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Re: New prototype + wiring test
Hi Everyone --
one of the next tasks is to try Slava's approach, but in fact
this was not difficult to connect the wires, and they are held
in place by the tension in the wires.
Curtis
On Wed December 17 2008, Fernando J. Barbosa wrote:
> Hi Yves,
>
> Beautiful signals indeed! The supply and grounding connections are close
> to the final configuration of the CDC and this is very good news.
>
> Another issue we need to consider is to change the cooling bracket.
> There are two options: have a copper piece that extends to the sides and
> attaches to the HVB with screws (two holes on the sides of the preamp
> area); have a copper piece that extends past the signal connector and
> HVB (could be used as a handle for installation/removal and could also
> be attached to two of the holes in the area of the signal cable). You
> need to consider what would be best for the final configuration of the CDC.
>
> Gary's new cable arrangement is also much cleaner and Slava's approach
> will make connecting the wires to the straws much easier.
>
> Great job!
>
> Regards,
> Fernando
>
>
>
>
> Yves Van Haarlem wrote:
> > Dear Collegues,
> >
> > Today we saw signals coming of the new prototype for the first time!
> > Pictures of the current setup can be viewed on:
> >
> > http://www.jlab.org/Hall-D/software/wiki/index.php/Pictures_of_the_prototype
> >
> >
> >
> >
> > Traces of the signals (cosmic ray and Fe-55 induced):
> >
> > http://www.jlab.org/Hall-D/software/wiki/index.php/First_signals
> >
> > I think that they look very nice. A lot more tests are forseen in 2009.
> >
> >
> >
> > Gary finished the prototype to do the wiring tests:
> >
> > http://www.jlab.org/Hall-D/software/wiki/index.php/Wiring_test
> >
> >
> > At the moment it looks much better than the wiring of the prototype.
> > We of course plan to extend the plates in order to simulate going in
> > with your arms to connect the wires. Next thing we plan after that is
> > testing Slava's approach. The distance between the plates is 4 inches,
> > the longest wire is 4.5 inches.
> >
> >
> > Cheers,
> > Yves
> >
> >
> >
> > /--------------------------------
> > / Yves Van Haarlem
> > _--~~--_ /
> > /~/_| |_\~\ / Carnegie Mellon University
> > |____________| / Department of Physics
> > |[][][][][][]|:= / Wean Hall room 8404
> > __| __ |__ \ Pittsburgh, PA 15213
> > | ||. | == | | \ USA
> > (| ||__| == | |) \
> > | |[] [] == | | \ Tel.: +1 412 268-6949
> > | |____________| | \ +1 412 641-9252
> > /__\ /__\ \ Fax.: +1 412 681-0648
> > ~~ ~~ \-----------------------------------
>
--
Professor Curtis A. Meyer Department of Physics
Phone: (412) 268-2745 Carnegie Mellon University
Fax: (412) 681-0648 Pittsburgh PA 15213-3890
cmeyer@ernest.phys.cmu.edu http://www.curtismeyer.com/