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ISIS beam to MICE: ICOOL simulation

ISIS beam to MICE: ICOOL simulation. M. Apollonio – University of Oxford. two beams from Kevin T. ( Turtle /Transport) (sept 2006): ~2900 muons <P> ~ 206 MeV/c, s (P z )/P z ~0.7% Initial emi = 6.5 mm rad (2006): ~5140 muons <P> ~ 209 MeV/c , s (P z )/P z ~ 5%

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ISIS beam to MICE: ICOOL simulation

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  1. ISIS beam to MICE: ICOOL simulation M. Apollonio – University of Oxford CM17 -CERN- (22/2/-25/2/2007)

  2. two beams from Kevin T. (Turtle/Transport) • (sept 2006): • ~2900 muons • <P> ~ 206 MeV/c, s(Pz)/Pz ~0.7% • Initial emi = 6.5 mm rad • (2006): • ~5140 muons • <P> ~ 209 MeV/c , s(Pz)/Pz~ 5% • Initial emi = 7.5 mm rad • one beam from Kenny W. (G4BeamLine) • (2006): • ~ 1900 muons • <Pz> ~210 MeV/c • Initial emi ~ 6 mm rad • propagate through the channel and study emittance, momentumrecovery, optics (beta, alpha) and transmission Beam transported after the diffuser to Z=-5.201m (i.e. ~centre of 1st tracker) Beam transported after the diffuser to Z=-4650m CM17 -CERN- (22/2/-25/2/2007)

  3. s (Pz) ~ 3.8 MeV/c Pz (MeV/c) s (P) ~ 1.4 MeV/c Px (MeV/c) Py (MeV/c) P (MeV/c) s (Px,Py) ~ 30 MeV/c KT – narrow beam CM17 -CERN- (22/2/-25/2/2007)

  4. s (x,y) ~ 3.5 cm x (m) Y (m) y (m) x (m) x (m) CM17 -CERN- (22/2/-25/2/2007)

  5. s (Pz) ~ 12 MeV/c Pz (MeV/c) s (P) ~ 12 MeV/c Px (MeV/c) Py (MeV/c) P (MeV/c) s (Px,Py) ~ 31 MeV/c KT – broad beam CM17 -CERN- (22/2/-25/2/2007)

  6. s (x,y) ~ 3.5 cm x (m) Y (m) y (m) x (m) x (m) CM17 -CERN- (22/2/-25/2/2007)

  7. Z=-5.201 m (Turtle) Turtle or G4BL sim ICOOL sim Z=- 4650 m (G4BL) diffuser Z=-6.010 CM17 -CERN- (22/2/-25/2/2007)

  8. KT – narrow beam CM17 -CERN- (22/2/-25/2/2007)

  9. KT – narrow beam BZ (T) ICOOL start diffuser <Pz> (GeV/c) Dp/p ~ -6% e (m rad) De/e ~ -13% CM17 -CERN- (22/2/-25/2/2007) Z (m)

  10. small matching problem T ~ 98% b (m) KT – narrow beam a CM17 -CERN- (22/2/-25/2/2007) Z (m)

  11. KT – broad beam CM17 -CERN- (22/2/-25/2/2007)

  12. BZ (T) KT – broad beam <Pz> (MeV/c) Dp/p ~ -6% e (m rad) De/e ~ -14% CM17 -CERN- (22/2/-25/2/2007) Z (m)

  13. T ~ 96% b (m) KT – broad beam a CM17 -CERN- (22/2/-25/2/2007) Z (m)

  14. expected cooling in LH De/e=Dp/p*(1-eeq/e) eeq (LH)= 1.68 mm CM17 -CERN- (22/2/-25/2/2007) e (cm rad)

  15. KW – G4 beam CM17 -CERN- (22/2/-25/2/2007)

  16. ? CM17 -CERN- (22/2/-25/2/2007)

  17. P-recovery cooling optics transmission KT turtle narrow OK OK b 98 % broad OK OK b 96 % KW G4BL So so … BAD b 37% Conclusions Need more investigation CM17 -CERN- (22/2/-25/2/2007)

  18. -- END -- CM17 -CERN- (22/2/-25/2/2007)

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