[Clas12_rich] EEL 124 layout for RICH assembly

Walt Akers / JLAB akers at jlab.org
Wed Aug 10 10:32:26 EDT 2016


Thanks Marco:

I'll will send the actually measurements of all doors today.

Walt

Marco Mirazita wrote:
> Dear Walt,
> thank you for your video, I would make few remarks on it.
> - We will ship the RICH components dismounted and the detector 
> assembly (including the supporting structure) will be done inside the 
> clean room. You can see the assembly sequence as we have in mind at 
> this moment here:
> https://clasweb.jlab.org/wiki/images/5/58/RICH-ERR_mirazita.pdf
> Thus, we should look at RICH we see moving inside the room after 4m40s 
> of your video as the end of the story, when the RICH will move 
> backward to go out of the room.
> - For this reason, I don't see any problem with entering the material 
> inside the room
> - According to a drawing of the EEL124 we received, the second door is 
> something more than 17 feet wide, i.e. more than 5m. It is enough for 
> exiting the RICH. I don't know the width of the first door, please let 
> us know if it is smaller than the second.
> - Since the beginning of our discussion on the RICH assembly, we 
> always thought our area would have been on the back of the clean room. 
> Now in your video it seems that we should use the front of the room. I 
> don't see any problem with this.
>
> Best regards,
> Marco
>
>
>
> Il 2016-08-08 17:42 Walt Akers / JLAB ha scritto:
>> So... just for clarification.  Is there a reason why entering through
>> the backdoor of the cleanroom is preferred.  I only ask because using
>> that entrance actually forces us to leave much space unused in the front
>> of EEL 125 in order to accommodate the movement of material in and
>> out.  This would impact the overall usability of both rooms for more
>> than 6 months.
>>
>> Thanks for the information,
>>
>> Walt
>>
>>
>>
>> Tyler Lemon wrote:
>>> Dear Marco Contalbrigo and Marco Mirazita,
>>>
>>> We have looked at the video that Walt sent this weekend and have a 
>>> few questions and comments. Attached is a screen shot of the final 
>>> EEL 124 layout for reference.
>>>
>>> From Walt's video and schedule, we would have to wait until at least 
>>> mid-January to begin RICH assembly because of SVT and MicroMegas 
>>> movement. It would be nice if the Forward Tagger could move to a 
>>> different area of EEL 125 (maybe the corner where the HPS equipment 
>>> is) because this would free up the back roll-up door and allow the 
>>> SVT and MicroMegas to enter the clean room through that door. This 
>>> in turn would allow RICH to independently be assembled  regardless 
>>> of SVT and MicroMegas movements. For this to happen, could the HPS 
>>> equipment move to a different location and could the Forward Tagger 
>>> be moved to a different area of EEL 125? Amanda has contacted Marco 
>>> Battaglieri regarding the Forward Tagger to see if it can be moved.
>>>
>>> Also just for information, the door that the assembled RICH would go 
>>> through is 15.75 feet wide. Would this be adequate space for RICH to 
>>> pass though?
>>>
>>> Best regards,
>>> Tyler
>>
>>
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