03. Bachelor's Thesis

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https://nur.nu.edu.kz/handle/123456789/8197

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Browsing 03. Bachelor's Thesis by Subject "cosmic rays"

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    Particle detector calibration and performance for Horizon-T cosmic rays experiment
    (Nazarbayev University School of Science and Technology, 2017) Yessenov, Murat
    Due to large variation of particle density in EAS, a response linearity of each detector needs to be assessed. The number of photon in a photo multiplier tube (PMT) pulse allows inferring the deviation from linearity in each case. In order to obtain an approximate photon count of a pulse, a single photo-electron response pulse calibration for the R7723 PMT was conducted using low-level light pulse. Non-linearity measurements of PMT were conducted using the same setup. PMT signals were chosen such that their widths are comparable with the real data. Results included in this work show that the PMT signal is mostly linear and nonlinearity starts only at the upper end of ADC range.
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    Simulation activities for particle detectors R&D at Horizon-T and HorizonT-KZ cosmic rays experiments
    (Nazarbayev University School of Science and Technology, 2017) Duspayev, Alisher
    A nature of Ultra-high energy Cosmic Ray is one of the remaining open topics in the field of High Energy Physics. The modern detector systems are being designed and constructed to study this phenomenon. "Horizon-T" that is experiment located at Tien Shan high-altitude Science Station (TSHASS) near Almaty, Kazakhstan, is one of such systems, and there is work underway for a novel detector system "HorizonT-KZ" (HT-KZ). The HT-KZ is being developed by Nazarbayev University (NU) in collaboration with TSHASS and is planned to be installed here, at NU, Astana, Kazakhstan. A simulation of a single detector module that is aimed to determine the optimal detector arrangement and parameters is a significant part of the R&D process. A description and a discussion of the results of the simulation runs are presented in this thesis.