Speaker
            
    Rodger Bossert
        
            (Fermi National Accelerator Laboratory)
        
    Description
As part of the U.S. contribution to the HL-LHC Accelerator Upgrade Project (AUP), Fermilab is designing and building cold masses suitable for use in the LHC interaction regions. The cold mass provides a vacuum-tight helium enclosure for the magnets. Two magnets are aligned both axially and in cross section at Fermilab based on survey and warm magnetic measurements. Bus work and instrumentation is added. A welded stainless steel vacuum-tight shell surrounds the two magnets, and the structure is prepared for insertion into the cryostat. This paper summarizes the design of the cold mass including alignment, bus work, weld details, and instrumentation.
Author
        
            
                
                
                    
                        Rodger Bossert
                    
                
                
                        (Fermi National Accelerator Laboratory)
                    
            
        
    
        Co-authors
        
            
                
                        Mr
                    
                
                    
                        Charles Orozco
                    
                
                
                        (Fermi National Accelerator Laboratory)
                    
            
        
            
                
                
                    
                        Don  Arnold
                    
                
                
                        (Fermi National Accelerator Laboatory)
                    
            
        
            
                
                        Dr
                    
                
                    
                        Sandor Feher
                    
                
                
                        (FNAL)
                    
            
        
            
                
                        Mr
                    
                
                    
                        Luke Martin
                    
                
                
                        (Fermi National Accelerator Laboratory)
                    
            
        
            
                
                
                    
                        Colin Narug
                    
                
                
                        (Fermi National Accelerator Laboratory)
                    
            
        
            
                
                
                    
                        Vladimir Nikolic
                    
                
                
                        (Fermi National Accelerator Laboratory)
                    
            
        
            
                
                
                    
                        Roger Jon Rabehl
                    
                
                
                        (Fermi National Accelerator Lab. (US))
                    
            
        
            
                
                
                    
                        William Robotham
                    
                
                
                        (Fermi National Accelerator Laboratory)
                    
            
        
            
                
                
                    
                        Thomas Strauss
                    
                
                
                        (FNAL)
                    
            
        
            
                
                
                    
                        Antonios Vouris
                    
                
                
                        (Fermilab)
                    
            
        
    
        