Abstract:

One of the key components of the accelerator control system is the Scalable Control Unit (SCU) – an FPGA platform with integrated Intel Atom-based PC-class computer, a precision timing receiver and a flexible backplane interface for controlling slave modules.
SCUs are deployed in a large number over the whole machine, being the basic interface between the accelerator network and physical devices.
Our latest development, SCU 4, will incorporate an AVR microcontroller (ATXMega64) for internal health monitoring and power management.
The key task of this project is to develop firmware for it.

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Abstract:

Software defined radio is a signal processing paradigm where most of the signal processing can be performed and optimized by means of high level programming. This is in contrast to dedicated analog hardware or application specific digital processors utilized in the past. This paradigm is especially suited to low volume custom devices for particle accelerator applications. In this project, the RFNoC framework will be explored for implementation of advanced feedback controllers and particle counters. More details of the project can be obtained on contact via email.

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Abstract:

X-ray standing waves are created by the interference of X-rays reflected from a suitable thin film multilayer stack. By fabricating it on a probe magnetic film with strong spin-lattice coupling, we want to non-destructively probe depth sensitive properties of the magnetic film. Advanced light sources such as 3rd generation synchrotron PETRA III at DESY provide excellent sources of X-rays for this purpose. Our innovative in-house Sputter deposition system will be used for fabricating the multilayer stack. Using simulations as well as experimental characterization, the successful candidate will optimize the fabrication process of and deposit the X-ray standing wave generator. This internship will be at Helmholtzcenter Jena

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Abstract:

The Helmholtz Institute Jena is an outstation of the GSI Helmholtz Center for Heavy Ion Research on the campus of the Friedrich Schiller University of Jena. Additional partner institutes are the Helmholtz centers DESY and HZDR. The institute is mainly focused on applied and fundamental research at the borderline of high-power lasers and particle accelerator facilities.

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Abstract:

ARTEMIS is a precision Penning ion trap experiment for laser and microwave spectroscopy on highly charged atomic ions (HCI). The ions are produced in Electron Beam Ion Trap sources or at the accelerator facility of GSI with its storage rings SIS and ESR, and the HITRAP facility. The magnetic field (7 Tesla) is provided by a superconducting magnet. Trapped ions are non-destructively detected with RF resonance circuits by the image currents induced in the trap electrodes cooled to T = 4 Kelvin. The successful candidate will optimize experimental trapping techniques and perform spectroscopy on HCI for testing atomic theory calculations.

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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 EXPERT setup is aimed at studies of exotic nuclear structure of unbound isotopes which are created in reactions with radioactive beams and decay in flight. Trajectories of decay products are tracked by the microstrip detectors. The new generation detectors FOOT are currently under tests in lab, and the project work is in conducting measurements of cosmic rays by the FOOT detectors operated by the local DAQ (newly developed from the detector lab Peruja University, which must be adapted to the GSI environment)

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Abstract:

The goal of the project is the development of analysis algorithms for the DEGAS Ge detector system. The unusual detector geometry of DEGAS requires dedicated algorithms to account for cross-scattered gamma rays in addback and anti-Compton mode. Another peculiarity is obtaining proper time spectra from FEBEX data. Here walk effects and the White rabbit time reference need to be taken into account.

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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 identification and reconstruction of strange particles in the CBM experiment at FAIR. As part of the work, it is envisaged to study the CBM performance for reconstruction of the strange particles (such as neutral kaons and lambda hyperons) via their weak decays using the Kalman filter package.

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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:

The subject of the internship will be software development for particle identification in the CBM experiment and testing it 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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Abstract:

Optical transition radiation is a well know phenomenon where light is emitted when a charged particle crosses the boundary of two materials with a different permittivity. Its usage is widespread in electron machines. Recently, GSI did some pioneering measurements with ion beams towards profile measurements. In this thesis, expected light with different energies, charge states, target materials will be calculated. Following that, appropriate optical beamline will be designed for obtaining maximum light from the OTR radiator.

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Abstract:

The aim of the project is to characterise specific aspects of role-based access control, analyse the key requirements in close collaboration with the stakeholders in the controls department, suggest software and database solutions for integration, design, implement and test the solution in the Controls Integration system. The technical solution shall be validated in the Controls Integration (test) environment and at the existing GSI machines.

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