Calibration Workshop 8 Sept 2000 1 Calorimeter Calibration: Calibration procedure and Database Definition Ursula Bassler, Mrinmoy Bhattacharjee, Leslie.

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Calibration Workshop 8 Sept Calorimeter Calibration: Calibration procedure and Database Definition Ursula Bassler, Mrinmoy Bhattacharjee, Leslie Groer, Evelyne Lebreton, Dean Schamberger, Vicky White

Calibration Workshop 8 Sept Calibration Constants Preamp/ Driver Trig. sum Filter/ Shaper x1 x8 SCA (48 deep) BLS Output Buffer Bank 0 Bank 1 SCA Calorimeter Calibration Calorimeter Electronics Trigger: no calibration BaseLineSubtractor: integer values -  ped , , 0-suppr. L3: “golden sample” -  ped , , 0-suppr., gain1, gain8 Reco:  ped , , 0-suppr., gain1, gain8

Calibration Workshop 8 Sept Calorimeter Read-Out Structure 1 crate  12 (preamp-box) 1 card  96 (motherboard) 1 channel  48 (4 towers  12 ”layers” ) 12 preamp -boxes  96 preamp-motherboards  4 towers  12 “layers” 12 BLS-crates  96 BLS-motherboards  48 channels 12 ADC-crates  96 ADC-cards  48 channels  smallest unit to be calibrated: 1 crate

Calibration Workshop 8 Sept CALIBRATION PROCEDURES : 2/3 times a week pedestal runs:  ped ,  pulser runs: gain1, gain8 ONLINE DATABASE: constants ordered by crate#, card#, channel # OFFLINE DATABASE: optimized format for reco possible after validation copy RECONSTRUCTION: 0-suppression parameters channel and gain inter- calibration constants updated L3: “golden sample ” TRIGGER: no calibration BLS: integers for 0- suppression constants updated Calibration Data Flow

Calibration Workshop 8 Sept cal_calib_package Reconstructed data chunk: physics units energies, ,  FE data chunk: unpacked format ADC hits, crate #, card #, tower #, layers# Calibration in the Reconstruction raw data chunk: packed format ADC hits, crate #, card #, tower #, layers# cal_unpack_package OFFLINE DATABASE: crate #, card #, tower #, layers#  ped , , 0-suppr., gain1, gain8 cal_calibrator: fills calorimeter calibration classes calibration manager: access to database for all subdetectors Calibrated data chunk: keeps ordering energies, crate #, card #, tower #, layers# cal_geom_package

Calibration Workshop 8 Sept Database Tables Structure - Offline cal_calibration calibration_id ped_cal_id pul_cal_id start Cal_ped_collection ped_cal_id ped_col_id crate _id cal_ped_values ped_col_id crate_id card_id channel_id mean sigma Cal_pul_collection pul_cal_id pul_col_id crate _id cal_pul_values pul_col_id crate_id card_id channel_id coeff_1 coeff_2 coeff_3 tables for online/offline should follow the same structure one additional table keeping calibration run information additional columns for online in orange 

Calibration Workshop 8 Sept valid pul :48 CC only4 not valid pul :23 debug preamp_box 13 valid pul :34 1 st pulser run2 valid ped :141 st pedestal run1 run_status run_type run_start run_description run-id cal_runs: additional table for the online database if possible: gives a unique run number to all calorimeter runs run_type: either pedestal or pulser run_status: valid if used for calibration constants non valid if debugging information

Calibration Workshop 8 Sept new CC pulser valuesvalid : st calibrationvalid : statusdescription start pul_cal_id ped_cal_id calibration_id cal_calibration: links different pedestal and calibration coefficient determination into a valid set of calibration constants status allows to invalid a given calibration validity given by the latest valid calibration

Calibration Workshop 8 Sept ped_col_id crate # run_id ped_cal_id cal_ped_collection: join table: gives link between run-id, calibration-id and collection-id for each different crate (example with 2 crates) to be optimized with designer tools similar table for pulser: cal_pul_collection time stamp should be added (ppt-problem)

Calibration Workshop 8 Sept crate_id card_id channel_id ped_col_key meansigma status valid valid valid valid non valid valid valid valid cal_ped_values: collection_key gives the link to calibration set status can be used to flag bad channels + pointer to error cause unique pointer can be defined and values stored in separate table

Calibration Workshop 8 Sept final database definition & design design with professional tools definition of offline database table and calibration classes Evelyne, Ursula creation of offline database tables and database server Evelyne with help from Fermilab sql to transfer data between online/offline database help from support database group creation of offline calibrator classes and code Evelyne, Ursula Software for database handling: