Abstract:

Our role in this development is to make a theoretical analysis and a prediction for experimental validation of the concept of Laser Guide Star enhanced by quantum control methodology. Quantum control implies a design of the laser radiation properties to obtain a predetermined response in the atomic vapour. In Raman spectroscopy, the strength of the Raman signal is determined by the induced polarization in the atmospheric sodium. This quantity is determined by quantum coherence, maximizing which would thus optimize the Raman signal. We will perform a rigorous investigation, both theoretical and experimental, on the validity of the quantum control technique known as Fractional Stimulated Raman Adiabatic Passage (F-STIRAP) to enhance the guiding signal from artificial stars in the telescope. The theoretical portion of the project will imply the development of a semi-classical model and writing a Python code to numerically analyse propagation effects of the laser radiation and the generated coherent signal from distant atmospheric sodium. We will propose a control technique to increase chemical selectivity of Raman excitation and to improve spectral resolution of the signal. We will determine the range of the laser parameters that provide the optimal conditions for a strong Raman signal generation from the atmospheric sodium.

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Abstract:

The project will consist of the addition of proton data to the nuclear reaction cross-section database as these data are currently not included and protons are very important both for heavy-ion therapy and for radiation protection in space.

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Abstract:

The SIS100 superconducting cryo-modules are connected to each other with so-called splices – electrical connections with a residual resistance of few nanoohms at cryogenic condition. Keeping this resistance low is extremely important for the proper operation of superconducting circuits. Therefore, development of a splice resistance monitoring system is strongly recommended. Typically, such a measurement is performed by using high precision (8½ digit) voltmeters and high current source. The aim of the project is to provide an alternative measurement method using the already existing data acquisition function of the QuD system. Despite of the limited resolution of QuD channels, the new signal-processing concept was investigated showing that the method can be successfully applied in practice. This project aims the complete development of the signal processing software, which later on will be a part of the SIS100 machine monitoring system.

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Abstract:

The subject of the internship will be to adopt the Kalman Filter package for femtoscopic measurements with strange hyperons in the CBM experiment at FAIR. The developed software will be used to study the CBM performance with Monte Carlo simulations using heavy-ion event generators and the GEANT model of the CBM detector subsystems.

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Abstract:

FAIR will host many circular synchrotrons and storage rings. The work-horse for most of these machines are the capacitive pick-up systems. These pick-ups provide turn-by-turn position information, particle phase advances and are extremely important for day to day operations. FAIR machine will cope with unprecedented large dynamic range in beam currents, and therefore a very flexible and robust front-end electronics is under development. One of the options in this regard is the usage of transformer based hybrids. The goal of this thesis will be to design and evaluate the hybrids in operation conditions. Further it will be matched it with the back-end electronics and data acquisition system. The student will get experience will real world electronics design concepts and a good design might even be tested with beam in SIS-18.

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