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| = HCal Electrinics Intercalibration = | = HCal Electronics Intercalibration = Constants of the electronics intercalibration have units [ADUc/ADUp], where ADUc and ADUp are ADC units in calibration and physics mode, respectively. == Storage / Availability == The constants are made available in the database in folder {{{ /cd_calice/Hcal/ic_constants }}} Every entry gets tagged to allow permanent reference. Users are encouraged to use tags rather than the HEAD, i.e. make sure they know which assumptions are valid on the constants they use. === Tag description: ic_constants === ||<tablestyle="width: 90%" style="width: 10%; text-align: center;"> '''Tag''' ||<style="text-align: center;">'''Time / [[RunningPeriods|HV Period]]''' ||<style="text-align: center;"> '''Description''' || || '''ahc_ic_constants_001''' || 2006 - 2009 || Cleaned-up averages from CERN 2007 measurements. Missing values: use cleaned-up average from 2008 measurements, if available. || ||<rowspan=6> '''ahc_ic_constants_002''' || C06 ||<rowspan=2> Cleaned-up averages from CERN 2007 measurements. Missing values: use cleaned-up average from DESY re-calibration measurements, if available (modules 1, 2, 14, 25 only). || || C07 || || C08-1 ||<rowspan=4> Cleaned-up averages from FNAL 2008 measurements. || || C08-2 || || C08-3 || || C08-4 || || '''ahc_ic_constants_003''' || 2006 - 2009 || Copy of '''ahc_ic_constants_001''', add collection parameters for default values (default IC = 10) || || '''ahc_ic_constants_004''' || 2006 - 2009 || Copy of '''ahc_ic_constants_002''', add collection parameters for default values (default IC = 10) || ||<rowspan=2> '''ahc_ic_constants_005''' ||2006 - 2009 || same as '''ahc_ic_constants_004''' || || C10 || Value updated by Clemens, the value were extracted by Jara from C10. || === outdated intercalibration folders === The tags of some outdated intercalibration folders are still listed [[HCAL ic outdated|here]]. == Measurement == coming soon... == Clean-up Procedure == Since the spread of the differences between single measurements and the average values for each channel appears to be much larger than the expected 1-2% a selection procedure is applied to reduce it. All measured values for each single channel are sorted by size. Starting in the middle and going up, the relative differences between subsequent values are checked. As soon as a jump of more than 1% is encountered, the remaining values in this direction are removed. Afterwards, the same is done for the opposite direction, this time starting one value before the middle and going down. The remaining values are averaged. This reduces the spread mentioned above to the expected range. |
HCal Electronics Intercalibration
Constants of the electronics intercalibration have units [ADUc/ADUp], where ADUc and ADUp are ADC units in calibration and physics mode, respectively.
Storage / Availability
The constants are made available in the database in folder
/cd_calice/Hcal/ic_constants
Every entry gets tagged to allow permanent reference. Users are encouraged to use tags rather than the HEAD, i.e. make sure they know which assumptions are valid on the constants they use.
Tag description: ic_constants
Tag |
Time / HV Period |
Description |
ahc_ic_constants_001 |
2006 - 2009 |
Cleaned-up averages from CERN 2007 measurements. Missing values: use cleaned-up average from 2008 measurements, if available. |
ahc_ic_constants_002 |
C06 |
Cleaned-up averages from CERN 2007 measurements. Missing values: use cleaned-up average from DESY re-calibration measurements, if available (modules 1, 2, 14, 25 only). |
C07 |
||
C08-1 |
Cleaned-up averages from FNAL 2008 measurements. |
|
C08-2 |
||
C08-3 |
||
C08-4 |
||
ahc_ic_constants_003 |
2006 - 2009 |
Copy of ahc_ic_constants_001, add collection parameters for default values (default IC = 10) |
ahc_ic_constants_004 |
2006 - 2009 |
Copy of ahc_ic_constants_002, add collection parameters for default values (default IC = 10) |
ahc_ic_constants_005 |
2006 - 2009 |
same as ahc_ic_constants_004 |
C10 |
Value updated by Clemens, the value were extracted by Jara from C10. |
outdated intercalibration folders
The tags of some outdated intercalibration folders are still listed here.
Measurement
coming soon...
Clean-up Procedure
Since the spread of the differences between single measurements and the average values for each channel appears to be much larger than the expected 1-2% a selection procedure is applied to reduce it. All measured values for each single channel are sorted by size. Starting in the middle and going up, the relative differences between subsequent values are checked. As soon as a jump of more than 1% is encountered, the remaining values in this direction are removed. Afterwards, the same is done for the opposite direction, this time starting one value before the middle and going down. The remaining values are averaged. This reduces the spread mentioned above to the expected range.