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National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
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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Characterization of RCo2 singlecrystal
 Latoňová, Věra ; Prchal, Jiří (advisor) ; Prokleška, Jan (referee)
The bachelor's thesis deals with the characterization of the cubic DyCo2 single crystal along three principal crystallographical orientations. Mea- surements which were so far performed mainly on polycrystals of the RCo2 group were carried out and evaluated. Measurements of electric resistivity, heat capa- city, magnetization and AC susceptibility showed the first-order magnetic phase transition at Curie temperature TC ≈ 142 K. From magnetization curves the easy [100] and the hard [110] axis was determined. Apart from the basic characterizati- on another interesting effects were found: stairlike development of magnetization curves along [100] at 2 K and an unknown anomaly in the phase component of the magnetic susceptibility at 70 K. Measurement of the AC susceptibility in the pa- ramagnetic area performed to check the presence of the so called parimagnetism did not show any anomaly that had been observed by polycrystalline samples - similar to other single crystals. 1
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