My apologies: it turns out that again the unpol gas feed system
is disconnected from the storage cell. This problem definitely
affects gas runs of this weekend (singles, coincs) while
previous gas runs before the collimator went in seem fine (I've
checked aroun 2600's)
So no gas running tonight and it'll be difficult to fix this problem
tomorrow (the target is cold).
After measuring with a displaced beam (H, V - see jason) I suggest taking
some data with no slits at all, data at high current, empty tgt data with
transverse holding field on (requires beam tuning).
I believe that ca 200 C per set should be enough. count_charge.C is the
macro you need.
-- t
________________________________________________________________________________
Tancredi Botto, phone: +1-617-253-9204 mobile: +1-978-490-4124
research scientist MIT/Bates, 21 Manning Av Middleton MA, 01949
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