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

[Alexander Somov]

Hello all,

Ok, it seems that we have decided on this responsibility. I will correct 
all PR documents accordingly.

Thanks,
        Alex



On Tue, 6 Nov 2012, Fernando J Barbosa wrote:

> 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
>>> 
>>> 
>
>