The Event Structure for the 1997 Test Beam Data

(28 March 1997)

80 Bytes Event Header: (4 Byte each)

  1. Software Version
  2. Run Number
  3. Event number
  4. Date
  5. Time
  6. Data Type
  7. 1997 (test key)
  8. Total Bytes per Event
  9. Number of VA1 chips
  10. ADC Gain for SDA module (ADC telescope)
  11. Total Number of LeCroy 2249 ADC Bytes
  12. Number of LeCroy 2249 ADC channel
  13. Total Number of LeCroy 2228 TDC Bytes
  14. Number of LeCroy 2228 TDC Channel
  15. Number of WA98 modules
  16. Number of WA98 channel (1024ch)
  17. -
  18. -
  19. -
  20. 1997 (test key)

Then the data follow:

all VA1
(1 Byte per channel, 128 ch per VA1, up to 29 VA1)

all ADC
(2Btye per channel, 12 ch. per ADC)

all TDC
(2Byte per TDC, 12 ch. per TDC)

all WA98
(1024 ch per WA98 segment, 1 Byte per Channel)