{HEAD ~ Ions} are gated out of the linear trap 30 into an electrostatic ion trap 130 and are detected by {TAIL ~ a secondary electron} multiplier 10 
are detected by
{ HEAD ~ Ions } are gated out of the linear trap 30 into an electrostatic ion trap 130 and are detected by { TAIL ~ a secondary electron } multiplier 10
HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH