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HNSS_settings

HNSS Settings for E89-009

  Beam (GeV) SOS P0 (GeV/c) Pe'_Range (MeV/c) Field Scaling_Factor Splitter (T) Split-Pole (T) Run Mode / Main Goals
               
0 1.645 1.055 228.47 - 338.14 1 1.27944 1.2845 Standard HNSS setting as reference
               
1 1.953 1.31397929 284.55 - 421.14 1.245478 1.5935144 1.5998165 Commissionings
               
2 1.864 1.23980013 268.49 - 397.37 1.175166 1.5035544 1.5095007 A(e,e'K), production, CH2 calibration
               
3 1.721 1.11951958 242.44 - 358.82 1.061156 1.3576854 1.3630549 A(e,e'K), production, CH2 calibration
               
  b Rang for Various of Particles and HNSS Settings            
               
  Beam (GeV) b for e' b for e+ b for p+ b for K+ b for p Run Mode
               
  1.953 1 1 0.994 - 0.996 0.923 - 0.946 0.783 - 0.838 C(e,e'K) / p(e,e'K), KID check and cal.
               
  1.864 1 1 0.992 - 0.995 0.914 - 0.940 0.765 - 0.824 A(e,e'K), K production
               
  1.721 1 1 0.991 - 0.994 0.898 - 0.928 0.732 - 0.795 A(e,e'K), K production
               
               
               
               
  Special Notes            
               
1 Splitter Effect to the Beam            
               
  Splitter effective length along the beam path = 0.6011 m            
               
  First downstream viewer is 3.66 m away from Hall C pivot            
               
  Dumplette line angle is 8.32 degrees            
               
  Beam (GeV) r (Meter) F (Rad) Correction DF Power needed    
               
  1.953 4.088088 0.14704 -0.1 deg 11.4KG-cm    
  1.864 4.13524 0.14536 -0.01 deg 1.1KG-cm    
  1.721 4.228202 0.14216 0.175 deg 17.5KG-cm    
             
             
             
             
2 Splitter field / hall probe = 2.59291 (Not accurate any more)            
               
               
               
3 Splitter and Split-Pole Current Settings            
               
  Beam (GeV) Splitter (Amp) Split-Pole (Amp)        
               
  1.953 454.604 398.75        
  1.864 419.933 363.24        
  1.721 370.367 319.91        
               
               
               
4 SOS Magnets Set by Momentum            
               
  SOS Q set at 91.5% of the required momentum            

Last Updated on 2/19/00
By Liguang Tang