[Clas12_rich] RICH assembly

Walt Akers / JLAB akers at jlab.org
Fri Jul 22 11:05:26 EDT 2016


Thanks Stepan...

Marco - please proceed with confidence.

Walt

Stepan Stepanyan wrote:
> Dear Walt,
>
> According to our current schedule CLAS12 drift chambers that occupy 
> most of space in the
> clean room must be installed in the hall. The only thing will be 
> remain there is SVT. SVT does
> not take much space and it can be moved around if needed.
>
> Regards, Stepan
>
> On 7/21/16 3:58 PM, Walt Akers / JLAB wrote:
>> Dear Volker, Stepan and Mac:
>>
>> As Marco mentions below, we are approaching the time for the
>> RICH detector work to begin in EEL 124. I've included an excerpt
>> from the work plan here.
>>
>>     *RICH detector assembly October 2016 to July 2017*
>>     The assembly of the detector will begin in the EEL-124 clean room
>>     in October
>>     2016. The project team has requested an area of 36’ x 36’. This
>>     large area is
>>     required also to perform the alignment of the mirrors inside the
>>     detector. The area
>>     must be quipped with a 2 ton crane capacity and possibly a
>>     forklift for the
>>     movement and installation of the various components.
>>     The assembly of the RICH will be performed by using a special
>>     mechanical
>>     structure, anchored on the floor, on which the various components
>>     will be
>>     mounted. The assembly structure is equipped with a winch to
>>     rotate the RICH
>>     from the vertical assembly position to the horizontal one ready
>>     for the
>>     transportation inside the Hall B.
>>     The assembly procedures will also include the check of the
>>     alignment of the
>>     mirrors once they are installed and the survey of the RICH
>>     module. For these
>>     operations, the support of the JLab survey group is requested.
>>
>>
>> Are your folks nearing completion of their work in the room and how
>> soon might it be available for the RICH folks to begin?
>>
>> Thanks,
>>
>> Walt
>>
>>
>> Marco Mirazita wrote:
>>> Dear Walt,
>>> even if with some delay, the construction of the RICH is almost done 
>>> and we should be able to ship by sea during this summer.
>>> It means that most likely in September all the material should be 
>>> stored in the CMSA.
>>> According to the last RICH installation plan we discussed, the 
>>> assembly work should start in October. Could you please confirm that 
>>> the area we need in the EEL124 clean room will be made free?
>>> Thanks,
>>> Marco
>>>
>>
>




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