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Beam Characterization with the TOFs

Beam Characterization with the TOFs. Mark Rayner. Saturday 13 th December Shift. Pions from 13 th December. Positrons from 13 th December. Cable Length Calibration (0,1). Cable Length Calibration (0,0). Cable Length Calibration (1,0). Cable Length Calibration (1,1). p=30MeV/c.

vivian-wilkerson
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Beam Characterization with the TOFs

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  1. Beam Characterization with the TOFs Mark Rayner Beam Characterization with TOFs

  2. Saturday 13th December Shift Beam Characterization with TOFs

  3. Pions from 13th December Beam Characterization with TOFs

  4. Positrons from 13th December Beam Characterization with TOFs

  5. Cable Length Calibration (0,1) Beam Characterization with TOFs

  6. Cable Length Calibration (0,0) Beam Characterization with TOFs

  7. Cable Length Calibration (1,0) Beam Characterization with TOFs

  8. Cable Length Calibration (1,1) Beam Characterization with TOFs

  9. p=30MeV/c Transverse momentum (MeV/c) TOF0—TOF1 ‘420MeV/c p+’ mainly pions amplitude 50.0 sigma 196ps mainly muons amplitude 15.2 sigma 157ps e+ calibration…Mean=8m/30cm ns – Dt various p, g>200, b=1 150ps resolution need timewalk correction (and more data!) Time of flight (ns) Beam Characterization with TOFs

  10. TOF & Momentum Beam Characterization with TOFs

  11. TOF0 dx/dz TOF0 dy/dz TOF0 y (mm) TOF0 x (mm) TOF1 dy/dz TOF1 dx/dz TOF1 x (mm) TOF1 y (mm) Pion trace space fits before amplitude cuts Beam Characterization with TOFs

  12. TOF0 dx/dz TOF0 dy/dz TOF0 y (mm) TOF0 x (mm) TOF1 dy/dz TOF1 dx/dz TOF1 x (mm) TOF1 y (mm) Muon trace space Beam Characterization with TOFs

  13. Work in Progress • Apply amplitude cut on calculation of e, a, b, g • Repeat process for muons • Attempt to narrow p and m time of flight peaks • Try to use both TOF0 planes • Add time-walk calibration • Error analysis • Monte Carlo to check decay kinematics • Take into account emittance growth in the Cherenkov Beam Characterization with TOFs

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