Vol. 2 (2015): Proceedings of the Chamonix 2014 Workshop on LHC Performance

Edited by M. Draper

CERN-2015-002, CERN–ATS–2015–002, ISBN 978–92–9083–413–7, ISSN 0007–8328

DOI: https://doi.org/10.5170/CERN-2015-002

Published: 2016-02-02

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Chamonix 2014 conclusions: main points and actions

F. Bordry, F. Zimmermann

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Summary of session 1: LS1, HW commissioning, powering tests - coming out of LS1

M. Pojer, L. Ponce

7
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Summary of session 2: Injector status and beams for LHC, dry runs, sector tests with beam

R. Steerenberg, R. Alemany

10
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Summary of session 3: 2015 commissioning with beam

M. Lamont, G. Papotti

13
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Summary of Session 4: LHC - Challenges and Strategy for Run 2

B. Salvachua, M. Zerlauth

16
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Chamonix Workshop, Session 5 – Liu – Summary

M. Meddahi, G. Rumolo

21
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Summary Of Session 6: HL-LHC

O.S. Brüning, P. Ferracin

27
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Summary Of Session 7: Accelerators And Non-LHC Experiment Areas Consolidation Up To LS3

M. Benedikt, F. Sonnemann

31
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Summary Of Session 8: Long Shutdown 2 Strategy And Preparation

J.M. Jimenez, J-Ph Tock

33
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Solved and Remaining non-conformities In the Superconducting Circuits

A. Verweij

39
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Re-commissioning of the Superconducting Circuits

M. Solfaroli Camillocci, J. Pojer

44
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Other Non-solved NC Across The LHC Ring and Potential Impact on Performances

V. Baglin

47
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Expected Impact of Hardware Changes on Impedance and Beam Induced Heating During Run 2

B. Salvant, et al.

53
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RF And ADT after LS1

A. Butterworth, P. Baudrenghien, D. Valuch

60
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LBDS and Kickers after LS1

W. Bartmann, et al.

65
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LHC Injector Complex Status

K. Hanke, et al.

71
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SPS Scrubbing Run in 2014

H. Bartosik, G. Iadarola, G. Rumolo

76
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Operational Beams for the LHC

Y. Papaphilippou, H. Bartosik, G. Rumolo, D. Manglunki

80
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LHC Dry-runs and Machine Check-out

D. Jacquet, M. Albert, R. Fernandez, R. Giachino, M. Solfaroli Camillocci

85
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LHC Transfer Lines and Sector Tests in LHC

V. Kain, R. Alemany

89
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2015 Commissioning with Beam - Introduction

M. Lamont

93
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Experiments Expectations

B. Gorini, E. Meschi

96
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Baseline LHC Machine Parameters and Configuration for the 2015 Proton Run

R. Bruce, et al.

100
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Optics Options for the 2015 LHC Run

M. Giovannozzi

107
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Nominal Cycle and Options

M. Solfaroli Camillocci, M. Lamont, J. Wenninger

111
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Scrubbing: Expectations and Strategy, Long Range Perspective

G. Iadarola, G. Rumolo

114
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Strategy for the first two Months of LHC Beam Commissioning (Commissioning to First Stable Beams)

S. Redaelli, et al.

125
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Overall Strategy for Run 2

J. Wenninger

129
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Machine Protection Strategy for LHC Commissioning and Outlook for Future Challenges

B. Salvachua

134
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Machine Development Priorities

J. Uythoven, G. Arduini, R. Tomas, G. Papotti

138
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BLM Threshold Strategy (UFOs and Quenches)

B. Auchmann, et al.

143
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R2E and Availability

M. Brugger

149
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Linac4: Progress on Hardware and Beam Commissioning

A.M. Lombardi

161
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Protons: Baseline and Alternatives, Studies Plan

G. Rumolo, et al.

166
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Concerns with Low Emittance Beam Operation

V. Kain, et al.

176
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Other Means to Increase the SPS 25 ns Performance – Transverse Plane

H. Bartosik, et al.

180
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Other Means to Increase the SPS 25 ns Performance - Longitudinal Plane

T. Argyropoulos

185
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Ions: Baseline, Studies Plan and Strategy for Pending Options

M. Bodendorfer

192
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HL-LHC Parameter and Lay-out Baseline

P. Fessia, M. Zerlauth

198
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HL-LHC Magnets Roadmap

E. Todesco, F. Savary

202
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HL-LHC RF Roadmap

R. Calaga

209
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HL-LHC Alternative Scenarios

R. Tomas, et al.

217
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Collimation Upgrades for HL-LHC

S. Redaelli, et al.

225
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Down Selection Criteria and MDs Prior to LS3

G. Arduini

232
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Accelerators and non LHC Experiment Areas Consolidation up to LS3 - Linacs

R. Scrivens

239
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PSB and PS Consolidation for LS2 and Beyond

S. Gilardoni, et al.

243
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SPS Consolidation for LS2 and Beyond

J. Ridewood

249
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AD and LEIR Consolidation

T. Eriksson, et al.

257
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North Area and East Area Consolidation

I. Efthymiopoulos, et al.

261
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ISOLDE and n_TOF Consolidation

R. Catherall

265
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Scope of the Long Shutdown 2 (Optimisation of the Period 2015-2018)

J.M. Jimenez

270
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What Has Been Learned from LS1

K. Foraz, J. Coupard, M. Bernardini

272
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Radiation Protection Aspects

D. Forkel-Wirth, et al.

276
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LIU Planned Activities

E. Chapochnikova, et al.

281
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HL-LHC Planned Activities During LS2 - Accelerator

I. Bejar Alonso

284
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LHC Experiments Upgrade and Maintenance

W. Riegler

288
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Long Shutdown 2 @ LHC

M. Bernardini, K. Foraz

290
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