[Halld-tagger] Tagger hall plans

Alexander Somov somov at jlab.org
Thu Aug 21 15:15:51 EDT 2014


Thanks a lot Fernando,

Cheers,
        Alex


On Thu, 21 Aug 2014, Fernando J Barbosa wrote:

> Hi Alex,
>
> That requires 45 coax cables, 1 twisted-pair cable and the splitter box. I 
> don't believe we have that many spare coax cables but we can use the non-fire 
> rated coax cables from the old FCAL for tests in the ESB. So, no problem.
>
> Best regards,
> Fernando
>
>
>
> On 8/21/2014 12:31 PM, Alexander Somov wrote:
>> Hi Fernando,
>> 
>> Do we have spare cables to connect 15 channels ?
>> (F1TDC, fadc, and LE DSC can be placed in the same crate)
>> 
>> Thanks,
>>       Alex
>> 
>> 
>> 
>> On Thu, 21 Aug 2014, Richard Jones wrote:
>> 
>>> In his last message, Alex Somov wrote:
>>> 
>>> Richard should return the VXS crate, which we can install into the 
>>> existing
>>> rack in the ESB.
>>> 
>>> Will do. Can you provide us with enough lemo cables and a splitter to
>>> connect 15 outputs at a time to the crate, and read out both the fadc and
>>> tdc at the same time?
>>> 
>>> -Richard J.
>>> 
>>> 
>>> On Thu, Aug 21, 2014 at 11:08 AM, Alexander Somov <somov at jlab.org> wrote:
>>> 
>>>> 
>>>> Hi Fernando,
>>>> 
>>>> I tink that testing of TAGM should be done in the ESB. If the
>>>> detector components are here in the beginning of September,
>>>> it would take at least a week or two to assemble the TAGM. We
>>>> may consider to move the detector to the Hall just to check that
>>>> evrt fits and bring it back to the ESB.
>>>> 
>>>> Richard should return the VXS crate, which we can install into
>>>> the existing rack in the ESB. We'll need a control Wiener crate
>>>> and some spare cables to read out one or two fadcs.
>>>> 
>>>> Cheers,
>>>>        Alex
>>>> 
>>>> 
>>>> 
>>>> 
>>>> 
>>>> 
>>>> 
>>>> On Thu, 21 Aug 2014, Richard Jones wrote:
>>>>
>>>>  Fernando,
>>>>> 
>>>>> I am going to propose that we set things up in the ESB area when we
>>>>> arrive,
>>>>> and do what setup and testing we can there prior to the move-in date in
>>>>> the
>>>>> first week of October or thereabouts.  Any objections?
>>>>> 
>>>>> -Richard Jones
>>>>> 
>>>>> 
>>>>> On Thu, Aug 21, 2014 at 10:03 AM, Fernando J Barbosa <barbosa at jlab.org>
>>>>> wrote:
>>>>>
>>>>>  Hi Richard, Alex,
>>>>>> 
>>>>>> We will start removing the electronics from the tagger hall on 22 Sept
>>>>>> 2014 in preparation for beam on 29 Sept 2014. All the cables will be
>>>>>> disconnected from the modules but remain in place with the mini-racks; 
>>>>>> we
>>>>>> then remove the crates/chassis with the modules and move them to a safe
>>>>>> place, probably the ESB.
>>>>>> 
>>>>>> You have indicated that you will be bringing the TAGM to JLab during 
>>>>>> the
>>>>>> week of 9/1. In view of this, you only have two weeks (weeks of 9/8 and
>>>>>> 9/15) to install, connect and test the TAGM. Is this enough time to do
>>>>>> any
>>>>>> significant work (setup software, controls, readout, etc)? Or should we
>>>>>> plan to work in the ESB, which allows limited testing (limited number 
>>>>>> of
>>>>>> cables, no 208V for the crates so power is an issue anywhere outside of
>>>>>> the
>>>>>> tagger hall)?
>>>>>> 
>>>>>> Please work out a viable plan and let me know ASAP. If we are not going
>>>>>> to
>>>>>> do anything in the tagger hall, we could go ahead and start removing 
>>>>>> the
>>>>>> electronics earlier so we are not rushing later.
>>>>>> 
>>>>>> Best regards,
>>>>>> Fernando
>>>>>> 
>>>>>> 
>>>>> 
>>> 
>
>


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