1. LIU-SPS, 15 April 2015 Paul Cruikshank1

2. In the beginning…. First slide that Brennan gave me – everything decided ! LIU-SPS, 15 April 2015 Paul Cruikshank2

3. Recall: Starting point: Extensive work already made by SPS-U and SPS-LIU teams J.Bauche, B.Goddard, V.Mertens, M.Taborelli, P. Costa-Pinto, P. Chiggiato …… Recent discussions with above, plus C.Bertone, P.Bestmann, J.Ferreira, J.Perez- Espinos, Experience of 16 MB and 5 Quad aC coated chambers in SPS – handling, performance, ageing, etc. General assumptions for activity: LS2 activity and 5 working days/week. 8 months aC duration ( 1m ramp-up + 6m cruise + 1m ramp down) Chamber is coated in the magnet Machine components returns to initial slot Consider arc and DS machine components only (for now): aC coat all 744 dipoles = 6 dipoles/working day aC coat all 192 quads = 1.5 quads/day (new scope) aC coat all 192 SSS = 1.5 SSS/day (new scope) LIU-SPS, 15 April 2015 Paul Cruikshank3

4. Scope today aC coating – Dipole (74% SPS ) Baseline update Variants aC coating – Quads & SSS (15 % SPS ) additional aC scope - without/with impedance reduction Doesn’t (yet) address aC for LSS components Doesn’t (yet) address other consolidation needs Doesn’t (yet) address impact on other LS2 activities LIU-SPS, 15 April 2015 Paul Cruikshank4 Cells% SPSChamber type X-section (mm) FormUnits /cell Chamber (mm) Chamber /cell % cell% SPS 84+12 Arc+DS 88.9 MBA152 x 36.5Rect466602664041.637.0 MBB129 x 48.5Rect466402656041.536.9 QF mag152 x 38.3Elipse13346 5.24.6 QD magDia 83Round13346 5.24.6 QF SSS152 x 36.5Ellipse12052 3.22.8 QD SSSDia 83Round12052 3.22.8 63995100.088.9

5. Radiation considerations Extensive SPS radiation campaign Feb 2013 for LS1: MB range0.1 - 100 uSv/hr @ 40 cm Quad & SSS range 1 - 1000 uSv/hr @ 40 cm Need to make detailed assessment for each MB, Quad, SSS to coat Dose ‘cost’ for each item to aC coat – list to compile Public road limitations < 5 uSv/hr – otherwise ‘transport containment’ required Avoid road transport LIU-SPS, 15 April 2015 Paul Cruikshank5 aC activity 1 hr, 1 MB aC activity 1 hr, 744 MB aC activity 1 hr, 192 Quad 1 uSv/hr @ 40 cm1 uSv744 uSv 10 mSv/hr @ 40 cm10 uSv1920 uSv Sextant 5 (best) Sextant 1 (worst)

6. Costs – the existing numbers Baseline: (J.Bauche 2009/2010) Consider 744 MB in ECX/EXA5 6 dipoles/day in 124 days 3957 kCHF APT: LIU e-cloud study Considers 744 MB and studies 4.590 kCHF (2015 - 2020) LIU-SPS, 15 April 2015 Paul Cruikshank6

7. aC factory options LIU-SPS, 15 April 2015 Paul Cruikshank7 BA2 lift BA3 lift BA6 lift BA4 crane BA5 crane Transit aC ex-situ factory ECX/ECA5 TCC6 Other ? aC in-situ factory aC ex-situ factory BHA5 Other ? aC ex-situ factory B867 via BA3 & road P1.8 via BA6 & road B?? via road Other ? 192 SSS 192 Quad 744 MB Tunnel transport Surface transport Underground activity Surface activity aC typical sequence: Disconnect (vac + mech) Transport Clean + aC coat Transport Survey (x,y,z,tilt) Reconnect (vac + mech Survey (smoothing) Baseline Adjacent quads can’t be simultaneously removed

8. Underground to surface: MB, Quad, SSS to surface: BA1 – nothing. BA2 – lift, requires mobile crane + crane driver for loading65k BA3 – lift, usual exit point, coactivity with cavity works BA4 – crane, requires opening ECX4 wall & extr.septum removal???k BA5 – crane, coactivity new dump, requires opening of ECX5 wall100k BA6 – lift, coactivity with P1 (LHC & ATLAS) ground logistics Handling team at (each) surface location130k Lorry driver(s) if aC factory is elsewhere65k Handling team at (each) aC factory130k BA3 exit gives access to Prevessin infrastructure BA6 exit gives access to P1.8 infrastructure BA2 exit would block 1 of the 2 CERN mobile cranes (plus road trans) Several exit points create flexibility (C.Bertone) Night shift will add 50% to manpower costs For cost estimate, consider 1 exit point MB, 1 exit point Quad & SSS Many constraints ! LIU-SPS, 15 April 2015 Paul Cruikshank8

