Current Publications

Journal Publications
since 2024

Recent Journal Publications

[191953]
Title: Unique compact representation of magnetic fields using truncated solid harmonic expansions.
Written by: M. Boberg, T. Knopp, and M. Möddel
in: <em>European Journal of Applied Mathematics</em>. Jan (2025).
Volume: Number:
on pages: 1-28
Chapter:
Editor:
Publisher:
Series:
Address:
Edition:
ISBN:
how published:
Organization:
School:
Institution:
Type:
DOI: 10.1017/S0956792524000883
URL: https://www.cambridge.org/core/journals/european-journal-of-applied-mathematics/article/unique-compact-representation-of-magnetic-fields-using-truncated-solid-harmonic-expansions/4654E5547EE13A3894CD42342782231C#article
ARXIVID:
PMID:

[www] [BibTex]

Note: article, magneticfield, openaccess

Abstract: Precise knowledge of magnetic fields is crucial in many medical imaging applications such as magnetic resonance imaging (MRI) or magnetic particle imaging (MPI), as they form the foundation of these imaging systems. Mathematical methods are essential for efficiently analysing the magnetic fields in the entire field-of-view. In this work, we propose a compact and unique representation of the magnetic fields using real solid spherical harmonic expansions, which can be obtained by spherical t-designs. To ensure a unique representation, the expansion point is shifted at the level of the expansion coefficients. As an application scenario, these methods are used to acquire and analyse the magnetic fields of an MPI system. Here, the field-free-point of the spatial encoding field serves as the unique expansion point.

Conference Abstracts and Proceedings
since 2024

Recent Conference Abstracts and Proceedings

[191953]
Title: Unique compact representation of magnetic fields using truncated solid harmonic expansions.
Written by: M. Boberg, T. Knopp, and M. Möddel
in: <em>European Journal of Applied Mathematics</em>. Jan (2025).
Volume: Number:
on pages: 1-28
Chapter:
Editor:
Publisher:
Series:
Address:
Edition:
ISBN:
how published:
Organization:
School:
Institution:
Type:
DOI: 10.1017/S0956792524000883
URL: https://www.cambridge.org/core/journals/european-journal-of-applied-mathematics/article/unique-compact-representation-of-magnetic-fields-using-truncated-solid-harmonic-expansions/4654E5547EE13A3894CD42342782231C#article
ARXIVID:
PMID:

[www]

Note: article, magneticfield, openaccess

Abstract: Precise knowledge of magnetic fields is crucial in many medical imaging applications such as magnetic resonance imaging (MRI) or magnetic particle imaging (MPI), as they form the foundation of these imaging systems. Mathematical methods are essential for efficiently analysing the magnetic fields in the entire field-of-view. In this work, we propose a compact and unique representation of the magnetic fields using real solid spherical harmonic expansions, which can be obtained by spherical t-designs. To ensure a unique representation, the expansion point is shifted at the level of the expansion coefficients. As an application scenario, these methods are used to acquire and analyse the magnetic fields of an MPI system. Here, the field-free-point of the spatial encoding field serves as the unique expansion point.

Publications

Journal Publications
since 2014

Journal Publications

[191953]
Title: Unique compact representation of magnetic fields using truncated solid harmonic expansions.
Written by: M. Boberg, T. Knopp, and M. Möddel
in: <em>European Journal of Applied Mathematics</em>. Jan (2025).
Volume: Number:
on pages: 1-28
Chapter:
Editor:
Publisher:
Series:
Address:
Edition:
ISBN:
how published:
Organization:
School:
Institution:
Type:
DOI: 10.1017/S0956792524000883
URL: https://www.cambridge.org/core/journals/european-journal-of-applied-mathematics/article/unique-compact-representation-of-magnetic-fields-using-truncated-solid-harmonic-expansions/4654E5547EE13A3894CD42342782231C#article
ARXIVID:
PMID:

[www] [BibTex]

Note: article, magneticfield, openaccess

Abstract: Precise knowledge of magnetic fields is crucial in many medical imaging applications such as magnetic resonance imaging (MRI) or magnetic particle imaging (MPI), as they form the foundation of these imaging systems. Mathematical methods are essential for efficiently analysing the magnetic fields in the entire field-of-view. In this work, we propose a compact and unique representation of the magnetic fields using real solid spherical harmonic expansions, which can be obtained by spherical t-designs. To ensure a unique representation, the expansion point is shifted at the level of the expansion coefficients. As an application scenario, these methods are used to acquire and analyse the magnetic fields of an MPI system. Here, the field-free-point of the spatial encoding field serves as the unique expansion point.

