On Sun, 23 Jan 2000, Stephen Pordes wrote: > > > First a plea: We need to write and distribute by mail a brief summary of > what has been accomplished on each shift. It's good for us all. The > following may have big holes - which I trust people will fill. > > --------------------------------------------------------------------------- > Summary after first commissioning weekend 1/22 -> 1/23 > > We have just finished about 34 hours of commissioning with pbars. > Frankly, I am impressed in how good a shape we may be in. > > Of course, there were a lot of screw-ups (people (like me) leaving cables > unplugged) but in the end I think we made quite good progress: > > The pbar source delivered us a nice stack of 19 mA. > > The gas-jet worked just fine. > > We did a vertical scan and found a peak luminosity moving the beam about 1mm > up (I think "up") > > We did a horizontal scan looking at the left and right luminosity monitors; > this was inconclusive. Some work will be done rearranging the luminosity > monitor equipment upstairs. > > All the counters are timed, their gates and TDC stops and their HV set. > (EM correct me if I am wrong). There is some problem with one of the forward > vetos. (EM please expand). > > The charged trigger timing is done. There is a dead channel in an MLU and > the assignment of channel/trigger has changed to accomodate this. According > to RC, the new trigger module has also been checked out and timed. (We aren't > using it yet,however). > > The neutral trigger has been checked out and its stuff seems fine. There is > a plan to use the ring sum TDC's to check the CCAL timing into the trigger. > > CCAL and FCAL reported ADC's and TDC's. A few channels were missing and are > being investigated. > > The online monitor worked fine - I don't know the status of the scaler data > however. > > The offline also seems to work. > > We wrote some minimum bias tapes towards the end. > > After we had said we were done (to give time for VLPC work tonight) the > source people decelerated the beam to below the Chi-0 in about an hour > with a ~50% efficiency and cooled it "nicely" at the low point. > > An access to work on VLPC's, fix some calorimeter channels and other stuff > started at 20:40. > ---------------------------------------------------------------------------- > > Stephen