EMMA 24 th February 2009 ALICE Stakeholder Meeting

ALICE Stakeholder meeting - Feb 2009 IOT Racks EMMA Layout

ALICE Stakeholder meeting - Feb 2009 EMMA Infrastructure upgrade in progress in ALICE Accelerator Hall

ALICE Stakeholder meeting - Feb 2009 Injection Line Assembly in progress in S Block

ALICE Stakeholder meeting - Feb 2009 Integration IOT Rack ALICE Diagnostics Beamline RF Distribution

ALICE Stakeholder meeting - Feb 2009 Aims & Objectives of EMMA Project World’s first NS-FFAG (non-scaling Fixed Field Alternating Gradient) accelerator FFAG: Field fixed in time but varies across pipe Nonscaling: Dipole field scales with momentum but focussing quadrupole fields do not – –Optics changes during acceleration –Betatron Tune changes during acceleration –Resonances unavoidable –But rapid acceleration means this is not fatal. (We hope)

ALICE Stakeholder meeting - Feb 2009 CONFORM CONFORM ( COnstruction of a Nonscaling FFag for Oncology, Research, and Medicine ) Total funds £6.9m over 4 year project lifecycle from RCUK Basic Technology from 1 st April 2007 Led by University of Manchester and The Cockcroft Institute including RAL, JAI, and others. Also FNAL, Brookhaven, Grenoble –EMMA design and construction –PAMELA design study for hadron therap machine –Applications study for other applications BASROC (British Accelerator Science and Radiation Oncology Consortium) umbrella group of academic, medical and industry specialists in accelerator and medical technology with the aim of promoting the use of accelerators in science, industry and medicine. –

ALICE Stakeholder meeting - Feb 2009 EMMA Basic Parameters Energy range10 – 20 MeV LatticeF/D Doublet Circumference16.6 m No of cells42 Normalised transverse acceptance3π mm-mrad Frequency (nominal)1.3 GHz No of RF cavities19 Average beam current13 μA Repetition rate1, 5, 10, 20 Hz Bunch charge16-32 pC single bunch

ALICE Stakeholder meeting - Feb 2009 Requirements Full aperture injection and extraction at all energies 10 – 20 MeV Many lattice re-tunings (vary ratio of dipole to quadrupole fields) Vary frequency, amplitude and phase of RF cavities Non-accelerated operation to map closed orbits and tunes vs momentum Map longitudinal and transverse acceptances with probe beam To be heavily instrumented with beam diagnostics, etc.

ALICE Stakeholder meeting - Feb 2009 Ring Magnets Requirements / Solution Adjust dipole & quadrupole components independently - Mount magnets on independent radial linear slides Fields identical in every cell despite kickers and septum - Field clamps at cell entrance face of QD & exit face of QF. Adjusted at the factory Very large good field region for range of closed orbits - Optimised pole profile implemented Due to extreme compactness of lattice, D & F magnets Are in very close proximity. Consequence: field computation and measurement with both magnets in place has been essential. Results from the prototype measurements have been implemented in the lattice simulations Are short compared with aperture. Consequence: integrated strength is dominated by end-field contributions All magnets scheduled to be delivered from TESLA by 10 th April 2009

ALICE Stakeholder meeting - Feb 2009 RF Cavities 20 (19 + spare) production cavity construction in progress – give fast acceleration 4 of 5 batches delivered to DL 5 th batch – scans awaiting approval by DL

ALICE Stakeholder meeting - Feb 2009 Injection/Extraction Septum Design In house design of septum and vacuum chamber in progress Wire eroding of lamination stacks is in progress. Delivery scheduled for Feb – Mar 2009 Manufacture Misc. septum components Apr – May 2009 Magnet measurements scheduled for Jun 2009 Plan view of septum in vacuum chamber Section view of septum in vacuum chamber ISO view of septum with vacuum chamber removed

ALICE Stakeholder meeting - Feb 2009 Kicker Magnet Design Ferrite CDM5005 C core (Ceramic Magnetics, New Jersey) 100 mm Kicker component manufacture by Brite Precision, Newbury Ferrite blocks manufactured by Ceramic Magnetics, New Jersey Prototype kicker magnet complete. Four production devices to follow subject to successful testing Delivery to APP in early March to be used as the test load for the kicker power supplies

