THE CDF EVENT STRUCTURE

                                Version 4.01


          Kurt Biery, Craig Blocker, Terry Carroll, Henry Frisch,
                Steve Hahn, John Huth, Cathy Newman-Holmes,
                 Jim Patrick, Jim Proudfoot, David Quarrie,
              Phil Schlabach, Marjorie Shapiro, Pekka Sinervo
           (and anybody else who feels their name should be here)

                               18 March 1994



                             TABLE OF CONTENTS


                                          CONTENTS

       1       INTRODUCTION . . . . . . . . . . . . . . . . . . . . 6

       2       COORDINATE SYSTEM  . . . . . . . . . . . . . . . . . 7

       3       NUMBERING  . . . . . . . . . . . . . . . . . . . . . 7

       4       CLUSTERING . . . . . . . . . . . . . . . . . . . . . 8

       5       LOGICAL RECORD AND BANK FORMATS  . . . . . . . . . . 9
6. EVENT RECORD BANKS
       6.1       LRID Bank - Logical Record IDentifier Bank . . .  10
       6.2       EVCL Bank - EVent CLassification Bank  . . . . .  13
       6.3       EVCD Bank - Full Level 0-3 Trigger Bits  . . . .  18
       6.4       TPID Bank - TaPe IDentification Bank . . . . . .  20
7. DETECTOR COMPONENT BANKS
       7.1       Detector Component Bank Structure  . . . . . . .  22
       7.2       Detector Component Bank Names  . . . . . . . . .  24
       7.3       VTWD Bank - VTPC Wire Raw Data Bank  . . . . . .  31
       7.4       CTCD Bank - CTC Raw Data Bank  . . . . . . . . .  35
       7.5       CDTD Bank - Central Drift Tubes Detector Bank  .  39
       7.6       CEMD Bank - Central EM Calorimeter Bank  . . . .  42
       7.7       CSID Bank - Central 90 Degree Crack Filler 
                 Detector Bank  . . . . . . . . . . . . . . . . .  44
       7.8       CESD Bank - Central EM Calorimeter Strips Bank .  46
       7.9       CCRD Bank - Central Crack Detector Bank  . . . .  48
       7.10      PEMD Bank - Endplug EM Calorimeter Cathode Pad 
                 Bank . . . . . . . . . . . . . . . . . . . . . .  50
       7.11      PEAD Bank - Endplug EM Calorimeter Anode Bank  .  52
       7.12      PESD Bank - Endplug EM Calorimeter Strips Bank .  54
       7.13      LUMD Bank - Instantaneous Luminosity Bank  . . .  56
       7.14      FEMD Bank - Forward EM Calorimeter Cathode Pad 
                 Bank . . . . . . . . . . . . . . . . . . . . . .  57
       7.15      FEAD Bank - Forward EM Calorimeter Anode Bank  .  59
       7.16      FHXD Bank - Forward Hadron Calorimeter Anode Bank 61
       7.17      CHAD Bank - Central Hadron Calorimeter ADC Bank   63
       7.18      CHTD Bank - Central Hadron Calorimeter TDC Bank   65
       7.19      WHAD Bank - Endwall Hadron Calorimeter ADC Bank   67
       7.20      WHTD Bank - Endwall Hadron Calorimeter TDC Bank   69
       7.21      PHAD Bank - Endplug Hadron Calorimeter Cathode 
                 Pad Bank . . . . . . . . . . . . . . . . . . . .  71
       7.22      PHWD Bank - Endplug Hadron Calorimeter Anode Bank 73
       7.23      FHAD Bank - Forward Hadron Calorimeter Cathode 
                 Pad Bank . . . . . . . . . . . . . . . . . . . .  75
       7.24      FHWD Bank - Forward Hadron Calorimeter Anode Bank 77
       7.25      CMUD Bank - Central Muon Detector Bank . . . . .  79
       7.26      TCMD Bank - Trigger Central Muon Matchbox 
                 Detector Bank  . . . . . . . . . . . . . . . . .  81
       7.27      FMUD Bank - Forward Muon Wire Detector Bank  . .  85
