TAC12 report back Outline:Organization CESSAMag Part A Building Injector Control TAC 2013 Reporting back E.Huttel 1

Organization Central sector serving machine and BL: Not formalized, new structure would need approval of council, head of central sector to be assigned Informal practiced. Control/Computing Staff: One (A.Ismail) employed, one left (Z.Quazi), open positions not yet filled Control and Computing work together despite being in different sectors New in 2013:Left in 2013 Control-engineer:A.IsmailZ.Quazi Electrician:O.Kahdar Magnets:M.Ebbeni Beam-Dynamics:K.Maukyan Purchasing:M.Salama Building/Safety:A.Basheer Maintenance:I.Zoubi Administration:R.Ramadan(Nov.13) BL scientist for PX: R.Kaneez (Nov.13) TAC 2013 Reporting back E.Huttel 2

CESSMag Magnets designed and design approved (Jun. 2013) Call for bids(Jul. 2013) Opening of Bids(Aug. 2013) Expert Meeting with externals cancelled due to extended of deadline Selection: Dipole: TESLA Quadrupoles : ELYT + Turkey (coils) Sextupoles: CERN + Cyprus + Pakistan Clearance to vacuum chamber increased to > 1 mm Split dipole: Not foreseen (expect problems due to long structure) Assembling of vacuum chamber solved (see girder design) Systematic and random Multi-poles studied (later this talk) Prices allow Power Supplies to be fully done by CERN Contribution E.Huttel, A.Milanese, J.-P. Burnet TAC 2013 Reporting back E.Huttel 3

Crane: Still no maintenance contract Specs have to be defined by us Grounding: (ordered, built up 2014) A bus bar (0.5 X 250 mm Cu): In the Booster ring tunnel In the Storage ring tunnel Around the experimental Hall Additional ground pits inside the Hall Donated equipment: Items from free zone moved to SESAME Unneeded equipment still at SESAME (difficult to get rid off, due to custom) Hutches from Lure (who knows about it?) Building TAC 2013 Reporting back E.Huttel Solar Panel:No approach 4

Microtron No operation since 2013 due to Booster built up New PS for main magnet To be done during commissioning: Emittance Measurement (Quadrupole scan) Injection Elements: New Power supplies for injection Septum and Kicker PS (FUG), Switch (SOLEIL) Transformer oil changed and repaired Sparks (inside Septum, conditioned to 100 kV) To come next:PS Booster Extraction Septum (design done) PS Booster Extraction Kicker SR Injection Septum SR Injection Kicker Injector TAC 2013 Reporting back E.Huttel Contribution M.Attal 5

Control Staff: One in (A.Ismail), one out (Z.Quazi), looking for two. Cooperation Control with Computing: yes (Regular Meetings) Expert Visit:PLCs installation (expert visit SOLEIL) CSS installation (expert visit ANKA) LINUX 6:Installed Integration (Cooperation) with clients: (PS group (up to programming), RF, VAC) Black Boxes:Repository built up. Booster-Control successfully built up Vacuum-Valves/Safety:PLC EPICS CSS Vacuum-Pressure:MOXA EPICS CSS RF:PLC EPICS CSS PS-Current:EPICS CSS PS-Safety: PLC EPICS CSS Timing: VME EPICS CSS To be done:Data Save-RestoreDatabase Alarm handlerMotion Control See visit Contribution A.Ismail/I.Saleh TAC 2013 Reporting back E.Huttel 6

Radiation Safety: New license for Microtron commissioning from JNRC Radiation-monitors ordered and delivered Personal Safety System ordered, installation till Jan.2014 Back-up-plan with JNRC? Contribution M.Mansour Booster Diagnostics: Digital cameras, scopes purchased YAG screen from ANKA broken AOB TAC 2013 Reporting back E.Huttel 7

Cooling system: Completed and successfully tested Contribution F.Makahleh Vacuum System:No in-kind contribution from Palestine SR vacuum system tendered Selected supplier FMB Contribution F.Makahleh TAC 2013 Reporting back E.Huttel 8 Solid State Amplifier: Delivery of all equipment from SOLEIL items on hold by French government Feb 2013 Delivery approvedAug 2013 Cavities: Donated cavities from ELETTRA inspected, tendering for new ones done

