About 6E02-1

Subject: About 6E02-1
Roberto.Giuliani@lngs.infn.it
Date: Fri Feb 04 2000 - 07:29:34 EST

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  Hi All,
Today we stopped RUN 19046 in order to adjust the 6E02-1 gain.
I increased the PMT voltage by -15 V.
Before this operation the PMT was set at -1260.
The new voltage value for this PMT is -1275 V.
 

Previous mail about 6E02

> Today me and Massimo fixed 6E02-1.
>
> On 19-Jan-2000 6E02-1 was opened for BAD PMT behaviour.
> The run 18940 was stopped for calibration and to turn off 6E02
>
> The PMT installed wasn't good.
>
> 6E02 started flashing so it was turned off sincce run 18945.
>
> First of all we checked for HV problem but swapping the LeCroy channel the PMT
> signal remained bad.
>
> On 2-FEB-2000 we replaced both PMT and base.
> Now it is in acquisition starting from run 19038
>
> Ciao
                                                    Dikra,
                                                    Abdeslem,
                                                    Roberto.

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