Changes for page Héctor Álvarez Pol

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1		-=== Speeding up the numerical solution of the Boltzmann Equation in Diffusion Approximation ===
2		-==== Supervisor: Sergio Barrera Cabodevila
	1	+=== Detector alignment in the new High Energy Cave (HEC) of R3B at GSI-FAIR ===
	2	+==== Supervisor: Héctor Álvarez Pol
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5		-The Kinetic Theory framework is a state-of-the-art weak-coupling tool to explore the thermalization in heavy-ion collisions. The Boltzmann Equation in Diffusion Approximation (BEDA) is one particular implementation of a kinetic theory for which a GPU-based code has been recently developed. This code has an important issue of instabilities that significantly decreases its efficiency related to the numerical integration of the diffusion terms with the finite volume method. In this stay, we propose that the student modify this integration with a Crank-Nicolson method that does not suffer from these instabilities. The student will familiarize with the kinetic theory framework, very close to the kinetic description in statistical mechanics, as well as novel computational tools such as GPU programming. It is strongly recommended to have previous knowledge of basic computational techniques to solve partial differential equations. Prior C++ knowledge is also advisable.
	5	+The R3B (Reactions with Relativistic Radioactive Beams) experiment is a versatile reaction setup with high efficiency, acceptance, and resolution for kinematically complete measurements of reactions with high-energy radioactive beams. With the commissioning of the new FAIR accelerator facility, the R3B setup will be relocated to the newly constructed High Energy Cave (HEC), where it will receive high-intensity primary and secondary beams from the Super-FRS (Super Fragment Separator).
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	7	+The installation of detectors in this new cave demands precise alignment, which involves the use of scanning and surveying tools such as laser trackers, laser levels, and laser grids. Proper alignment is crucial to ensure the accurate positioning of detectors and to maintain the required tolerances in distances and angles for experimental setups.
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	9	+The summer student will be involved in the following tasks:
	10	+* A bibliographical review of alignment systems used in similar large-scale experimental facilities.
	11	+* An evaluation of commercial solutions for the alignment and surveying of detector components.
	12	+* The preliminary design and proposal of a permanent alignment station capable of reliably (re)locating detectors in the cave according to the positional tolerances specific to each detector system.
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	14	+This work will contribute to the successful relocation and calibration of the R3B setup in the High Energy Cave and ensure the experiment's readiness for high-precision measurements at FAIR.