Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Henning F. Poulsen"'
Autor:
Can Yildirim, Henning F. Poulsen, Grethe Winther, Carsten Detlefs, Pin H. Huang, Leora E. Dresselhaus-Marais
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-11 (2023)
Abstract Thermomechanical processing such as annealing is one of the main methods to tailor the mechanical properties of materials, however, much is unknown about the reorganization of dislocation structures deep inside macroscopic crystals that give
Externí odkaz:
https://doaj.org/article/7474066e0fb3418cbaf86847faacab1b
Purpose: Spectral CT exploits advanced MultiX ME 100 photon counting detectors (PCD) to measure a material’s spectrally resolved linear attenuation coefficient (LAC) with the simultaneous spectral acquisition at multiple energy thresholds. We prese
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0146c7eebbcd104bb4350ec32958db63
https://doi.org/10.21203/rs.3.rs-2260614/v1
https://doi.org/10.21203/rs.3.rs-2260614/v1
Publikováno v:
Jumanazarov, D, Koo, J, Poulsen, H F, Olsen, U L & Iovea, M 2022, ' Significance of the spectral correction of photon counting detector response in material classification from spectral x-ray CT ', Journal of Medical Imaging, vol. 9, no. 3, 034504 . https://doi.org/10.1117/1.JMI.9.3.034504
J Med Imaging (Bellingham)
J Med Imaging (Bellingham)
Purpose: Photon counting imaging detectors (PCD) has paved the way for spectral x-ray computed tomography (spectral CT), which simultaneously measures a sample’s linear attenuation coefficient (LAC) at multiple energies. However, cadmium telluride
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::624ef2f41d0197f5ab4318e04ab086c5
https://doi.org/10.1117/1.jmi.9.3.034504
https://doi.org/10.1117/1.jmi.9.3.034504
Autor:
Ulrik L. Olsen, Mads G. Laursen, Piotr S. Mazurek, Jan Kehres, Lars P. Mikkelsen, Anne L. Skov, Henning F. Poulsen
Publikováno v:
Olsen, U L, Laursen, M G, Mazurek, P S, Kehres, J, Mikkelsen, L P, Skov, A L & Poulsen, H F 2022, ' Multiscale characterisation of strains in semicrystalline polymers ', Journal of Polymer Research, vol. 29, no. 5, 175 . https://doi.org/10.1007/s10965-022-03014-5
A nondestructive probe for mapping elastic strains within polymers would be an asset for materials engineering: for validation of mechanical models and for understanding damage nucleation. As a step towards this aim we demonstrate an X-ray wide angle
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::88ca9c1153f21cab87e53803b89bad84
https://doi.org/10.1007/s10965-022-03014-5
https://doi.org/10.1007/s10965-022-03014-5
Autor:
Chen Gao, Sean J. V. Marker, Carsten Gundlach, Henning F. Poulsen, Tomas Bohr, Alexander Schulz
SummaryArchitecture and conducting area of vascular elements along conifer needles are fundamentally different from broad leaves. We hypothesised that the needles’ unique transfusion tissue offers different mechanisms for water allocation and used
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::696a0713fd5fec4838a25a863e48cda2
https://doi.org/10.1101/2022.01.22.477321
https://doi.org/10.1101/2022.01.22.477321
Autor:
Doniyor Jumanazarov, Jakeoung Koo, Jan Kehres, Henning F. Poulsen, Ulrik L. Olsen, Mihai Iovea
Publikováno v:
Materials Characterization
Jumanazarov, D, Koo, J, Kehres, J, Poulsen, H F, Olsen, U L & Iovea, M 2022, ' Material classification from sparse spectral X-ray CT using vectorial total variation based on L infinity norm ', Materials Characterization, vol. 187, 111864 . https://doi.org/10.1016/j.matchar.2022.111864
Jumanazarov, D, Koo, J, Kehres, J, Poulsen, H F, Olsen, U L & Iovea, M 2022, ' Material classification from sparse spectral X-ray CT using vectorial total variation based on L infinity norm ', Materials Characterization, vol. 187, 111864 . https://doi.org/10.1016/j.matchar.2022.111864
The development of energy resolving photon counting detectors (PCD) has paved the way to spectral X-ray Computed Tomography (CT), with which one can simultaneously extract the energy dependence of a material's linear attenuation coefficient (LAC). Sp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4859132e520eb9d4b901fdf0a4568835
https://doi.org/10.1016/j.matchar.2022.111864
https://doi.org/10.1016/j.matchar.2022.111864
Autor:
Henning O. Sørensen, Søren Schmidt, Jonathan P. Wright, Gavin B. M. Vaughan, Simone Techert, Elspeth F. Garman, Jette Oddershede, Jav Davaasambuu, Karthik S. Paithankar, Carsten Gundlach, Henning F. Poulsen
Publikováno v:
Zeitschrift für Kristallographie
We summarize exploratory work on multigrain crystallography. The experimental arrangement comprises a monochromatic beam, a fully illuminated sample with up to several hundred grains in transmission geometry on a rotary table and a 2D detector. Novel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0960a34b7249d6c95e788d90306900e0
https://hdl.handle.net/11858/00-001M-0000-000F-4270-511858/00-001M-0000-0027-C6D3-D
https://hdl.handle.net/11858/00-001M-0000-000F-4270-511858/00-001M-0000-0027-C6D3-D
Autor:
David M. Paganin, Morten Sales, Peter M. Kadletz, Winfried Kockelmann, Mario A. Beltran, Henning F. Poulsen, Søren Schmidt
Publikováno v:
Paganin, D M, Sales, M, Kadletz, P M, Kockelmann, W, Beltran, M A, Poulsen, H F & Schmidt, S 2023, ' Revisiting Neutron Propagation-Based Phase-Contrast Imaging and Tomography : Use of Phase Retrieval to Amplify the Effective Degree of Brilliance ', Physical Review Applied, vol. 19, no. 3, 034005 . https://doi.org/10.1103/PhysRevApplied.19.034005
Propagation-based neutron phase-contrast tomography is demonstrated using the ISIS pulsed spallation source. The proof-of-concept tomogram with a Paganin-type phase-retrieval filter applied exhibits an effective net boost of 23±1 in the signal-to-no
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::892f8556a0a822cd2c766156fda5c3fe