TAC 2013 Reporting back E.Huttel Girder 6 feeds 3 struts used for transverse and longitudinal adjustment 3 jacks used for vertical adjustment and clamping Additional 3 vertical jacks used for clamping Tolerances (flatness, positioning): 0.05 mm 9

Girder-Design TAC 2013 Reporting back E.Huttel Dipole to be moved out by trolley Vacuum chamber lifted in from top 10

Which Girder-Tolerances Needed? TAC 2013 Reporting back E.Huttel 11 +/- [mm]Dipole optics QF optics Support Specs Shim range Shim resolution Girder Specs horizontal ? ? vertical ? ? When having shims, why small tolerances for the girder?

Dipole-Multipole Tolerances B 4 /B 1 =0.0002B 5 /B 1 =0.0004B 6 /B 1 = B 7 /B 1 = B 8 /B 1 = B 4 /B 1 = General Remarks Which Dynamic aperture is needed (lifetime, injection)? Which program (OPA, AT, BETA)? Multipole contribution distributed (AT) or at exit/entrance (OPA)? Selected radius is 20 mm for bend and 24 or QP, SP. B = Σ B n x n-1, n=1 dipole Limits in integrated strengths B n [m -n+2 ] about the same for DP,QP,SP. TAC 2013 Reporting back E.Huttel 12 B 8 /B 1 =0.0006B 7 /B 1 = B 4 /B 1 = B4 in center

QF Magnetic Multipole Tolerances TAC 2013 Reporting back E.Huttel Quadrupole composed from 4 segments. Assembling Error: Causes random 6-, 8-pole components 0.1 mm causes r = 20 mm Finite Size: Causes systematic 12, 20 pole component 12 pole mostly corrected by chamfer Achievable: 6,8-pole 12,20-pole random σsystematic ANKA ALBA: SOLEIL: Tolerable: SESAME: dB/B <

DP,QP Random-Field-Error and Beta-Beat Dipole dB/B = orbit dist.: 2 mm dk/k = vert.beta beat: 0.6 m QFdk/k = horiz.beta beat:0.4 m vert. beat beat:0.1 m QDdk/k = horiz.beta beat:0.1 m vert. beat beat:0.2 m TAC 2013 Reporting back E.Huttel 14

QP Multipole Tolerances B 10 /B 2 = B 10 /B 2 = B 6 /B 2 = Random(per magnet) B 4 /B 2 = Systematic Random ALBA,IPAC10 TAC 2013 Reporting back E.Huttel 15

Random Multipole Errors Decapole due to Correctors TAC 2013 Reporting back E.Huttel Sextupole + Corrector → Decapole B 5 /B 3 = Working point shifted 16

Dipole End Chamfer Vertical focusing from edge ∫B’dl/B ρ =0.401 (1/m) B’(0)l / B ρ = (1/m) (∫B’dl- B’(0)l)/ B ρ = (1/m) tan(θ )/ρ = (1/m) Opera give less focusing strength than optical model No face rotation CERN initial: Less vert. focusing, more sector magnet, made QF obsolete (or changed to QF) CERN final, LEGO blocks, flexible, ok, Octupole? (ALBA, ASRS) Preferred TAC 2013 Reporting back E.Huttel 17

Beam Based Alignment Procedure: Select QP close to BPM Do orbit scan through QP Modulate QP current (Producing additional kick, when beam not in center) Orbit with no orbit modulation when QP is modulated gives BPM offset Can the QF used for vertical and horizontal plane? H-kick (0.2 mrad)Offset at QF: 2.0 mm5% QF-Modulation: orbit change: 0.5 mm V-kick (0.2 mrad)Offset at QF: 1.5 mm5% QF-Modulation: orbit change: 0.4 mm 10% QD modulation: orbit change 0.1 mm Conclusion:BBA works with QF in horizontal and vertical plane No individual PS needed for QD for BBA TAC 2013 Reporting back E.Huttel 18

