Engineering Integration and CAD
- 1 Engineering Integration
- 2 CAD
put all subsystems together to form SoLID in HallA, and take things apart for service and changing configuration
- the relevant section in SoLID pCDR
- short summary of support at 2015/02 director review
- short summary of magnet at 2015/02 director review
- talk 1 at 2015/02 director review
- talk 2 at 2015/02 director review
- talk at collaboration meeting 2015/05
- talk at collaboration meeting 2015/09
- talk at collaboration meeting 2016/01
- talk at collaboration meeting 2016/05
- talk at collaboration meeting 2016/08
- talk at collaboration meeting 2016/12
size of the opening of the truck ramp door is 12 foot wide and 14.9 foot tall
overhead crane has a 40,000 lbs or 20 ton capacity
Whit's note on 2016/02/26
"The attached pdf will explain the design concept of how the endcap is assembled and show how we intend to gain access to the detectors. Design and engineering has asked all detector groups what space you will need for cabling, power and etc. We haven't received much feedback on this. For instance we understand you guys were studying whether the pmt's on the FA calorimeter needed to be located outside of the endcap or not.
Basically, the collaboration generated the dimensions for the endcap and then designed their detectors to use up ALL of the physical space as you might notice from the CAD model. My point is that everything is packed super tight in the space and not much thought was given for access. You guys seem to have made the most progress on incorporating mounting hardware into your design. Zhiwen even started looking at cable access and calculating the volume needed to get your cables out of the endcap. The HG Cherenkov has also taking some steps along this path.
Right now the process has you loading your sections onto the rails at the front of the endcap and rolling them to the back and attaching your cable bundles prior to rolling the EC to the final location at the rear. If you need to access them later we would have to roll the HG Cherenkov forward to give you access to the rear. The LG Cherenkov is mounted to back of the magnet and does not traverse backwards with the endcap.
My understanding was that you guys needed minimum access during the experiment. That if a few modules dropped out it was not a big deal and you would troubleshoot the problem if a long down was scheduled. I had envisioned some sort of custom scaffolding that goes between the endcap sections when they are separated to gain access. Something similar would be needed inside the endcap to give personnel access throughout to connect cables and etc.
Currently it looks like the back edge of your pmt's are parked right against the green back plate. If your group could determine what space you needed for cables (including min. bend radius) then we can make adjustments. I do not think it is possible for the diameter of the endcap to grow but it seems feasible (from a structural standpoint) to add some length to it.
To summarize: 1) We would be happy to work with you and the HG Cherenkov folks to reassess the available space. 2) It would be helpful to us if you could determine the space required for your cables in addition to the modules. 3) Zhiwen determined that axial opening for cables on the endcap cylinder would have the least impact on the magnetic field. Other options for openings exist like smaller round holes in the back plate. 4) Do you have an estimate for the number or frequency of maintenance intervals you will need? Keep in mind access may be limited by high levels of radiation! I have not seen an estimate from the collaboration on how hot this area will get. "
SoLID with longer endcap
SoLID with longer endcap configuration was discussed in 2017 Spring (Detector Layout and Magnetic Field) and summarized at http://solid.jlab.org/files/meeting_coll/2017_02_layout_magnet/solid_layout_magnet_zwzhao_201702.pdf
The idea is to share CAD file of individual parts from different groups, then combine them into the full system by JLab engineering
please send file to Zhiwen Zhao <email@example.com> or Whit Seay <firstname.lastname@example.org>
all files are at https://solid.jlab.org/files/CAD
for the status of overall SoLID CAD, refer to slide 10 of https://solid.jlab.org/files/meeting_coll/2016_01/Whit_SoLID_JAN_2016-SEAY.pdf
Distance to the center of the coils from the Hall A center is about 465 cm.
