INFO about some Lumi tools
                  ==========================
                                                    Last update 20.10.97
                   afs vt100 tools
                   -----------------     
         (if not available - use /afs/desy.de/user/u/usik/bin/XXXX directly)
                                                   
 lumiinfo  - what you are just reading 
 shlu      - SHow LUmi  - current lumi data (updated every 1-2 s)
 shrs      - SHow Run Summary  - run summary for current Lumi Run 
                                            (updated every 30 s)
             look shrs -u for options
 shls      - SHow Lumi Statistics (Summary of Lumi Runs Summaries )
             look shls -u for options
             
             (through www - http://www.desy.de:8888/~usik/[above tool]
              
                   afs X tools
                   -------------
                   
 xshlu      -   on-line ahd oracle lumi data (graphic form):
            - - last 10min/24hours/24hours(detailed) histories 
                (averaging for 1/150/12 seconds);
            - - histories for any LumiRun from Oracle (averaging for 12 sec)
                 (currently not available on afs);
            - - histories loading to user pool as ascii file and lumi.kumac 
                file preparing.



IMPORTANT: All lumi values are on-line values. Official values are 
produced by S.Levonian.

 Definitions:
 -----------
 Steps of Lumi procedure:
 STEP 1 -  Final beam energies (Detectors are in the working positions )
 STEP 2 -  "Luminosity Run" declared by HERA ( end of HERA lumi tuning )
 STEP 3 -  H1 in full operation ( essential trackers on )
 STEP 4 -  End of HERA "Luminosity Run"
 
 
 HERA_lumi            - integrated lumi produced by HERA
 H1_Run_lumi          - HERA_lumi during H1 runs 
 H1_data_taken_lumi   - H1_Run_lumi, dead time corrected (H1_Run_lumi*(1-DT))
 
 The 3 integrated luminosities described above are calculated by the Lumi
 system continuously during each Lumi Fill (STEP 1 - STEP 4) and permanently
 displayed in the Lumi Run Summary ( shrs command or in WWWW ).
 Each Lumi Fill has a unique Lumi Run number defined by the Lumi system.
 Lumi Run is a synonym of a successful Lumi Fill.
 
 The following integrated luminosities are presented in the Lumi Run Summaries
 and in The Lumi Statistics table ( shls command or in WWWW ).
 
 HERA_total     - Integrated lumi produced by HERA at final beam energies
 HERA_delivered - Integrated lumi delivered by HERA since "Luminosity Run"
                  declared ( end of HERA lumi tuning )
 H1_runs        - HERA_delivered lumi during H1 "full operated" runs
 H1_on_tape     - H1_runs lumi, dead time corrected (H1_runs_lumi*(1-DT))
 
 
 Efficiencies (calculated for every Lumi Run):
 
 H1 operation efficiency - H1 runs/HERA delivered
 Dead Time correction    - H1_on_tape/H1 runs
 H1 total efficiency     - H1_on_tape/HERA delivered

 HERA4H1  efficiency     - HERA delivered/(MaxSpLumi*Integr.ep_convolution)=
                         = HERA delivered/HERA ideal delivery (with maximum 
                           possible specific lumi for the Lumi Run) -reflects
                           the lumi loss between Step1 and Step2 and quality
                           of lumi tuning.