to add to my notes below,
nozzle chjamber pressure stayed in low e-8, so presumably cryo still on at
6000 A.
-- t
________________________________________________________________________________
Tancredi Botto, phone: +1-617-253-9204 mobile: +1-978-490-4124
research scientist MIT/Bates, 21 Manning Av Middleton MA, 01949
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
On Thu, 27 Nov 2003, Electronic Log Book wrote:
> Operators: seely yxiao ----
>
> until 8 pm continued on NC's, flasher runs (see logbook)
>
> We start taking beam. CCR tuning takes 1+ hrs, with final BQM norm rates
> of T=180, L=70, B= 77, R=45. Note: comunicating slit positions has little value.
> We want to minimize bqm rates !
> Left slit position found at +3 mm from -25, not typical (motor steps ??)
>
> AFter that realize no dcct. D-tunnel. Chase cables. The dcct has been disconnected at the rsb side of patch!!! Nothing I can do about it. So no charge
> measurament (including dead time).
>
> Try to take empty target runs anyways, with 2nd level trigger. Trigger may be
> fine but running very hard because of wch trips.
> On right, channels 5 of slots 3 and 7 (box R30), on left, channels 1,5 of slot 0 (sense wires). Disabling right channels works. It does not work on left...
>
> Also, beam background is very unstable. Beam rates come in splashes,
> with many wires tripping. Not going to be a good night for the chambers either.
> Maybe this is due to so and so vacuum. No beam data tonight.
>
> Yuan stays, he will work on ion pol neutron detectors, including hall
> access and if possible field off data.
>
>
>
>
>
>
>
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