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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                              -
>>>>>             
>>>>> +=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+
>>>>>
>>>>>
>>
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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