Practical trainings, student assistants and theses
Offer | All | School practical training | Master theses | Research Assistant | Holiday job | Student practical training | Volunteer internship | | Bachelor theses | Student Assistant | Compulsory internship |
---|---|
Institute/ Dep. | FKVF | FWDF | FWDF-P | FWDF-V | FWFI | FWGP-G | FWGT | FWIO-N | FWIO-T | FWIZ | FWKK | FWKT | FWPC | FWU | |
Formatting | Table | |
Beam shaping on the PENELOPE high-energy laser system (Id 439)
Bachelor theses / Master theses / Diploma theses / Student Assistant / Research Assistant
HZDR develops and operates two high-intensity lasers (DRACO and PENELOPE) as drivers for plasma-based accelerators — a novel concept for compact sources delivering ultra-short pulses of high-energy ions and electrons. We experimentally investigate plasma-based acceleration from the physical fundamentals to the application. - e.g., for free-electron lasers, as particle sources for radiobiological studies, or for neutron sources.
In order to realize such sources, a constant development and improvement of the laser system is paramount. One major point of interest for every high energy laser system is a well-defined beam shape. Within the scope of this work the already existing beam shaping at the PENELOPE laser on the basis of serrated apertures needs to be analyzed both numerically and experimentally. Alternative concepts to achieve suitable beam shaping capabilities shall be compared.
Focus of the work:
- Modeling of optical diffraction on serrated apertures, e.g., using Python
- Experimental verification of the diffraction pattern
- Data acquisition (near field, far field, propagation)
- Optimization of the shape of serrated apertures
- Introduction to alternative beam shaping concepts
- Data analysis and documentation
Department: Laser Particle Acceleration
Contact: Dr. Albach, Daniel, Dr. Löser, Markus
Requirements
Studies in Physics, Physical Engineering (or a comparable field of study)
Interest in optics and laser physics
Interest in experimental work
Interest in numerical methods in optics
Conditions
Duration: at least 3 months, the topic can easily be expanded into a thesis
Start: anytime
Workplace: Helmholtz-Zentrum Dresden – Rossendorf
Links:
Online application
Please apply online: english / german
Laser amplifier development on the PENELOPE high-energy laser system (Id 438)
Bachelor theses / Master theses / Diploma theses / Student Assistant / Research Assistant
HZDR develops and operates two high-intensity lasers (DRACO and PENELOPE) as drivers for plasma-based accelerators — a novel concept for compact sources delivering ultra-short pulses of high-energy ions and electrons. We experimentally investigate plasma-based acceleration from the physical fundamentals to the application.- e.g. for free-electron lasers, as particle sources for radiobiological studies, or for neutron sources.
In order to realize such sources, constant development and improvement of the laser system is paramount. The scope of this work lies in the analytical design, its optimization and the realization of a regenerative amplifier design. Such an amplifier is considered to replace one of the preamplifier stages (HGBA II) of the PENELOPE laser system. The amplifier design aims at >100 mJ of pulse energy at a repetition rate of 10 Hz, while the bandwidth supports laser pulses with a pulse duration of <150 fs.
Focus of the work:
- Design/modeling and optimization of the laser resonator using software support (e.g. RP Resonator or own script)
- Subsequent realization of the regenerative laser amplifier in the laboratory
- Data acquisition (near field, far field, spectrum)
- Optimisation of the laser pulse bandwidth and output energy
- Data analysis and documentation
Department: Laser Particle Acceleration
Contact: Dr. Löser, Markus, Dr. Albach, Daniel
Requirements
Studies in Physics, Physical Engineering (or a comparable field of study)
Interest optics and laser physics
Interest in experimental work
Conditions
Duration: at least 3 months, the topic can easily be expanded into a thesis
Start: anytime
Workplace: Helmholtz-Zentrum Dresden – Rossendorf
Links:
Online application
Please apply online: english / german
Development of Biomolecules for Selective Binding of Specific Short PFAS (Id 436)
Bachelor theses / Master theses / Diploma theses / Compulsory internship / Volunteer internship
The research project focuses on identifying biomolecules for the selective binding of short per- and polyfluoroalkyl substances (PFAS). The aim is to develop biomolecules for the targeted removal of short PFAS from aqueous solutions such as industrial wastewater. Using advanced screening methods, biomolecules or microorganisms that can interact with specific groups of short-chain PFAS compounds will be identified. Tasks include extensive literature research on relevant PFAS molecules and potential biomolecule ligands, method development for characterizing interactions and screening available biomolecules and microbes.
