Niklas Hackelberg, M.Sc.

Portrait of Niklas Hackelberg

Fraunhofer-Einrichtung für Individualisierte und Zellbasierte Medizintechnik IMTE
Mönkhofer Weg 239a
23562 Lübeck
- Postanschrift -

Technische Universität Hamburg (TUHH)
Institut für Biomedizinische Bildgebung
Gebäude E, Raum 4.044
Am Schwarzenberg-Campus 3
21073 Hamburg

E-Mail: niklas.hackelberg(at)imte.fraunhofer.de
E-Mail: niklas.hackelberg(at)tuhh.de
ORCID: https://orcid.org/0000-0002-0976-9049

Research Interests

  • Magnetic Particle Imaging
  • Image reconstruction in MPI, MRI and CT
  • Parallel computing in Julia

Curriculum Vitae

Niklas Hackelberg is a PhD student in the group of Tobias Knopp for Biomedical Imaging at the University Medical Center Hamburg-Eppendorf and the Hamburg University of Technology. In addition, he works as a software engineer at the Fraunhofer Research Institution for Individualized and Cell-Based Medical Engineering IMTE in Lübeck. He studied Computer Science at the Technical University of Hamburg from 2014 to 2021, where he earned his Master's degree with a thesis on "Development of a Scalable and Real-Time Capable Data Acquisition System for Magnetic Particle Imaging."  

Journal Publications

[192155]
Title: 3-D Magnetic Field Camera With Subsecond Temporal Resolution.
Written by: F. Foerger, M. Boberg, N. Hackelberg, P. Heinisch, K. Ostaszewski, J. Faltinath, P. Suskin, F. Thieben, F. Mohn, P. Jürß, M. Möddel and T. Knopp
in: <em>IEEE Sensors Journal</em>. (2026).
Volume: <strong>26</strong>. Number: (1),
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DOI: https://doi.org/10.1109/JSEN.2025.3629803
URL: https://ieeexplore.ieee.org/document/11244237
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Note: article

Abstract: Accurate and efficient volumetric magnetic field measurements are essential for a wide range of applications. Conventional methods are often limited in terms of measurement speed and applicability or suffer from scaling problems at larger volumes. This work presents a proof-of-concept field camera designed to measure magnetic fields within a spherical volume at a frame rate of 10 Hz. The camera features an array of 3-D Hall magnetometers positioned according to a spherical t-design, allowing simultaneous magnetic field data acquisition from the surface of the sphere. The approach enables the efficient representation of all three components of the magnetic field inside the sphere using a sixth-degree polynomial, significantly reducing measurement time compared with sequential methods. This work details the design, calibration, and measurement methods of the field camera. To evaluate its performance, we compare it with a sequential single-sensor measurement by examining a magnetic gradient field. The obtained measurement uncertainties of approximately 1% demonstrate the feasibility of the approach and its potential applicability to a variety of future applications.

Conference Proceedings

[192155]
Title: 3-D Magnetic Field Camera With Subsecond Temporal Resolution.
Written by: F. Foerger, M. Boberg, N. Hackelberg, P. Heinisch, K. Ostaszewski, J. Faltinath, P. Suskin, F. Thieben, F. Mohn, P. Jürß, M. Möddel and T. Knopp
in: <em>IEEE Sensors Journal</em>. (2026).
Volume: <strong>26</strong>. Number: (1),
on pages:
Chapter:
Editor:
Publisher:
Series:
Address:
Edition:
ISBN:
how published:
Organization:
School:
Institution:
Type:
DOI: https://doi.org/10.1109/JSEN.2025.3629803
URL: https://ieeexplore.ieee.org/document/11244237
ARXIVID:
PMID:

[www]

Note: article

Abstract: Accurate and efficient volumetric magnetic field measurements are essential for a wide range of applications. Conventional methods are often limited in terms of measurement speed and applicability or suffer from scaling problems at larger volumes. This work presents a proof-of-concept field camera designed to measure magnetic fields within a spherical volume at a frame rate of 10 Hz. The camera features an array of 3-D Hall magnetometers positioned according to a spherical t-design, allowing simultaneous magnetic field data acquisition from the surface of the sphere. The approach enables the efficient representation of all three components of the magnetic field inside the sphere using a sixth-degree polynomial, significantly reducing measurement time compared with sequential methods. This work details the design, calibration, and measurement methods of the field camera. To evaluate its performance, we compare it with a sequential single-sensor measurement by examining a magnetic gradient field. The obtained measurement uncertainties of approximately 1% demonstrate the feasibility of the approach and its potential applicability to a variety of future applications.