1. 1 Effect of staging on module connection and support arrangement Yury Ivanyushenkov RAL

2. 2 Beam Tracker module #1 AFC module #1 RF module #1 AFC module #2 AFC module #3 RF module #2 Tracker module #2 MICE Cooling Channel

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5. 5  - STEP I: spring 2006 STEP II: summer 2006 STEP III: winter 2007 STEP IV: spring 2007 STEP V: fall 2007 STEP VI: 2008 MICE Stages by Alain Blondel

6. 6  - STEP I STEP II STEP II.V Insert absorber (solid) between the two halves and measure Pt & E distribution and emittance growth STEP II.VI Split tracker in two parts and measure against each other (systematics) Establish beam match andwether we have all knobsnecessary to drawEmittance vs transmissioncurve. Measure emittance These are mostly questions for beam design and matching to and within solenoid. MICE Additional Stages by Alain

7. 7 STEP V STEP V.0 Shorter, less expensive, no coupling coil, (very limited optics flexibility) does this work in flip, RFoFo, non flip modes? These are mostly optics questions MICE Additional Stages by Alain

8. 8 Module–to–Module Interface Matrix Tracker #1 AFC #1RF #1AFC #2RF #2AFC #3Tracker #2 Stage 1 Stage 2yes Stage 2.5yes Stage 2.6yes Stage 3yes Stage 4yes Stage 5.0yes Stage 5yes Stage 6yes Notation: means interface

9. 9 Module–to–Module Interface Requirements Tracker #1 interfaces with : AFC #1 OR Tracker #2 AFC #1 interfaces with : Tracker #1 AND Tracker #2 OR Tracker #1 AND RF #2 RF #1 interfaces with : AFC #1 AND AFC #2 AFC #2 interfaces with : RF #1 AND Tracker #2 OR RF #1 AND RF #2 RF #2 interfaces with : AFC #1 AND AFC #3 AFC #3 interfaces with : RF #2 AND Tracker #2 Tracker #2 interfaces with : Tracker #1 OR AFC #1 OR AFC #2 OR AFC #3

10. 10 AFC Module Interface Requirements AFC #1Tracker #2 AFC #1 RF #1Tracker #1 AFC #1: AFC #2 Tracker #2 RF #1 AFC #2 RF #2RF #1 AFC #2: AFC #3 Tracker #2 RF #2AFC #3: Stage 4 Stages 5 and 6 Stage 5 Stage 6 Gate valve Gate valve Gate valve Tracker #1 Gate valve Gate valve

11. 11 “Universal” AFC Module Tracker #1 Universal AFC module Tracker #2 RF #1 or RF #2 Gate valve Gate valve

12. 12 Maximal Forces on Modules in Stage 6 ModuleMax force, MN Case Central focus pair module0All Coupling coil module0.2143 from centre; 0.1859 towards centre Flip mode, Case 2 Non-Flip mode, Case 2 Edge focus pair module0.0967 from centre; 0.0372 towards centre Flip mode, Case 3 Non-Flip mode, Case 2 Tracker solenoid module0.4861 towards centre Non-Flip mode, Case 2

13. 13 “Universal” AFC Module : Forces in Stage 6 Universal AFC module Beam Cooling channel centre 0.0967 MN (in Flip mode, Case 3) 0.0372 MN (in Non-Flip mode, Case 2)

14. 14 Next steps Q: Do we want a “universal” AFC module ?