       7.28      FMCD Bank - Forward Muon Counter Detector Bank .  89
       7.29      FMSD Bank - Forward Muon Strip Detector Bank . .  93
       7.30      FMTD Bank - Forward Muon Timing Detector Bank  .  96
       7.31      BBCD Bank - Beam Beam Counters Raw Data Bank . .  99
       7.32      BBLD Bank - Beam Beam Counters Latch Data Bank . 101
       7.33      CSXD Bank - Raw Data Bank For The Scintillators 
                 Of The Central Muon Extension  . . . . . . . . . 102
       7.34      CXRD Bank - Central Muon Extension Raw TDC Data 
                 Bank . . . . . . . . . . . . . . . . . . . . . . 106
       7.35      CURD Bank - Central Muon Upgrade Raw TDC Data 
                 Bank . . . . . . . . . . . . . . . . . . . . . . 108
       7.36      CSRD Bank - Central Muon Extension Scintillators 
                 Raw TDC Data Bank  . . . . . . . . . . . . . . . 110
       7.37      SCLD Bank - Scaler Data Bank . . . . . . . . . . 112
       7.38      LATD Bank - Misc Latch, ADC And TDC Detector 
                 Bank . . . . . . . . . . . . . . . . . . . . . . 116
       7.39      TL2D Bank - Level 2 Trigger Detector Bank, 1992 
                 Version  . . . . . . . . . . . . . . . . . . . . 118
       7.40      TNND Bank - Level 2 Calorimeter Neural Net 
                 Trigger Bank . . . . . . . . . . . . . . . . . . 130
       7.41      TCSD Bank - Level 2 Trigger Interceptor Bank . . 136
       7.42      TFRD Bank - CDF FRED Detector Bank . . . . . . . 144
       7.43      TRCD Bank - Raw/Cas Sum Registers  . . . . . . . 147
       7.44      BFLD Bank - B Field Detector Bank  . . . . . . . 152
       7.45      CFHD Bank - Ctc Fast Track-finder Hit Bank . . . 154
       7.46      CPTD Bank - CENTRAL PENN TRACK Detector Bank . . 156
       7.47      TBMD Bank - Block Mover Bank . . . . . . . . . . 160
       7.48      CFWD Bank - CTC Fast Track Finder Track Data 
                 Bank . . . . . . . . . . . . . . . . . . . . . . 164
       7.49      CPMD Bank - CENTRAL PENN TRACK Ram Dump Bank . . 167
       7.50      TTLD Bank - Level 2 Track List Bank  . . . . . . 171
       7.51      LULD Bank - Telescope Counters Latch Data Bank . 174
       7.52      SVXD Bank - Silicon Vertex Detector Raw Data 
                 Bank . . . . . . . . . . . . . . . . . . . . . . 175
       7.53      VTRD Bank - VTPC Raw TDC Data Bank . . . . . . . 180
       7.54      CTRD Bank - CTC Raw TDC Data Bank  . . . . . . . 182
       7.55      TUPD Bank - Level One Trigger Central Muon 
                 Upgrade Detector Bank  . . . . . . . . . . . . . 184
       7.56      TEXD Bank - Level One Trigger Central Muon 
                 Extension Detector Bank  . . . . . . . . . . . . 187
       7.57      CEGD Bank - Central EM High Gain Calorimeter 
                 Bank . . . . . . . . . . . . . . . . . . . . . . 189
       7.58      CMRD Bank - Central Muon Upgrade Scintillators 
                 Raw TDC Data Bank  . . . . . . . . . . . . . . . 191
       7.59      ERRD Bank - Error Reporting Bank . . . . . . . . 193
       7.60      ALMD Bank - MX Alarms And Limits Monitoring Bank 197
       7.61      CSPD Bank - Raw Data Bank For The Scintillators 
                 Of The Central Muon Upgrade  . . . . . . . . . . 199
       7.62      TMXD Bank - MX Scanner Time Bank . . . . . . . . 203
       7.63      PRMD Bank - RABBIT Card PROM Digital Data Bank . 205
       7.64      TODD Bank - Time Of Day Detector Bank  . . . . . 207
       7.65      MTPD Bank - MX Test Partition Bank . . . . . . . 208
