1. Status Report, ENTM 02/11/2010 BEAM INTERCEPTING DEVICES FOR LINAC 4

2. Overview  Beam stoppers for source/LEBT and for Linac4 transfer line  Chopper line collimator  Beam dumps for the movable bench (C. Maglioni)  50-100 MeV measurements bench dump  Beam dumps for LBE/LBS lines and LBS slit  Head, tail, H 0 /H - internal dumps for the PSB injection region (R. Chamizo)  Linac4 main dump (R. Chamizo) 2 O. Aberle, EN-STI, Linac4 Beam Coordination Committee - Meeting 20

3. 3 LINAC 4 layout

4.  Beam stoppers for source/LEBT 4 O. Aberle, EN-STI, Linac4 Beam Coordination Committee - Meeting 20  Beam dumps for the movable bench (C. Maglioni)  Linac4 main dump (R. Chamizo)  50-100 MeV measurements bench dump  Chopper line collimator

5. Beam stoppers for source/LEBT 5 O. Aberle, EN-STI, Linac4 Beam Coordination Committee - Meeting 20 LINAC4 Project Document No. L4-T-ES-0001 EDMS Document No. 1057463 Racetrack flanges are housing the beamstopper. Two flanges facing each other (180°) 3MeVL4-Nom Maximum H- Current40 mA80 mA Pulse Length150µs400µs Max Rep-Rate2Hz Beam Energy45 keV  Beam parameters

6. Beam stoppers for source/LEBT  Design finished  Production started  Ready by the end of the year  One unit with Iris to produce a pencil beam 6 O. Aberle, EN-STI, Linac4 Beam Coordination Committee - Meeting 20

7.  Produced and installed 7 O. Aberle, EN-STI, Linac4 Beam Coordination Committee - Meeting 20 Chopper line collimator (3MeV)

8. Beam stopper for Linac4 transfer line  Slit LBS  Slits LBE  Fast beam stopper  Sieve (removed)  Beam stopper 8 O. Aberle, EN-STI, Linac4 Beam Coordination Committee - Meeting 20

9. Beam stopper for Linac4 transfer line  Intension to reuse the existing stopper tank (layout dimensions and functionality)  Simulations for the material to be done  Cooling to be foreseen (additional piping) 9 O. Aberle, EN-STI, Linac4 Beam Coordination Committee - Meeting 20

10. Beam dumps for LBE/LBS lines and LBS slit  SPECIFICATIONS FOR BEAM DUMPS IN LINAC4 DUMP LINE, LBE AND LBS LINES  F. Regis will work on that  LBE dump  LBS dump, feasibility study for integration done  LBS slit  Start with the 3-12 MeV slit design  Go towards a stripping foil with a dedicated dump (below the spectro- meter magnet?  Have a thick slit, absorb most, but less clean beam? 10 O. Aberle, EN-STI, Linac4 Beam Coordination Committee - Meeting 20 LINAC4 Project Document No. L4-B-ES-0001 v.1.0 EDMS Document No. 1056611 v.1.0

11. 50-100 MeV measurements bench dump  USER SPECIFICATIONS FOR LINAC4 COMMISSIONING DUMP AT 50 AND 100 MEV  To be treated together with the main dump (160MeV)  Two solutions:  A “movable“ version for 50 and 100 MeV  Use a stationary dump for 160 MeV 11 O. Aberle, EN-STI, Linac4 Beam Coordination Committee - Meeting 20 LINAC4 Project Document No. L4-T-EP-0004 v.0.2 EDMS Document No. 1094599 v.0.2

12. 50-100 MeV measurements bench dump 12 O. Aberle, EN-STI, Linac4 Beam Coordination Committee - Meeting 20 50 MeV 100 MeV

13.  Chopper collimator done  Source stopper ready in January 2011  Dumps for the measurement bench April 2011  50/100 MeV dump – 160 MeV main dump for the end of 2012  LBE/LBS and slit from 2013 onwards  TL beam stopper for 2014  Head and tail /H 0 /H - for 2014 13 O. Aberle, EN-STI, Linac4 Beam Coordination Committee - Meeting 20 Planning

14. EVM / Planning 14 O. Aberle, EN-STI, Linac4 Beam Coordination Committee - Meeting 20 wuv1.0Generated:28-oct-2010 13:48 cmdwuWU IDBaselineStatusDescriptionWBSHolders EMail Start DateFinish DateComments cmdPxx# Skill[Missing] Email or ProfileOrg Code [Recharging]DurationUnit (M.WK, %)Start DateFinish DateComments cmdde# WeightDeliverable descriptionActual QtyTotal QtyUnitStart DateFinish DateComments wu48032 Baseline 2PLTL StopperLINAC4 2.13oliver.aberle@cern.ch1-Nov-201031-Mar-2012new date MSP10Materials & machining5515135000CHF MIS.S20FSU support5515110000CHF MSP30Design office5515125000CHF de1026Materials and oders0100%1-Jun-201131-Jul-2011delayed de206Electric parts0100%1-Jun-201131-Jul-2011delayed de3013Machining0100%1-Aug-201130-Sep-2011delayed de400Parts manufactured0100%1-Aug-201130-Sep-2011delayed de450 Technical specification & validation01U1-Nov-201028-Feb-2011new date de500Beam stoppers assembled01U30-Sep-20111-Dec-2011delayed de600Stopper fully tested01U1-Dec-20111-Feb-2012delayed de7025Stopper execution drawings0100%1-Mar-201130-Jun-2011delayed de800dump installed01U1-Mar-201231-Mar-2012 wu48028 Baseline 2ACStopper Ion sourceLINAC4 2.13oliver.aberle@cern.ch1-Nov-200930-Jan-2011Date modified MSP10Materials & machining5515050000CHF MIS.S20FSU support5515020000CHF MSP30Design office5515025000CHF de1035Materials and oders60100%1-Nov-200930-Sep-2010modified de2014Electric parts40100%1-Nov-200929-Oct-2010modified de3021Machining25100%1-Nov-200930-Sep-2010production de400Parts manufactured25100%1-Nov-200930-Sep-2010production de4525Stopper execution drawings100 %30-Nov-200926-May-2010Design finished de500Beam stoppers assembled02U1-Feb-201011-Oct-2010Date modified de600Stopper fully tested02U31-Oct-201030-Nov-2010Date modified de700Stopper installed02U1-Dec-201030-Jan-2011Renaming wu48038 Baseline 2ACDump conceptual designLINAC4 2.13rocio.chamizo@cern.ch1-Apr-20091-Oct-2010 de101 Technical specification & validation0.61U1-Apr-20091-Oct-2010 Checking new operation scenarios wu48034 Baseline 2AC Ho/H-,head & tail dumps - conceptual designLINAC4 2.13rocio.chamizo@cern.ch1-Jan-20091-Oct-2010Studies on going de101Technical specification ready0.81U1-Jan-20091-Oct-2010

15. EVM / Planning 15 O. Aberle, EN-STI, Linac4 Beam Coordination Committee - Meeting 20  EVM to be created for:  3-12 MeV measurement bench  LBE/LBS dumps and LBS slit  And the 50/100 MeV dump

16. 16 O. Aberle, EN-STI, Linac4 Beam Coordination Committee - Meeting 20 Reserve slides

17. 17 O. Aberle, EN-STI, Linac4 Beam Coordination Committee - Meeting 20 Reserve