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MARS Simulation of Linac Momentum Dump

MARS Simulation of Linac Momentum Dump. S.D. Reitzner 10/26/2010. MARS Input. 400 MeV beam Gaussian beam shape Small beam “2 cm” worst case σ x = 0.294 cm σ y = 0.2355 cm Beam vertex (0, 0) cm (1.6, 0) cm Bins Depth: 1 cm Width: 1.5-2.4 cm. Binning for beam centred

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MARS Simulation of Linac Momentum Dump

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  1. MARS Simulation of Linac Momentum Dump S.D. Reitzner 10/26/2010

  2. MARS Input • 400 MeV beam • Gaussian beam shape • Small beam “2 cm” worst case • σx = 0.294 cm • σy = 0.2355 cm • Beam vertex • (0, 0) cm • (1.6, 0) cm • Bins • Depth: 1 cm • Width: 1.5-2.4 cm

  3. Binning for beam centred at x=1.6cm Steel Dump Z=0 Fine Bins Vacuum Copper Spacer

  4. Beam position Steel Dump N2 Copper

  5. Binning for beam centred at x=1.6cm Steel Dump Fine Bins Graphite Spacer

  6. Steel Dump N2 Graphite

  7. 400 MeV p predicted range in graphite: 39 cm Uncertainties smaller than symbols

  8. 400 MeV p predicted range in copper: 13 cm Uncertainties smaller than symbols

  9. Steel Upper Plate Bin width full plate

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