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SUMMARY:In-flight second order correction of PAMELA calorimeter characteri
 stics (for simulation in Geant4)
DTSTART;VALUE=DATE-TIME:20161011T121500Z
DTEND;VALUE=DATE-TIME:20161011T124500Z
DTSTAMP;VALUE=DATE-TIME:20260720T125114Z
UID:indico-contribution-548@cern.ch
DESCRIPTION:Speakers: Olga Dunaeva (P. G. Demidov Yaroslavl State Universi
 ty)\nSimulation of the PAMELA spectrometer characteristics is performed no
 w by Geant4 software package (in the PAMELA collaboration)\, which needs a
  detailed information about geometry\, materials etc. of scientific equipm
 ent. This data is taken from manufactures or obtained from different groun
 d-based tests including accelerators.\n\nBut the characteristics may chang
 e a bit during a launch or a long time of operation on the orbit. We propo
 se a method of in-flight correction of calorimeter characteristics. To cal
 culate them we select relativistic particles passing through the calorimet
 er without interactions and low-energy particles stopping inside it (Bragg
  curves or stopping power). We obtain correction values from a comparison 
 of various measurements between experimental data and simulation in assump
 tion that electromagnetic processes are performed in Geant4 with high prec
 ision.\n\nAs a result\, characteristics of silicon sensors and tungsten ab
 sorber of calorimeter are refined. Correction values are within $\\approx5
 \\%$ of the original values.\n\nhttps://indico.particle.mephi.ru/event/4/c
 ontributions/548/
LOCATION:Milan Hotel Hall of the 2nd floor
URL:https://indico.particle.mephi.ru/event/4/contributions/548/
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