FD data quality , 1997 p83 pass 1

Below is a comparison of p83 pass 1 & p77 pass 4 ( last on-peak run ). In brief -
FB
The tubes arent working
FK
The calorimeter resolution is ~50% worse ( no radial information from tubes )
SW
is OK / same as p77
FE
is low ( s2 is OK, s1 is 0.8*Ebeam, see plots )
Since we now have a large chunk of calibration data without tubes, the outlook for FD luminosity is rather poor, particularly since the FDs are rumored to be further apart than last year.
 Forward detectors  Period              83 pass   1            77 pass 4
   <Ebeam>                             45.625                                
 o <E>,             Etot Bhabhas        0.998 * Eb           1.013 * Eb            
   E Resolution,    Etot Bhabhas        0.330 / Sqrt(Eb)     0.252 / Sqrt(Eb)      
   <ThetaR-ThetaL>  Etot Bhabhas        0.000 mRad           0.089 mRad            
   Theta resolution,Etot Bhabhas        0.000 mRad           1.639 mRad            
                                                                                   
 o <E>,             SiW  Bhabhas        1.025 * Eb           1.026 * Eb            
   E Resolution,    SiW  Bhabhas        0.380 / Sqrt(Eb)     0.390 / Sqrt(Eb)      
                                                                                   
 o <Esum>,          FE   Bhabhas        0.865 * Eb           0.999 * Eb            
   E Resolution,    FE   Bhabhas        1.649 / Sqrt(Eb)     1.549 / Sqrt(Eb)      
                                                                                   
 o (SiW.TKMH)/TKMH                      0.012                0.015                 
   d{Log(Ncl)/dE}, SiW.TKMH            -0.033 * Eb          -0.034 * Eb            
                                                                                   
 o ( FD.TKMH)/TKMH                      0.063                0.054                 
   d{Log(Ncl)/dE},  FD.TKMH            -0.049 * Eb          -0.070 * Eb            
                                                                                   
 o ( FE.TKMH)/TKMH                      0.021                0.302                 
   d{Log(Ncl)/dE},  FE.TKMH            -0.061 * Eb          -0.052 * Eb            
                                                       
 

The p83 data quality plots are also available