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Re: Interposer



Hi Yves,

Please send them to me at:

Fernando J. Barbosa
Jefferson Lab
Suite #10, 12B3
12000 Jefferson Ave.
Newport News, VA 23606

Thanks,
Fernando

Yves Van Haarlem wrote:
> Hi Fernando,
>
> OK - i will send them overnight today. Do I send them to Lorelei? (If 
> not please provide me with another address)
>
> 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, 4 Apr 2008, Fernando J. Barbosa wrote:
>
>> Hi Yves,
>>
>> That's great news. Please send me your preamp, the bad interposer and 
>> the cable (the one I just sent you). I will have the preamp back to 
>> you ASAP. I f I have it on Monday, I will try to have it to you by 
>> Tuesday.
>>
>> Let me know if this does not work.
>>
>> Regards,
>> Fernando
>>
>>
>>
>>
>> Yves Van Haarlem wrote:
>>> Hi Fernando,
>>>
>>> I recieved the new interposer, thanks a lot. I tested it and behold: 
>>> channels 2,3, and 4 are working again! BUT channel 16 is still dead. 
>>> Maybe it's the pre-amplifier as this is the only piece since I saw 
>>> these dead channels that wasn't changed. For completeness if the old 
>>> CLAS preAmp is used then all 16 channels are alive.
>>>
>>> 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,
>>>>
>>>> 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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