JBL - 12/09/2013

Linac4 connectionWork to be done and draft planning

JBL-12/09/2013

JBL - 12/09/2013

2 different areas.

• LBE line upgrade

• Linac2/Linac4 interface

JBL - 12/09/2013

Linac4/Linac2 interfaceWhat to be done?

1. Shielding wall2. Emergency exit3. Château4. Chicane

JBL - 12/09/2013

Linac4/Linac2 interface

ID Tasks Estimated time1 Removal of beam line between Linac2 and BHZ.20 1 week

2 Drill an emergency exit door in Linac2 wall 2 weeks

3 Construction of the Château 1 week

4 Build the chicane in L2 tunnel 1 week

5 Shielding wall –bdg 363 3 weeks

6 Installation of remaining TL (vertical step to BHZ.20) (after 3) 3 weeks

7 Modification of L2 access door (after 4) 1 week

JBL - 12/09/2013

LBE upgradeID Tasks Estimated time1 Cool down--- Is it needed? 2 weeks

2 Removal of Linac2 LBE 1 week

3 Installation of Linac4 LBE line, dump and shielding 3 weeks

JBL - 12/09/2013

Draft Planning• 4 weeks for hardware and beam commissioning (very conservative considering the TL will have been

already commissioned up to the debuncher (H- stripping test stand). Week 1 2 3 4 5 6 7 8 9 10 11 12

Linac2/Linac4 interfaceLine removal up to BHZ.20Emergency exit doorChâteauChicaneShielding wallInstallation of TL and BHZ.20L2 access doorLBECool down?Removal of L2 LBEInstallation of L4 LBEBeam commissioning

Beam OK to PSB

• Time needed for the L2/L4 : 7 weeks• Time needed for LBE : 4 weeks (cool down not taken into account!).• Beam could be delivered to PSB 11 weeks after the Linac2 shut down.• Work in the LBE area cannot be done if ions in the PS.• If an ion run right after Linac2 shutdown, no cool down time necessary for the LBE work.