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General Info

• ^16m,gN(d,³He)
• [October 19]
• ^16m,gN⁷⁺ @ ~12 MeV/u
• Location in in-flight ELOG
• @ HOMEPLATE and SHORTSTOP

Secondary Beam(s)

• ^16m,gN⁷⁺
• Energy: ~12 MeV/u
• Requested rate and purity:
  • 2x10⁵ pps, >50 %
  • Isomer rate >5x10⁴ pps

• Achieved rate (pps/pnA):
  • (1650-2000 pps/pnA) [150 pnA ¹⁵N⁶⁺]

• Purity:
  • 50% best, 10-20% typical

Tuning Info

Primary Beam (energy) [max pnA]

• ¹⁵N⁶⁺ [13.5 MeV/u, MeV][150 pnA]

• Target: D₂ Gas Cell cooled to 90K [1400 mb]

=========^16m,gN===========

^16m,gN - 37 mm D₂ gas target

Beam	Label	Energy [MeV]	Brho [Tm]	calc / TOF	Scale Factor	DE-E (50 / 1000 um)	q-Fraction	Target
15N7+	primary	202.5	1.13738	calc		16/186 MeV		none
15N7+	degraded	192.4	1.1086	calc	0.975	17/176 MeV	99%	D gass
16N7+	secondary	190	1.1366	calc	2.5%	18/172 MeV	99%	D gass
15N6+	contam	150	1.1366	calc		21/128 MeV	1%	D gas

• Scale Factor:
  • [Oct 19] ¹⁶N⁷⁺ [190 MeV] from ¹⁵N⁷⁺ [192.4 MeV] scale factor = 1.1366/1.1086 = 1.025

• Expected calculated rates for tuning (acceptable - ideal):
  • At EXIT Detector: > pps/pnA (midplane slits set to ~+-4 mm, ~3% momentum acceptance).
  • At HELIOS Cross Detector: > pps/pnA (assumes ~25% transmission, maybe on the high side...)