Tokyo - Topical Meeting, March Peter-Raymond Kettle Beam Line Update End-Caps End-Caps Insertion System Insertion System Target System Target System Schedule Schedule

Peter-Raymond KettleTokyo - Topical Meeting, March COBRA End-Caps Complex design He/Vacuum/N 2 /Air interface Complex design He/Vacuum/N 2 /Air interface Materials minimized Al & CH 2 /EVAL (background) Materials minimized Al & CH 2 /EVAL (background) Non-disruptive Access for Insertion System, Non-disruptive Access for Insertion System, Cables, Gas etc. Cables, Gas etc. Upstream End-Cap: Design Completed Downstream: On Schedule virtually completed linked to Insertion System linked to Insertion System USUSDSDSManufacturer Found & Schedule Still as planned USUS DSDS

Peter-Raymond KettleTokyo - Topical Meeting, March Manufacturer specialists in complex welding & structural design AMS-02 spectrometer He-vessel 2500 l Superfluid He for ISS mission 2008 ISS mission 2008 AMS-02 spectrometer He-vessel 2500 l Superfluid He for ISS mission 2008 ISS mission 2008 ISS

Peter-Raymond KettleTokyo - Topical Meeting, March Insertion System Connects to accelerator Beam pipe Gliding support rings NBR RETRACTED into End-Cap Replacewithwindow Gas-tight to He-side CH 2 /EVAL window Gas-tight to He-side CH 2 /EVAL window normally connected to motor-driven accelerator normally connected to motor-driven accelerator beam tube beam tube frictional hand-drive via electric drill/crank-handle frictional hand-drive via electric drill/crank-handle Detailed FEM study Electric-drill or hand drive View from Inside COBRA

Peter-Raymond KettleTokyo - Topical Meeting, March Target System CH 2 or Rohacell Rohacell Various solutions under study: UCI/PSI/KEK UCI/PSI/KEK Permanent Muon Target Rohacell foam/CH 2 combination Rohacell foam/CH 2 combination Complete Rohacell (too thick mm) Complete Rohacell (too thick mm) CH 2 or polystyrene Target + wire frame CH 2 or polystyrene Target + wire frame MOST LIKELY MATERIAL for initial target PE (CH 2 =CH 2 ) a~ 0.15 or Polystyrene C 6 H 5 CH=CH 2 a~ 0.05 Ellipse: 6  major-axis 162 mm, minor axis 60 mm major-axis 162 mm, minor axis 60 mm thickness 150µm CH 2 equivalent thickness 150µm CH 2 equivalent Support from DC frame- rotatable or translational from DC frame- rotatable or translational Prototypes be investigated at UCI Prototypes be investigated at UCI Target orientation Monte-Carlo just about finished Various solutions under study: UCI/PSI/KEK UCI/PSI/KEK Permanent Muon Target Rohacell foam/CH 2 combination Rohacell foam/CH 2 combination Complete Rohacell (too thick mm) Complete Rohacell (too thick mm) CH 2 or polystyrene Target + wire frame CH 2 or polystyrene Target + wire frame MOST LIKELY MATERIAL for initial target PE (CH 2 =CH 2 ) a~ 0.15 or Polystyrene C 6 H 5 CH=CH 2 a~ 0.05 Ellipse: 6  major-axis 162 mm, minor axis 60 mm major-axis 162 mm, minor axis 60 mm thickness 150µm CH 2 equivalent thickness 150µm CH 2 equivalent Support from DC frame- rotatable or translational from DC frame- rotatable or translational Prototypes be investigated at UCI Prototypes be investigated at UCI Target orientation Monte-Carlo just about finished DC Support Structure

Peter-Raymond KettleTokyo - Topical Meeting, March Target Parking In-Beam Position Parked Position DCStructure InsertionBellows Target Parking possible by simple Rotation

Peter-Raymond KettleTokyo - Topical Meeting, March Target Parking cont. DC-extent InsertionBellows Target Simple target Rotation possible possible Shown:  = 0 ̊ Beam 52 ̊ Touching 52 ̊ Touching 80 ̊ Parked 80 ̊ Parked

Peter-Raymond KettleTokyo - Topical Meeting, March Schedule US: Manufacture ~ Beg. May EARLIER??? DS: Manufacture ~ Mid June EARLIER ???