Operations review 2008 and beam status in the

Operations review 2008 and beam status in the different machines ATOP days 6/3/2009 D. Manglunki with input from C. Carli, K. Cornelis, T. Dobers, I. Efthymiopoulos, M. Eriksson, T. Eriksson, L. Gatignon, K. Hanke, E. Jensen, E. Métral, B. Mikulec, E. Montesinos, R. Scrivens, E. Siesling, P. Skowronski, P. Sollander, R. Steerenberg, J. Wenninger, … ð Beam performance in 2008 ð Problems encountered ð Current status and readiness for 2009 beam production. 1

Operations review 2008 and beam status in the different machines Outline ð Electrons ð Isolde ð n. TOF ð East Area ð Pbar / pbar production ð SFT & CNGS ð LHC proton beams ð Ions for LHC ATOP days 2009 D. MANGLUNKI BE/OP 2

Operations review 2008 and beam status in the different machines Electrons ð Combiner ring recommissioned in 2008, up to 4 x recombined (no Delay Loop) ð Up to 12 A produced, sent to TL 2 ð RF produced in PETS ð Problems: ð Controls, water, radiation ð 2009: ð double intensity Delay Loop + Combiner Ring ð Finish commissioning probe beam ð see Piotr’s talk Friday 11: 50 ATOP days 2009 D. MANGLUNKI BE/OP 3

Operations review 2008 and beam status in the different machines ISOLDE ð Good performance in 2008 ð NORMHRS & NORMGPS 95% availability ð STAGISO 93% availability ð Up to 1 E 13/ring from PSB ð Machine protection issue ð ISOLDE beam occasionally sent to PS see Klaus’talk 5/3 9: 30 ð Main problem: vacuum ð Ageing controls ð Lack of support ð 2009 ð Integration of RFQ into HRS controls ð New tape station (in parallel with old one for calibration) ð New shielding from REX X-rays ð Radioactive air handling: see Richard’s talk 5/3 10: 35 ATOP days 2009 D. MANGLUNKI BE/OP 4

Operations review 2008 and beam status in the different machines n. TOF ð First run since 2004: 1 week in November 2008 for target commissioning ð OK in PSB & PS ð Ip > 7 E 12 (nominal) ð 96% beam availability ð New optics (defoc) for TT 2 A, showed evidence of misalignment ð Realignment in progress, ready for 2009 (1. 5 - 2 E 19 requested, see Vasilis’talk) [R. Steerenberg, T. Dobers, L. Gatignon] ATOP days 2009 D. MANGLUNKI BE/OP 5

Operations review 2008 and beam status in the different machines East Area ð 88% average beam availability in 2008 ð PR. W 8 L (200 h) ð also for most other beams (AD, SFT, CNGS ) ð SMH 57 & SMH 61 ð When supercycle too “heavy” ð In 2009 (in principle, no n. TOF in // ): ð EASTA -> North (T 9, T 10, T 11) ð EASTB -> South Dirac (T 8) ð EASTC -> South Irradiations (T 7) ð See new layout proposal in Lau’s talk 6/3 9: 00 ATOP days 2009 D. MANGLUNKI BE/OP 6

Operations review 2008 and beam status in the different machines Antiprotons ð Pbar beam availability 81% ð ASACUSA 77%, ATRAP 73%, ALPHA 86%, MLINE 96% ð Production beam availability 87% ð 1. 4 E 13 routinely extracted from PS towards AD ð Optimum AD cycle length = 80 s ð Long supercycles decrease apparent pbar production by lengthening AD cycle ð Could use more AD cycles in “main” of EASTx ð Pbar yield puzzle … see Tommy’s talk at 12: 00 ATOP days 2009 D. MANGLUNKI BE/OP 7

Operations review 2008 and beam status in the different machines SPS Fixed Target ð Overall availability 78% ð No high intensity required in 2008 ð Ip < 2 E 13 ð Idem in 2009 ATOP days 2009 D. MANGLUNKI BE/OP 8

