Work-packages for 2011-2016, planning and status
R. Corsini, 13thCLIC/CTF3 Collaboration BoardThursday 19 May 2011
R. Corsini, 13thCLIC/CTF3 Collaboration BoardThursday 19 May 2011
Status at the last Collaboration Board (February 2011):
• First top-down resource evaluation (see next slides)
• First work-package list available (http://indico.cern.ch/getFile.py/access?contribId=9&resId=0&materialId=0&confId=117583)
R. Corsini, 13thCLIC/CTF3 Collaboration BoardThursday 19 May 2011
Status at the last Collaboration Board (February 2011, from Steinar’s slides):
Activity Description Deliverables (2016) Total material budget
Cost studies, Civil engineering, Proj, Implementation
Update and improve CLIC cost model & civil engineering studies
• Technical Design (TD) and Project Implementation Plan (PIP) of CLIC Zero• Improved cost model, feedback to CLIC baseline review 4 MCHF
Beam physics studies Beam physics and overall design • Review of the CLIC baseline design • Stability and alignment, timing and phasing, stray fields and dynamic vacuum• Studies towards CLIC Zero
3 MCHF
CTF3 + CTF3 consolidation and upgrade • Consolidation and upgrade (higher energy, stability, reliability)• Drive beam phase feed-forward experiments• Upgrade and operate TBL as 12 GHz power production facility• Operation with beam of a long string of CLIC two-beam modules
43 MCHF
CLIC Zero Injector for the CLIC drive beam generation complex • Build and commission 30 MeV Drive Beam injector with nominal CLIC parameters• Build and commission a few Drive Beam accelerator nominal modules• Participation to Technical Design of full CLIC Zero facility
42 MCHF(~ 30 MCHF)
RF Structures design and fabrication of 12 GHz accelerating structures & PETSand associated R&D
• Build and test about 120 accelerating structures• Build and test about 10 PETS prototype• Establish quality control, brazing and assembly procedures for structure fabrication at
CERN• Precision machining center at CERN
29 MCHF
RF test infrastructure Building, commissioning and operation of high-power RF test stands
• Four 12 GHz klystron-based RF high-power test stations, for about 8 slots, running before 2016
• Continue high-power testing at 11.4 GHz (KEK and SLAC)• Contribution to high-power testing in CTF3+ (TBL)
13 MCHF
Prototypes of critical components Technical R&D – design, build and test prototypes of CLIC critical components
• R&D and prototypes of two-beam modules alignment and stabilization systems• Prototype of final focus quadrupole and stabilization system• Several nominal CLIC two-beam modules, mechanically tested, possibly beam tested• R&D and prototyping of critical beam instrumentation• Design and studies of machine protection system• DR superconducting wiggler prototypes, test with beam, extraction kickers prototypes• Dynamic vacuum assessment• Contribution to the CLIC Zero• DB RF system and powering
40 MCHF++
“Resource – drivers”
Very preliminary
R. Corsini, 13thCLIC/CTF3 Collaboration BoardThursday 19 May 2011
• Ramp-up to about 30 MCHF/year in 2013• Total integrated 2012-2016 150 MCHF
Assuming planned CERN contribution (MTP 2010 – about 90 MCHF) need from collaborators 60 MCHF
Material contributions from outside CERN should rise from 20-25% (present level) up to more than 1/3
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
2010 2011 2012 2013 2014 2015 2016
M C
HF
Year
Material budget 2010 - 2016
Total material budget -estimate
CERN MTP 2010
Status at the last Collaboration Board (February 2011, from Steinar’s slides) – Material Budget:
R. Corsini, 13thCLIC/CTF3 Collaboration BoardThursday 19 May 2011
0
20
40
60
80
100
120
140
160
180
200
2010 2011 2012 2013 2014 2015 2016FT
E
Year
Manpower 2010 - 2016
Total manpower - estimate
CERN MTP 2010
CERN MTP 2010 - corrected for fellows, project associates and students
Ramp-up from about 110 to 170 FTE
Planned CERN contribution (MTP 2010) slightly decreasing!