Department: Biotechnology
Contact: Dr. Kutschke, Sabine, Dr. Lederer, Franziska, Dr. Pollmann, Katrin
Requirements
- Studies in biotechnology, chemistry, environmental sciences, biochemistry, or a comparable field
- Interest in practical, interdisciplinary research
- Knowledge of fundamental biochemical and molecular biology principles and techniques
- Careful and independent working style
Conditions
- Work in an interdisciplinary and international team
- Working place language is English
- Duration of the internship or thesis according to the study regulations
- Starting date is flexible
Online application
Please apply online: english / german
Development of peptides for the modification of plastic surfaces prior to metallisation (Id 435)
Master theses / Diploma theses / Compulsory internship / Volunteer internship
The research project ‘Development of tailor-made peptides for the treatment of polymers before the metallization of plastics’ aims to develop a biomolecule-based system that enables the metallization of high-quality engineering plastics. Using phage surface display technology (PSD), peptides are selected and their binding behavior is characterized using suitable technologies to quantify the surface interaction. Our industrial partner tests suitable peptide sequences in practical polymer coating and metallization experiments.
Department: Biotechnology
Contact: Dr. Schönberger, Nora, Dr. Lederer, Franziska, Dr. Jain, Purvi
Requirements
- Studying biotechnology, microbiology, chemistry, chemical engineering, or a comparable subject area
- Interest in practical, interdisciplinary research
- Knowledge of basic molecular biological and microbiological principles and working techniques
- Careful and independent way of working
Conditions
- Work in an interdisciplinary and international team
- The workplace language is English
- Duration of the internship or thesis according to study regulations
- Start of work possible by February 2025 at the latest
Online application
Please apply online: english / german
Development and experimental investigation of a multi-channel flow body sensor (Id 421)
Bachelor theses / Master theses / Diploma theses / Compulsory internship
The development of a multi-channel flow body sensor according to patent WO 2010/069307 A1 aims to quantify the gas content in flow-carrying components. A decisive advantage of this sensor lies in its optical measuring principle, which is based on fiber-optic coupling and the analysis of the light output signal. This avoids electrical potentials in the measuring area, offering significant advantages over electrical measuring methods (intrinsic safety), especially for explosive mixtures.
Preliminary tests at the Institute for Experimental Fluid Dynamics at the Helmholtz Center Dresden-Rossendorf on gas-liquid flows showed that a clear binarization of the sensor output signal can be achieved due to the capillary effects in narrow channels and the different refractive indices of the gas and liquid phases. Building on previous work with a single-channel sensor prototype based on a polymer optical fiber (POF) with a diameter of 1 mm, the following tasks must be completed as part of further research.
Tasks:
- Adjusting the POF diameter to 1.5 mm in the single-channel configuration.
- Conducting experimental investigations of the new single-channel prototype using the already developed test system and evaluation programs.
- Designing a multi-channel sensor body for gas content measurements in the system.
- Developing a transition adapter to optimize the flow distribution between the DN10 flow pipe and the sensor body.
Department: Fluid process engineering
Contact: Condriuc, Ivan, Dr. Kipping, Ragna
Requirements
- Students majoring in fields such as process engineering, mechanical engineering, or chemical engineering.
- Interest in fluid mechanics and the development of measurement technology.
- Experience with 3D CAD tools.
- Basic knowledge of Python programming
Conditions
Start date: 01.01.2025
Duration: according to the respective study regulations
Online application
Please apply online: english / german
Numerical investigation of particle mixing (Id 419)
Master theses / Diploma theses / Compulsory internship
Fine-grained solid particles from various industrial sources, which would otherwise be discarded, should ideally be processed to valuable products or inert residues. They contain valuable residuals, such as metals, that can be returned to the industrial cycle instead of being landfilled. This is one aim of the Helmholtz project FINEST in which this work is embedded.
The different finest powders need to be mixed and agglomerated for further processing. Our work in the project deals with the granular mixing. One aim is to describe particle flow based on the rheology of the bulk good while describing the mixing process among the particles using a transport equation.
The mixing process among particles is described by the transport equation. It needs to be coupled with the flow field of the particle bulk. The latter can be modelled by CFD, using e.g. FEM. Here, a rheologic model is required.
We are looking for someone with experience in CFD or other modelling to continue the implementation of this model.
Department: Particle dynamics
Contact: Baecke, Anna Magdalena, Dr. Lecrivain, Gregory
Requirements
- Student of e.g. Process Engineering, Chemical Engineering, Computational Engineering, Mechanical Engineering, …
- General interest in fluid mechanics and simulations
- Preliminary experience in CFD, ideally OpenFOAM
- Preliminary experience in code development (C++) optional
Conditions
- Start after September 2024
- Duration of internship or thesis according to study regulations
- Remuneration available, scholarship holders (e.g. ERASMUS+) welcome
Online application
Please apply online: english / german
2D Material Exfoliation Optimisation (Id 413)
