Hi Michael-
I am pretty sure that we removed the attenuators at the detectors
(i.e. the one linking the short f.o. cable to the long f.o. cable).
Anyway, I am on graveyard shift Mon-Wed next week - I take it, one of
those days the hall will be open and we can make sure?
Pete
On Wed, 1 Dec 2004, Michael Kohl wrote:
> Hi Pete,
>
> is the voltage increase an attempt to increase the efficiency of LT9B
> based on a too weak raw signal *after* checking at the detector *and* in
> the Dtunnel? (It could also be a bad BNC connector!)
> The flasher for LT9 still looks fine, and also the ADC spectrum of
> LT9B does not look too bad either. It could also be a bad channel on the
> analog splitter or a bad lemo of the coax ribbon towards the
> discriminator or the discriminator channel itself.
>
> The flasher RT6 seems indeed dead, in addition LT3 and RT5,7,11
> inefficient (raw_tof_flasher_with_beam.C). However, there are only
> attenuators at the flasher splitter panel for channels RT5 and RT11
> available, all other attenuators have been removed according to my elog
> message 23377. There might be attenuators at the joints to the detector
> though, best time to check this is the next maintenance day.
>
> Regards,
>
> Michael
>
>
> On Mon, 29 Nov 2004, Peter Karpius wrote:
>
> > Hi Shift Takers-
> >
> > If you reboot the HVGUI, please set LTOF9B to -2400V. This has
> > not been written to the database since it is still under investigation.
> >
> > Thanks,
> > Pete
> >
> > ----------------------------------------------
> > Pete Karpius
> > Graduate Research Assistant
> > Nuclear Physics Group
> > University of New Hampshire
> > phone: (603)978-6152
> > FAX: (603)862-2998
> > email: karpiusp@einstein.unh.edu
> > http://pubpages.unh.edu/~pkarpius/homepage.htm
> > ----------------------------------------------
> >
> >
>
> --
>
> +-------------------------------------+--------------------------+
> | Office: | Home: |
> |-------------------------------------|--------------------------|
> | Dr. Michael Kohl | Michael Kohl |
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> | Middleton, MA 01949 | U.S.A. |
> | U.S.A. | |
> | - - - - - - - - - - - - | - - - - - - - - -|
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> | http://blast.lns.mit.edu | |
> +-------------------------------------+--------------------------+
>
>
>
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>
>
>
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>
>
>
>
----------------------------------------------
Pete Karpius
Graduate Research Assistant
Nuclear Physics Group
University of New Hampshire
phone: (603)978-6152
FAX: (603)862-2998
email: karpiusp@einstein.unh.edu
http://pubpages.unh.edu/~pkarpius/homepage.htm
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