JLab engineering use Siemens NX and Solid Edge as software
- v1.0, https://solid.jlab.org/files/CAD/SoLID_SIDIS_V1.0.stp, https://solid.jlab.org/files/CAD/SoLID_SIDIS_V1.0.stl
- from "Whit Seay" <email@example.com> in 2016/04
- Base on magnet 1.0, HGC 2.0, EC 1.0, and all other parts with general geometry as placeholder
- stp version is from Whit, stl is converted by Zhiwen using "autodesk inventor"
- shorter endcap v1.0, https://solid.jlab.org/files/CAD/SoLID_CLEO_Mock_Up_v1.0.igs
- from Whit Seay in 2015/09
- based on design by Zhiwen Zhao in 2012 with PossionSuperfish file https://github.com/JeffersonLab/solid_gemc/tree/master/field/CLEOv8.am
- "This model has the two layers of iron, the endcap, the coil collars, the cryostat, and the support frame inside the cryostat. The magnet portion has dimensions based off the Cornell drawings. The endcap has dimensions based off of information gathered from the SoLID wiki page."
- longer endcap v1.0, https://solid.jlab.org/files/CAD/SoLID_CLEO_MAR_18_v1.0.igs https://github.com/JeffersonLab/solid_gemc/blob/master/geometry/magnet_moved/v1_cad/SoLID_CLEO_MAR_18_v1.0.stl
- from Whit Seay in 2018/03
- igs version is from Whit, stl is converted by Zhiwen using "freecad"
- based on design by Zhiwen Zhao in Spring 2017 with longer endcap https://solid.jlab.org/files/meeting_coll/2017_02_layout_magnet/solid_layout_magnet_zwzhao_201702.pdf
- It doesn't match everything,especially the front opening, in Jay Benesch's magnet Opera modeling in 2017 https://solid.jlab.org/cgi-bin/public/ShowDocument?docid=54
- The rail system for detector support is included as demonstration. The assumed 12 rails in endcap is according to EC but position can be adjusted. They will be governed by capacity of each rail available on the market and need feedback from different subsystems.
- longer endcap v2.0, https://solid.jlab.org/files/CAD/SoLID_Iron_Oct20_Update_v2.0.igs https://github.com/JeffersonLab/solid_gemc/blob/master/geometry/magnet_moved/v2_cad/SoLID_Iron_Oct20_Update_v2.0_vc.stl
- from Whit Seay in 2020/11
- igs version is from Whit, stl is converted by Zhiwen using "freecad"
- matching Jay Benesch's magnet Opera modeling with CLEO iron in 2020 https://solid.jlab.org/cgi-bin/public/ShowDocument?docid=360
- the rail system is not shown
Heavy Gas Cherenkov (HGC)
- v1.0, https://solid.jlab.org/files/CAD/HG_Cherenkov_Layout_201305_v1.0.STEP
- from Gary Swift in 2013/05
- The PMT magnetic shield has be shortened by 15cm, The Detector has been shifted 10cm downstream to make room for LGC
- v2.0, https://solid.jlab.org/files/CAD/HG_Cherenkov_Layout_201602_v2.0.STEP
- from Gary Swift in 2016/02
- layout arrayed about the magnet CL axis, tank depth is 1m, readout is 16 MAPMTs instead of 9
- v3.0, https://solid.jlab.org/files/CAD/HG_Cherenkov_Layout_202201_v3.0.stp https://solid.jlab.org/files/CAD/HG_Cherenkov_Layout_202201_v3.0.pdf https://solid.jlab.org/files/CAD/HG_Cherenkov_Layout_202201_v3.0_nofrontwin.stp https://solid.jlab.org/files/CAD/HG_Cherenkov_Layout_202201_v3.0_nofrontwin.pdf
- from Gary Swift's design of 4 sector prototype tested in UofR and Simon Gorbaty expended to full detector in 2022/01
- including both step and 3d-pdf files for with/without front Al window
- optical design done by Bo Yu in Spring 2018, geometry matches magnet longer endcap v2.0
- the known issues are the tank at small angle touching magnet iron, need to match rail system for support, readout structure is still preliminary.
LightGas Cherenkov (LGC)
- v1.0, https://solid.jlab.org/files/CAD/LGC_Mirrors_PMTs_SOLID_JLab15_1.0.igs
- from "Ed Kaczanowicz" <firstname.lastname@example.org> in 2015?
- config for PVDIS. The PMT magnetic shield has be shortened by 15cm, The Detector has been shifted 10cm downstream to make room for LGC
Electromagnetic Calorimeter (EC)
- v1.0, https://solid.jlab.org/files/CAD/PVDIS_EC_201504_v1.0.stp
- from O'Connor, Thomas P. <email@example.com> and Guarino, Victor <firstname.lastname@example.org> in 2015/04
- Forward angle only