However, in the MTP after 2011/2012 most of non-staff manpower is not accounted for
Taking this into account, the CERN manpower is substantially flat (however, a fraction of this will have to be provided by a material-to-personnel transfer)
need from collaborators up to ~ 60 additional FTEs
Status at the last Collaboration Board (February 2011, from Steinar’s slides) – Material Budget:
R. Corsini, 13thCLIC/CTF3 Collaboration BoardThursday 19 May 2011
Status at the last Collaboration Board (February 2011):
• First top-down resource evaluation (see next slides)
• First work-package list available (http://indico.cern.ch/getFile.py/access?contribId=9&resId=0&materialId=0&confId=117583)
Since then:
• Discussions at 6 (out of 9) CLIC Accelerator Steering Committes
• One-day CASC retreat (March 4th)
• UK-CERN collaboration start-up meeting
But also new CERN MTP 2011
R. Corsini, 13thCLIC/CTF3 Collaboration BoardThursday 19 May 2011
0
5
10
15
20
25
30
35
2012 2013 2014 2015 2016
2010 M
2010 P
2010 T
2011 M
2011 P
2011 T
CERN MTP 2011
• Some increase in Personnel budget• Material budget generally decreased by 7.3% due to a negative material indexation
R. Corsini, 13thCLIC/CTF3 Collaboration BoardThursday 19 May 2011
Present Status:
• Work-program organized in WPs covering from hardware (very straight-forward WPs) to working-groups (attempt to also describe as WPs)
• Description of work-packages in some detail done (see next slides)
• Including material and manpower profile over 2012-2016
• Mainly top-down, but some input from CERN groups and collaborators in some areas
• Some cuts in material budget already implemented…
WP: CTF3-002Drive Beam phase feed-forward and feedbacks
Purpose/Objectives/Goals: Understand sources of drive beam phase jitter, develop and test feed-forward system to stabilize drive beam phase (performance, risk)
Deliverables Schedule
Drive Beam phase monitors Understand sources of drive beam phase jitter. Used in feedbacks and feed-forward test.
Drive Beam phase monitor prototype, phase monitor small series (2-3), electronics and acquisition. M budget: 0.5 MCHF
Monitor proto: 2011 – 4QMonitor series: 2013 – 2Q
Feed-forward kickers Required to demonstrate feed-forward performance. Two strip-line kickers. M budget: 0.75 MCHF 2012 – 4Q
Feed-forward pulsersRequired to demonstrate feed-forward performance. Fast amplifiers for the two kickers. Fast
electronics. M budget: 1.25 MCHF2013 – 4Q ?
Infrastructure and operation Required for testing. Cabling, infrastructure, controls, operational support. M budget: 0.5 MCHF
Distributed 2012-2016
Link to other WPs/activities: This WP depends on WP CTF3-001
Lead collaborator(s): INFN/LNF, Oxford Un./J. Addams, CERN: BE/RF, BE/BI, BE/ABP, BE/OP…
Resources: 2011 2012 2013 2014 2015 2016 Total Material (kCHF): 500 900 1100 300 200 3000
Personnel (FTE): 4 4 4 4 4 20
Resources comment: total and repartition to be reviewed with INFN-Frascati & Oxford. Likely delay of material resources
CTF3
Other comments: First review with Oxford at UK kick-off. Problem with schedule – agreed on strategy (first stage at reduced performance, possibly with commmercial ampli (commercial 25 kW ampli 800 k$), compromise on power/bandwidth.