Insertion device and Beta-Beat SESAME: PD-Beamline Wiggler-Parameter Length2m Period60.5mm No. Pols63 Magnet gap14 / 10 / (7)mm Vacuum gap12 / 8 / (5)mm Field1.1 / 1.5 / (1.9)T Without local correction the PX wiggler will produce a beta-beat of +/- 4 % Individual QD-PS favored but not necessary TAC 2013 Reporting back E.Huttel 19

Power Supply Procurement Cost of magnet system allows to purchase complete PS-package in framework of CESSMAg CERN resumes PS package Change in concept (Before: QP-PS in series, Purchasing as complete package turn-key from Industry) Now: QP-PS in series, PSI-Controller, Voltage-source, DCCT; Assembling at CERN Advantage: Better performance in respect of: Maintenance Adjustment of Beta-Beat Beam-Based Alignment Integration of Insertion-devices Cost: More manpower needed for development and assembling Concept endorsed by Review-Committee (J.F.Bouteille, R.Kunzi, R.Visintini, F.Bouvet) TAC 2013 Reporting back E.Huttel 20

Combined/Individual QP-PS and Air Conditioning-Limits Pro CombinedPro Individual Less expensive invest & operationEasier to repair (exchange) More efficient (water) coolingEasier for Beam Based Alignment Easier to synchronizeBeta Beat can be adjusted Less (cables) heat-load in the tunnelEasier to adjust insertion devices AC-LimitsCombinedIndividualRevised *) Individual Tunnel30 kW14 kW44 kW30 kW Hall60 kW7 kW+RF21 kW+RF20 kW+RF RF: 700 kW AC, 5% eff. into air 35 kW air or Water? *): 2 QF in series, cable length reduced to 60 m Conclusion:AC is compatible with Individual powered QF/QD TAC 2013 Reporting back E.Huttel 21 CERN: a revision of the installed cooling capacity is recommended. SESAME: The capacities of SESAME have to be accepted (cost- limited).

Needed stability for Dipole and Quadrupole PS BoosterStorage- Ring-QF Storage- Ring-QD Units Needed Tune Stability.01 Needed stability in k /m 2 Δk/k E inj /E final ΔI inj /I final for QF ppm Defines Tracking stability ( c I qp -I dp )/L dp Defines PS Stability SR corrector vert. Beam size.030mm Max change.003mm Max kick0.5mrad Orbit max kick5mm Kick for.003 mm mrad Relative strength SESAMEALBASOLEIL 8h stability QP501510ppm 8 h stability crr ppm Resolution1618 bit 16 bit - 15 ppm Needed stability TAC 2013 Reporting back E.Huttel 22

Synchronization Booster 1s50 ppm step all 50 µs SR240 s50 ppm stepall 15 ms SR Trigger precision: 1ms Trigger for each step or external start trigger and following internal clock? Clocks needed to be synchronized if only triggered for start ? Old Concept: Off-shelf controller : All PS from same provider to warranty synchronization? New Concept: PSI Controller for all devices: Synchronization warrantied. More fun with development. TAC 2013 Reporting back E.Huttel 23

PS Controller Ethernet PSI Gate way PSI controller DAC ADC PWM DCCT Ethernet PSI Gate way PSI controller PWM DCCT Commercial PS Voltage source Final PS built up by CERN/SESAME Commercial PS Power source Ethernet PS controller PWM DCCT Commercial PS Current source 32 QF-PS (3 kW)( 1 magnet in series) 16 QD-PS (3 kW)( 2 magnets in series) 1 SF-PS (2 x 3 kW ?)(32 magnets in series) 1 SD-PS (4 x 3 kW ?)(32 magnets in series) 1 DP-PS(440 kW)(16 magnets in series) Ethernet PSI Gate way PSI controller Serial out Serial in PWM DCCT 24 Foreseen for DP Foreseen for QP Foreseen for Corr Commercial PS Voltage source To be developed by CERN? SESAME? TAC 2013 Reporting back E.Huttel

PS-Cabling TAC 2013 Reporting back E.Huttel 25

Questions TAC 2013 Reporting back E.Huttel 26 New concept accepted. Individual PS for QF. PSI Controller for all PS. DAC card and off-shelf PS. DAC development by CERN or SESAME? Responsibility and Supervision by CERN Manpower from SESAME in limits of its capacity 26 Person months for 1 year? Two QD in series? 16 bit (one module less) or 18 bit? Public tender or contracting EEI for dipole PS?