Bachelor theses / Master theses / Diploma theses
**Tasks:**
1. Investigate various exfoliation methods for 2D material fabrication
2. Optimize exfoliation processes to achieve high-quality, thin layers
3. Characterize the synthesized 2D materials using advanced analysis methods
4. Evaluate the electronic, optical, and mechanical properties of the exfoliated 2D materials
5. Compare the performance of different exfoliation approaches and identify optimization
opportunities
Department: Nanomaterials and Transport
Contact: Zscharschuch, Jens
Requirements
**Requirements:**
1. Enrolment in a master's program in materials science, chemistry, physics, or a related field
2. Interest in nanomaterial science
3. Basic knowledge in the synthesis and characterization of materials
4. Experimental skills in handling laboratory equipment
5. Independent work mentality and ability to work in a team
Conditions
**We offer:**
1. An innovative research environment with state-of-the-art laboratory equipment.
2. Supervision by experienced scientists.
3. Opportunities to participate in scientific conferences.
4. Practical experience in the field of materials science.
The master's thesis has a duration of six months. Extension or adjustment of the duration can be
discussed with the supervisor.
Interested students are requested to submit their application documents, including a resume,
university transcript and a motivation letter.
Online application
Please apply online: english / german
Student internship, research assistant, school practical training, master/diploma thesis, compulsory internship (Id 407)
School practical training / Student practical training / Bachelor theses / Master theses / Diploma theses / Student Assistant / Holiday job / Compulsory internship / Volunteer internship / Research Assistant
At Helmholtz-Zentrum Dresden-Rossendorf (HZDR), over 1,500 employees from more than 70 nations are conducting cutting-edge research in the fields of ENERGY, HEALTH, and MATERIALS to address the major challenges facing society today.
The Center for Advanced Systems Understanding (CASUS), founded in Görlitz in 2019, is a German-Polish interdisciplinary research center focusing on data-intensive digital systems.
CASUS offers student internships in a wide range of scientific fields. You are welcome to apply and join CASUS if you are interested in gaining knowledge in the following research areas:
- Theoretical Chemistry
- Earth System Science
- Systems Biology
- Digital Health
- Computational Radiation Physics
- Theory of complex systems
- Dynamics of Complex Living Systems
- Machine Learning for Infection and Disease
Institute: CASUS
Contact: Dr. Mir Hosseini, Seyed Hossein, Mazur, Weronika, Dr. Calabrese, Justin, Dr. Martinez Garcia, Ricardo, Dr. Bussmann, Michael, Dr. Cangi, Attila, PD Dr. Kuc, Agnieszka Beata, Dr. Yakimovich, Artur, Dr. Knüpfer, Andreas, Dr. Schlechte-Welnicz, Weronika
Requirements
- Student in computer science, physics, chemistry, or related fields
- Student already enrolled at the university in Germany, Poland or Czech Republic (close exchange and attendance in the office preferable and combined with the moblie working from Germany combinable)
- Eager to learn new skills
- Strong motivation to work in a collaborative environment
- Preliminary experience in code development is an advantage
- Excellent communication skills in English and/or German or Polish
Conditions
- A vibrant research community in an open, diverse and international work environment
- Scientific excellence and extensive professional networking opportunities
- A wide range of qualification opportunities
- We support a good work-life balance with the possibility of part-time employment, mobile working and flexible working hours
- Either an immediate start or a start in 2024 is possible
Online application
Please apply online: english / german
Automatisierte Auswertung von 1D- und 2D-Ramanspektroskopischen Meßreihen (Id 393)
Bachelor theses / Master theses / Diploma theses
1D- und 2D-Ramanspektroskopische Meßreihen oder auch Maps liefern detaillierte ortsaufgelöste chemische Informationen über die untersuchten Proben. Damit kann z. B. die Komponentenverteilung in Stoffgemischen quantitativ bestimmt oder die Homogenität einphasiger Proben gezeigt werden. Andererseits lassen sich lokale Strukturveränderungen, Spannungszustände, Stapelfolgenänderungen in 2D-Materialien und Punktdefekte charakterisieren. Voraussetzung dabei ist eine möglichst engmaschige Datenerfassung bis hin zur Auflösungsgrenze der verwendeten Laserstrahlung sowie eine große Anzahl an Messpunkten. Mit modernen Spektrometern sind Messzeiten im Sekundenbereich gut realisierbar. Die Umsetzung der spektroskopischen in eine chemische Information erfordert dann die Extraktion von Parametern wie Schwingungsfrequenz, Intensität und Linienbreite durch Spektrenanpassung. Die Gerätesoftware bietet dafür nur eingeschränkte Möglichkeiten.
Im Rahmen einer Graduierungsarbeit oder Hilfstätigkeit soll in Zusammenarbeit mit dem HZDR-Rechenzentrum ein Auswertealgorithmus für die automatisierte Auswertung von 1D- und 2D-Ramanspektroskopischen Meßreihen entwickelt, an Beispielen getestet und dokumentiert werden.