ALICE Stakeholder meeting - Feb 2009 Standard Ring Vacuum Chamber BPM Block Contract placed for BPM pickups with Testbourne. Delivered November 2008 Contract placed with VG Scienta for the vacuum chambers. Manufacture in progress – Batch Delivery – March 2009 Clean vacuum testing & RGA cleanliness tests at the factory before delivery to Daresbury Particle processing at Daresbury

ALICE Stakeholder meeting - Feb 2009 RF Distribution Contact placed with Q-Par Angus in Oct Manufacture and testing in progress Delivery due end of March 2009

ALICE Stakeholder meeting - Feb 2009 RF Source Inductive Output Tube VIL kW Transmitter Contact placed with CPI in Sep Full testing at CPI before delivery Delivery due end of March 2009 Commissioning at Daresbury in late April – early May

ALICE Stakeholder meeting - Feb 2009 INJECTION LINE ALICE to EMMA New Dipoles x 2 (33°) & BPMs at dipole entrance Position measurement New Dipole 30° & BPMs at dipole entrance Position measurement BPM Position measurement Wall Current Monitor New Quadrupoles x 13 Ion Pump Vacuum valve Tomography Section Screens x 3 (emittance measurement) SRS Quadrupoles x 3 Screen & Vert. Slit Beam Direction SRS Quadrupoles x 2 Screen Vacuum valve Screen Emittance measurement Combined H and V Steering Magnet x 4 EMMA Ring ALICE Match the probe beam to the requirements of EMMA Measure the properties of the probe beam Vertical Steering Magnet x 2 Beam Dump New Dipole 30°

ALICE Stakeholder meeting - Feb 2009 DIAGNOSTICS BEAMLINE LAYOUT Spectrometer dipole entrance Screen Faraday Cup E-O Monitor Screen x 3 Tomography Section Wall Current Monitor BPM & Valve SRS Quadrupoles x 6 New Quadrupoles x 4 ALICE New Dipole (43°) & BPMs at dipole entrance Current measurement Longitudinal profile Position measurement New Quadrupoles x 4 Screen & Vert. Slit Emittance measurement Extracted momentum Screen Location for Transverse Deflecting Cavity (NOT IN BUDGET) Combined Horizontal and Vertical Steering Magnets x 4 Vertical Steering Magnet x 2

ALICE Stakeholder meeting - Feb 2009 Timescale for Installation ALICE shutdown25 Oct - 21 Nov 2008Complete Diamond drilling of ALICE wall, cable tray installation EMMA off line build of modules in S blockNov Jul months ALICE shutdown (In progress now)23 nd Feb - 29 th Mar weeks EMMA Cable pull (90%) through external labyrinth, ALICE Dipole installation, Injection line girders through equipment access doorway EMMA installation in Accelerator HallMar - Aug months ALICE shutdown (dates to be confirmed) 8 th Jun - 13 th Jul weeks EMMA Cable pull through external labyrinth (10%), Controls cable pull through the control room labyrinth, Ring girder installation through equipment access doorway (except Injection & Extraction girders) Injection line complete ready for commissioning with electrons19 th Jul 2009 Test IOTMay 2009 Install RF waveguide distributionAug 2009 Commission RF Sep 2009 EMMA Injection & extraction septum girder available for installation through equipment access doorway end of Aug 2009 ALICE shutdown (dates to be confirmed)15 th Sep - 15 th Oct weeks Test systems in Accelerator HallSep - Oct months Ring and phase 1 diagnostic beamline complete31 st Oct 2009 Commission with electrons starting1 st Nov 2009

ALICE Stakeholder meeting - Feb 2009 Summary Design phase and Procurement is well advanced with major contracts placed Major components started to arrive in November 2008, off-line build is in progress Access to ALICE accelerator Hall required for installation work Shutdowns required to ALICE to open the cable route labyrinth We aim to have the ALICE to EMMA Injection line ready for commissioning with electrons by 19 th July 2009 We aim to be ready for commissioning the EMMA ring with electrons by 1 st November 2009