[Halld-tracking-hw] FDC meeting minutes posted

Fernando J. Barbosa barbosa at jlab.org
Fri Jul 15 14:04:36 EDT 2011


Hi Lubomir,

All  the HV caps inside and outside of the gas volume in the prototype 
chambers are covered with Humiseal - this is a requirement and I have 
mentioned this a number of times. For reference, GlueX-doc-1384 has the 
current draw per sense wire at 100 nA. Because bench tests are not 
representative of realistic chamber performance, I suggest using the 
Humiseal on the frames you just assembled and re-test them. I have 
tested the HV caps (including the ones for the FCAL CW bases) and they 
perform as well as the ones on the prototype - there are no better ones.

Regarding the naming convention, we will replace the comma with a dash 
(easier identification). Have you considered using preamp card location 
number instead of the actual wire or strip numbers? That would improve 
legibility of the label.

Best regards,
Fernando




Lubomir Pentchev wrote:
> The minutes of the last FDC meeting were posted at:
>
> http://www.jlab.org/Hall-D/software/wiki/index.php/Minutes-7-14-2011
>
> Regards,
>      Lubomir
>
> _______________________________________________
> Halld-tracking-hw mailing list
> Halld-tracking-hw at jlab.org
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