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Re: CDC prototype
1pm is fine for Curtis, Gary and me.
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
~~ ~~ \-----------------------------------
On Tue, 4 Nov 2008, Tim Whitlatch wrote:
> I apologize. As it turns out, I have Dry runs for Tagger review in the
> morning. How about 1pm on Friday instead?
>
> Tim
>
> Curtis A. Meyer wrote:
>
> Friday at 10:00 works for Curtis as well -- Curtis
> On Tue November 4 2008, Yves Van Haarlem wrote:
>
>
> Hi Tim,
>
> Friday 10am is good for both Gary and me. I believe it might be a problem
> for Curtis as he teaches on Friday mornings if I am not mistaken.
>
> 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
> ~~ ~~ \-----------------------------------
>
> On Tue, 4 Nov 2008, Tim Whitlatch wrote:
>
>
>
> Thanks Yves,
>
> We can discuss some of the ideas maybe later in the week. Are you, Gary and
> Curtis available Friday 10am?
>
> Tim
>
> Yves Van Haarlem wrote:
>
>
> Hi All,
>
> I had some discussion with Gary and I can list some things we learned by
> wiring up this prototype:
>
> - The teflon wires are very stiff and difficult to handle, all the wires
> have the same length at the moment - it would make things easier if all
> wires have different lengths dependent on the distance: connector-wire.
> --> use different cable?
>
>
> - It would be good to glue the pin in the pinholder (add one drip of glue)
> after stringing the wires. In this way it is not so easy to break a wire if
> something goes wrong with connecting the cables to it. We plan to do this
> in the future.
>
>
> - Due to the fact that 8 straws are not read out (the preamp now has only
> 16 channels) the mapping is messed up (those 8 straws have to be on the
> edges) - this did not make things easier.
>
>
> Overall it was not easy to cable those straws up and more thinking is
> needed. We also plan on building a model to test more possibilies. Our
> priority at the moment is to finish the new prototype first.
>
>
> 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
> ~~ ~~ \-----------------------------------
>
> On Fri, 31 Oct 2008, Yves Van Haarlem wrote:
>
>
>
> Hi Tim,
>
> I believe not - but I am not 100% sure - we plan to build something larger
> to simulate the real situation.
>
> 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
> ~~ ~~ \-----------------------------------
>
> On Fri, 31 Oct 2008, Tim Whitlatch wrote:
>
>
>
> Thanks Yves,
>
> In the pictures it looks like the conductive rubber sleeves are highly
> strained. Also, was all the wiring done from 1 side to simulate the
> actual situation?
>
> Thanks,
>
> Tim
>
> Yves Van Haarlem wrote:
>
>
> Hi Tim,
>
> Unfortunately Gary is sick at the moment and I was not here when the
> wiring was done. But this is what I know:
>
>
>
> How did the wiring to the crimp pins go?
>
>
> It was a bit painful because of a weird mapping: 8 channels will not be
> read out at first - so those had to go to the edges. We used Teflon
> cables because those are better protected for soldering but they are
> stiffer. The cables all have the same length and there is discussion to
> make the lengths variable.
>
>
>
> What order was the assembly done in (wires soldered to connector first?
>
>
> First the connector is made gas tight. Then the wires are soldered to it
> and marked plus the conductive booties are attached to the cables. I
> believe then the connector is screwed on the end plenum and the wires
> are moves over the crimp pins.
>
>
>
> then connector secured and then wires connected to crimp pins)? How
> much sca for doing this between plexiglass and crimp pins?
>
>
> The thickness of the end plenum is 2 inch, the length of the cables is 3
> inch - they could have been shorter if not for this weird mapping.
>
> We believe that this method is not the perfect one and should be
> improved. As soon Gary is here we have more info.
>
> Cheers,
> Yves
>
>
>
>
> Thanks,
>
> Tim
>
>
>
>
>