9. Ex-situ v in-situ aC coating LIU-SPS, 15 April 2015 Paul Cruikshank9 Ex-situ benefits: Working environment Radiation constraints Access Combined consolidations In-situ benefits: Transport & logistics needs Building space needs Disconnection needs Realignment needs To avoid too many combinations in cost estimate consider: All Dipoles ex-situ or in-situ aC All Quadrupoles + SSS ex-situ aC only All Quadrupoles + SSS ex-situ aC only, with impedance reduction

10. Cost estimates and considerations: TE/VSC aC coating, MB ex-situ aC coating, MB in-situ Wet cleaning, MB ex-situ Plasma cleaning, MB ex-situ Plasma cleaning, MB in-situ Impedance reduction variants for Quad & SSS EN/SU – P.Bestmann MB ex-situ, MB re-alignment MB in-situ, Quad & SSS re-alignment EN/HE – C.Bertone Underground to surface MB transport & logistics Quad & SSS transport & logistics TE/MSC & DG/SCR From 2010 cost estimates LIU-SPS, 15 April 2015 Paul Cruikshank10

11. Cost for aC options: Preliminary totals to be checked by experts Excludes on-going TE/VSC works to validate: Long hollow cathode solutions eg 13 m Plasma cleaning as pre-treatment to aC coating Plasma cleaning with p.port shields not removed LIU-SPS, 15 April 2015 Paul Cruikshank11

12. aC cost estimate details and variants LIU-SPS, 15 April 2015 Paul Cruikshank12

13. aC coating – MB ex-situ (baseline) 3 day aC cycle, 6 MB/day = 18 MB in work pumping, coating, cathode cooling Coating in MB pairs = 9 coating stations (+1 reserve) 1 pumping group with gas inj, RGA, pc70 kCHF 2 cathode trains (6.6m) with 150 mm linear drive2 x 30 kCHF Total 10 stations1300 kCHF aC coating manpower (8 months) 4 FSU (coating - 2 x 2 teams)312 kCHF 1 FSU (sample measurements)78 kCHF Surface of 360 m2 (15 x 24 m) 10 Coating stations = 2 x MB length + footpath 2 transit stations Min spacing between MB = 1 metre LIU-SPS, 15 April 2015 Paul Cruikshank13

14. aC coating, MB in-situ 5 day aC cycle Insert cathode, pump, coat 1, coat 2, cathode cooling, demount Goal 6 MB/day or 30 MB/5 days MB string (4 x MB) together, so 7.5 strings/5 days Adjacent quads cannot be removed so working space is 2m Coating MB strings = 8 coating stations 2 pumping group with gas inj, RGA, pc2 x 70 kCHF 2 cathode trains (13.2m) with 150 mm linear drive2 x 50 kCHF Total 8 stations1920 kCHF aC coating manpower (8 months) 4 FSU (coating - 2 x 2 teams)312 kCHF 1 staff eng + 1 staff tech 1 FSU (sample measurements)78 kCHF Considerations No MB transport or alignment required. Requires removal of SSS and Quads Remove all SSS Remove alternate quads – coat MB – reinstall quad – realign quad – remove adjacent quad. Implies plasma cleaning LIU-SPS, 15 April 2015 Paul Cruikshank14

15. Wet cleaning – MB ex-situ (baseline) 0.5 d wet cleaning cycle, 6 MB/day = 3 MB in work create a table (acetone, detergent, rinse, dry) 3 cleaning stations (+ reserve) ~3 m3 demin rinsing water/MB Recirculating pumps, tanks, heaters, blowers100 kCHF Rinsing water tanks (30)10 kCHF Hand/foot contamination detector20 kCHF Dose rate monitors + balisette??40 kCHF Total 4 stations170 kCHF Cleaning manpower (8 months) 2 FSU (60 CHF/hr)156 kCHF Surface of 120 m2 (6 x 20m) 4 Cleaning stations = MB length + protection zone 4 transit stations Min spacing between MB = 1 metre Independent wet zone Considerations Remove/clean/reinstall RF shielding with wet cleaning156 kCHF Local system to cleaning, rinse, dry30 kCHF LIU-SPS, 15 April 2015 Paul Cruikshank15

16. Plasma cleaning – MB ex-situ Under vacuum cleaning O 2 injection and cold plasma discharge to remove hyrocarbons + System built to remove aC coating - As aC pre-treatment, to validate. + No pumping shield removal- With p.port shielding to validate + No waste water- No dust removal + No contamination transfer 0.5 d plasma cleaning cycle, 6 MB/day = 3 MB in work Sequence – insert anode train, pump, plasma clean, extract train. Plasma cleaning in MB pairs = 2 stations ( 1 reserve) 1 pumping group with gas inj, RGA, pc70 kCHF 2 anode trains (6.6m) 2 x 15 kCHF Total 2 stations200 kCHF Plasma cleaning manpower (8 months) 2 FSU (60 CHF/hr)156 kCHF Surface of 60 m2 (15 x 4m) Plasma cleaning station = 2 x MB length + footpath Min spacing between MB = 1 metre LIU-SPS, 15 April 2015 Paul Cruikshank16

