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Re: CDC prototype
At JLAB, the meeting room is ARC rm 428, 1pm. See you there.
Tim
Fernando J. Barbosa wrote:
> Hi Tim,
>
> Where is the meeting taking place?
>
> Thanks,
> Fernando
>
> Tim Whitlatch wrote:
>> 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
>>>>
>>>>
>>>>
>>>>
>>>>
begin:vcard
fn:Timothy Whitlatch, PE
n:Whitlatch;Timothy
tel;work:757-269-5087
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