Designing a Portable Halbach Permanent Magnet for Low-Field MRI

Forschungsthema/Bereich

MRI hardware development and FEM simulation

Typ der Abschlussarbeit

Master

Startzeitpunkt

-

Bewerbungsschluss

30.07.2026

Dauer der Arbeit

6 months

Beschreibung

Low-field, portable MRI is an emerging direction for making magnetic resonance imaging more accessible and deployable outside conventional imaging suites. In this project, you will develop a low-field magnet for portable MRI based on compact neodymium permanent magnets arranged in a Halbach configuration. The magnet must provide a large bore suitable for imaging samples with diameters of approximately 15 cm, while achieving the magnetic field homogeneity required for MRI.
Your tasks
• Perform FEM simulations (e.g., COMSOL) to optimize the magnet design, including geometry and the number, placement, and alignment of the neodymium magnets
• Design and fabricate mechanical scaffolds/fixtures to precisely position and hold the magnets (via laser cutting and/or 3D printing or other mechanical manufacturing methods)
• Assemble the magnet system and ensure robust mechanical fixation and alignment
• Characterize the magnet by magnetic field scanning with a suitable sensor and generate 3D field maps to evaluate homogeneity

Voraussetzung

Voraussetzungen an Studierende

• Experience with (or strong interest in) COMSOL or other FEM tools is encouraged;
• Experience with CAD and prototyping;
• Fluent English, good communication and presentation skills;
• Enthusiasm to work in a multidisciplinary environment.

Studiengangsbereiche

• Ingenieurwissenschaften
  Mechatronik & Informationstechnik
  Mechanical Engineering
  Electrical Engineering and Information Technology
  Mechatronics and Information Technology
• Naturwissenschaften und Technik
  Physik
  Physics

Betreuung

Titel, Vorname, Name

Dr. Sören Lehmkuhl and Dr. Mazin Jouda

Organisationseinheit

Institute of Microstructure Technology (IMT)

E-Mail Adresse

soeren.lehmkuhl@kit.edu

Link zur eigenen Homepage/Personenseite

Website

Bewerbung per E-Mail

Bewerbungsunterlagen

• Anschreiben
• Lebenslauf
• Notenauszug

E-Mail Adresse für die Bewerbung
Senden Sie die oben genannten Bewerbungsunterlagen bitte per Mail an soeren.lehmkuhl@kit.edu


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