CLIC 0WP: CLIC0-001Drive Beam Front-End
Purpose/Objectives/Goals: Assess CLIC drive beam injector/front-end performance, provide focus for development and industrialization of CLIC large series components (1 GHz MDKs and accelerating structures), constitute first building block of CLIC 0 (risk, cost)
Deliverables Schedule
Design & preparation Overall optimization of CLIC injector, study of implementation Detailed design of facility, implementation plan
2012 – 4Q
Gun Provide gun Thermionic electron gun, HV deck and front-end controlsM budget: 1 MCHF
2013 – 4Q
RF structures Provide structures for bunching system and acceleration. Three 500 MHz wide-band sub-harmonic bunchers, one single-cell pre-buncher, one travelling wave buncher, 6 accelerating structuresM budget: 1.7 MCHF
SHBs: 2014 – 2QPB, buncher: 2014 – 4QStructures: 2015 – 4Q
RF high-power system Provide RF high-power system 500 MHz sources (TWTs?), Four15 MW 1 GHz Modulators-Klystrons, waveguide networks, operational supportM budget: 16 MCHF
TWTs: 2014 – 2Q
2 MKS proto: 2014 – 4QMKS series: 6 2015 – 4Q6 in 2016 – 4Q
RF low-power system Provide RF low-power system low-power systems , 500 MHz and 1 GHz, operational supportM budget: 1 MCHF
Protos: 2014- 2QSeries: 2015 – 4Q
Magnets Provide magnets Solenoids, quadrupoles (about 12), four bending magnets, H-V dipole correctorsM budget: 2 MCHF
Solenoids/corr.: 2013 – 4QQuadrupoles: 2015 – 4QBends: 2015 – 4Q
Vacuum Provide vacuum system Vacuum chambers, pumps, gauges, control system, operational supportM budget: 2 MCHF
Distributed 2013 – 2016
CLIC 0
Other comments: Modulator/Klystrons are on the critical path. Lower efficiency prototypes (direct scaling from ILC/X-FEL?) could arrive earlier, allowing to keep the schedule. Discussion with RF group needed. Option: delay program. First stage with minimum number of 1 GHz klystron prototypes (4), short pulse + compression. Full upgrade in 2017-2018 (GAIN 13 MCHF)
WP: CLIC0-001Drive Beam Front-Endcontinued
Purpose/Objectives/Goals: Assess CLIC drive beam injector performance, provide focus for development and industrialization of CLIC large series components (1 GHz MDKs and accelerating structures), constitute first building block of CLIC 0 (risk, cost)
Deliverables Schedule
Diagnostics Provide diagnostics BPMs - electrostatic (~4), BPMs - magnetic (~ 5) - transverse profile monitors (3), time resolved energy spectrum measurement, operational support. M budget: 1.3 MCHF
BPM e: 2013 – 4Q BPM m: 2014 – 4Q Monitors: 2013 – 2015 Spectro: 2014 – 4Q
Controls Provide controls Injector control system, operational support. M budget: 1 MCHF
Distributed 2013 – 2016
Civil Engineering & infrastructure
Provide building and infrastructure Shielded hall, Cooling and ventilation, electrical equipment, cabling. M budget: 4 MCHF
2013 – 4Q Cabling Distr. 2013 – 2016
Commissioning & operation
Provide commissioning and operation Distributed 2012-2016
Link to other WPs/activities: This WP is linked to WP CTC-004
Lead collaborator(s): CERN: BE/RF, BE/BI, BE/ABP, BE/OP
Resources: 2011 2012 2013 2014 2015 2016 Total Material (kCHF): 1000 (500) 4000 (3000) 8000 (4250) 9000 (4250) 8000 (5000) 30000 (17000)
Personnel (FTE): 10 10 20 20 20 80
Resources comment: technical manpower partly shared with CTF3
Gun SHB 1-2-3
PB Buncher Acc. Structures
Quads
Magnetic chicane, diag. & collimation
TWTs, 500 MHz
Modulator-klystrons, 1 GHz
Quads
~ 140 keV ~ 6 MeV ~ 30 MeV
500 3000 4250 4250 5000
200
Spending profile for integrated beam systems tests
CTF3+/CLIC 0R. Corsini, CASC
6 May 2011
0
2
4
6
8
10
12
14
16
2009 2010 2011 2012 2013 2014 2015 2016 2017
MCH
F
year
Beam Facilities - Material
Material - reviewed
Material - initial
2010 2011 2012 2013 2014 2015 2016
4.2 4.2 7.15 9.95 10.15 9.35 8.94.2 4.2 9.7 12.8 12.3 13.5 11.7
WP: CTC-004 Purpose/Objectives/Goals Deliverables Schedule
Task 1: Prototype design and fabrication
Engineering design of the two-beam modules, including eng. design of fully integrated components. Fabrication and assembly of componentsGirder R&D, integration of all module technologies
4 two-beam modules to be mechanically tested in a lab (generation 1)3 two-beam modules to be mechanically tested in a lab (one future generation, second in 2017-2018 )3 two-beam modules to be tested with RF and beam in CLEX (generation 1)2 two-beam modules to be tested with RF and beam in CLEX (future generation)
2011-2016
