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Návrh křemíkového detektoru pro experiment Belle II
Kovaľ, Jozef ; Kodyš, Peter (advisor) ; Kvasnička, Peter (referee)
This bachelor thesis deals with the verifying of energy losses and checking the implementation of material into software on the inner tracking detector in the Belle II experiment in Japan. The Basf2 framework, which is developed especially for this experiment, was used for this confirmation. First part of the thesis theoretically describes the Belle II experiment, it's inner pixel silicon detector DEPFET and also describes software and analytics framework - Basf2, which is developed for Belle II. Second part presents the knowledge about the energy losses of the particle passing through matter. The last part compares theoretical values with the values acquired from the basf2 simulation.
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Testování polovodičových detektorů typu DEPFET
Malina, Lukáš ; Kodyš, Peter (advisor) ; Doležal, Zdeněk (referee)
DEPFET pixel detectors were developed more than 20 years ago and they are still being improved, for example on Belle II experiment in Japan. In this thesis we studied the properties of readout cycle of detector matrix and the movement of counted hit positions close to the edges of DEPFET matrix, the which is reffered to as edge effect. The main goal of this work was to familiarize with particle detectors and their principles, especially with DEPFET matrices, to set up laser test system and to write ROOT macro for measurement automatization, run the measurement and analyze obtained data. For this purpose we used red 3 nanosecond long laser pulses, moving stages with very fine step and two connected pulse generators. As a result, the voltage between the outer ring and the inner part of the detector active area was optimalised, the edge effect was reduced by a factor of 2. The time properties of readout cycle, the time period of charge clearing and the time in which is the matrix read out, have been found.
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Vývoj křemíkového detektoru pro experiment Belle II
Bilka, Tadeáš ; Kodyš, Peter (advisor) ; Černý, Karel (referee)
This bachelor thesis describes a simulation of the DEPFET pixel semiconductor detector. The DEPFET detector is a key part of a newly constructed Belle II particle detector being built in KEK, Japan. The simulation is made as a package for the basf2 framework, developed for the Belle II experiment. The goal of this thesis was to learn about the Belle II experiment, DEPFET pixel detector and the basf2 framework and to develop a simulation environment, depicting experimental setup at CERN's SPS accelerator in 2009. First part of this thesis describes the Belle II detector, the basf2 framework and summarizes basic information about silicon particle detectors, especially about the DEPFET technology. A task for the analysis of the data is to evaluate residuals after particle track fitting and cluster information in the pixel detector. Finally the simulation with thinned DEPFET sensor being developed for the Belle II is done.
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Programming of drivers of external devices and data evaluation in C++
Kaščák, Kamil ; Lokoč, Jakub (referee) ; Kodyš, Peter (advisor)
In the present work we study current status of drivers for external devices in clean room in Institute of Particle and Nuclear Physics. In this work we analyse existing software and create a new driver for communication through RS232 port. Work studies various possibilities of serial communication in Windows and Linux and creates possible design for driver, which is based on creating universal layer for supplying communication between user programs and external devices. Work describes important steps of implementation in both operating systems. Next part consists of user documentation for created software. This documentation focuses on di erences of usage in Windows and Linux. At the end work shows report from testing software with real devices and gives advices, which should programmer follows when creating similar software solution.
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Communication with external devices in laboratory
Vachna, Michal ; Lokoč, Jakub (referee) ; Kodyš, Peter (advisor)
In the present work the goal is to map present circumstances of computer infrastructure in the physical laboratory, examine the demands and problems at work in the laboratory such as data backup, remote control, disk space sharing, access organization of processes to external devices, version control of measuring application development, running processes on remote hosts. Assess existing solutions, consider the possibility of improvements and propose new solutions appropriate to the needs of the laboratory. As far as possible, in regard to the current operations of the laboratory, implement solutions to selected problems and requirements. The work has to be methodical material and guide for further development of the laboratory in the coming years.
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