Hi, Doug!
> If there is a problem with some component please phone the expert.
> As it is all the runs with bad signal to noise probably can not be analysed.
Pete and I took over from Wang and since they were running like that (he
had been on shift with Tong, a WC expert) we assumed it was not too bad.
We did turn the WC HV off for about an hour, as suggested by Wang.
OK, next time we feel something is not right with the WC we will call you,
tonight we thought the situation had been evaluated and deemed OK...
Adrian and Pete
> --On Monday, May 26, 2003 8:05 AM -0400 Adrian T Sindile
> <asindile@cisunix.unh.edu> wrote:
>
> > At the beginning of the shift Wang mentioned to us that the signal/noise
> > ratio was not very good in the right sector WCs and we should take a break
> > at some point for about an hour (WC HV off) if it would get worse.
> > We took runs 551, 552, 553, 554, 555, 556 and at about 5 AM we stopped
> > running as the signal/noise was getting worse (it seemed)...
> > (Around 4:40 AM blast05 froze, creating problems with the network. We
> > rebooted it, as we did dblast09).
> >
> > We crunched ntuples for all the above runs.
> > 6 AM - CODA hung once, restarted with no problems.
> > Took run 558, signal/noise in the right WCs did not improve. Same true for
> > run 559...
> >
> > I modified the "BLAST_physics" MySQL database to include the recent
> > Cerenkov HV information, as provided by Tavi after gain-matching.
> > I also included the recent WC electronics.map modifications mentioned by
> > Aaron in a previous email.
> > Just as a minor point, we should migrate as quickly and as completely as
> > possible to the "BLAST_physics" database, so that we do not have
> > uncorrelated information (it is just like doing stuff twice). For
> > example, if Tavi uses the old HV daemon to gain-match CCs, that daemon
> > uses the old "BlastTest" database. If Adam and people on shift use the HV
> > GUI as we have it now, that GUI accesses the intermediary "BLASTwc"
> > database. Any modifications have to be made at least twice... of course I
> > am aware that programs still need to be tested etc. - just trying to
> > point out that the sooner we move to the new database the better.
> >
> > Adrian and Pete
> >
> > -------------------------------
> > Adrian Sindile
> > Research Assistant
> > Nuclear Physics Group
> > University of New Hampshire
> > phone: (603)862-1691
> > FAX: (603)862-2998
> > email: asindile@alberti.unh.edu
> > http://einstein.unh.edu/~adrian/
> >
>
>
>
> Cheers,
> Douglas
>
> 26-415 M.I.T. Tel: +1 617 258 7199
> 77 Massachusetts Avenue Fax: +1 617 258 5440
> Cambridge, MA 02139, USA E-mail: hasell@mit.edu
>
This archive was generated by hypermail 2.1.2 : Mon Feb 24 2014 - 14:07:29 EST