       7.66      CPRD Bank - Central Preradiator Bank . . . . . . 210
       7.67      CMXD Bank - Central Muon Extension Raw Data Bank 212
       7.68      CMPD Bank - Central Muon Upgrade Raw Data Bank . 216
8. CALIBRATION EVENT BANKS
       8.1       VTWX Bank - VTpc Wire Calibration Summary Bank.  221
       8.2       CTCX Bank - CTC Calibration Summary Bank   . . . 224
       8.3       CEMX Bank - Central EM Calorimeter MX 
                 Calibration Summary Bank . . . . . . . . . . . . 227
       8.4       CHAX Bank - Central Hadron Calorimeter MX 
                 Calibration Summary Bank . . . . . . . . . . . . 229
       8.5       WHAX Bank - Endwall Calorimeter MX Calibration 
                 Summary Bank . . . . . . . . . . . . . . . . . . 231
       8.6       CTPD Bank - Central Calorimeter Temperature 
                 Probe Raw Data Bank  . . . . . . . . . . . . . . 233
       8.7       CTPX Bank - Central Calorimeter Temperature 
                 Probe MX Calibration   . . . . . . . . . . . . . 235
       8.8       CSDD Bank - Central Calorimeter Cs-137 Source 
                 Drive Raw Data Bank  . . . . . . . . . . . . . . 237
       8.9       CSDX Bank - Central Calorimeter Cs-137 Source 
                 Drive MX Calibration   . . . . . . . . . . . . . 239
       8.10      CCDD Bank - Central Calorimeter Digital Data Raw 
                 Data Bank  . . . . . . . . . . . . . . . . . . . 241
       8.11      CECD Bank - Central EM Calorimeter Current 
                 Channel Raw Data Bank  . . . . . . . . . . . . . 243
       8.12      CHCD Bank - Central Hadron Calorimeter Current 
                 Channel Raw Data Bank  . . . . . . . . . . . . . 245
       8.13      WHCD Bank - Endwall Calorimeter Current Channel 
                 Raw Data Bank  . . . . . . . . . . . . . . . . . 247
       8.14      LSAD Bank - Hadron Calorimeter Laser System ADC 
                 Bank . . . . . . . . . . . . . . . . . . . . . . 249
       8.15      LSTD Bank - Hadron Calorimeter Laser System TDC 
                 Bank . . . . . . . . . . . . . . . . . . . . . . 251
       8.16      CPND Bank - Central EM Calorimeter PIN Diode Raw 
                 Data Bank  . . . . . . . . . . . . . . . . . . . 252
       8.17      CPNX Bank - Central EM Calorimeter PIN Diode MX 
                 Calibration  . . . . . . . . . . . . . . . . . . 254
       8.18      SVXX Bank - Silicon Vertex Detector Xmode Data 
                 Bank . . . . . . . . . . . . . . . . . . . . . . 256
       8.19      CMXX Bank - Central Muon Extension Calibration 
                 Summary Bank . . . . . . . . . . . . . . . . . . 262
       8.20      CMPX Bank - Central Muon Upgrade Calibration 
                 Summary Bank . . . . . . . . . . . . . . . . . . 265
9. TEST BEAM DATA BANKS
       9.1       UEMD Bank - Plug Upgrade EM Calorimeter Bank . . 268
       9.2       UHAD Bank - Plug Upgrade HAD Calorimeter Bank  . 270
       9.3       UECD Bank - Plug Upgrade EM Calorimeter Currents 
                 Bank . . . . . . . . . . . . . . . . . . . . . . 272
       9.4       UHCD Bank - Plug Upgrade HAD Calorimeter 
                 Currents Bank  . . . . . . . . . . . . . . . . . 274
       9.5       UEPD Bank - Plug Upgrade EM Calorimeter Position 
                 Detector . . . . . . . . . . . . . . . . . . . . 276
       9.6       SABD Bank - Small Angle Beam Test Data . . . . . 278
       9.7       LSCD Bank - Test Beam Latch And Scaler Data Bank 281
