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

2. MEG Review February 20072 Overview Machine Production Status & Schedule Machine Production Status & Schedule C-W Area + Beam Line Status & Schedule C-W Area + Beam Line Status & Schedule Integration into Beam Schedule 2007 Integration into Beam Schedule 2007

3. Peter-Raymond KettleMEG Review February 20073 Machine Status original Completion Date: original Completion Date: ~ mid-May 2007 ~ mid-May 2007 NEW Completion Date: NEW Completion Date: ~ end-February & expected ~ end-February & expected Ready for testing mid-April ~ 2007 original Completion Date: original Completion Date: ~ mid-May 2007 ~ mid-May 2007 NEW Completion Date: NEW Completion Date: ~ end-February & expected ~ end-February & expected Ready for testing mid-April ~ 2007 MEG C-W. StatusEnd2006 StatusEnd2006

4. Peter-Raymond KettleMEG Review February 20074 Bellows system Tested ready for shipment Bellows system Tested ready for shipment Beam Elements available Beam Elements available Power Supplies available Power Supplies available Beam Diagnostic Elements Beam Diagnostic Elements ( shutter, diaphragms, x-, y-slits, quartz crystal+TV-camera) ( shutter, diaphragms, x-, y-slits, quartz crystal+TV-camera) available or almost ready available or almost ready Bellows system Tested ready for shipment Bellows system Tested ready for shipment Beam Elements available Beam Elements available Power Supplies available Power Supplies available Beam Diagnostic Elements Beam Diagnostic Elements ( shutter, diaphragms, x-, y-slits, quartz crystal+TV-camera) ( shutter, diaphragms, x-, y-slits, quartz crystal+TV-camera) available or almost ready available or almost ready Beam Line Components C-WC-W ComponentsSection Quadrupole Doublet Quadrupole Doublet x-, y-Steering Magnets x-, y-Steering Magnets beam Shutter + Slits beam Shutter + Slits Quadrupole Doublet Quadrupole Doublet x-, y-Steering Magnets x-, y-Steering Magnets beam Shutter + Slits beam Shutter + Slits BellowsSection Bellows System with stroke of ~ 2.2m drives COBRA Insertion System to place target at centre of COBRA Magnet Bellows System with stroke of ~ 2.2m drives COBRA Insertion System to place target at centre of COBRA Magnet TargetSupportTargetSupport LiF Target holder + LiF Target holder + vacuum chamber vacuum chamber LiF Target holder + LiF Target holder + vacuum chamber vacuum chamber

5. Peter-Raymond KettleMEG Review February 20075 Machine Schedule Completion of manufacture ~ end-February 2007 Completion of manufacture ~ end-February 2007 Acceptance Tests in Amersfoort NL (or PSI) Acceptance Tests in Amersfoort NL (or PSI) with HVEE, INFN, PSI ~ mid-April 2007 ? with HVEE, INFN, PSI ~ mid-April 2007 ? Shipment to PSI ~ end-April ? Shipment to PSI ~ end-April ? Machine Installation + Machine Installation + Shipment/Guarantee Test ~ mid-April to mid-May 2007 Shipment/Guarantee Test ~ mid-April to mid-May 2007 Completion of manufacture ~ end-February 2007 Completion of manufacture ~ end-February 2007 Acceptance Tests in Amersfoort NL (or PSI) Acceptance Tests in Amersfoort NL (or PSI) with HVEE, INFN, PSI ~ mid-April 2007 ? with HVEE, INFN, PSI ~ mid-April 2007 ? Shipment to PSI ~ end-April ? Shipment to PSI ~ end-April ? Machine Installation + Machine Installation + Shipment/Guarantee Test ~ mid-April to mid-May 2007 Shipment/Guarantee Test ~ mid-April to mid-May 2007

