Practical trainings, student assistants and theses

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

• 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

• Duration: at least 3 months, the topic can easily be expanded into a thesis
• Start: anytime
• Workplace: Helmholtz-Zentrum Dresden – Rossendorf

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

• Studies in Physics, Physical Engineering (or a comparable field of study)
• Interest optics and laser physics
• Interest in experimental work

• Duration: at least 3 months, the topic can easily be expanded into a thesis
• Start: anytime
• Workplace: Helmholtz-Zentrum Dresden – Rossendorf

We are pleased to announce an open position for a research assistant to assist (f/m/d) with the coordination of Jugend hackt Lab Freiberg, a program for young people who want to use code to make the world a better place (https://jugendhackt.org/lab/freiberg/). The aim of Jugend hackt is to teach children how to program and use digital tools, with a particular focus on artificial intelligence.

Responsibilities:

• Plan, coordinate and execute activities for the Jugend hackt Lab Freiberg
• Finding and recruiting new mentors for the Lab
• Developing innovative methods to teach kids to program
• Engaging with our local community through activities and news outlets

• Excellent organizational and coordination skills
• An understanding of computer science and programming
• A passion for education and a strong desire to improve the lives of children
• Fluent in German
• Knowledge of artificial intelligence is an advantage.

Duration: first contract of 3 months, with a possible extension of 1 year.
Start: August 2024
Workplace: Helmholtz Institute Freiberg for Resource Technology & PiHaus Freiberg

Die Abteilung Finanzen, Finanzcontrolling und Drittmittel ist für das Finanzmanagement des Helmholtz-Zentrum Dresden-Rossendorf verantwortlich. Im Bereich Rechnungswesen (Haupt-, Banken-, Debitoren-, Kreditoren- und Anlagenbuchhaltung) wird Ihre Hilfe benötigt.

Ihre Aufgaben:

• Unterstützung (SAP) bei der Erfassung von Geschäftsvorfällen
• Unterstützung (SAP) bei der Stammdatenpflege, insbesondere Kreditoren
• Sonstige Unterstützungstätigkeiten

• Begonnenes Studium der Wirtschaftswissenschaften
• Erste Kenntnisse in den Grundlagen des Rechnungswesens (Buchführung, Kosten- und Leistungsrechnung)
• Selbstständige und verantwortungsvolle Arbeitsweise

• Arbeitsbeginn ab sofort
• Mindestens 6 Monate
• Tätigkeitsort: Standort Dresden-Rossendorf

Wir bieten Ihnen die Möglichkeit, im Studium Erlerntes praxisnah umzusetzen! Es erwarten Sie ein
motiviertes und kollegiales Arbeitsumfeld, tatkräftige Unterstützung bei der Umsetzung Ihrer Aufgaben sowie spannende Einblicke in die finanztechnische Schaltzentrale unseres Forschungsstandortes.

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

• 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

• 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