Operations review 2008 and beam status in the different machines CNGS ð Restarted with new shielding in 2008 ð 1. 78 E 19 Protons on Target delivered (4. 5 E 19 requested) Beam availability 62% Intensity limited ~ 4 E 13 in SPS (in spite of PSB intensity record 3. 8 E 13) ð PS losses ð SPS-RF, see Erk’s talk 5/3 9: 45 ð June 27 th Incident reminded us of beam power (see Rende’s talk at 11: 30 and Jorg’s talk 5/3 9: 00) ð SPS Kickers MKE (26 h) ð Short lifetime of filters for Horn + reflector cooling ð See Ilias’talk 6/3 9: 30 ð 3. 1 E 19 requested in 2009 ATOP days 2009 D. MANGLUNKI BE/OP 9

Operations review 2008 and beam status in the different machines CNGS & SFT issues ð ST/EL 18 k. V ð 115 h on 25/7 ð 43 h on 30/7 ð 80 h on 13/9 ð ST/EL compensators 1 & 3 ð See Session 4, 5/3 14: 00 (Peter, Karsten, Davide) ð Total 22 h ð PE. W 8 L (200 h , cf EAST, AD …) ð SEH 31 & BFAs (should/will be solved by MTE) ð SPS Multiple RF transmitters trips (mainly TRX 3) ð Serious problem with spare tubes might jeopardize future CNGS operation or even high intensity LHC (Current spares have already been used, delivery delay ~9 months) ð MTE from PS tested ð Restart with CT in 2009, then switch to MTE, see Simone’s talk at 10: 10 ð Flexibility: full ppm needed, tested in 2008, being implemented in 2009 ð See Jorg’s talk 5/3 11: 35 ATOP days 2009 D. MANGLUNKI BE/OP 10

Operations review 2008 and beam status in the different machines LHC proton beam zoo I Nb exy Probe <5 E 9 1 1 mm Pilot <5 E 9 1 3 mm Indiv 1 E 11 1 3 mm 25 1 E 11 72 3 mm 50 1 E 11 36 3 mm 75 1 E 11 24 3 mm ATOP days 2009 D. MANGLUNKI BE/OP 11

Operations review 2008 and beam status in the different machines LHC proton beam zoo ð Global availability 88% (probe: 100% on 10/9) ð Probably the healthiest beam(s) due to pressure ð Extensive MD programme throughout the year ð Flexibility of injector chain ð production of all beams (50 ns revived) required in 2009 -10 ð within or close to specs (Ib, long emittance) ð sometimes transverse emittance even too low ð H/V emittance control in PSB and/or in SPS ð Single batch for 50 and 75 produced by PSB – 3 rings H=2, synchronized on H=1 – To be demonstrated in PS in 2009 ð ZS sparking in SPS ð Lots of fine adjustments in PS RF (many splittings …) ð Lack of PSB users for too many beam types ð Extensive use of archives ATOP days 2009 D. MANGLUNKI BE/OP 12

Operations review 2008 and beam status in the different machines LHC proton beam: Indiv + Pilot in the SPS [E. Métral] ATOP days 2009 D. MANGLUNKI BE/OP 13

Operations review 2008 and beam status in the different machines Ions for LHC [1] ð Source: new RF in 2008 (18 GHz vs 14. 5 GHz) ð 50% increases expected in the long term ð 2007 intensity (27 m. A) reproduced in 2008 ð Time needed to gain experience in new settings ð No ions in LEIR, PS or SPS in 2008 ð LEIR ð Early beam OK in 2007; Nominal 80% ð Recommissioning needed (see C. Carli’s list) [C. Carli] – Long HW tests period + dry runs. – Hopefully short cold check-out ð (AD and/or SPS) OP issue for 2009+ ATOP days 2009 D. MANGLUNKI BE/OP 14

Operations review 2008 and beam status in the different machines Ions for LHC [2] ð PS ð In good shape for early beam (2007) ð Vacuum needs careful monitoring (see 2007) ð Nominal still to be produced – MD time needed in parallel with SPS commissioning ð SPS ð Early accelerated in 2007 (10% extracted due to PS vacuum fault) ð In 2009 – Commissioning of consolidated RF hardware – Extraction of synchronized bunches – Time permitting: tests of alternative “nominal” filling schemes (Would need nominal beam from PS) ATOP days 2009 D. MANGLUNKI BE/OP 15