> trigger 7, despite being prescaled by 1000, dominates.
I don't know if this is true. Thought the prescale factor was set to 1000 as
stated in elog during the beam tuning, it was changed back to 3 at the end of
shift C to check its effect to singles trigger. I am not sure wheater Eugene or
Michael changed it back to 1000 during data taking.
Yuan
>
> On Sun, 27 Feb 2005, Michael Kohl wrote:
>
> > We are going to take data with zero BLAST field with ABS D2 (32deg).
> > After end of run 13842, Larry Longcoy starts to tune the beam with BLAST
> > off, at first with BQMs only. When BQMs are low, the Wch are turned on and
> > the tune is refined with help of the Wch scalers. We will start at
> > currents 50-100mA and see gradually how high we can get with regard to
> > Wch tripping, Wch S/N and overall rates.
> >
> > Plan is to take zero-field data with ABS-D2 until Monday morning.
> >
> > Regards,
> >
> > Michael
> >
> >
> >
> >
> > --
> >
> > +-------------------------------------+--------------------------+
> > | Office: | Home: |
> > |-------------------------------------|--------------------------|
> > | Dr. Michael Kohl | Michael Kohl |
> > | Laboratory for Nuclear Science | 5 Ibbetson Street |
> > | MIT-Bates Linear Accelerator Center | Somerville, MA 02143 |
> > | Middleton, MA 01949 | U.S.A. |
> > | U.S.A. | |
> > | - - - - - - - - - - - - | - - - - - - - - -|
> > | Email: kohlm@mit.edu | K.Michael.Kohl@gmx.de |
> > | Work: +1-617-253-9207 | Home: +1-617-629-3147 |
> > | Fax: +1-617-253-9599 | Mobile: +1-978-580-4190 |
> > | http://blast.lns.mit.edu | |
> > +-------------------------------------+--------------------------+
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
>
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