[Halld-tagger] information about tagger racks and cables

[Timothy Whitlatch]

Hi Richard, 

There are no plans to make the racks moveable. I will show tagger hall layouts Monday and we can discuss. 

Cheers, 


Tim Whitlatch 
Hall D Engineer 
Jefferson Lab 
12050 Jefferson Ave ste 402 
Newport News, Va 23606 
757-269-5087 

----- Original Message -----

From: "Fernando J Barbosa" <barbosa at jlab.org> 
To: "Richard Jones" <richard.t.jones at uconn.edu> 
Cc: "Tim Whitlatch" <whitey at jlab.org>, "Hall D beam working group" <halld-tagger at jlab.org>, "Fernando J. Barbosa" <barbosa at jlab.org> 
Sent: Saturday, May 11, 2013 6:02:49 PM 
Subject: Re: information about tagger racks and cables 

Hi Richard, 

Tim is best contact regarding the mechanical setup in the tagger hall. 

I recall that quite sometime ago we discussed with you the setup to 
determine the shortest possible cable lengths (40 ft). The racks are 
fixed due to cabling and the power mains (110V and 208V), which are 
fixed. The cables will be on trays but I am not sure if they are movable. 

Best regards, 
Fernando 


On 5/10/2013 2:32 PM, Richard Jones wrote: 
> Hello Fernando and Tim 
> 
> During the installation meeting there was a discussion of the signal 
> cables from the microscope to the electronic racks in the tagger 
> hall. We are now finalizing the layout of the tagger microscope 
> readout, and would like to verify that the cable routes and plans for 
> cable trays in the tagger hall are compatible with our drawings. 
> 
> Also, we need to discuss what happens when we need to move the 
> microscope from its nominal position at 9GeV on the focal plane to 
> 6GeV (for the pion polarizability measurement) and possibly 
> elsewhere. Is it planned to make the electronics racks for the 
> microscope mobile (eg. on castors) so that they can move along with 
> the microscope? Are there plans to have cable trays for these signal 
> cables, or do they just lie on the floor? If trays, will the trays be 
> movable? 
> 
> It would be helpful to have a floor plan of the tagger building 
> available during our biweekly meeting on Monday, so we can see what 
> the limits will be, given the lengths of signal cables that already 
> exist. I think these cables have already been made? 
> 
> -Richard Jones 
> 


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