: Dr Aurelio Juste (Fermilab)
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Reception 2h Sage
Sage
UBC, Vancouver, Canada
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An overview of the status and goals of the ALCPG simulation and reconstruction software will be given.Speaker: Norman Graf (SLAC)
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The status and future plans for the Geant4-based full detector simulation package, slic, will be presented.Speaker: Jeremy Mccormick (Unknown)
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An overview of the Cluster Analysis Package will be given, with examples of its use in comparing various existing cluster finding algorithms.Speaker: Ron Cassell
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Overview update of ILC detector test beam activitiesSpeaker: Jae Yu (University of Texas at Arlington)
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US-Based muon groups' activities and plansSpeaker: Bob Abrams (Indiana University)
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08:55
CALICE collaboration's current beam test activities and its plansSpeaker: Andy White (University of Texas at Arlington)
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US based calorimeter groups' beam test activities and their plansSpeaker: Jose Repond (Argonne National Laboratory)
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Current Fermilab beam test facility, its availability and plansSpeaker: Erik Ramberg (Fermi National Accelerator Laboratory)
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The SiD concept achieves the performance goals for tracking at the ILC with a novel, all-silicon tracker. This design relies upon new techniques in readout electronics and sensor design that must be successfully prototyped as a proof-of-principle. The current design will be described in detail and the status of efforts to prototype and test the critical components will be discussed.Speaker: Tim Nelson (SLAC)
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08:55
Recent progress in tracker alignment R&D at Michigan will be reported. Dual-laser frequency scanning interferometery (FSI) has proven to work well in reducing systematic uncertainties due to temperature fluctuations which limit single-laser FSI measurements under realistic detector conditions. Results of several recent tests carried out to cross-check the precision of the dual-laser method will be presented. Exploratory work to miniaturize the FSI optical components will also be discussed.Speaker: Keith Riles (University of Michigan)
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09:20
We will report on progress in the development of the readout of silicon strips with power-cycled long shaping-time readout at SCIPP.Speaker: Bruce Schumm (UC Santa Cruz)
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Convener: Nobu Toge (KEK)
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Speaker: Sven Heinemeyer (Univ. de Zaragoza)
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Speaker: HongSheng Hou (Carleton U.)
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break 30m
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After reviewing the Si-W ECal, optimized for SiD, we will give recent results on silicon detector results from the lab and on test of the first fully-designed integrated readout chip (KPiX). We will present our near-term plans.Speaker: Marty Breidenbach (SLAC)
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10:55
The Multi-Pixel Photon Counter (MPPC) is a novel type photon sensor which has great performances feasible for the GLD calorimeter readout. In this talk we present current status and results of the MPPC performance study from a standpoint of the practical use at the GLD calorimeter. Satoru UozumiSpeaker: Satoru Uozumi (University of Tsukuba, Japan)
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We are planning beam tests of ECAL(W/Sci) prototype using the Multi-Pixel Photon Counter(MPPC) readout system. This talk is about outline of the plan and also contains a status report of the R&D for optimal scintillator strip structure. Saori Itoh Shinshu university, (GLD-CAL)Speaker: Saori Itoh
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11:45
Development of a Scintillator-Tungsten Electromagnetic Calorimeter with Silicon Photomultipliers¶ 25mWe are investigating the feasibility of a scintillator-tungsten electromagnetic calorimeter. We use silicon photomultipliers in our calorimeter module to detect light in scintillator tiles guided by wavelength-shifting fibers. We observe sensitivity to single visible photons in the photomultipliers, and can discriminate photons on a time scale of under 10 ns. We are currently studying the response of our module to cosmic ray muons, as well as the performance of the wavelength-shifting fibers. Joseph ProulxSpeaker: Joseph Proulx (University of Colorado at Boulder)
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We give details of the software being developed at UVic for the study of the effets of a non-homogenous magnetic field on TPC tracking.Speaker: Jason Abernathy (University of Victoria)
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The Micro Pattern Gas Detector (MPGD) readout TPC, proposed for the International Linear Collider (ILC), will have to measure 200 track points with a transverse resolution close to 100 microns. It will be difficult to meet the resolution goal with conventional MPGD readout techniques if 2 mm x 6 mm pads were used as was initially envisioned. Reducing the pad width to improve resolution could add significantly to the detector cost and complexity. The new MPGD readout concept of charge dispersion has been shown to achieve excellent resolution without resorting to narrower pads in cosmic ray TPC tests without a magnetic field. We have recently tested two small prototype MPGD-TPCs with charge dispersion readout in a 1 T superconducting magnet in a test beam at KEK. Transverse resolution close to 50 microns was achieved with 2 mm wide pads at 1 T for short drift distances. The dependence of resolution on drift distance was as expected from diffusion. With larger suppression of transverse diffusion at higher magnetic fields, the resolution goal of 100 microns appears feasible for the ILC TPC. The present status of charge dispersion MPGD-TPC resolution studies will be presented.Speaker: Madhu Dixit (Carleton University)
