000002207 001__ 2207
000002207 005__ 20210127211251.0
000002207 037__ $$aBELLE2-MTHESIS-2021-001
000002207 041__ $$aeng
000002207 100__ $$aMichael Jeandron
000002207 245__ $$aDetermination of the gyro-electric reflection and transmission coefficients in the fused quartz iTOP cherenkov particle ID detector at the Belle II experiment
000002207 260__ $$aOxford, MS$$bUniversity of Mississippi$$c2019
000002207 300__ $$a65
000002207 500__ $$aPresented on 06 12 2019
000002207 502__ $$aMSc$$bOxford, MS, University of Mississippi$$c2019
000002207 520__ $$aThe thesis presents new results for the reflection and transmission coefficients for Cherenkov photons in a strong magnetic field at the interface between the fused quartz of and the surrounding nitrogen gas within the iTOP particle detector, a sub-system of the Belle II experiment. The iTOP is a component of the particle identification system at Belle II which distinguishes between kaons and pions in final states after collision. These coefficients are important in understanding how photons propagate through the iTOP taking into consideration polarization at the reflection and transmission interfaces in the Belle II magnetic field because the polarization affects the light collection effciency of the detector.  A new coordinate system was employed which is valid for any face of the iTOP. Solutions for the electric and magnetic fields were found and verified using several wave equations that were derived from Maxwell's equations. Boundary conditions at the interface were written in the new coordinate system and solved to find the coefficients. These coefficients will be used in Monte Carlo simulations of photons propagating within the iTOP.
000002207 700__ $$aRobert Kroeger$$edir.
000002207 8560_ $$fjake.bennett@desy.de
000002207 8564_ $$uhttps://docs.belle2.org/record/2207/files/BELLE2-MTHESIS-2021-001.pdf
000002207 980__ $$aTHESIS