Zhe Yang Michigan REU Program Symposium August 9, 2017 Design and Construction of the Glue Machine for ATLAS sMDT Chamber Assembling Zhe Yang Michigan REU Program Symposium August 9, 2017
sMDT for ATLAS muon detector upgrade New sMDT will be built to upgrade the ATLAS Muon Spectrometer barrel for both tracking and trigger, which will increase the trigger efficiency from 65% to 95% sMDT = Small Monitored Drift Tube Diameter of MDT is 30mm Diameter of sMDT is 15mm Need build smaller MDT in order to add additional trigger chamber layer: sRPC MDT->sMDT: shorter drift time better linear space-to-drift time relationship excellent tracking resolution MDT sMDT
Michigan’s Tasks Build & test 48 precision sMDT chambers Need to build chamber construction facilities at UM, including: Chamber assembly room Precision jigging Automatic glue-machine Gas, HV and cosmic ray test stations … I will report the glue machine design and construction work today Dry run to build a sMDT prototype at High Bay Tubes are not glued; we need to build the glue machine to glue 8 layers tubes + a spacer frame into a sMDT chamber Glue machine at MPI
Design the glue machine at Michigan PC Labview/PALPC DNC CNC Direct numerical control Computer numerical control Controller X Y Z A 4 axis motion system (hardware) Development of software control programs
Glue machine parts preparation Linear units and motor controllers are ordered from ISEL company (NY) Machine assembling joints and plates are ordered, and but need to be modified Glue dispenser structure made in our shop (see drawings made by me)
Machined glue dispenser head part
My design and construction work for the wheels to control glue direction along the tubes View in 3d Solidworks
Control program development with Labview
Working in Progress Glue Machine Assembling using parts from ISEL (it took 3 month to get the parts to UM) Debug the control program “Dry Run” & Adjustment the motion speeds with dummy tubes Goal: to complete glue machine design and construction at the end of this year
Acknowledgement It has been a great opportunity for me to participate in ATLAS REU program at UM. Particularly thanks to Professor Myron and Jim who took us to visit Chicago and Fermi lab during this summer! I would like to thank My supervisor: Prof. Bing Zhou Technique support and supervisor: Curtis Weavedyck, Ed. Diehl My team members: Ezra, Cooper, and Ethan Last, but not least: UM REU program coordination professors: Myron Campbell and Jim Liu
Our Atlas Team