KCDC User Manual KCDC - the KASCADE Cosmic Ray Data Centre Open Access Solution for the KArlsruhe Shower Core and Array Detector (KASCADE) KIT - University of the State of Baden-Wuerttemberg and National Research Centre of the Helmholtz Association Authors: Jürgen Wochele, Donghwa Kang, Doris Wochele, Andreas Haungs, Sven Schoo Address: Karlsruhe Institute of Technology (KIT) Institute for Astroparticle Physics (IAP) Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Internet: kcdc.iap.kit.edu www.kit.edu DOI: https://doi.org/10.17616/R3TS4P Version: V.2.20 Last update: 2021-06-07 2 TABLE OF CONTENTS 1 INTRODUCTION ............................................................................................................................................ 9 1.1 KCDC - The KASCADE Cosmic Ray Data Centre ..................................................................................... 9 1.2 KCDC Motivation ................................................................................................................................. 11 1.3 KCDC Data Overview ............................................................................................................................ 13 1.4 The KCDC Team ................................................................................................................................... 14 2 THE KASCADE-DETECTORS ......................................................................................................................... 15 2.1 The KASCADE-Grande Experiment ...................................................................................................... 15 2.2 The KASCADE Detector Array .............................................................................................................. 16 2.3 The GRANDE Detector Array ............................................................................................................... 19 2.4 The Central Detector ........................................................................................................................... 23 2.4.1 The Hadron Calorimeter ................................................................................................................... 24 2.4.2 The Trigger Layer .............................................................................................................................. 27 2.4.3 The Muon Chambers (MWPC).......................................................................................................... 29 2.4.4 The Limited Streamer Tubes ............................................................................................................ 30 2.4.5 The Top Trigger Cluster .................................................................................................................... 31 2.5 The Muon Tracking Detector ............................................................................................................... 32 2.6 The Piccolo Trigger Detector ............................................................................................................... 34 2.7 The LOPES Radio Antennas .................................................................................................................. 35 2.8 Location of KASCADE and the KSACADE Coordinate system ............................................................... 37 2.9 Active Time of the Detector Components ........................................................................................... 38 3 DATA ACQUISITION AND EVENT BUILDING ....................................................................................................... 41 3.1 KASCADE Grande Triggers ................................................................................................................... 41 3.1.1 Trigger Sources ................................................................................................................................. 41 3.1.2 Trigger Conditions and Trigger Thresholds ...................................................................................... 42 3.2 Event Building ...................................................................................................................................... 43 4 KASCADE DATA IN KCDC .......................................................................................................................... 45 4.1 Energy (E) ............................................................................................................................................. 47 4.1.1 Measured data ................................................................................................................................. 47 4.1.2 Simulated data ................................................................................................................................. 48 4.1.3 Formula for Energy Estimator .......................................................................................................... 48 4.2 Number of electrons and Number of muons (Ne, Nmu) ..................................................................... 50 4.2.1 Level 1 .............................................................................................................................................. 50 4.2.2 Level 2 .............................................................................................................................................. 51 4.2.3 Level 3 .............................................................................................................................................. 52 4.3 Age (Age) ............................................................................................................................................. 54 4.4 Shower Core Position (Xc, Yc) .............................................................................................................. 55 4.5 Shower Direction (Ze, Az) .................................................................................................................... 57 4.6 Energy Deposits per Station (EDeposit, MDeposit) ............................................................................. 59 4.6.1 e/ – Energy Deposits ....................................................................................................................... 60 4.6.2 Muon – Energy Deposits .................................................................................................................. 66 4.7 Arrival Times ........................................................................................................................................ 71 4.7.1 Number of detector stations with valid arrival times (ArrivalN) ...................................................... 72 III 1 4.7.2 Arrival Times per Station (Arrival) .................................................................................................... 73 4.7.3 Station ID (ArrivalS) .......................................................................................................................... 74 4.7.4 Distance to shower core ................................................................................................................... 75 4.7.5 Example ............................................................................................................................................ 76 4.8 Event Time (Datetime, GT, MT) ........................................................................................................... 77 4.9 Air Temperature and Pressure (T, P) ................................................................................................... 78 4.10 Run Number & Event Number ............................................................................................................. 80 4.11 UUID .................................................................................................................................................... 80 5 CALORIMETER DATA IN KCDC ................................................................................................................... 83 5.1 Hadron Number ................................................................................................................................... 83 5.2 Hadron Energy ..................................................................................................................................... 84 6 GRANDE DATA IN KCDC ............................................................................................................................ 87 6.1 Number of Charged Particles and Number of muons in GRANDE (Nch, Nmu) .................................. 88 6.2 GRANDE Age (Age) ............................................................................................................................... 90 6.3 GRANDE Shower Core Position (Xc, Yc) ............................................................................................... 91 6.4 GRANDE Shower Direction (Ze, Az) ..................................................................................................... 92 6.5 GRANDE Energy Deposits per Station (GDeposit) ............................................................................... 93 6.5.1 Number of active GRANDE detector stations (GDepositN) .............................................................. 94 6.5.2 GRANDE Energy Deposit for each detector station (GDeposit) ....................................................... 95 6.5.3 Station ID (GDepositS) ....................................................................................................................