Cavities TAC 2013 Reporting back E.Huttel 27 Invitation to Bid: Sep bids received :Nov. 13(RI, ELETTRA, TOSHIBA) Specification: Number: 4 Frequency: MHz Shunt Impedance: > 3.3 MΩ Max Cavity Voltage: > 650 kV Max Window Power: > 120 kW HOM-Damping Properties: Wave guide (BESSY)++ Beam-Pipe (KEK/PF)+ Temperature (ELETTRA)0

Purchasing Cavities TAC 2013 Reporting back E.Huttel 28 Two old ELETTRA cavities (reduced performance) available. Preferred: Purchasing of 4 new cavities ( ELETTRA, BESSY, KEKII/PF) Invitation to bid: Sep Opening of Bids: Nov (2.2 M$, 2.1 M$, 4.3 M$) Italy-INFN Contribution 1 M€ Initial proposal 2 new ELETTRA cavities Meeting Trieste Aug 2013, Agreed with INFN: SESAME can decide items to be purchased Money should be transferred to SESAMA account INFN Proposal Oct.2013: Two new ELETTRA cavities for 0.85 M €

HOM-Impedances and Stability TAC 2013 Reporting back E.Huttel 29

What to do? TAC 2013 Reporting back E.Huttel 30 2 Cavities3 Cavities4 Cavities Energy[GeV] U loss-tot [keV] Overvoltage2.5 3 P window [kW]80 P cavity [kW] U cav [kV] I beam [mA]

Comparing Cavities TAC 2013 Reporting back E.Huttel 31 ParameterUnitsBESSYELETTRAKEKII/PF R shunt MΩMΩ Q U max kV Pcav max kW Pwindow max kW R-HOM-L max kΩkΩ R-HOM-T max kΩ/m Values from E.Weihreter

RF Amplifier TAC 2013 Reporting back E.Huttel 32 Intended : Use 500 MHz solid state amplifier (0.6 kW Module) developed at SOLEIL Needed: 4 x 80 kW from 4 x 10 x 16 x 0.5 kW Status: 16 Modules combined and tested by SOLEIL. 40 kW tower will be built up by SOLEIL for THOMX (Beginning 2014). Export of Technology from SOLEIL to SESAME on halt (May 2013) Export approval received (Aug.2013) Intended: Built up of one 80 kW tower (Demonstrator) by SOLEIL, sold to SESAME. Participation of SESAME. Licensing of 500 MHz technology from SOLEIL to SIGAM-PHI-Electronics? Purchasing of further 3 towers from SIGMA-PHI-Electronics? Cost?

500 MHz 80 kW Solid-State-Amplifier X 16X 10 4 x Syn.Rad. Losses: (200 mA 600 kV) / 4 = 30 kW Cavity Losses: (500 kV) 2 / (6 MΩ)= 40 kW 4 Cavities:280 kW 0.65 kW10 kW 80 kW TAC 2013 Reporting back E.Huttel 33

RF-Amplifier-CRYELECTRA TAC 2013 Reporting back E.Huttel 34 Same transistor, same power-supply as SOLEIL

Visit ILSF / Test of ILSF Amplifier TAC 2013 Reporting back E.Huttel 35 Same transistor same performance: Pout: 650 W Gain:20 dB Efficiency: 55%

Injection-Septum-Kicker TAC 2013 Reporting back E.Huttel 36

Extraction Septum TAC 2013 Reporting back E.Huttel 37

Pulsed Magnets Parameter TAC 2013 Reporting back E.Huttel 38 ElementTypeLengthKickPulse length L [µH]U [V]I [A]C [µF]Field Injection Septum Electrostatic Half sine R: 2 m L: 0.5 m 14.5°250 µs MV/m Injection Kicker Stripline Half sine L: 0.3 m3 mrad6 µs T Extraction Bumper Iron Magnet Half sine L 0.17 m5 mrad1.7 ms T Extraction Kicker Stripline Flat-top L: 1 m2 mrad40 ns 190 ns Ω 20 m PFN T Extraction Septum C magnet, eddy current Half sine R: 5.73 m L: 1m 10°560 µs T