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Re: Cable
Hi Yves,
I am sending you another Interposer via FedX and you should have it
tomorrow. Let me know if that works.
Regards,
Fernando
Yves Van Haarlem wrote:
> Hi Fernando,
>
> I just tested the new cable and ... I still see the same dead channels
> (4 now). To be absolutely sure I hooked up the old CLAS preAMP again
> and I see signals in all channels. It is not the shaper, not the
> cable, and all the signals come off the HV board. So one item remains
> ==> the pre-amplifier+interposer. Is it possible to send one (if there
> is one available) to CMU so I could try it?
>
> Which cable would you like to have back: the old one or the one you
> just sent me?
>
> Cheers and thanks,
> 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 Wed, 2 Apr 2008, Fernando J. Barbosa wrote:
>
>> Hi Yves,
>>
>> Thanks. Just let me know if that solves the problem.
>>
>> Regards,
>> Fernando
>>
>>
>>
>>
>> Yves Van Haarlem wrote:
>>> Hi Fernando,
>>>
>>> The new cable just arrived, thanks!
>>>
>>> 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 Wed, 2 Apr 2008, Fernando J. Barbosa wrote:
>>>
>>>> Hi Elke,
>>>>
>>>> For tests without a magnet, there is the AGS test line at BNL.
>>>>
>>>> For tests with a magnet, you may want to check if the MPS area is
>>>> available at BNL (that's where E852 ran). Alex may have good
>>>> contacts there, also.
>>>>
>>>> Regards,
>>>> Fernando
>>>>
>>>> Elke-Caroline Aschenauer wrote:
>>>>> On Wed, 2 Apr 2008, Yves Van Haarlem wrote:
>>>>>
>>>>> Dear Yves,
>>>>>
>>>>> I think the question is what is the size of the prototype you want to
>>>>> build and what would you like to study. cosmic data in a magnetic
>>>>> field or
>>>>> beam on mini-cdc in B field, or ....
>>>>> Because if we want to match the situation of Gluex for different
>>>>> things we
>>>>> need different magnets.
>>>>> There was for example the offer to study something at Idaho
>>>>> Accelerator
>>>>> Center, but that needs more investigation.
>>>>>
>>>>> cheers elke
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>> Date: Wed, 2 Apr 2008 10:36:07 -0400 (EDT)
>>>>>> From: Yves Van Haarlem <yvhaarle@ernest.phys.cmu.edu>
>>>>>> To: Simon Taylor <staylor@jlab.org>
>>>>>> Cc: halld-tracking-hw@jlab.org
>>>>>> Subject: Re: New CDC prototypes
>>>>>>
>>>>>> Hi Simon,
>>>>>>
>>>>>> Thanks a lot for the info. Could you give more information or a
>>>>>> contact
>>>>>> person that might know more concerning this magnet?
>>>>>>
>>>>>> Thanks,
>>>>>> 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 Wed, 2 Apr 2008, Simon Taylor wrote:
>>>>>>
>>>>>>
>>>>>>> Hi, Yves.
>>>>>>>
>>>>>>> Regarding the availability of suitable magnets, the short answer
>>>>>>> is that it
>>>>>>> would be difficult to find any magnets with sufficient magnetic
>>>>>>> field or gap
>>>>>>> size or with the correct orientation for cosmic ray studies such
>>>>>>> that the
>>>>>>> magnetic field would be parallel to the straws. Certainly we
>>>>>>> came up with
>>>>>>> nothing truly suitable for studying the FDC. The magnet we used
>>>>>>> in Hall B has
>>>>>>> a gap of about 15 cm and goes up to ~1.2 Tesla. You could in
>>>>>>> principle fit a
>>>>>>> few layers of straws in there, but the magnetic field would be
>>>>>>> perpendicular
>>>>>>> to the wires, so that's no good. I have a vague recollection
>>>>>>> that there may
>>>>>>> be a magnet at Brookhaven that at least has a large enough gap
>>>>>>> size (48
>>>>>>> inches)...
>>>>>>>
>>>>>>> Simon
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> Yves Van Haarlem wrote:
>>>>>>>
>>>>>>>> Hi All,
>>>>>>>>
>>>>>>>> As you might know we plan to build one or more smaller
>>>>>>>> prototypes of the
>>>>>>>> CDC in order to test the straws in a test beam and magnetic
>>>>>>>> field. The
>>>>>>>> first thing I would like to pin down are the dimensions of this
>>>>>>>> new
>>>>>>>> prototype. In order to use it inside a magnet it has to fit
>>>>>>>> inside that
>>>>>>>> magnet (yes indeed). I understood from last review that a
>>>>>>>> magnet search was
>>>>>>>> performed for the FDC so I am hoping they could give me some
>>>>>>>> input on what
>>>>>>>> is available.
>>>>>>>>
>>>>>>>> Cheers and thanks,
>>>>>>>> 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
>>>>>>>> ~~ ~~ \-----------------------------------
>>>>>>>>
>>>>>>>
>>>>>
>>>>> ( `,_' )+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=
>>>>> ) `\ -
>>>>> / '. | +
>>>>> | `, Elke-Caroline Aschenauer =
>>>>> \,_ `-/ -
>>>>> ,&&&&&V Jefferson Lab +
>>>>> ,&&&&&&&&: HALL-D 12C / F381 121-A Atlantic Avenue =
>>>>> ,&&&&&&&&&&; Suite 8 Hampton, VA 23664 -
>>>>> | |&&&&&&&;\ 12000 Jefferson Ave +
>>>>> | | :_) _ Newport News, VA 23606 Tel.: 001-757-224-1216 =
>>>>> | | ;--' | Mail: elke@jlab.org Mobil: 001-757-256-5224 -
>>>>> '--' `-.--.
>>>>> | +
>>>>> \_ | |---' Tel.:
>>>>> 001-757-269-5352 =
>>>>> `-._\__/ Fax.:
>>>>> 001-757-269-6331 -
>>>>>
>>>>> +=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+
>>>>>
>>>>>
>>
begin:vcard
fn:Fernando J. Barbosa
n:Barbosa;Fernando J.
org:Jefferson Lab
adr:Suite #10, 12B3;;12000 Jefferson Ave.;Newport News;VA;23606;USA
tel;work:757-269-7433
version:2.1
end:vcard
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