Infl12

From ATLAS Accelerator In-Flight Beam Program
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General Info

Secondary Beam(s)

  • 16m,gN7+
  • Energy: ~12 MeV/u
  • Requested rate and purity:
    • 2x105 pps, >50 %
  • Achieved rate (pps/pnA):
    • (XXX pps/pnA) [XXX pnA XXXXXX]
  • Purity:
    • XXX% best, XXX% typical

Tuning Info

Primary Beam (energy) [max pnA]

  • 15N?? [13.5 MeV/u, MeV][200 pnA]
  • Target: D2 Gas Cell cooled to 90K [1400 mb]
=========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...)
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