Task 2: Finite element simulations Thermo-mechanical simulation of two-beam module behavior under different load conditions: estimation of resulting forces, deformations and stresses.Application of results to engineering design
Technical report with results of simulations; feedback to taks 1
2011 - 2016
Task 3: Experimental comparison of predicted and modeled performance
Experimental tests of technical system performance (vacuum, cooling, alignment,..) Experimental of overall module behavior under different load conditionsComparison measured with expected resultsReview of results and application to the engineering design
Realization of testsAnalysis of results
2011-2016
CTC-004 two-beam module development CLIC Linkperson: G. Riddone
WP: CTC-004 Purpose/Objectives/Goals Deliverables Schedule
Task 4: Alternative designs - Study of alternative module layout- Longer girders, common DB-MB girders, different materials - Longer RF structures- Permanent DB magnets- Mini-pumps replacing vacuum reservoir
New engineering design for the different options
2012-2016
Task 5: Industrialization Towards cost optimization:- reduction of interconnections- reduction of components and module types Reduction of machining and assembly steps
New module layout
New procedures
2013-2016
http://indico.cern.ch/categoryDisplay.py?categId=1794
Lead collaborator(s): CERN (G. Riddone) , collaborators (HIP-K. Osterberg, NTUA-E. Gazis, CIEMAT-F. Toral, NCP-A.Nawaz,
Resources: 2011 2012 2013 2014 2015 2016 Total
Material (kCHF): 1000 2000 2250 2250 2250 2250 11000
M>P (kchF) 570 600 600 600 600 600 3000
P<M (FTE) 8 10 10 10 10 10 50
Personnel (FTE): 12 15 15 16 14 14 86
CTC-004 two-beam module development
Other comments: total modules considered for construction: 13-16 (see task 1);All deliverables for modules (Alignment, Stabilization, BI, vacuum, RF structures etc) paid by TBA module budget.
WP: RF-xprod Purpose/Objectives/Goals Deliverables Schedule
Task 1: Construction of baseline accelerating structures
Test structures for statistical and long term high-power testing with all damping features and high power couplers (for SATS and Test modules in CLEX) we have to make sure that we count all the structures. including those for the CLEX modules
3 generations of test structures, total quantity 48, total cost ~6 MCHF.
12 in 201324 in 201512 in 2016
Task 2: Supply of small series development prototypes and/or medium power test structures
Test structures for full features (4), wakefield monitor equipped (4), optimized high-power design (8), different machine energy optima (4), optimized process (8), develop DDS (2) and choke (2), compressor (2)
Typically 12 variants in series of 4 structures each, total quantity 40, total cost ~6 MCHF.
8 structures per year
Task 3: Supply baseline PETS (note: most PETS fabrication accounted elsewhere, e.g. TBL)
PETS for statistical and long term high-power testing 4 PETS, total cost 0.2 MCHF. 3 in 20131 in 2015
Task 4: PETS for ON/OFF testing PETS for on/ off test 2 generations 0.1 MCHF
Task 5: Alternative fabrication method
Explore alternative fabrication methods Structure fabricated with alternative procedure
2012-2016
Task 5: Baseline to pre-series development
Take the fully tested x band rf Systems and evolve their production techniques to an industrialized process
2015 onwards
Resources: 2011 2012 2013 2014 2015 2016 Total
M (kCHF) 3000 3000 3100 3300 34000 15800
M>P (kCHF) 500 500 600 700 700 3000
P<M (FTE) 6 6 8 9 9 30
Fellows (FTE) 0 0 0 0 0 0
CERN Personnel (FTE):
2 2 2 2 2 10
X-band Rf structure Production
WP: RF-xtesting Purpose/Objectives/Goals Deliverables Schedule
High power testing of x band structures
-Establish in collaboration with designers and producers a test-schedule for the facilities at CERN, KEK and SLAC- Organize manpower for the tests-define consolidation and repair needs- lead the data analysis of the tests- suggest changes to designs and/or fabrication
-Structure Tests-Analysis of results
2012-2016
Link to other WPs/activities:
Lead collaborator(s):
Resources: 2011 2012 2013 2014 2015 2016 Total
M (kCHF) 150 200 250 250 250 250 1200
M>P (kCHF) 150 200 250 250 250 250 1200
P<M (FTE) 3 4 5 5 5 5 24
Fellows (FTE) 3 3 3 4 4 4 18
CERN Personnel (FTE):
1 1 1 2 2 2 8
Resources comment:
X-band Rf structure High Power Testing
WP: RF-Testfac Purpose/Objectives/Goals Deliverables Schedule
Task 1: High-power test stands 6 new klystron-based test stations with approximately 140 MW peak power each.
