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Re: CDC prototype
Great! See you then!
Tim
Yves Van Haarlem wrote:
> 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
>>
>>
>>
>>
>>
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fn:Timothy Whitlatch, PE
n:Whitlatch;Timothy
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