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Re: Interposer
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 -
>>>>>>>
>>>>>>> +=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+
>>>>>>>
>>>>>>>
>>>>
>>
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
- References:
- Re: Cable
- From: Yves Van Haarlem <yvhaarle@ernest.phys.cmu.edu>
- Re: Cable
- From: "Fernando J. Barbosa" <barbosa@jlab.org>
- Interposer
- From: Yves Van Haarlem <yvhaarle@ernest.phys.cmu.edu>