       9.8       TBCD Bank - Test Beam Camac Data Bank  . . . . . 283
       9.9       TBSD Bank - Test Beam Stand Positions Data Bank  285
       9.10      SVTD Bank - SVX Temperature Detector Bank  . . . 287
       9.11      MAGD Bank - Test Beam MT5E-String Current Data . 289
10. LEVEL 3 BANKS
       10.1      L3HD Bank - Level 3 Header Bank  . . . . . . . . 292
       10.2      ENDD Bank - End Of Data Bank . . . . . . . . . . 297
11. ALARMS AND LIMITS BANKS
       11.1      FMUH Bank - Forward Muon High Voltage Bank . . . 301
       11.2      FTCH Bank - Forward Tracking High Voltage Bank . 303
       11.3      CESH Bank - Central Strip High Voltage Bank  . . 305
       11.4      CMUH Bank - Central Muon High Voltage Bank . . . 307
       11.5      CDTH Bank - Central Drift Tube High Voltage Bank 309
       11.6      VTPH Bank - VTPC High Voltage Bank . . . . . . . 311
       11.7      VTTH Bank - CTC And VTPC Temperature Tolerance 
                 Bank . . . . . . . . . . . . . . . . . . . . . . 313
APPENDIX A: DIFFERENCES BETWEEN VERSIONS
       A.1     DIFFERENCES BETWEEN V2.00 AND V1.00  . . . . . . . A-1
       A.2     DIFFERENCES BETWEEN V2.3 AND V2.2  . . . . . . . . A-2
       A.3     DIFFERENCES BETWEEN V2.31 AND V2.3 . . . . . . . . A-3
       A.4     DIFFERENCES BETWEEN V2.32 AND V2.31  . . . . . . . A-3
       A.5     DIFFERENCES BETWEEN V2.33 AND V2.32  . . . . . . . A-3
       A.6     DIFFERENCES BETWEEN V2.34 AND V2.33  . . . . . . . A-4
       A.7     DIFFERENCES BETWEEN V2.4 AND V2.34 - MARCH 5, 1987 A-4
       A.8     DIFFERENCES BETWEEN V2.41 AND V2.4 - MARCH 20, 
               1987 . . . . . . . . . . . . . . . . . . . . . . . A-4
       A.9     DIFFERENCES BETWEEN V2.42 AND V2.41 - MARCH 26, 
               1987 . . . . . . . . . . . . . . . . . . . . . . . A-5
       A.10    DIFFERENCES BETWEEN V2.43 AND V2.42 - APRIL 15, 
               1987 . . . . . . . . . . . . . . . . . . . . . . . A-5
       A.11    DIFFERENCES BETWEEN V2.44 AND V2.43 - MAY 26, 1987 A-5
       A.12    DIFFERENCES BETWEEN V2.5 AND V2.44 - SEPT 22, 1987 A-5
       A.13    DIFFERENCES BETWEEN V2.51 AND V2.5 - OCT 1, 1987 . A-6
       A.14    DIFFERENCES BETWEEN V2.52 AND V2.51 - OCT 7, 1987  A-6
       A.15    DIFFERENCES BETWEEN V2.53 AND V2.52 - OCT 28, 1987 A-6
       A.16    DIFFERENCES BETWEEN V2.6 AND V2.53 - NOV 20, 1987  A-6
       A.17    DIFFERENCES BETWEEN V2.61 AND V2.6 - DEC 27, 1987  A-7
       A.18    DIFFERENCES BETWEEN V2.70 AND V2.61 - APR 26, 1988 A-7
       A.19    DIFFERENCES BETWEEN V2.80 AND V2.70 - JUNE 20, 
               1988 . . . . . . . . . . . . . . . . . . . . . . . A-7
       A.20    DIFFERENCES BETWEEN V2.90 AND V2.80 - JULY 8, 1988 A-8
       A.21    DIFFERENCES BETWEEN V3.00 AND V2.90 - AUGUST 30, 
               1988 . . . . . . . . . . . . . . . . . . . . . . . A-8
       A.22    DIFFERENCES BETWEEN V3.10 AND V3.00 - MARCH, 1990  A-9
       A.23    DIFFERENCES BETWEEN V3.11 AND V3.10 - JUNE 1990  . A-9
APPENDIX B: VARIOUS DEFINITIONS
       B.1     EXPERIMENT TYPES . . . . . . . . . . . . . . . . . B-1
       B.2     RUN TYPES  . . . . . . . . . . . . . . . . . . . . B-1
       B.3     RECORD TYPES . . . . . . . . . . . . . . . . . . . B-2
       B.4     CDF COMPUTER IDS . . . . . . . . . . . . . . . . . B-2
       B.5     PARTITION NUMBERS  . . . . . . . . . . . . . . . . B-3
       B.6     PROCESS IDS  . . . . . . . . . . . . . . . . . . . B-3
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