Thesis presentation - APC

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FRAMEWORK I – Presentation II – Experimentation on the Orsay tank -Photomultiplier tubes, bases and high voltage modules -Calibration, results and comparison with the Observatory surface detectors results III – Simulation - Results and comparison with experimentation IV –Pierre Auger Observatory - First results 12
Photomultiplier tubes (PMT) • PMT Orsay tank : Furnished by Auger collaboration Tested by the constructor Photonis Tested by Auger (UCLA) collaboration • PMTs Tests and characterization comparison with UCLA and Photonis • Studies : PMTs Gain => response study peak to valley ratio => response accuracy Linearity domain => dynamic range width => In black box => In tank 13
Page 1 and 2: PIERRE AUGER OBSERVATORY SURFACE DE
Page 3 and 4: FRAMEWORK I - Presentation II - Exp
Page 5 and 6: Surface array Čerenkov detectors :
Page 11: • Allow a detailed study of the s
Page 15 and 16: Bases and high voltage modules (HV)
Page 17 and 18: measured by Auger - UCLA collaborat
Page 19 and 20: Dynode to anode ratio measurements
Page 21 and 22: Detectors calibration unity VEM con
Page 23 and 24: Difference between the VEM and the
Page 25 and 26: Decay time (τ) Orsay test detector
Page 29 and 30: Parameters Wavelength dependent •
Page 31 and 32: Physical Processes • Čerenkov ef
Page 33 and 34: Auger VEM H Charge to amplitude rat
Page 35 and 36: Comparison between 1 PMT and the av
Page 39 and 40: Baseline stability Orsay => 0,00045
Page 41 and 42: Control data Evolution in time of t
Page 43 and 44: event 762238 - 18 tanks Cuve 105 So
Page 45 and 46: constant Muon flux and altitude ∝
Page 47: LED signals Black box Tank For the

Thesis presentation - APC

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