CockcroftWalton Status Carlo Bemporad Angela Papa Giovanni Signorelli

Cockcroft-Walton Status Carlo Bemporad Angela Papa Giovanni Signorelli Peter-Raymond Kettle MEG Review February 2007 1

Overview Machine Production Status & Schedule C-W Area + Beam Line Status & Schedule Integration into Beam Schedule 2007 Peter-Raymond Kettle MEG Review February 2007 2

Machine Status • original Completion Date: ~ mid-May 2007 • NEW Completion Date: ~ end-February & expected Ready for testing mid-April ~ 2007 MEG C-W. Status End 2006 Peter-Raymond Kettle MEG Review February 2007 3

Beam Line Components Section Bellows Section Target Support C-W • Li. F Target holder + vacuum chamber • Bellows system Tested ready for shipment • Bellows System with • Beam Elements available stroke of ~ 2. 2 m drives • Power Supplies available COBRA Insertion System • Beam Diagnostic Elements place crystal+TV target at centre of ( shutter, diaphragms, x-, y-slits, toquartz -camera) • Quadrupole Doublet COBRA Magnet available or almost ready • x-, y-Steering Magnets • beam Shutter + Slits Peter-Raymond Kettle MEG Review February 2007 4

Machine Schedule Completion of manufacture ~ end-February 2007 Acceptance Tests in Amersfoort NL (or PSI) with HVEE, INFN, PSI ~ mid-April 2007 ? Shipment to PSI ~ end-April ? Machine Installation + Shipment/Guarantee Test Peter-Raymond Kettle ~ mid-April to mid-May 2007 MEG Review February 2007 5

Cockcroft-Walton Area C-W AREA: • Area presented Nov. 2006 at Coordination Committee Research Area West • Officially in Shutdown Programme area & infrastructure planned be installed by the end of Shutdown • beam-axis extension survey end 2006 • infrastructure groups + Health Physics notified – need Ministry of Health clearance for the new area + C-W • M 3 shielding to be removed now to check space • Peter-Raymond Kettle more detailed meetings still needed to finalize all points (Interlock system) MEG Review February 2007 6

Cockcroft-Walton Area cont. E 5 Zone E 5 Shielding Wall needs modifying Constraints • Safety System + Electrical Infrastructure unaltered • Permanent Access from outside Approx. form C-W Area M 3 Shielding Must be MODIFIED Peter-Raymond Kettle MEG Review February 2007 7

C-W Area Layout Virtually all Standard Concrete Blocks Still Problematic Peter-Raymond Kettle MEG Review February 2007 8

C-W Area Shielding Planned Work needed for Completion (By mid-April) removal of walls + measure & layout check - freeze design order special shielding + start standard shielding construction infrastructure completion: water, compressed-air, power Safety systems completion (Interlock) Ministry of Health Approval test of Safety System (Beg. April) Peter-Raymond Kettle MEG Review February 2007 9

Testing & Integration into Beam Schedule Full test with Li. F-target only possible when: • area + safety aspects completed • C-W beam line components magnets, vacuum chambers etc. at PSI • C-W Bellows System at PSI (will arrive soon storage arranged) • target prepared CONSTRAINTS: • cannot be tested in parallel with Beam Commissioning bellows system cannot be placed in zone DC insertion system needed • C-W Bellows System cannot be in place during any DS Insertion TCs or DCs or End-Cap installation/removal !!! Proposed Commissioning mid-April – mid-June SEE Proposed Beam Schedule 2007 Peter-Raymond Kettle MEG Review February 2007 10