Difference between revisions of "CCDB Tables CDC"
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==Tables== | ==Tables== | ||
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'''CDC/MC/drift_func_parms''' | '''CDC/MC/drift_func_parms''' | ||
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==Deprecated== | ==Deprecated== | ||
− | The following tables should not be used anymore: | + | The following tables/variations should not be used anymore: |
* '''CDC/cdc_drift''' - parameterized time-to-distance function | * '''CDC/cdc_drift''' - parameterized time-to-distance function | ||
+ | * '''CDC/cdc_gas_drift''' | ||
+ | * '''CDC/drift_parms''' | ||
+ | |||
+ | These are (not anymore) interesting variations related to the CDC: | ||
+ | |||
+ | * '''CDC_8mm_0T, CDC_9mm_0T, CDC_10mm_0T''' - versions of time-distance tables for different sized straws, no magnetic field. only 25 tables generated, with mixtures of 47/53 to 53/47 of Ar/CO2, in 0.25% increments. |
Revision as of 19:09, 3 June 2014
Contents
Variations
There are no interesting variations at the moment.
Tables
CDC/timing_offsets
1-3522 | timing offset, t0 (ns) |
CDC/wire_gains
1-3522 | gain correction factor |
CDC/wire_alignment (3522 rows)
dxu | upstream wire end displacement - X |
dyu | upstream wire end displacement - Y |
dxd | downstream wire end displacement - X |
dyd | downstream wire end displacement - Y |
CDC/alignment
CDC_ALIGN_UPSTREAM_DZ | upstream endplate z displacement |
CDC_ALIGN_DOWNSTREAM_DZ | downstream endplate z displacement |
CDC_SAG_RADIUS |
CDC/MC/drift_func_parms
CDC_DRIFT_A | Transverse drift function parameters |
CDC_DRIFT_B | |
CDC_DRIFT_C | |
CDC_DRIFT_D | |
CDC_DRIFT_A_L | Longitudinal drift function parameters |
CDC_DRIFT_B_L | |
CDC_DRIFT_C_L | |
CDC_DRIFT_D_L |
CDC/fit_parms
CDC_VARIANCE_A | Kalman filter parameters |
CDC_VARIANCE_B | |
CDC_VARIANCE_C |
CDC/cdc_parms
CDC_TDRIFT_SIGMA | 2.8181818181818e-9 | The error on the drift time in the CDC, used to gaussianly smear actual CDC hits. |
CDC_TIME_WINDOW | 1000.0E-9 | The time window for which CDC hits are accumulated (in sec), used for background determination |
CDC_PEDESTAL_SIGMA | 0.00000006 | The error in the energy deposition measurement in the CDC due to pedestal noise |
CDC_DRIFT_SPEED | 0.0055 | CDC drift speed (unit?) |
CDC_TWO_HIT_RESOL | 25. | time window for two hit resolution (in ns) |
CDC_MAX_HITS | 100 | number of hit per readout channel |
CDC_THRESH_KEV | 1. | threshold applied (in KeV) |
CDC_STRAW_RADIUS | 0.8 | straw radius (in cm) |
Deprecated
The following tables/variations should not be used anymore:
- CDC/cdc_drift - parameterized time-to-distance function
- CDC/cdc_gas_drift
- CDC/drift_parms
These are (not anymore) interesting variations related to the CDC:
- CDC_8mm_0T, CDC_9mm_0T, CDC_10mm_0T - versions of time-distance tables for different sized straws, no magnetic field. only 25 tables generated, with mixtures of 47/53 to 53/47 of Ar/CO2, in 0.25% increments.