[Halld-tagger] request for patch panel from collimator cave

[Fernando J Barbosa]

Hi Eugene,

OK, I will take this responsibility and as I had on my ETC. However, I 
insist that I must have a specifications sheet on the electronics prior 
to the start of this project. This must be one milestone set early in 
the project.

Alex, please add a Specifications for Electronics milestone to the SOW.

Best regards,
Fernando





On 11/6/2012 11:02 AM, Eugene Chudakov wrote:
> Hi,
>
> I suggest that JLab procures the electronics and mounts the SiPMs.
> JLab will test the SiPMs and the boards for the SiPMs, before
> mounting.  The latter test will be very basic, providing the power and
> electrical input signals and checking the output signals. The
> populated boards (and the other boards) will be sent to UConn for
> testing.
>
> Regards,
> Eugene
>
> ------------------------------------------------------
> Eugene Chudakov
> phone (757) 269 6959  fax (757) 269 6331
> Thomas Jefferson National Accelerator Facility
> 12000 Jefferson Ave,
> Postal Suite 16,
> Newport News, VA 23606 USA
>
> On Tue, 6 Nov 2012, Richard Jones wrote:
>
>> Hi Fernando,
>>
>> I don't know where this request should be routed, so I am sending it 
>> directly to you.  I would like to make sure that we have coaxial 
>> connections from the upstream wall of the collimator cave to the 
>> counting house.  Here are some signals that we would like to be able 
>> to read directly, and minimize how much DAq electronics we need to 
>> place in a hot radiation area.
>>
>> 1. output signals from the active collimator: 8
>> 2. cave background rate monitor scintillators: 2-4
>>
>> A panel of 16 or 24 would be sufficient, I believe.  There are also 
>> controls for the collimator translation stage and associated limit 
>> switches.  Further downstream there is the converter target ladder, 
>> which may be inside the cave or outside, depending on the ability to 
>> shield the stray magnetic field from the pair spectrometer.  I just 
>> want to make sure we have cables and cable trays for these 
>> interconnects, as it may be difficult to add them later.
>>
>> -Richard Jones
>>
>>

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