17. Plasma cleaning – MB in-situ Under vacuum cleaning – O 2 injection and plasma discharge Consider 1 day plasma cleaning cycle for 4 MB string Goal 6 MB/day or 30 MB/week, so 7.5 cleaning cycles/week Plasma cleaning MB strings = need 2 stations 2 pumping groups with gas inj, RGA, pc2 x 70 kCHF 2 anode trains (13.2m)2 x 30 kCHF Total 2 stations400 kCHF Plasma cleaning manpower (8 months) 4 FSU (cleaning & tunnel logistics - 2 x 2 teams)312 kCHF Considerations: Requires removal of SSS and Quads (special sequence) Requires tunnel logistics Requires set-up (2 x SPS dipole) to validate in 2015 LIU-SPS, 15 April 2015 Paul Cruikshank17

18. MB underground transport + aC logistics (baseline) Underground transport to ECX5 4 hrs x 3 FSU per MB = ~ 800 CHF* x 744585 kCHF Remove-transport to ECX5-return transport-reinstall If over night activity add 50% coefficient292 kCHF Underground logistics in ECX5 & ECA5 for 8 months 2 FSU for cleaning & aC coating factory130 kCHF 50 m2 for transit handling (6 magnets) Additional handling infrastructure: 1 Dumont250 kCHF 1 Volk tractor80 kCHF 1 trailer30 kCHF Other handling tooling20 kCHF Total 380 kCHF Other underground aC options? TCC6 tunnel (demount 100m of TI2, TT60 for 170 m2 area) LIU-SPS, 15 April 2015 Paul Cruikshank18

19. Quad & SSS transport to surface Underground transport to lift (BA2, BA3, BA6) Sequence: Remove-transport to surface–return from surface–reinstall Manpower 585 kCHF for 744 dipoles, so….. For 372 Quad & SSS (really 384)292 kCHF 50% coefficient for night shift146 kCHF Surface logistics: Handling team per location130 kCHF Additional tunnel infra for SSS: 1 Pratt side-loader renovation70 kCHF 1 small trailer20 kCHF Additional tunnel infra for quad if MB are removed 1 Dumont (quad config)250 kCHF 1 Volk tractor80 kCHF 1 trailer30 kCHF If MB coated in-situ, no additional infrastructure0 kCHF LIU-SPS, 15 April 2015 Paul Cruikshank19

20. MB aC ex-situ – MB alignment Inputs & constraints: Consider MB must return to initial position Is this essential? – field quality, geometry, pumping port, other…. Tilt alignment before vacuum connections (on-line) Alignment in transport passage (need HE & SU decoupling!) SU request 0.5 d for 4 MB string (8 MB/day capacity) Manpower needs: 2 FSU for 8 months – MB & smoothing 156 kCHF Equipment needs: Laser tracker, small tooling30 kCHF LIU-SPS, 15 April 2015 Paul Cruikshank20

21. MB aC in-situ – Quad alignment Inputs & constraints: Returning quad aligned wrt to quad neighbours Tilt alignment before vacuum connections No SSS reinstallation until QF & QD realigned Alignment in trans passage (need HE & SU decoupling) 6 MB/day = 1.5 Quads/day & 1.5 SSS/day SU request 0.5 d for 2 quads & 0.5 d for 2 SSS Manpower needs: 2 FSU for 8 months – Quad, SSS & smoothing 156 kCHF Equipment needs: Laser tracker, small tooling30 kCHF LIU-SPS, 15 April 2015 Paul Cruikshank21

22. Impedance reduction during aC LIU-SPS, 15 April 2015 Paul Cruikshank22 Inputs from J.Perez-Espinos: 192 Quads, 192 SSS of arc & DS, Where applicable includes cutting/demounting/remounting/welding, All transport costs in aC estimate, Additional building surface needs for max and intermediate solutions to do, Max = 2896 kCHF, min = 0 kCHF

23. Summary Updated costs: aC variants - to be checked by experts Impedance variants (0 - 2893 kCHF) – to be checked by experts Next steps Radiation ‘cost’ per magnet TE/VSC Developments (long hollow cathode, plasma for aC, etc) Add LSS components to aC cost estimate Check compatibility of aC variants with other LS activities Find opportunity to make aC pilot run on significant zone of SPS (with fixed budget), to validate procedures & process, measure performance, gather knowledge for SPS deployment and other CERN needs. LIU-SPS, 15 April 2015 Paul Cruikshank23 Thanks for your attention !