Development of enhanced bubbling system via sparger for RASER-NMR

Research topic/area

Physik, Maschinenbau, Materialwissenschaft, Ingenieurwesen

Type of thesis

Bachelor / Master

Start time

30.11.2024

Application deadline

31.03.2025

Duration of the thesis

6 - 9 months

Description

Nuclear Magnetic Resonance (NMR) spectroscopy is a powerful analytical technique that uses the magnetic properties of selected atomic nuclei (i.e. 1H, 13C, 15N, 19F) to investigate molecular structures and the dynamics of processes. The detection signal can be amplified up to sub-millihertz range with RASER (Radio-frequency Amplification by Stimulated Emission of Radiation), which is an innovative technique in magnetic resonance. RASER operational principles are similar to a laser, but in the radio-frequency domain, where it creates a population inversion in nuclear spins, typically using para-hydrogen as a pumping mechanism, and coupling it with a high-Q resonator to achieve stimulated emission of radio waves.

In our research group in the Institute for Microstructure Technology (IMT), we focus on enhancing RASER-NMR throughput. In order to achieve the highest efficiency of the spin exchange, the pumped gaseuous para-hydrogen should be equivalently distributed within the sample volume. One of the prospective approaches includes implementation of the gas spargers, which is widely utilized in the gas delivery in liquids for filtration, bio – reactors, pharmacology, and food processing.

This project will involve tasks including:
• Developing a novel gas bubbling system for operation in confined spaces;
• Simulation of the prospective operation chamber;
• Design and fabrication of components with machining or additive manufacturing;
• Evaluation of the spin transfer efficiency;
• NMR spectroscopy with RASER.

You will be part of a larger team within the Institute of Microstructure Technology (IMT), which offers you the possibility to fabricate and test the processes and devices and gives you the opportunity to co-author conference and/or journal publications.

Requirement

Requirements for students

• Good academic record;
• Fluent English and/or German, good communication and presentation skills;
• Knowledge/experience in machining and additive manufacturing;
• Candidate should reside in Germany/EU;
• Self-motivation to work as a team member and independently;
• Enthusiasm to work in multidisciplinary, multicultural environment.

Faculty departments

• Engineering sciences
  Chemical & process engineering
  Mechanical engineering
  Material sciences & engineering

Supervision

Title, first name, last name

Dr. Emil Mamleyev, Dr. Sören Lehmkuhl

Organizational unit

Institute of Microstructure Technology

Email address

emil.mamleyev@kit.edu

Link to personal homepage/personal page

Website

Application via email

Application documents

• Cover letter
• Curriculum vitae
• Grade transcript
• Certificate of enrollment

E-Mail Address for application
Senden Sie die oben genannten Bewerbungsunterlagen bitte per Mail an emil.mamleyev@kit.edu


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