Ulrik Lund Olsen

Ulrik Lund Olsen

Senior Research Engineer

DTU PHYSICS
Department of Physics

Technical University of Denmark

Fysikvej

Building 307, room 210

2800 Kgs. Lyngby

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2019
 

Intrinsic XRF corrections in Timepix3 CdTe spectral detectors

Khalil, M. ; Turecek, D. ; Jakubek, J. ; Kehres, J. ; Dreier, E. S. ; Olsen, U. L.
in: Journal of Instrumentation, vol: 14, issue: 1

Type: Conference article (Peer reviewed)

Status: Published     |    Year: 2019     |    DOI: https://doi.org/10.1088/1748-0221/14/01/C01018

 

Method for system-independent material characterization from spectral X-ray CT

Busi, Matteo ; Mohan, K. Aditya ; Dooraghi, Alex A. ; Champley, Kyle M. ; Martz, Harry E. ; Olsen, Ulrik L.
in: NDT&E international, vol: 107

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2019     |    DOI: https://doi.org/10.1016/j.ndteint.2019.102136

 

Virtual subpixel approach for single-mask phase-contrast imaging using Timepix3

Dreier, E.S. ; Silvestre, C. ; Kehres, J. ; Turecek, D. ; Khalil, M. ; Hemmingsen, J.H. ; Hansen, O. ; Jakubek, J. ; Feidenhans'l, R. ; Olsen, U.L.
in: Journal of Instrumentation, vol: 14, issue: 01
Presented at:
20th International Workshop on Radiation Imaging Detectors

Type: Conference article (Peer reviewed)

Status: Published     |    Year: 2019     |    DOI: https://doi.org/10.1088/1748-0221/14/01/C01011

2018
 

A spectral geometric model for Compton single scatter in PET based on the single scatter simulation approximation

Kazantsev, I.G. ; Olsen, Ulrik Lund ; Poulsen, Henning Friis ; Hansen, Per Christian
in: Inverse Problems, vol: 34, issue: 2

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2018     |    DOI: https://doi.org/10.1088/1361-6420/aaa05d

  PDF

Simulation tools for scattering corrections in spectrally resolved X-ray Computed Tomography using McXtrace

Busi, Matteo ; Olsen, Ulrik L. ; Knudsen, Erik B. ; Frisvad, Jeppe R. ; Kehres, Jan ; Dreier, Erik S.
in: Optical Engineering, vol: 57, issue: 3

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2018     |    DOI: https://doi.org/10.1117/1.OE.57.3.037105

  PDF

Spectral correction algorithm for multispectral CdTe x-ray detectors

Dreier, Erik Schou ; Kehres, Jan ; Khalil, Mohamad ; Busi, Matteo ; Gu, Yun ; Feidenhans'l, Robert Krarup ; Olsen, Ulrik Lund
in: Optical Engineering, vol: 57, issue: 5

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2018     |    DOI: https://doi.org/10.1117/1.OE.57.5.054117

 

Subpixel resolution in CdTe Timepix3 pixel detectors

Khalil, Mohamad ; Dreier, Erik Schou ; Kehres, Jan ; Jakubek, Jan ; Olsen, Ulrik Lund
in: Journal of Synchrotron Radiation, vol: 25, issue: 6, pages: 1650-1657

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2018     |    DOI: https://doi.org/10.1107/S1600577518013838

2017
  PDF

A METHOD OF SECURITY SCANNING OF CARRY-ON ITEMS, AND A CARRY-ON ITEMS SECURITY SCANNING SYSTEM

Poulsen, Henning Friis ; Olsen, Ulrik Lund ; Kehres, Jan
Patent no.: WO2017005757, Date: 2017-01-12

Type: Patent

Status: Published     |    Year: 2017

  PDF

A Monte Carlo simulation of scattering reduction in spectral x-ray computed tomography

Busi, Matteo ; Olsen, Ulrik Lund ; Bergbäck Knudsen, Erik ; Frisvad, Jeppe Revall ; Kehres, Jan ; Christensen, Erik D. ; Khalil, Mohamad ; Haldrup, Kristoffer
part of: Advances in Computational Methods for X-Ray Optics IV, 2017, SPIE - International Society for Optical Engineering
Presented at:
SPIE Optics + Photonics 2017

