[Hps] SVT is at 0.5 mm and holding

[Marco Battaglieri]

Great news! thanks to whole HPS crew and JLab management that extended 
the run period allowing us to achieve this important step.
Cheers
Marco

Stepan Stepanyan wrote:
> Dear all,
>
> At 10pm today, May 12, we set both top and bottom SVTs at 0.5mm from the
> beam plane, after a carefully stepping in and out each individually and
> watching
> occupancies and currents. Occupancies and currents look just fine on
> both top
> and bottom Layer-1s (axial and stereo).
> Beam is stable (normal 4-5 trips/hour). We already took one run, 5623,
> with 69M
> events. The DAQ is 87% live, trigger rate is ~18.5kHz, 16kHz of which
> are Pair-1
> (or A') triggers. According to the monitoring recon the number of (+-)
> tracks went
> up by at least x3, with lot more 6 layer tracks.
>
> This is a great success! [even if we blew the SVT before you will read
> this email.]
> Congratulations HPS!
>
> Regards, Stepan
>
>
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