Difference between revisions of "November 02, 2022 FCAL Insert Installation Meeting"
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* Minutes from last meeting https://halldweb.jlab.org/wiki/index.php/October_19,_2022_FCAL_Insert_Installation_Meeting | * Minutes from last meeting https://halldweb.jlab.org/wiki/index.php/October_19,_2022_FCAL_Insert_Installation_Meeting | ||
* Discuss Lead Glass and crystal module removal/install [https://halldweb.jlab.org/wiki/index.php/FCAL_Installation] - Sasha | * Discuss Lead Glass and crystal module removal/install [https://halldweb.jlab.org/wiki/index.php/FCAL_Installation] - Sasha | ||
| + | * Manpower and task division [https://halldweb.jlab.org/wiki/index.php/FCAL_Installation] - Sasha | ||
* Initial testing of modules before removal - Mark D. | * Initial testing of modules before removal - Mark D. | ||
* Revisited removal of darkroom - | * Revisited removal of darkroom - | ||
| Line 19: | Line 20: | ||
** HV and LV cable length = 20 ft | ** HV and LV cable length = 20 ft | ||
** Signal cable length = 16 ft | ** Signal cable length = 16 ft | ||
| + | ** Cable trays for Signal all going N-S under platform | ||
| + | ** HV and LV cables al come from underneath also | ||
* Monitoring system discussion | * Monitoring system discussion | ||
* Assembly in ESB | * Assembly in ESB | ||
| Line 31: | Line 34: | ||
== Minutes == | == Minutes == | ||
| − | * Reviewed minutes from | + | * Reviewed minutes from last meeting |
| − | * Sasha | + | * Looked at Sasha's installation wiki page |
| − | ** | + | ** Showed different possible damage to wrapping of existing lead glass modules |
| − | ** | + | ** Is aluminum being stuck to module surface a performance issue (light yield)? |
| − | ** | + | *** Really no way to test now |
| − | * | + | *** Need to decide threshold for re-wrapping |
| − | ** Need to | + | ** Some inspection/labelling needed prior to unstacking of blocks |
| − | ** | + | ** Sasha proposed that him and Arshak inspect each module after removal to decide on action to be taken - |
| − | ** | + | ** Mark and Malte need to be in loop for base and pmt changes |
| − | ** | + | *** Possibly test light yield on first 100 |
| − | ** | + | ** Malte asked who unstacked the original modules from BNL and what were the issues |
| − | * | + | ** Looks like we will have about 500 good PMT spares |
| − | * | + | ** Sasha presented manpower requirements |
| − | * | + | *** would need 2 students for 30 weeks to re-wrap all old modules |
| − | ** | + | *** Total 11 students for 3 months will be needed for project (Eugene to check budgets) |
| − | ** | + | *** JLAB folks responsible for unstacking modules - Hall D Techs/DSG? |
| − | ** | + | *** Sasha/Arshak would train students to do module refurb |
| − | * | + | *** Students would label and bundle cables |
| − | + | *** JLAB tech staff handle structure, darkroom, cable trays, racks | |
| − | + | *** JLAB electronics group handle crate installation and cabling possibly with help from DSG | |
| − | * | + | *** Students would handle moving existing cables to adjacent crates on north and south racks |
| − | * | + | *** Need to get a final list of universities supplying students |
| − | + | *** Maybe best to downgrade the hall from RAD worker 1 to Gert only | |
| − | * | + | ** Sasha mentioned the need to re-strap some existing 25 micron brass strap crystal modules |
| − | * | + | ** Need to start developing procedures for all aspects of the project |
| − | * | + | ** Need to define workstations needed - add to Sasha's table and develop a layout |
| − | * | + | * Need to have electric power added to south side of FCAL platform |
| − | * | + | * Need to update strawman schedule with more detail including resources |
| − | * | + | * Lead glass acrylic sheet same design as original - need to remake panes for new geometry |
| − | ** | + | |
| − | ** | + | |
| − | * | + | |
| − | ** | + | |
| − | * | + | |
| − | * | + | |
| − | ** Need to get | + | |
| − | ** | + | |
| − | ** Sasha | + | |
| − | ** | + | |
| − | + | ||
| − | ** | + | |
| − | * | + | |
| − | * | + | |
| − | * | + | |
== Action Items == | == Action Items == | ||
| − | * | + | * Develop required work stations needed and add to table - Sasha |
| − | + | * Develop hall layout based on work stations - Tim/Stephanie | |
| − | * Develop layout | + | * Update Gant chart with more detail and resources - Scot/Tim |
| − | * | + | * Check to see if hall can be downgraded to a Radiologically Controlled area - Tim |
| − | * | + | * Start developing procedures - Sasha - Tim |
| − | * | + | * Determine what universities/students will be available - Sasha |
| + | * Have electricians look at bringing power to new racks on south side - Tim | ||
| + | * Determine if we have budget for students - Eugene | ||
| + | * Design patch panels - Chris S./Stephanie | ||
Latest revision as of 13:23, 3 November 2022
Meeting Time and Place
Wednesday November 02, 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_19,_2022_FCAL_Insert_Installation_Meeting
- Discuss Lead Glass and crystal module removal/install [1] - Sasha
- Manpower and task division [2] - Sasha
- Initial testing of modules before removal - Mark D.
