Difference between revisions of "CCDB Tables FDC"
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'''FDC/packageN/strip_gains''' | '''FDC/packageN/strip_gains''' | ||
{|class="wikitable" | {|class="wikitable" | ||
− | | style="width: | + | | style="width:200px;" | 12 rows, 192 columns |
− | | style="width: | + | | style="width:300px;" | gain correction factors |
|} | |} | ||
'''FDC/packageN/strip_pedestals''' | '''FDC/packageN/strip_pedestals''' | ||
{|class="wikitable" | {|class="wikitable" | ||
− | | style="width: | + | | style="width:200px;" | 12 rows, 192 columns |
− | | style="width: | + | | style="width:300px;" | ADC pedestals |
|} | |} | ||
'''FDC/packageN/strip_timing_offsets''' | '''FDC/packageN/strip_timing_offsets''' | ||
{|class="wikitable" | {|class="wikitable" | ||
− | | style="width: | + | | style="width:200px;" | 12 rows, 192 columns |
− | | style="width: | + | | style="width:300px;" | timing offsets (ns) |
|} | |} | ||
'''FDC/packageN/wire_timing_offsets''' | '''FDC/packageN/wire_timing_offsets''' | ||
{|class="wikitable" | {|class="wikitable" | ||
− | | style="width: | + | | style="width:200px;" | 6 rows, 96 columns |
− | | style="width: | + | | style="width:300px;" | timing offsets (ns) |
|} | |} | ||
Latest revision as of 12:18, 24 June 2014
Contents
Variations
No interesting variations at the moment.
Tables
The following tables exist for every FDC package, N=1-4:
FDC/packageN/strip_gains
12 rows, 192 columns | gain correction factors |
FDC/packageN/strip_pedestals
12 rows, 192 columns | ADC pedestals |
FDC/packageN/strip_timing_offsets
12 rows, 192 columns | timing offsets (ns) |
FDC/packageN/wire_timing_offsets
6 rows, 96 columns | timing offsets (ns) |
Non-package specific tables:
FDC/lorentz_deflections - 840 rows
x | Parameterization of lorentz deflections |
z | |
bx | |
bz | |
nx | |
nz |
FDC/fdc_drift_table (51 rows)
t | drift time (μs) in 100 micron steps |
FDC/fdc_parms
FDC_DRIFT_SPEED | 0.0055 | electron drift velocity |
FDC_WIRE_DEAD_ZONE_RADIUS | 3.5 | dead wire radius |
FDC_STRIP_DEAD_ZONE_RADIUS | 5.0 | other dead wire radius |
FDC_ACTIVE_AREA_OUTER_RADIUS | 48.5 | |
FDC_ANODE_CATHODE_SPACING | 0.5 | |
FDC_TWO_HIT_RESOL | 25. | |
FDC_WIRES_PER_PLANE | 96 | |
FDC_WIRE_SPACING | 1. | |
FDC_STRIPS_PER_PLANE | 192 | |
FDC_STRIP_SPACING | 0.5 | |
FDC_STRIP_GAP | 0.1 | |
FDC_MAX_HITS | 100 | |
FDC_K2 | 1.15 | |
FDC_STRIP_NODES | 3 | |
FDC_THRESH_KEV | 1. | threshold in keV |
FDC_THRESH_STRIPS | 5. | threshold in pC |
FDC_ELECTRON_CHARGE | 1.6022e-4 | electron charge in fC |
FDC_DIFFUSION_COEFF | 1.1e-6 | diffusion speed cm^2/s --> 200 microns at 1 cm |
FDC_TDRIFT_SIGMA | 3.6363636e-9 | The error on the drift time in the FDC, used to gaussianly smear incoming hits |
FDC_CATHODE_SIGMA | 150.0 | The error in the distance along the wire as measured by the cathodes (NOT including Lorentz effect, but including fluctuations due to ion trail density, in microns) |
FDC_PED_NOISE | 0.0 | The FDC pedestal noise is used to smear the cathode ADC values such that the position along the wire has the resolution specified by FDC_CATHODE_SIGMA, units in pC (calculated from FDC_CATHODE_SIGMA in SmearFDC) |
FDC_TIME_WINDOW | 1000.0E-9 | Time window for acceptance of FDC hits units in seconds |
FDC_HIT_DROP_FRACTION | 0.0 | Fraction of FDC hits to randomly drop (0=drop nothing 1=drop everything) |
Deprecated
The following tables should not be used anymore:
- FDC/fdc_drift2
- FDC/lorentz_deflectionsMarch2007
- FDC/strip_calib