6 test stands. Cost of 0.5 MCHF per modulator, 1 MCHF per 50 MW klystron, 0.5 MCHF infrastructure. Total cost 12 MCHF plus operation.
2 in 20132 in 20142 in 2015
Task 2: Medium power, high rep rate test stand
2 test stands with 4x80 MW 100 Hz slots based on four 5 MW klystrons.
2 test stands. Cost of 0.25 MCHF per modulator, 0.1 MCHF per 5 MW klystron, 0.25 MCHF infrastructure. Total cost 1.8 MCHF.
1 in 20131 in 2014
Task 3: Test stand operation Operation of high power test facility at CERN: Provide high uptime, schedule maintenance and repair periods. Link to other test facilities.
Maintenance of installation, crews for maintenance
2012-2016
Link to other WPs/activities:
Lead collaborator(s):
Resources: 2011 2012 2013 2014 2015 2016 Total
M (kCHF) 3000 3200 2900 4900 2000 16000
M>P (kCHF) 100 200 500 500 100 1400
P<M (FTE) 2 3 7 7 2 21
Fellows (FTE) 0 0 0 0 0 0
CERN Personnel (FTE):
1 1 1 1 1 1 5
Resources comment: Rf engineer to lead work package is critical missing post
Creation and Operation of x-band High power Testing Facilities
BPH-ML Purpose/Objectives/Goals Deliverables Schedule
Optics Objective: Provide optimised main beam line and drive beam decelerator design for cost reduction/performance improvementActivities: Adjust lattice design to different gradients/energiesOptimise the focal strength for best performance/cost
Improved optics, report 2011-2016
Correction techniques Study impact of hardware implementation details on beam-based alignment performanceUpdate the feedback design
report 2011-2016
Update the feedback design Feedback layout, report 2011-2016
Performance studies Improve the main linac modelling (e.g. multi-pole wakefields, multi-bunch wakefields, shape distortions,…)
Improved PLACET code 2011-2016
Two-Beam Acceleration
BPH-ML Purpose/Objectives/Goals Deliverables Schedule
Resources: 2011 2012 2013 2014 2015 2016 Total Material (kCHF):
Personnel (FTE): 3 (0.4) 4 (0.4) 4 (0.4) 4 (0.4) 4 (0.4) 4 (0.4) 23 (2.4)
Resources need to be reviewed
Two-Beam Acceleration (cont.)
BPH-LUMI Purpose/Objectives/Goals Deliverables Schedule
Determination of feedback layout
Objective: Provide a consistent feedback design across the areasDescription: Integrate area feedback systems into one coherent set of feedback systems
Baseline feedback layout 2011-2016
Controller design Develop, adjust and optimise controller for performance, cost and risk
Code, report 2011-2016
System identification Provide error estimate for controller system model
Report 2011-2016
Mechanical stability Develop mechanical model and feedback on hardware development
Code, report 2011-2016
Magnetic stray fields Objective: Develop a concept to mitigate the impact of static and dynamic magnetic fieldsDescription: Participate to the determination of the level of fieldsDetermine the impact of the fields on the beam performanceDefine further work depending on the outcome of the above studies
Code, report 2011-2016
Integrated Dynamic Studies
BPH-LUMI Purpose/Objectives/Goals Deliverables Schedule Phase and amplitude stability Objective: Develop an integrated concept to
mitigate drive and main beam phase and amplitude errorsDescription: Determine the impact of hardware on beam phase and amplitude stabilityIn collaboration with hardware experts identify critical hardware and required R&DIdentify and follow relevant beam testsDesign feedback and feed-forward systemsOptimise beam line design for stability
Report on concept of stabilisationReport evidencing that the beam performance can be met with this system
2011-2016
Operation, commissioning and reliability
Objective: Develop the commissioning scenario
Develop a model of the operation
Address key reliability issues
Report on the commissioning scenario