Type: Article in proceedings (Peer reviewed)

Status: Published     |    Year: 2017     |    DOI: https://doi.org/10.1117/12.2273763

  PDF

Detector response artefacts in spectral reconstruction

Olsen, Ulrik Lund ; Christensen, Erik D. ; Khalil, Mohamad ; Gu, Yun ; Kehres, Jan
part of: Proc. SPIE 10391, Developments in X-Ray Tomography XI, 2017, SPIE - International Society for Optical Engineering
Presented at:
SPIE Optics + Photonics 2017

Type: Article in proceedings (Peer reviewed)

Status: Published     |    Year: 2017     |    DOI: https://doi.org/10.1117/12.2272564

  PDF

Multispectral x-ray CT: multivariate statistical analysis for efficient reconstruction

Kheirabadi, Mina ; Mustafa, Wail ; Lyksborg, Mark ; Olsen, Ulrik Lund ; Dahl, Anders Bjorholm
part of: Proceedings Volume 10391, Developments in X-Ray Tomography XI, 2017, SPIE - International Society for Optical Engineering
Presented at:
SPIE Optics + Photonics 2017

Type: Article in proceedings (Peer reviewed)

Status: Published     |    Year: 2017     |    DOI: https://doi.org/10.1117/12.2273338

  PDF

Spectral correction algorithm for multispectral CdTe x-ray detectors

Christensen, Erik D. ; Kehres, Jan ; Gu, Yun ; Feidenhans’l, Robert ; Olsen, Ulrik Lund
part of: Proc. SPIE 10403, Infrared Remote Sensing and Instrumentation XXV, 2017, SPIE - International Society for Optical Engineering
Presented at:
SPIE Optics + Photonics 2017

Type: Article in proceedings (Peer reviewed)

Status: Published     |    Year: 2017     |    DOI: https://doi.org/10.1117/12.2272935

  PDF

Threat detection of liquid explosives and precursors from their x-ray scattering pattern using energy dispersive detector technology

Kehres, Jan ; Olsen, Ulrik Lund ; Lyksborg, Mark
part of: Proc. SPIE 10403, Infrared Remote Sensing and Instrumentation XXV, 2017, SPIE - International Society for Optical Engineering
Presented at:
SPIE Optics + Photonics 2017

Type: Article in proceedings (Peer reviewed)

Status: Published     |    Year: 2017     |    DOI: https://doi.org/10.1117/12.2274519

2016
  PDF

A Spectral Geometrical Model for Compton Scatter Tomography Based on the SSS Approximation

Kazantsev, Ivan G. ; Olsen, Ulrik Lund ; Poulsen, Henning Friis ; Hansen, Per Christian
part of: Proceedings of the The 4th International Conference on Image Formation in X-Ray Computed Tomography, pages: 577-580, 2017
Presented at:
4th International Conference on Image Formation in X-Ray Computed Tomography

Type: Article in proceedings (Peer reviewed)

Status: Published     |    Year: 2016

2014
 

3D -Ray Diffraction Microscopy

Poulsen, Henning Friis ; Schmidt, Søren ; Juul Jensen, Dorte ; Sørensen, Henning Osholm ; Lauridsen, Erik Mejdal ; Olsen, Ulrik Lund ; Ludwig, Wolfgang ; King, Andrew ; Wright, Jonathan Paul ; Vaughan, Gavin B. M.
part of: Strain and Dislocation Gradients from Diffraction, pages: 205-253, 2015, World Scientific

Type: Book chapter (Peer reviewed)

Status: Published     |    Year: 2014     |    DOI: https://doi.org/10.1142/9781908979636_0006

 

Modeling of in-vehicle magnetic refrigeration

Olsen, Ulrik Lund ; Bahl, Christian R.H. ; Engelbrecht, Kurt ; Nielsen, Kaspar Kirstein ; Tasaki, Y. ; Takahashi, H.
in: International Journal of Refrigeration, vol: 37, issue: 1, pages: 194-200

