Minutes and Action List of July 8 2018 ArgonCube2x2 Instalaltion Meeting
- Attendance: Jim,John,Gary,Sai, Ming Jeong and Ting
- Jim, Gary and Ming's presentation on Minerva module placement and AgonCube2x2 layout -- Slides linked in the indico page
- Minerva module attaches to strong back with clips (4 on top and 4 on bottom)
- Locations of those clips define the placement of module on the strong back and also the limitation of minimum height of modules to the floor
- After a module moves into position, axial bolts are used to attach new module to the previous installed modules
- Those bolts are also serving as "alignment pins" to ensure the module in vertical by controlling gaps between modules
- First module needs survey's help for alignment
- Like to get as-build survey from Virgil to understand the procedure better
- it is also possible to generate gaps between 4-module groups for electronics installation convenience (if needed)
- Gary's 3d layout has argonCube2x2 closer to the curved edge of MINOS open shaft -- need to move it to be closer to the flat edge and away from utility pipes
- In the shaft model, it is useful to add utility boxes which located way below the top surface (probably at middle height of the shaft )
- Some of the utility boxes extends out more than the ones on the top surface
- NOvA days we notice them as surprises
- Initial placement of argonCube2x2 at downstream end of MINOS hall
- center along beam line
- ~24" above floor
- 24" is likely the highest we want to go with 2x2 if we want to do TPC module extraction and insertion
- The crane height in MINOS is about 275.7" (7m) from the 3d model and from as-build measurement
- The crane is taller than the 22' we got from MINOS TDR (good news!)
- To be conservative, we might still want to lower the 2x2 to be even more to leave more working room
- The TPC design is not really completed yet and potentially there is more height requirement for HV feedthrough or other utilities pipes on top of TPC module flange
- It is easy to find block with 18" height so we do not need to design additional support frame
- There is a scheme to modify the strong back in order to place the Minerva module closer to floor
- Still needs 2" above floor to disengage strong back frame after installation
- Overall, the minimum height of 4"-5" is needed between Minerva module and floor
- Want have more detail next time (we run out of time to discuss the last slide in detail)
- Action list:
- Gary to map out space needed to install temporary support rails in upstream area of MINOS hall for recycled Minerva modules
- Gary to refine Minerva modules layout for the argonCube2x2 configuration:
- Upstream: 12 tracker Minerva modules
- Downstream: 10 tracker modules + 10 ECal modules + 4 HCal modules
- Min Jeong and Sai to define gaps needed between 2x2 and Minerva module and also desired cryogenic equipment location if available
- John and Jim to compile MINERVA installation procedures and JHAs for safety review etc
- We will contact neutrino division safety officer Angela Aparicio for guidance on safety review process
- Next meeting is July 22,2019
There are minutes attached to this event.
Show them.