Tues Mar 24LC-ABD / LCUK, Bristol1 Positron Target Prototype - Status Leo Jenner.

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Presentation transcript:

Tues Mar 24LC-ABD / LCUK, Bristol1 Positron Target Prototype - Status Leo Jenner

Tues Mar 24LC-ABD / LCUK, Bristol2 Overview The set-up Latest Simulation Project plan Progress

Tues Mar 24LC-ABD / LCUK, Bristol3 ILC

Tues Mar 24LC-ABD / LCUK, Bristol4

Tues Mar 24LC-ABD / LCUK, Bristol5

Tues Mar 24LC-ABD / LCUK, Bristol6 The plan is still the same… Sweep in parameter space of B-Field, Rotation Speed and Immersion (1 T, 2000 rpm, 50 mm) Observation of kicks as spokes traverse field Measurement of eddy currents by torque and direct heating ( Lei Zang: PhD student, Liv ) Additional support from Duncan Scott ( ASTeC ) Study of rotor-dynamics (LLNL: accelerometers) Simulations from Jim Rochford (RAL) in parallel with LLNL

Tues Mar 24LC-ABD / LCUK, Bristol7 B-field Immersion Speed 2000 rpm 1500 rpm 1000 rpm 500 rpm

Carmen spoke model Retarding torque predicted by CARMEN for 100rpm for a full revolution 90 o 18 o 162 o 234 o 306 o Alignment at t=0 18 o 90 o 162 o 234 o 306 o Model results; full revolution Here we see the torque peaks correspond to each point a spoke crosses the – ve X axis i.e. when a spoke passes through the coil centres rotation

Tues Mar 24LC-ABD / LCUK, Bristol9

Tues Mar 24LC-ABD / LCUK, Bristol10

Conclusion I’m confident the experimental programme will be completed in the next 2 months PAC paper, NIM paper will follow Thank you and goodbye!