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2014     |    DOI: https://doi.org/10.1016/j.ijrefrig.2013.09.013

 

The influence of non-magnetocaloric properties on the performance in parallel-plate AMRs

Nielsen, Kaspar Kirstein ; Bahl, Christian R.H. ; Smith, Anders ; Engelbrecht, Kurt ; Olsen, Ulrik Lund ; Pryds, Nini
in: International Journal of Refrigeration, vol: 37, pages: 127–134

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2014     |    DOI: https://doi.org/10.1016/j.ijrefrig.2013.09.022

2013
 

Performance analysis of a rotary active magnetic refrigerator

Lozano, Jaime ; Engelbrecht, Kurt ; Bahl, Christian R.H. ; Nielsen, Kaspar Kirstein ; Eriksen, Dan ; Olsen, Ulrik Lund ; Barbosa Jr., J.R. ; Smith, Anders ; Prata, A.T. ; Pryds, Nini
in: Applied Energy, vol: 111, pages: 669-680

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2013     |    DOI: https://doi.org/10.1016/j.apenergy.2013.05.039

2012
  PDF

Modeling of In-vehicle Magnetic refrigeration

Olsen, Ulrik Lund ; Bahl, Christian ; Engelbrecht, Kurt ; Nielsen, Kaspar Kirstein ; Tasaki, Y. ; Takahashi, H. ; Yasuda, Y.
part of: Proceedings of the fifth IIF-IIR International Conference on Magnetic Refrigeration at Room Temperature, 2012
Presented at:
5th IIF-IIR International Conference on Magnetic Refrigeration at Room Temperature

Type: Article in proceedings (Peer reviewed)

Status: Published     |    Year: 2012

 

Non-destructive identification of micrometer-scale minerals and their position within a bulk sample

Sørensen, Henning O. ; Hakim, Sepide S. ; Pedersen, Stefan ; Christiansen, Christian Bo ; Balogh, Zoltan Imre ; Hem, Caroline Piper ; Pasarin, Ivan S. ; Schmidt, Søren ; Olsen, Ulrik L. ; Oddershede, Jette ; Frandsen, Cathrine ; Feidenhans’L, Robert ; Stipp, Susan Louise Svane
in: Canadian Mineralogist, vol: 50, issue: 2, pages: 501-509

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2012     |    DOI: https://doi.org/10.3749/canmin.50.2.501

  PDF

The influence of demagnetizing effects on the performance of active magnetic regenerators

Nielsen, Kaspar Kirstein ; Smith, Anders ; Bahl, Christian ; Olsen, Ulrik Lund
in: Journal of Applied Physics, vol: 112, pages: 094905

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2012     |    DOI: https://doi.org/10.1063/1.4764039

  PDF

The influence of non-magnetocaloric properties on the AMR performance

Nielsen, Kaspar Kirstein ; Bahl, Christian ; Smith, Anders ; Engelbrecht, Kurt ; Olsen, Ulrik Lund ; Pryds, Nini
part of: Proceedings of the fifth IIF-IIR International Conference on Magnetic Refrigeration at Room Temperature, 2012
Presented at:
5th IIF-IIR International Conference on Magnetic Refrigeration at Room Temperature

Type: Article in proceedings (Peer reviewed)

Status: Published     |    Year: 2012

2010
  PDF

4D characterization of metals by 3DXRD

Poulsen, Henning Friis ; Ludwig, W. (Invited author) ; Lauridsen, Erik Mejdal ; Schmidt, Søren ; Pantleon, Wolfgang ; Olsen, Ulrik Lund ; Oddershede, Jette ; Reischig, P. (Invited author) ; Lyckegaard, Allan ; Wright, J. (Invited author) ; Vaughan, G. (Invited author)
in: Proceedings of the Risø International Symposium on Materials Science, vol: 31, pages: 101-119
Presented at:
31st Risø International Symposium on Materials Science : Challenges in materials science and possibilities in 3D and 4D characterization techniques

Type: Conference article (Peer reviewed)     |     Invited contribution

Status: Published     |    Year: 2010

 

