Difference between revisions of "October 05, 2022 FCAL Insert Installation Meeting"
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== Minutes == | == 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 | ||
+ | ** 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 | ||
+ | |||
+ | |||
+ | * Discussed insulation vacuum vs. standard - standard foam board ok since delta T is small | ||
== Action Items == | == Action Items == |
Revision as of 14:24, 11 October 2022
Meeting Time and Place
Wednesday October 05, 2022 10am At Jefferson Lab, Hall D Counting House and on Teams
Agenda
- Minutes from last meeting https://halldweb.jlab.org/wiki/index.php/October_07,_2022_FCAL_Insert_Installation_Meeting
- Discuss Lead Glass and crystal module removal/install] - Sasha
- Use of platform upstream of detector - Stephanie/Tim
- Discuss cable mapping - Sasha
- Existing cables
- New Cables
- Cable quotes 0 Chris S.
- Existing structure can support 2500lbs
- Monitoring system discussion directly after
- Assembly in ESB
- Media:FCAL2_strawman_schedule.pdf
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
- 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
- Discussed insulation vacuum vs. standard - standard foam board ok since delta T is small