[Halld-target] Notes, Target Design Review, February 23, 2012

[Mark M. Ito]

Find notes from the review and a link to Jim's talk at 
https://halldweb1.jlab.org/wiki/index.php/GlueX_Target_Design_Review,_February_23,_2012 
and below as text.
   ______

GlueX Target Design Review, February 23, 2012

    Present: Steve Christo, Jim Fochtman, Mark Ito, Dave Kashy, Chris
    Keith, Elton Smith, Tim Whitlatch, Elliott Wolin

Review Slides

    [5]Jim's Presentation

Notes

      * Target volume of 0.4 l of liquid hydrogen expands to about 1000 l
        at STP.
      * Hall B pumps on scattering chamber with turbo pump all the time.
      * Jim added [6]Lakeshore Cernox temperature sensors at various
        heights.
           + Chris requested that they be removable, to replace defective
             ones.
      * Chris recommends the [7]Lakeshore Model 218 8-channel temperature
        monitor read-out unit.
      * System should be able to liquefy helium-4, taking it down to 3 K.
      * Jim will look into adding a relief tube to by-pass normal feed in
        case of boil off of target liquid.

    Notes recorded by Mark.

    Retrieved from
    
"https://halldweb1.jlab.org/wiki/index.php/GlueX_Target_Design_Review,_February_23,_2012"

References

    5. 
https://halldweb1.jlab.org/talks/2012-1Q/Hall%20D%20Target%20Design%20Status,%20February%2022,%202012.pptx
    6. 
http://www.lakeshore.com/products/Cryogenic-Temperature-Sensors/Cernox/Models/Pages/Overview.aspx
    7. 
http://www.lakeshore.com/products/cryogenic-temperature-monitors/model-218/Pages/Overview.aspx


-- 
Mark M. Ito
Jefferson Lab (www.jlab.org)
(757)269-5295