The extension of ID11 for nanoscale and hierarchical characterization

Vaughan, G.B.M. ; Wright, J.P. ; Bytchkov, A. ; Curfs, C. ; Gundlach, C. ; Orlova, M. ; Erra, L. ; Gleyzolle, H. ; Buslaps, T. ; Götz, A. ; Suchet, G. ; Petitdemange, S. ; Rossat, M. ; Margulies, L. ; Ludwig, W. ; Snigirev, A. ; Snigireva, I. ; Schmidt, Søren ; Sørensen, Henning Osholm ; Lauridsen, Erik Mejdal ; Olsen, Ulrik Lund ; Oddershede, Jette ; Poulsen, Henning Friis
in: Proceedings of the Risø International Symposium on Materials Science, vol: 31, pages: 457-476
Presented at:
31st Risø International Symposium on Materials Science : Challenges in materials science and possibilities in 3D and 4D characterization techniques

Type: Conference article (Peer reviewed)

Status: Published     |    Year: 2010

2009
  PDF

New generation of efficient high resolution detector for 30-100 keV photons

Olsen, Ulrik Lund

Type: Ph.D. thesis

Status: Published     |    Year: 2009

  PDF

Strip detector for nanoscale resolution

Olsen, Ulrik Lund ; Schmidt, Søren ; Poulsen, Henning Friis ; Yvind, Kresten ; Ottaviano, Luisa
Presented at:
Detektor Workshop

Type: Sound/Visual production (digital)

Status: Published     |    Year: 2009

 

Structured scintillators for X-ray imaging with micrometre resolution

Olsen, Ulrik Lund ; Schmidt, Søren ; Poulsen, Henning Friis ; Linnros, J. ; Yun, S.H. ; Di Michiel, M. ; Martin, T.
in: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol: 607, issue: 1, pages: 141-144

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2009     |    DOI: https://doi.org/10.1016/j.nima.2009.03.139

2008
 

A high-spatial-resolution three-dimensional detector array for 30-200 keV X-rays based on structured scintillators

Olsen, Ulrik Lund ; Schmidt, Søren ; Poulsen, Henning Friis
in: Journal of Synchrotron Radiation, vol: 15, pages: 363-370

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2008     |    DOI: https://doi.org/10.1107/S0909049508011370

 

Direct observation of 3-D grain growth in Al–0.1% Mn

Schmidt, Søren ; Olsen, Ulrik Lund ; Poulsen, Henning Friis ; Sørensen, Henning Osholm ; Lauridsen Mejdal, Erik ; Margulies, Lawrence ; Maurice, C. ; Juul Jensen, Dorte
in: Scripta Materialia, vol: 59, issue: 5, pages: 491-494

Type: Journal article (Peer reviewed)

Status: Published     |    Year: 2008     |    DOI: https://doi.org/10.1016/j.scriptamat.2008.04.049

 

Novel synchrotron based techniques for characterization of energy materials

Poulsen, Henning Friis ; Nielsen, Søren Fæster ; Olsen, Ulrik Lund ; Schmidt, Søren ; Wright, J. (Invited author)
part of: Energy Materials. Advances in Characterization, Modelling and Application, pages: 101-122, 2008, Danmarks Tekniske Universitet, Risø Nationallaboratoriet for Bæredygtig Energi, Roskilde
Presented at:
29th Risø International Symposium on Materials Science

Type: Article in proceedings (Peer reviewed)     |     Invited contribution

Status: Published     |    Year: 2008

2007
 

Development of a high-efficiency high-resolution imaging detector for 30–80 keV X-rays

Olsen, Ulrik Lund ; Badel, X. ; Linnros, J. ; Michiel, M. Di ; Martin, T. ; Schmidt, Søren ; Poulsen, Henning Friis
in: Nuclear Instruments and Methods in Physics Research Section A, vol: 576, pages: 52-55
Presented at:
International workshop on radiation imaging detectors

Type: Conference article (Peer reviewed)

Status: Published     |    Year: 2007     |    DOI: https://doi.org/10.1016/j.nima.2007.01.119