- Revisited removal of darkroom -
- All cables need to be removed from darkroom to be able to install new detector
- Maybe able to crane frame off platform partially assemble
- Rework for patch panels
- Cable discussion fruitful
- Option D to move cables from inner 400 cables to adjacent crate
- Remove 2 crates and move to new racks
- Abandon 200 cables
- Patch panels worked out, 2 HV and 2 LV north and south side, 1 signal feedthrough plate downstream wall
- HV and LV cable length = 20 ft
- Signal cable length = 16 ft
- Cable trays for Signal all going N-S under platform
- HV and LV cables al come from underneath also
- Monitoring system discussion
- Assembly in ESB
- Media:FCAL2_strawman_schedule.pdf
Minutes
- Reviewed minutes from last meeting
- Looked at Sasha's installation wiki page
- Showed different possible damage to wrapping of existing lead glass modules
- Is aluminum being stuck to module surface a performance issue (light yield)?
- Really no way to test now
- Need to decide threshold for re-wrapping
- Some inspection/labelling needed prior to unstacking of blocks
- Sasha proposed that him and Arshak inspect each module after removal to decide on action to be taken -
- Mark and Malte need to be in loop for base and pmt changes
- Possibly test light yield on first 100
- Malte asked who unstacked the original modules from BNL and what were the issues
- Looks like we will have about 500 good PMT spares
- Sasha presented manpower requirements
- would need 2 students for 30 weeks to re-wrap all old modules
- Total 11 students for 3 months will be needed for project (Eugene to check budgets)
- JLAB folks responsible for unstacking modules - Hall D Techs/DSG?
- Sasha/Arshak would train students to do module refurb
- Students would label and bundle cables
- JLAB tech staff handle structure, darkroom, cable trays, racks
- JLAB electronics group handle crate installation and cabling possibly with help from DSG
- Students would handle moving existing cables to adjacent crates on north and south racks
- Need to get a final list of universities supplying students
- Maybe best to downgrade the hall from RAD worker 1 to Gert only
- Sasha mentioned the need to re-strap some existing 25 micron brass strap crystal modules
- Need to start developing procedures for all aspects of the project
- Need to define workstations needed - add to Sasha's table and develop a layout
- Need to have electric power added to south side of FCAL platform
- Need to update strawman schedule with more detail including resources
- Lead glass acrylic sheet same design as original - need to remake panes for new geometry
Action Items
- Develop required work stations needed and add to table - Sasha
- Develop hall layout based on work stations - Tim/Stephanie
- Update Gant chart with more detail and resources - Scot/Tim
- Check to see if hall can be downgraded to a Radiologically Controlled area - Tim
- Start developing procedures - Sasha - Tim
- Determine what universities/students will be available - Sasha
- Have electricians look at bringing power to new racks on south side - Tim
- Determine if we have budget for students - Eugene
- Design patch panels - Chris S./Stephanie