Conference Abstracts and Proceedings
since 2014

Conference Abstracts and Proceedings

[191953]
Title: Unique compact representation of magnetic fields using truncated solid harmonic expansions.
Written by: M. Boberg, T. Knopp, and M. Möddel
in: <em>European Journal of Applied Mathematics</em>. Jan (2025).
Volume: Number:
on pages: 1-28
Chapter:
Editor:
Publisher:
Series:
Address:
Edition:
ISBN:
how published:
Organization:
School:
Institution:
Type:
DOI: 10.1017/S0956792524000883
URL: https://www.cambridge.org/core/journals/european-journal-of-applied-mathematics/article/unique-compact-representation-of-magnetic-fields-using-truncated-solid-harmonic-expansions/4654E5547EE13A3894CD42342782231C#article
ARXIVID:
PMID:

[www]

Note: article, magneticfield, openaccess

Abstract: Precise knowledge of magnetic fields is crucial in many medical imaging applications such as magnetic resonance imaging (MRI) or magnetic particle imaging (MPI), as they form the foundation of these imaging systems. Mathematical methods are essential for efficiently analysing the magnetic fields in the entire field-of-view. In this work, we propose a compact and unique representation of the magnetic fields using real solid spherical harmonic expansions, which can be obtained by spherical t-designs. To ensure a unique representation, the expansion point is shifted at the level of the expansion coefficients. As an application scenario, these methods are used to acquire and analyse the magnetic fields of an MPI system. Here, the field-free-point of the spatial encoding field serves as the unique expansion point.

Publications Pre-dating the Institute

Publications
2007-2013

Old Publications

[191953]
Title: Unique compact representation of magnetic fields using truncated solid harmonic expansions.
Written by: M. Boberg, T. Knopp, and M. Möddel
in: <em>European Journal of Applied Mathematics</em>. Jan (2025).
Volume: Number:
on pages: 1-28
Chapter:
Editor:
Publisher:
Series:
Address:
Edition:
ISBN:
how published:
Organization:
School:
Institution:
Type:
DOI: 10.1017/S0956792524000883
URL: https://www.cambridge.org/core/journals/european-journal-of-applied-mathematics/article/unique-compact-representation-of-magnetic-fields-using-truncated-solid-harmonic-expansions/4654E5547EE13A3894CD42342782231C#article
ARXIVID:
PMID:

[www]

Note: article, magneticfield, openaccess

Abstract: Precise knowledge of magnetic fields is crucial in many medical imaging applications such as magnetic resonance imaging (MRI) or magnetic particle imaging (MPI), as they form the foundation of these imaging systems. Mathematical methods are essential for efficiently analysing the magnetic fields in the entire field-of-view. In this work, we propose a compact and unique representation of the magnetic fields using real solid spherical harmonic expansions, which can be obtained by spherical t-designs. To ensure a unique representation, the expansion point is shifted at the level of the expansion coefficients. As an application scenario, these methods are used to acquire and analyse the magnetic fields of an MPI system. Here, the field-free-point of the spatial encoding field serves as the unique expansion point.

Open Access Publications

Journal Publications
since 2014

Open Access Publications

[191953]
Title: Unique compact representation of magnetic fields using truncated solid harmonic expansions.
Written by: M. Boberg, T. Knopp, and M. Möddel
in: <em>European Journal of Applied Mathematics</em>. Jan (2025).
Volume: Number:
on pages: 1-28
Chapter:
Editor:
Publisher:
Series:
Address:
Edition:
ISBN:
how published:
Organization:
School:
Institution:
Type:
DOI: 10.1017/S0956792524000883
URL: https://www.cambridge.org/core/journals/european-journal-of-applied-mathematics/article/unique-compact-representation-of-magnetic-fields-using-truncated-solid-harmonic-expansions/4654E5547EE13A3894CD42342782231C#article
ARXIVID:
PMID:

[www] [BibTex]

Note: article, magneticfield, openaccess

Abstract: Precise knowledge of magnetic fields is crucial in many medical imaging applications such as magnetic resonance imaging (MRI) or magnetic particle imaging (MPI), as they form the foundation of these imaging systems. Mathematical methods are essential for efficiently analysing the magnetic fields in the entire field-of-view. In this work, we propose a compact and unique representation of the magnetic fields using real solid spherical harmonic expansions, which can be obtained by spherical t-designs. To ensure a unique representation, the expansion point is shifted at the level of the expansion coefficients. As an application scenario, these methods are used to acquire and analyse the magnetic fields of an MPI system. Here, the field-free-point of the spatial encoding field serves as the unique expansion point.