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International Review of the Crab Cavity Performance for HiLumi
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Europe/Zurich
6/2-024 - BE Auditorium Meyrin (CERN)
Description
HL-LHC is in the final stage of design and prototyping: all technologies for the hardware upgrade must be proven by 2017. A key element of HL-LHC is the first use of Crab Cavities (CC) in a hadronic machine, to compensate the loss of Luminosity due to the crossing angle. An important milestone of the SRF Crab Cavity System is the preparation of a complete system for beam test, in 2018, in the SPS.
This review covers the technical design, the performance and readiness of the Crab Cavity System for the SPS and the HL-LHC. Previous reviews addressed the choice of cavity design and the designs of He vessels and cryoassemblies.
โThe review is scheduled on three days from Monday 3 April to Wednesday 5 April 2017. Following the close-out by the review chair on Wednesday afternoon, the committee is required to compile a short report with findings, comments and recommendations within one month. The report will be delivered to G. Apollinari, LARP Director, and to L. Rossi, HL-LHC Project Leader.
The members of the International Review Panel are: Dr. Akira Yamamoto (CERN & KEK, Chair), Dr. Mark Champion (ORNL), Dr. Mike Kelly (ANL), Dr. Robert Laxdal (TRIUMF), Dr. Guillaume Olry (IN2P3), Dr. Carlo Pagani (INFN), Dr. Waldemar Singer (DESY).
Leonardo Ristori & Alessandro Ratti (LARP) and Rama Calaga & Ofelia Capatina (CERN) are the link persons for this review.
Participants
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Closed session - Monday AM 6/2-024 - BE Auditorium Meyrin
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Crab Cavity project overview 6/2-024 - BE Auditorium Meyrin
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1
Overview of HL-LHC and Introduction of the reviewSpeaker: Lucio Rossi (CERN)
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2
CC inside LARP/AUPSpeaker: Giorgio Apollinari (Fermi National Accelerator Lab. (US))
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3
Overview of CC for the HL-LHC project (25'+5')Speaker: Rama Calaga (CERN)
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1
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09:40
Coffee break and photograph 6/2-024 - BE Auditorium Meyrin
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Crab Cavity project overview 6/2-024 - BE Auditorium Meyrin
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4
Evolution of CC in LARP (20'+5')Speaker: Alessandro Ratti (SLAC National Accelerator Laboratory (US))
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5
UK contribution to HL-LHC Crab Cavities and evolution (10'+5')Speaker: Graeme Burt (Lancaster University)
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6
CC engineering overview (20'+5')Speaker: Ofelia Capatina (CERN)
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7
WP4 QA, QC status and documentation (15'+5')Speaker: Isabel Bejar Alonso (CERN)
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8
Discussion
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4
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12:00
Lunch break
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SPS CC test preparation 6/2-024 - BE Auditorium Meyrin
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9
Cavity/HOM manufacturing at CERN (20'+5')Speaker: Marco Garlasche (CERN)
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10
LARP cavity results (20'+5')Speaker: Hye Kyoung Park
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12
SPS-DQW experience (cavity + HOMs) and evolution to LHC (15'+5')Speaker: Silvia Verdรบ Andrรฉs (Brookhaven National Laboratory BNL)
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13
SPS-RFD experience (cavity + HOMs) and evolution to LHC (15'+5')Speaker: Subashini De Silva (Old Dominion University (US))
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9
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15:25
Coffee break 6/2-024 - BE Auditorium Meyrin
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SPS CC test preparation 6/2-024 - BE Auditorium Meyrin
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14
Cryomodule & Cryostating Overview (20'+5')Speaker: Teddy Capelli (CERN)
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15
Frequency tuning system and p.o.p. tuning results (15'+5')Speaker: Kurt Artoos (CERN)
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16
FPC status and HPRF status + coupler mounting (FPC/HOM) (25'+5')Speaker: Eric Montesinos (CERN)
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17
CERN-DQW cavity string assembly preparation (15'+5')Speaker: Mathieu Therasse (CERN)
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14
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18:30
Welcome drink (all) Restaurant no. 2
Restaurant no. 2
CERN
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SPS CC test preparation 6/2-024 - BE Auditorium Meyrin
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18
Helium Vessel & Cavity Dressing Construction (20'+5')Speaker: Paula Freijedo Menendez (CERN)
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19
Thermal and magnetic shields (15'+5')Speaker: Niklas John Templeton (STFC Daresbury Laboratory (GB))
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20
SPS cryogenic proximity equipment and SM18 validation (15'+5')Speaker: Krzysztof Brodzinski (CERN)
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21
Alignment and monitoring (15'+5')Speaker: Mateusz Sosin (CERN)
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22
SM18 preparation for cryomudule testing (15'+5')Speaker: Alick Macpherson (CERN)
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18
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10:15
Coffee break 6/2-024 - BE Auditorium Meyrin
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LHC CC and production plan 6/2-024 - BE Auditorium Meyrin
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23
LHC CC integration constraints (15'+5')Speaker: Paolo Fessia (CERN)
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24
Pre-series, series strategy and planning (15'+5')Speaker: Ofelia Capatina (CERN)
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25
US contribution for 10 RFD dressed cavities (20'+5')Speaker: Leonardo Ristori (Fermilab)
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26
CERN procurement of DQW dressed cavity (20'+5')Speaker: Carlo Zanoni (CERN)
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27
UK pre-series with RFD cryomodule (20'+5')Speaker: Thomas Jones (STFC)
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23
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12:30
Lunch break and Visit of RF facility in SM18 (reviewers only)
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Facility and infrastructure for SPS test 6/2-024 - BE Auditorium Meyrin
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28
SPS Crab Cavity Test Stand: Safety review summary (15'+5')Speaker: Christelle Gaignant (CERN)
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29
LLRF preparation and RF commissioning for SPS (15'+5')Speaker: Philippe Baudrenghien (CERN)
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30
Vacuum considerations for SPS tests and LHC CC (15'+5')Speaker: Vincent Baglin (CERN)
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28
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15:00
Coffee break 6/2-024 - BE Auditorium Meyrin
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Facility and infrastructure for SPS test 6/2-024 - BE Auditorium Meyrin
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31
Cryogenic considerations for SPS and LHC (15'+5')Speaker: Serge Claudet (CERN)
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32
SPS Test Stand Integration (20'+5')Speaker: Giovanna Vandoni (CERN)
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33
SPS test success criteria, LHC performance aspects and machine protection (20'+5')Speaker: Oliver Bruning (CERN)
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31
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Closed session - Tuesday 6/R-012 - conference room
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08:30
Visit of Main Workshop (reviewers only) Bldg. 100
Bldg. 100
CERN
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34
Ad-hoc discussions with speakers when requested
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34
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12:30
Lunch break
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Close-out session 6/2-024 - BE Auditorium Meyrin
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35
Close-out sessionSpeakers: Prof. Akira Yamamoto (High Energy Accelerator Research Organization (JP)), Akira Yamamoto (High Energy Accelerator Research Organization (JP))
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35
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08:30
