[Clas12_rich] EEL 124 layout for RICH assembly

[Walt Akers / JLAB]

Dear Marco:

Please find attached the actually measurements for each of the doors
along the path to the cleanroom. This was measured this morning and,
as you can see, it varies significantly from the drawings that are
provided by Facilities Management.

Each door to the cleanroom is 16' 3" (4.95 meters), while the entry into
room EEL 125 is significant less at 15' (4.57 meters).

Also, there is a major bottleneck in the path out of the facility where the
target group's fences are installed.  I am told (George Jacobs) that this
obstacle will be overcome by lifting the RICH detector over the fences
and then lowering it into the open space in front of the door.

In any even, getting through the doors to the cleanroom appears to be
the least significant challenge - and we should be able to use the front
entry with no negative impact.

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
>>
>>
>> _______________________________________________
>> Clas12_rich mailing list
>> Clas12_rich at jlab.org
>> https://mailman.jlab.org/mailman/listinfo/clas12_rich

-------------- next part --------------
A non-text attachment was scrubbed...
Name: EELPath.jpg
Type: image/jpeg
Size: 1053590 bytes
Desc: not available
URL: <https://mailman.jlab.org/pipermail/clas12_rich/attachments/20160810/969f603d/attachment-0002.jpg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: EEL-Path-Metric.jpg
Type: image/jpeg
Size: 1059229 bytes
Desc: not available
URL: <https://mailman.jlab.org/pipermail/clas12_rich/attachments/20160810/969f603d/attachment-0003.jpg>