Department: Nanocomposite Materials
Contact: Dr. Krause, Matthias
Requirements
1. Studium der Werkstoffwissenschaften, Physik oder Chemie
2. Interesse, Freude und Befähigung für wissenschaftliche Arbeit
3. Grundkenntnisse in Programmierung und sicherer Umgang mit Büro- und wissenschaftlicher Software
4. Sehr gute Englisch-Kenntnisse
Conditions
Die Arbeit ist in die umfangreichen Aktivitäten der Abteilung Nanoelektronik (FWIO) zu 2D-Werkstoffen eingebettet. Sie kann jederzeit aufgenommen werden.
Online application
Please apply online: english / german
Self-organized nanopattern formation on crystalline surfaces of III-V semiconductors (Id 341)
Master theses / Diploma theses
Various metals, semiconductors, and oxides form regular nanoscale surface patterns in a complex process of self-assembly under low energy ion irradiation. Depending on both instrinsic factors of the material and externally controllable irradiation conditions, nanopatterns of very different morphologies will form, making ion-induced pattern formation a highly complex process. We study this process with regards to the material properties of various elemental and compound semiconductors, their crystal structure and surface orientation, the influence of irradiation parameters, and the patterning kinetics. Thereby, we expect to obtain new insights into the complex process of ion-induced nanopattern formation in technologically relevant materials.
We offer several projects, focussing each on a specific semiconductor material and its behavior under ion irradiation. These projects comprise the preparation of nanopatterned surfaces by low energy ion irradiation, imaging these surfaces surfaces by atomic force microscopy and electron microscopy, the quantitative analysis of these data, as well as simulating the patterning process based on continuum equations or kinetic MonteCarlo models.
The experimental work on these projects should result a diploma or M.Sc. thesis in physics, material science, or a related field of study. The provide an introduction to research at a large scale facility (Ion Beam Center IBC) and opportunities for networking with HZDR specialists on nanoscale surface modification and characterization.
Department: Ion Beam Center
Contact: Dr. Erb, Denise
Requirements
-- completed B.Sc. studies or Vordiplom in experimental physics, materials science, or related subject
-- good command of German and/or English
-- ability to work independently and systematically
Conditions
-- place of work: HZDR, location Rossendorf
-- project duration: 12 months, flexible starting time
Links:
Online application
Please apply online: english / german
Materials for new solar power plants (Id 241)
Bachelor theses / Master theses / Diploma theses
Turmkraftwerke stellen die neueste Generation von Anlagen zur solarthermischen Elektroenergieerzeugung dar (s. Abbildung). Großflächige Spiegelanordnungen konzentrieren Sonnenlicht auf einen zentralen Absorber, wo es in Wärmeenergie umwandelt wird, die dann auf ein Wärmeträgermedium übertragen wird. Gegenüber der Photovoltaik hat die Solarthermie den inhärenten Vorteil, Energie zu speichern und bei Bedarf bereit zu stellen. Die Herausforderung für die weitere Erhöhung des Wirkungsgrades von Solarkraftwerken besteht in der Entwicklung von Werkstoffen mit einer Temperaturstabilität bis zu 800 °C an Luft.
Im Rahmen von Graduierungsarbeiten und Hilfstätigkeiten sollen thermisch stabile Beschichtungen für die Kernkomponenten von Solarturmkraftwerken entwickelt und getestet werden. Dabei kommen modernste in situ und ex situ Methoden wie Magnetronsputtern, Ellipsometrie, UV-vis-NIR-FTIR-Reflektometrie und Ramanspektroskopie zur Anwendung.
Zu diesem Themenbereich werden u. a. die folgenden Aufgabenstellungen angeboten:
i) Schichtabscheidung und Optimierung der optischen und elektrischen Eigenschaften von transparenten leitfähigen Oxiden für Solarkraftwerke;
ii) Entwicklung von neuartigen Absorber- und Wärmespeicherwerkstoffen für Solarkraftwerke;
iii) Design und Simulation von solarselektiven Beschichtungen für Solarkraftwerke.
Zur Charakterisierung der untersuchten Materialien stehen modernste in situ und ex situ Analysemethoden zur Verfügung. Die Arbeiten können jederzeit aufgenommen werden.
Department: Nanomaterials and Transport
Contact: Dr. Krause, Matthias
Requirements
1. Studium der Werkstoffwissenschaften, Physik oder Chemie
2. Interesse, Freude und Befähigung für experimentelle wissenschaftliche Arbeit
3. Grundkenntnisse in Programmierung und sicherer Umgang mit Büro- und wissenschaftlicher Software
4. Sichere Englischsprachkenntnisse (fließend oder besser)
Conditions
Internationale Forschungsumgebung, ortsübliche Aufwandsentschädigung