Overall trigger timing

Below is my current understanding of the trigger timing for the BCAL test:

Time	What	Comment
0 ns	electron hits tagger foil
120 ns	photon hits BCAL	BCAL is a few feet upstream of alcove
220 ns	BCAL PMT signals reach discriminators	20 ns in PMT plus 80 ns cable
250 ns	discriminator sum outputs available	30 ns a guess, but must be delayed before final AND in any case
310 ns	Tagger MOR reaches final AND logic
310 ns	discriminator sums reach final AND
325 ns	result of final AND reaches trigger supervisor
370 ns	internal trigger supervisor
385 ns	gate reaches ADC crate