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The Cornell/Purdue prototype TPC, first commissioned in December 2004, has an active area of 10cm square and a drift length of 64cm. The present readout includes 56 channels of 14 bit, 105 MHz, flash-ADCs. Revised readout pad boards, installed in March 2006, include a combination of 5mm and 2mm pads. Recent studies of various gas-amplification devices will be discussed. These include Purdue-3M Micromegas, the Saclay produced bulk Micromegas, and GEMs.Speaker: Dan Peterson (Cornell University)
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Latest developments in the application of silicon pixel readout for a TPC will be discussed.Speaker: Jan Timmermans (NIKHEF)
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11:50
A Time Projection Chamber is being investigated as central tracker for the detector at the ILC. To provide a comparison and explore the potential improvements using Micro-Pattern Gas Detectors, Gas Electron Multipliers (GEM) and Micromegas (MM), compared with Multi-Wire Proportional Chambers, which have used up to now in TPCs, several small prototype chambers (diameter ca. 30cm) have been built and tested. The next step in this development will be the construction and test of a Large Prototype (diameter ca. 90 cm) with GEM and MM endplates at the EUDET facility. A brief overview of the small-prototype work and the planning for the Large Prototype will be given.Speaker: Ron Settles (MPI Munich)
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Convener: Nick Walker (DESY)
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Speaker: Nikolay Solyak (FNAL)
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lunch 1h
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Convener: Mark Oreglia (U Chicago)
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Speaker: Maury Tigner (LEPP, Cornell University)
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RDR review, status and plans for next steps.
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Review of positron system design, start to end.
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break 30m
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18:00
Convener: Harry Weerts (ANL)
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RDR review, status and plans for next steps.
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Review of positron system design, start to end.
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Moderator: Alan Astbury / Panel members: Barry Barish,
Gerry Dugan, Brian Foster, Kaoru Yokoya, Jim Brau,
Francois Richard, Hitoshi Yamamoto, Chris Damerell,
Shin-ichi Kurokawa-
19:30
Moderator: Alan Astbury Panel members: Barry Barish, Gerry Dugan, Brian Foster, Kaoru Yokoya, Jim Brau, Francois Richard, Hitoshi Yamamoto, Chris Damerell
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To meet the requirements for precision jet energy measurements through the particle flow algorithm, the development of hadronic calorimeter technique with an unprecedented granularity is necessary. For this, UTA group has been working on developing a Digital Hadron Calorimeter using Gas Electron Multiplier (GEM) in the sensitive gap. The group has recently developed 30cmx30cm GEM foils together with 3M Inc. and have constructed a large prototype chamber with multiple readout channels. This chamber has been exposed to a high current, low energy electron beam in KAERI, Korea. We will report on these recent progress of larger GEM foil development and the preliminary result of the beam exposure data. Jae YuSpeaker: Jae Yu (UTA)
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08:50
We report on the progress made toward building a prototype section of a highly segmented hadron calorimeter for the ILC. The section includes 40 layers, each with the an area of 1 m^2, of Resistive Plate Chambers, interleaved with 20 mm steel plates as absorber. The section will undergo a detailed test program at the MTBF test beam at Fermilab, planned for 2008. This effort is considered an important part of the overall program of the CALICE collaboration. The main purpose of this project is a) to validate our technological approach to finely granulated hadron calorimetry using Resistive Plate Chambers, b) to validate our concept of the electronic readout system with a highly multiplexed front-end, c) to perform precision measurements of hadronic showers with unprecedented spatial resolution, d) to validate the Monte Carlo simulation of hadronic showers and e) to compare its performance with the performance of the scintillator-based tile calorimeter section currently being built by the CALICE collaboration. Jose' RepondSpeaker: Jose' Repond (Argonne National Laboratory)
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09:10
We report on our plans to design and build a prototype that will be fully scalable to a full dtector, and some preliminary results from first trials along those directions. Speaker: Dhiman Chakraborty, NIU/NICADDSpeaker: Dhiman Chakraborty (NIU)
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Abstract: The DREAM beam tests revealed that for electromagnetic showers, the energy resolution was limited by photoelectron statistics and the spatial resolution by the 7.2-cm channel size. Both problems are solved by a front-end calorimeter of 2x2x25 cm^3 PbWO4 crystals with dual readout of scintillation and Cerenkov light with SiPMs to preserve the excellent hadronic energy resolution. I will discuss bench tests done at TTU, the upcoming CERN test, and our plans for a cubic-meter module that incorporates all of our present ideas: dual-readout crystal calorimeter, triple-readout (scintillation, Cerenkov, MeV-neutrons) fiber calorimeter, including two methods for measuring the neutrons, and a possible slice test of TPC/prototype-dual-triple-muon/prototype in some kind of magnetic field. John HauptmanSpeaker: John Hauptman (Iowa State)
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10:15
we will have SKYPE and could call up to 4 people.
Please send your number that we can call. Sorry for
such arrangements.-
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Electron Cloud: Can we eliminate the second positron damping ring? (8:30-10:00am); Global R&D plan: beyond the RDR (10:30-12:30)
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Reports from and discussion with CF&S/Controls/Ops.Discussion wiht Magnet and Power Supplies and Cavities.
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Speaker: Dr Tim Barklow (SLAC)
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Speaker: Dr Gudrid MOORTGAT-PICK (CERN)
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Speaker: Dr Bob McElrath (University of California, Davis)
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break 30m
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I will report on our effort to develop a particle flow algorithm that can demonstrate the required jet energy resolution and be used to optimize ILC detector design. I will discuss the current status of the algorithms, performance with z-pole events, our future plan.Speaker: Dr Lei Xia (Argonne National Laboratory)
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We present some new results from a more complete PFA based on an improved Directed Tree Clustering algorithm.Speaker: Dhiman Chakraborty (Northern Illinois University)
- 11:00
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In this talk, we present a flexible analysis framework for reconstructing individual particles in LC detectors. We demonstrate its performance on a number of detector models with different choices of calorimeter absorber, active media and readout segmentation as well as overall detector parameters such as the strength of the B-field, magnet bore, aspect ratio, hermeticity, etc.Speaker: Dr Stephen Magill (Argonne National Laboratory)
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We have performed a number of reconstruction studies for an electromagnetic calorimeter with tungsten absorber and 5cm square scintillator tiles, offset by 2.5cm in alternating layers. The offset gives us nearly the same performance as a detector with 2.5cm square tiles. These studies use the SLIC/org.lcsim simulation and reconstruction framework. We have established good cluster-finding performance in 500GeV ZZ to 4-jet events, and have developed algorithms to distinguish single photons from merged pi^0 clusters at high energies, and to determine the direction of incident photons with high precision. We are investigating methods to study hadrons that interact in the EM calorimeter, and the effect of constraints on dynamic range in data acquisition on energy measurements for very high energy photons and electrons.Speaker: Joseph Proulx
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We implemented the new calorimetery geometry into GLD Full Simulator for Realistic PFA study. We will introduce about the new calorimeter geometry and performance test of current PFA.Speaker: Hiroaki Ono (Niigata University)
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There is a general consensus that the Particle Flow Algorithm (PFA) drives the overall ILC detector design. We studied the PFA for GLD detector using the GEANT4-based full simulator named Jupiter. In this talk, the general scheme and performance of the GLD-PFA are presented.Speaker: Tamaki Yoshioka (ICEPP, Univ. of Tokyo)
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10:30
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12:30
we will have SKYPE and could call up to 4 people.
Please send your number that we can call. Sorry for
such arrangements.-
10:30
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11:00
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11:30
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July 21st 13:30-14:30 BDS in GDE agenda D.A-K and A.S. meet with TS groups 13:30-14:15 Vacuum TS H.Y. meets RDR on detector R&D July 21st 14:30-15:30 BDS leaders + EC + WWS discuss IRs July 21st 16:00-18:00 Discuss general progress, R&D priorities, RDR writing, etc.
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10:30
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10:30
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12:30
Electron Cloud: Can we eliminate the second positron damping ring? (8:30-10:00am); Global R&D plan: beyond the RDR (10:30-12:30)
- 10:30 → 12:30
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10:30
→
12:30
Reports from and discussion with CF&S/Controls/Ops.Discussion wiht Magnet and Power Supplies and Cavities.
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Speaker: Jodi Cooley
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Speaker: Tom Shutt
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Speaker: Michael Ramsey-Musolf
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12:30
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Speaker: Dr Sven Heinemeyer (Universidad de Zaragoza)
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Speaker: Dr Thomas Becher (Fermilab)
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Speaker: Dr Sven Heinemeyer (Universidad de Zaragoza)
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Lunch 1h
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15:30
Convener: Patricia McBride (FNAL)
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Speaker: Marcela Carena (Fermilab)
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break 30m
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Convener: Jim Brau (U Oregon)
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Pre-banquet Reception 1h SUB Party Room & Courtyard
SUB Party Room & Courtyard
UBC, Vancouver, Canada
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22:00
Banquet 3h SUB ballroom
SUB ballroom
UBC, Vancouver, Canada
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Speaker: Erin De Pree (The College of William and Mary)
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Speaker: Filimon Gournaris (University College London)
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10:30
break 30m
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12:30
Convener: Steve Godfrey (Carleton University)
- 10:30
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12:30
Convener: Kwang-Je Kim (ANL)
- 10:30
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13:30
Lunch 1h
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15:30
Convener: Andy White (UTA)
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Convener: Dieter Proch (DESY)
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break 30m
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10:00