Report on the operation
Report on reliability
2011-2016
CERN: BE-ABP, TE-MPE, EN-MEF, SYMME, Needs some increase
Resources: 2011 2012 2013 2014 2015 2016 Total Material (kCHF):
Personnel (FTE): 6 (1.5) 6 (1.5) 6 (1.5) 6 (1.5) 6 (1.5) 6 (1.5) 36 (9)
SYMME resources depend on outcome of bid
Integrated Dynamic Studies (cont)
200
Global – Material, reviewed
Total integrated: 140 MCHFIn CERN MTP: 86 MCHFNeeded from Collaboration: 64 MCHF over 5 years
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
2009 2010 2011 2012 2013 2014 2015 2016 2017
MCH
F
years
Material reviewed
total M
MTP 2011
"MTP 2011 + 50%"
R. Corsini, 13thCLIC/CTF3 Collaboration BoardThursday 19 May 2011
200
Global – manpower (preliminary)
Under review
0
50
100
150
200
250
2009 2010 2011 2012 2013 2014 2015 2016 2017
FTE
Year
Manpower
Total manpower
CERN MTP 2011
Ramp-up from about 110 to over 200 FTE
Planned CERN contribution (MTP 2010) slightly decreasing, however, in the MTP after 2011/2012 most of non-staff manpower is not accounted for
Taking this into account, the CERN manpower is substantially flat (however, a fraction of this will have to be provided by a material-to-personnel transfer)
need from collaborators up to ~ 100 additional FTEs
R. Corsini, 13thCLIC/CTF3 Collaboration BoardThursday 19 May 2011
R. Corsini, 13thCLIC/CTF3 Collaboration BoardThursday 19 May 2011
Material [MCHF] Personnel [FTE year]
General CLIC-001 CLIC General 6 33
Beam Physics BPH-BASE Integrated Baseline Design 4.3 229BPH-LUMI Integrated Dynamic Studies BPH-BCKG BackgroundBPH-POL PolarizationBPH-SRC E Main beam source, e-BPH-SRC P Main beam source, e+BPH-DR Damping RingsBPH-RTML Ring-To-Main-LinacBPH-ML Main Linac - Two-Beam AccelerationBPH-BDS Deam Delivery SystemBPH-DRV Drive Beam Complex
Beam & System Tests CTF3-001 CTF3 Consolidation & Upgrades 45.5 269CTF3-002 Drive Beam phase feed-forward and feedbacksCTF3-003 TBL+, X-band high power RF production & structure testingCTF3-004 Two-Beam module string, test with beamCLIC0-001 CLIC 0 drive-beam front end facilityCLIC0-002 CLIC 0 drive beam front end, photoinjector optionBTS-001 Accelerator Beam System Tests (ATF, Damping Rings, FACET,…)BTS-002 Sources Beam System Tests
Technical Systems CTC-001 DR SC Wiggler 43.4 326CTC-002 Survey & AlignmentCTC-003 Quad StabilityCTC-004 Two-Beam module developmentCTC-005 Warm Magnet PrototypesCTC-006 Beam InstrumentationCTC-007 Machine-Detector Interface (MDI) activitiesCTC-008 Beam Disposal (post-collision line & dumps)CTC-009 Machine Protection, OperationCTC-010 Civil Engineering & ServicesCTC-011 ControlsCTC-012 RF Systems (1 GHz klystrons & DB cavities, DR RF)CTC-013 Powering (Modulators, magnet converters)CTC-014 Vacuum SystemsCTC-015 Magnetic stray Fields MeasurementsCTC-016 DR Exctraction System
RF RF-DESIGN X-band Rf structure Design 40.0 211RF-XPROD X-band Rf structure ProductionRF-XTESTING X-band Rf structure High Power TestingRF-XTESTFAC Creation and Operation of x-band High power Testing FacilitiesRF-R&D Basic High Gradient R&D & OutreachXTBA-FAC Creation of an “In-House” TBA Production FacilityRF-MISC Miscellaneous RF
Total 139.1 1068
Summary table
• Full info:(https://indico.cern.ch/getFile.py/access?contribId=10&resId=0&materialId=slides&confId=134291)
R. Corsini, 13thCLIC/CTF3 Collaboration BoardThursday 19 May 2011
Summary table
200
Manpower profile for integrated beam systems tests
CTF3+/CLIC 0R. Corsini, CASC
6 May 2011
CERN staff & fellows about constant, some increase in M to P
Ratio PCERN / PColl goes from 3 to 2
0
10
20
30
40
50
60
2009 2010 2011 2012 2013 2014 2015 2016 2017
FTE
year
Beam Facilities - Manpower
Total CERN (staff, fellows, students & FSUs)
Total including collaborators