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Study of the electrical properties of the production silicon strip sensors and test structures for the ATLAS ITk Project
Zatočilová, Iveta ; Mikeštíková, Marcela (advisor) ; Kodyš, Peter (referee)
The properties of silicon detectors can be studied by evaluating electrical tests performed on them. The detection performance of silicon detectors is affected by damages caused by ionizing radiation, neutrons and gamma particles. Ionizing radiation causes bulk and surface damages in silicon detectors. This thesis studies the effects of gamma irradiation on silicon n+ -in-p diodes and their dependence on different initial diode's properties. The thesis also provides the summary of preproduction testing of silicon strip sensors carried out by the Czech ATLAS ITk Strip sensor collaboration at the Institute of Physics of the Czech Academy of Sciences. The silicon strip sensors will be a part of a new all-silicon Inner Tracker (ITk) of the ATLAS experiment that will replace current Inner Detector. The replacement is needed because of the upgrade of the Large Hadron Collider (LHC) into the High-Luminosity LHC.
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Modernizace vnitřního detektoru ATLAS
Mészárosová, Lucia ; Doležal, Zdeněk (advisor) ; Mikeštíková, Marcela (referee)
The main goal of this master thesis is, at first, to describe upcoming upgrade of ATLAS experiment in CERN in Switzerland and to describe the principle of strip silicon detectors. Then it is measurement and analysis of data from laser tests with two lasers: red and infra-red. Last but not least goal is to document the method of measurement and analysis of laser tests for the future laser tests. The text of the thesis is divided into five chapters. The first chapter is dedicated to the research facility CERN, its present experiment ATLAS and future experiment ATLAS Upgrade. The second chapter explains properties of semiconductors and the principle of strip semiconductor detectors. The third chapter describes whole measurement layout: a lab for testing, equipment needed for the tests and the whole system functioning. In the fourth chapter there are actual results from the laser tests. The tests were done on two end-cap prototype modules for ATLAS Upgrade with strip silicon sensors using two lasers: red and infra-red. The last chapter briefly explains the functions of macros that were created for measuring and analysing data from laser tests.
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Study of Radiation Damage in Silicon Strip Detector for ATLAS ITk
Zatočilová, Iveta ; Mikeštíková, Marcela (advisor) ; Marčišovská, Mária (referee)
Ionizing radiation causes bulk and surface damages in silicon detectors. The significant bulk damage is caused also by neutrons. Those damages in- fluence the detection performance of silicon strip detectors. The main purpose of this thesis is to study the effects of radiation damage in silicon strip sen- sors by performing electrical tests on them. Tested silicon strip sensors were designed for the replacement of the current Inner Detector of the ATLAS ex- periment by a new all-silicon Inner Tracker. This replacement is needed because of the upgrade of the Large Hadron Collider (LHC) into the High-Luminosity LHC. 1
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Study of Radiation Damage in Silicon Strip Detector for ATLAS ITk
Zatočilová, Iveta ; Mikeštíková, Marcela (advisor) ; Marčišovská, Mária (referee)
Ionizing radiation causes bulk and surface damages in silicon detectors. The significant bulk damage is caused also by neutrons. Those damages in- fluence the detection performance of silicon strip detectors. The main purpose of this thesis is to study the effects of radiation damage in silicon strip sen- sors by performing electrical tests on them. Tested silicon strip sensors were designed for the replacement of the current Inner Detector of the ATLAS ex- periment by a new all-silicon Inner Tracker. This replacement is needed because of the upgrade of the Large Hadron Collider (LHC) into the High-Luminosity LHC. 1
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Study of Detection Performance of Silicon Strip Sensors for ATLAS ITk Upgrade Project
Latoňová, Věra ; Mikeštíková, Marcela (advisor) ; Vorobel, Vít (referee)
The upgrade of the Large Hadron Collider into the High Luminosity Large Hadron Collider requires a complete replacement of the ATLAS Inner Detector by a new all-silicon Inner Tracker. For this reason a new micro-strip sensor type n+ -in-p was developed. These sensors are expected to have many advantages, such as higher radiation resistance, the ability to operate even if not fully de- pleted and faster response. The main purpose of this thesis is to study and evaluate the detection performance and radiation hardness of the n+ -in-p sen- sor type with the help of electrical characteristics performed on the delivered sensors. The obtained results are compared to the Market Survey Step-2 require- ments and in the case of the sensors designed for the ATLAS Inner Tracker also to the corresponding Technical Specification document. 1
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Tests of Semiconductor Detectors for ATLAS Upgrade
Sýkora, Martin ; Kodyš, Peter (advisor) ; Mikeštíková, Marcela (referee)
This thesis is focused on beta source tests of prototypes of ITk Strip modules at IPNP in Prague in the framework of the ATLAS Upgrade project. New expe- rimental apparatus will allow comparison of beta source test results with other testing methods including laser or test beam. I participated in the assembly of the whole apparatus, script development for a number of automated measurements using specialized ITSDAQ software and ROOT. Finally, summary of obtained properties of tested end-cap R0 DAQload with mini sensor is provided based on beta source tests and characterization of the readout chip. The resulting collec- ted charge value corresponds to 3.1 fC and together with often referred quantity signal-to-noise ratio, which equals 35, it is one of the most important results of the thesis. The experimental arrangement including overall analysis of results will be usable for the future production phase of the project. 1
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Modernizace vnitřního detektoru ATLAS
Mészárosová, Lucia ; Doležal, Zdeněk (advisor) ; Mikeštíková, Marcela (referee)
The main goal of this master thesis is, at first, to describe upcoming upgrade of ATLAS experiment in CERN in Switzerland and to describe the principle of strip silicon detectors. Then it is measurement and analysis of data from laser tests with two lasers: red and infra-red. Last but not least goal is to document the method of measurement and analysis of laser tests for the future laser tests. The text of the thesis is divided into five chapters. The first chapter is dedicated to the research facility CERN, its present experiment ATLAS and future experiment ATLAS Upgrade. The second chapter explains properties of semiconductors and the principle of strip semiconductor detectors. The third chapter describes whole measurement layout: a lab for testing, equipment needed for the tests and the whole system functioning. In the fourth chapter there are actual results from the laser tests. The tests were done on two end-cap prototype modules for ATLAS Upgrade with strip silicon sensors using two lasers: red and infra-red. The last chapter briefly explains the functions of macros that were created for measuring and analysing data from laser tests.
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