Difference between revisions of "October 05, 2022 FCAL Insert Installation Meeting"

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(Minutes)
(Minutes)
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** More detail needed on existing module refurbish plan
 
** More detail needed on existing module refurbish plan
 
** Mark D. has database for existing module and will come up with an initial plan for sorting
 
** Mark D. has database for existing module and will come up with an initial plan for sorting
 +
** Existing cables that may be used need to be relabeled and put in database
 
** Eugene expressed that we should work with the mini FCAL to develop the removal/refurbish plan
 
** Eugene expressed that we should work with the mini FCAL to develop the removal/refurbish plan
  
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** Chris S. to get quote on additional 400 signal cables
 
** Chris S. to get quote on additional 400 signal cables
 
** Chris already request quote for 1600 new thin (RG174) signal cables to go from patch panel to detectors
 
** Chris already request quote for 1600 new thin (RG174) signal cables to go from patch panel to detectors
 
+
* Looked at using the existing BCAL install platform on the upstream side of the FCAL.
 
+
** We should probably use this regardless of decision to remove cables from crates
 +
** Can we use scaffolding on the temporary platform?
 
* Discussed insulation vacuum vs. standard - standard foam board ok since delta T is small
 
* Discussed insulation vacuum vs. standard - standard foam board ok since delta T is small
  
 
== Action Items ==
 
== Action Items ==

Revision as of 14:30, 11 October 2022

Meeting Time and Place

Wednesday October 05, 2022 10am At Jefferson Lab, Hall D Counting House and on Teams

Agenda

Lower step.jpeg
JBweld cooling test.jpeg
Glass module steps.jpeg
Work platform.png
Work platform top.png
Work platform iso.png
Work platform bird.png

Minutes

  • Discussed lead glass module removal/install
    • Lead glass blocks will be installed as they are now with alternating SS vertical and then horizontal
    • Refurbishing existing module bases is about 1 hour for Malte and Mark, but Chris S. also has to do very delicate work also
    • Students may help base repairs but ES&H input would be needed
    • Since there is no time to design, test and fabricate new bases for the existing modules, we will stick to repairing existing bases
    • The worst bases should be removed in March before taking apart the detector so the repairs can be started
    • More detail needed on existing module refurbish plan
    • Mark D. has database for existing module and will come up with an initial plan for sorting
    • Existing cables that may be used need to be relabeled and put in database
    • Eugene expressed that we should work with the mini FCAL to develop the removal/refurbish plan
  • Cable discussions
    • Fernando expressed that in the tight area, LV cables should not be ribbon cables - 1 cable for each base should be used
    • Revisited signal cable plan to come from downstream wall through patch panel - Mark D. not at previous meeting - seems ok
    • Six patch panels in all for all new cables - need to start designing this for dark room and reinforcements needed
    • Existing I-beam over dark room should handle additional cable weight
    • Need to look at cable routing under platform and come up with a layout
    • Sasha needs to come up with a cable mapping plan to help reach decisions on using existing cables or removing all
    • Chris S. will ship out 1200 signal cables to get terminated
    • Chris S. to get quote on additional 400 signal cables
    • Chris already request quote for 1600 new thin (RG174) signal cables to go from patch panel to detectors
  • Looked at using the existing BCAL install platform on the upstream side of the FCAL.
    • We should probably use this regardless of decision to remove cables from crates
    • Can we use scaffolding on the temporary platform?
  • Discussed insulation vacuum vs. standard - standard foam board ok since delta T is small

Action Items