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Smith, P.J.

Paper Title Page
WEPLS005 The Target Drive for the MICE Experiment 2403
 
  • C.N. Booth, L.C. Howlett, P.J. Smith
    Sheffield University, Sheffield
  • N. Schofield
    University of Manchester, School of Electrical and Electronic Engineering, Manchester
 
  The MICE experiment requires a beam of low energy muons to test muon cooling. This beam will be derived parasitically from the ISIS accelerator. A novel target mechanism is being developed which will allow the insertion of a small titanium target into the proton beam halo on demand. The target must remain outside the beam envelope during acceleration, and then overtake the shrinking beam envelope to enter up to 5 mm into the beam during the last 2 ms before extraction. The technical specifications are demanding, requiring large accelerations and precise and reproducible location of the target each cycle. The mechanism must operate in a high radiation environment, and the moving parts must be compatible with the stringent requirements of the accelerator's vacuum system. A prototype linear electromagnetic drive has been built, and the performance is being measured and improved to meet the design specifications. Details of the drive, position readout and control systems will be presented, together with the performance achieved to date.