Infl11

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General Info

Secondary Beam(s)

  • 29Al13+
  • Energy: ~10 MeV/u
  • Requested rate and purity:
    • 1x104 pps, >10 %
  • Achieved rate (pps/pnA):
    • [cross] (141 pps/pnA) [120 pnA 30Si14+]
    • [target] (75 pps/pnA) [120 pnA 30Si14+]
  • Purity:
    • 4% best, 4% typical

Tuning Info

Primary Beam (energy) [max pnA]

  • 30Si7+,14+ [11.5 MeV/u, 345 MeV][120 pnA]
  • Target: 4 mg/cm2 Be (29Al13+)
=========29Al===========

29Al - 4 mg/cm2 Be target

Beam Label Energy [MeV] Brho [Tm] calc / TOF Scale Factor DE-E (50 / 1000 um) q-Fraction Target
30Si7+,14+ primary 345 XXX calc 71 / 273 MeV none
30Si14+ degraded 319.8 1.009 tof 76 / 244 MeV 4 mg/cm2 Be
29Al13+ secondary 307.4 1.04767 calc 3.8% 66 / 241 MeV 4 mg/cm2 Be
30Si13+ contam 297 1.04767 calc 80 / 217 MeV 4 mg/cm2 Be
  • Scale Factor:
    • [June 19] 29Al13+ [307.4 MeV] from 30Si14+ [319.8 MeV] scale factor = 1.04767/1.009 = 1.038
  • Expected calculated rates for tuning (acceptable - ideal):
    • At EXIT Detector: >250-1000 pps/pnA (midplane slits set to ~+-4 mm, ~3% momentum acceptance).
    • At HELIOS Cross Detector: >70-250 pps/pnA (assumes ~25% transmission, maybe on the high side...)