[Halld-cal] BCAL fully inserted into magnet

[Zisis Papandreou]

Hi Elton:

GREAT NEWS!  A relief that it is in safely.  Congrats to all involved.

Cheers, Zisis...

On 2013-09-12, at 1:15 PM, Elton Smith <elton at jlab.org> wrote:

> Dear collaborators,
> 
> Today we completed the insertion of the BCAL into the solenoid. Tim 
> coordinated the effort as Tom was on vacation this week. But it took 
> essentially all the Hall D technical staff working together to make this 
> happen safely. We started yesterday and got about 3/4 of the way into 
> the magnet. Today we started out by measuring the tension pulling the 
> BCAL, which was about 12,000 lbs once it got moving. The initial tug to 
> get it started after sitting overnight was about 17,000 lbs. By noon the 
> calorimeter was within 1" of its final location. There was a slight 
> interference at the end of the pull, which required an adjustment to the 
> pulling fixture. The modification was completed after lunch and the 
> detector was pulled into its resting position, about 1 mm from the mark 
> on the magnet. The gap between the flat side of the modules and the iron 
> is about 7/8" +/- 1/8", measured by ruler. The BCAL will be surveyed on 
> Monday and accurate as-built positions will be determined.
> 
> Cheers, Elton.
> 
> -- 
> Elton Smith
> Jefferson Lab MS 12H5
> 12000 Jefferson Ave STE 16
> Newport News, VA 23606
> (757) 269-7625
> (757) 269-6331 fax
> 
> _______________________________________________
> Halld-cal mailing list
> Halld-cal at jlab.org
> https://mailman.jlab.org/mailman/listinfo/halld-cal


Dr. Zisis Papandreou
Professor of Physics, Ph.D, P.Phys.
---------------------------------------------------------
Department of Physics   
University of Regina	    
3737 Wascana Parkway
Regina, SK  S4S 0A2	 CANADA

Phone: (306) 585-5379
Fax: (306) 585-5659
Email:  zisis at uregina.ca
Website: http://kronos.phys.uregina.ca/~zisis/professional/




-------------- next part --------------
An HTML attachment was scrubbed...
URL: https://mailman.jlab.org/pipermail/halld-cal/attachments/20130912/054c4a2c/attachment.html