6. Peter-Raymond KettleMEG Review February 20076 Cockcroft-Walton Area C-W AREA: C-W AREA: Area presented Nov. 2006 at Area presented Nov. 2006 at Coordination Committee Research Coordination Committee Research Area West Area West Officially in Shutdown Programme Officially in Shutdown Programme area & infrastructure planned be area & infrastructure planned be installed by the end of Shutdown installed by the end of Shutdown beam-axis extension survey end 2006 beam-axis extension survey end 2006 infrastructure groups + Health Physics infrastructure groups + Health Physics notified – need Ministry of Health notified – need Ministry of Health clearance for the new area + C-W clearance for the new area + C-W  M3 shielding to be removed now to  M3 shielding to be removed now to check space check space more detailed meetings still needed to more detailed meetings still needed to finalize all points (Interlock system) finalize all points (Interlock system)

7. Peter-Raymond KettleMEG Review February 20077 Cockcroft-Walton Area cont. Constraints Safety System + Safety System + Electrical Infrastructure Electrical Infrastructure unaltered unaltered Permanent Access from Permanent Access from outside outsideConstraints Safety System + Safety System + Electrical Infrastructure Electrical Infrastructure unaltered unaltered Permanent Access from Permanent Access from outside outside  M3 Shielding Must be MODIFIED  M3 Shielding Must be MODIFIED  E5 Zone  E5 Shielding Wall needs modifying  E5 Shielding Wall needs modifying Approx. form C-W Area Approx. form C-W Area

8. Peter-Raymond KettleMEG Review February 20078 C-W Area Layout Virtually all Standard Concrete Blocks Virtually all Standard Concrete Blocks StillProblematicStillProblematic

9. Peter-Raymond KettleMEG Review February 20079 C-W Area Shielding Planned Work needed for Completion (By mid-April) (By mid-April) removal of walls + measure & removal of walls + measure & layout check - freeze design layout check - freeze design order special shielding + start order special shielding + start standard shielding construction standard shielding construction infrastructure completion: infrastructure completion: water, compressed-air, power water, compressed-air, power Safety systems completion (Interlock) Safety systems completion (Interlock) Ministry of Health Approval Ministry of Health Approval test of Safety System (Beg. April) test of Safety System (Beg. April)

10. Peter-Raymond KettleMEG Review February 200710 Testing & Integration into Beam Schedule Full test with LiF-target only possible when: area + safety aspects completed area + safety aspects completed C-W beam line components magnets, vacuum chambers etc. at PSI C-W beam line components magnets, vacuum chambers etc. at PSI C-W Bellows System at PSI (will arrive soon storage arranged) C-W Bellows System at PSI (will arrive soon storage arranged) target prepared target preparedCONSTRAINTS: cannot be tested in parallel with Beam Commissioning cannot be tested in parallel with Beam Commissioning bellows system cannot be placed in zone DC insertion system needed bellows system cannot be placed in zone DC insertion system needed C-W Bellows System cannot be in place during any DS Insertion C-W Bellows System cannot be in place during any DS Insertion TCs or DCs or End-Cap installation/removal !!! TCs or DCs or End-Cap installation/removal !!! Proposed Commissioning mid-April – mid-June Proposed Commissioning mid-April – mid-June  SEE Proposed Beam Schedule 2007  SEE Proposed Beam Schedule 2007 Full test with LiF-target only possible when: area + safety aspects completed area + safety aspects completed C-W beam line components magnets, vacuum chambers etc. at PSI C-W beam line components magnets, vacuum chambers etc. at PSI C-W Bellows System at PSI (will arrive soon storage arranged) C-W Bellows System at PSI (will arrive soon storage arranged) target prepared target preparedCONSTRAINTS: cannot be tested in parallel with Beam Commissioning cannot be tested in parallel with Beam Commissioning bellows system cannot be placed in zone DC insertion system needed bellows system cannot be placed in zone DC insertion system needed C-W Bellows System cannot be in place during any DS Insertion C-W Bellows System cannot be in place during any DS Insertion TCs or DCs or End-Cap installation/removal !!! TCs or DCs or End-Cap installation/removal !!! Proposed Commissioning mid-April – mid-June Proposed Commissioning mid-April – mid-June  SEE Proposed Beam Schedule 2007  SEE Proposed Beam Schedule 2007