> I would like to point out that with the current set up of ntuples, it
> seems not possible to use TOF/CC cuts on NC data vice versa.
that is true for the "raw" ntuples but it's not the case for the eep
ntuple, where we have NC fields. At the last meeting we decided to
just skip the whole ntuple tree discussion for now.
-- t
________________________________________________________________________________
Tancredi Botto, phone: +1-617-253-9204 mobile: +1-978-490-4124
research scientist MIT/Bates, 21 Manning Av Middleton MA, 01949
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
On Fri, 8 Nov 2002, zhangchi wrote:
>
> Hi all
>
> As of the time I left BATES. network was still not recovered. I collected
> things I remember and give this brief shift summary.
>
> Data were taken with NC_CC_TOF_1300.sql, *****_last8.settings.
>
> However, starting from run 2657, started at 23:57 Nov, 7, TOF 0-7 left had
> very few events. visual_scal showed normal rates, however plot_tdc.C,
> show_tdc.C shows very few hits, show_protons.C could only count events
> for right_0-4 in coinc with left 11-15 combination, not the other way
> arround. We made a trip to D-tunnel around 4 am, could not find obvious
> hanging cables or extremely obvious electronics problem, and we decide it
> is out of our capability to debug the problem.
>
> Runs are taken with gas flow 0.5, 0.4, 0.3, 0.2, 0.1 sccm, then chamber HV
> were turned off. gas flow increased to 1sccm, HV increased to
> NC_CC_TOF_1300_10percent.sql. But all these are without good left TOF0-7
> data.
>
> At 4:40am, cooling water spilled in the attic, blast power supply was shut
> down by CCR. There was a ring RF tripping too. gas flow was turned to 0, HV
> put to standby and we did not have beam for the rest of the shift.
>
> We could not browse the web either, too bad.
>
> Software: Ben copied his show_tdc.C to phase2 to complete the adc/tdc
> plotting functionalities. segements of show_tdc.C and show_adc.C are
> pasted into show_tdc_nc.C and show_adc_nc2.C. With trivial changes, these
> two plots NC tdc/adc.
>
> I would like to point out that with the current set up of ntuples, it
> seems not possible to use TOF/CC cuts on NC data vice versa.
>
> Ben and Chi
>
>
>
>
>
This archive was generated by hypermail 2.1.2 : Mon Feb 24 2014 - 14:07:28 EST