[Clas12_rich] EEL 124 layout for RICH assembly

[Marco Mirazita]

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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