title: Two-dimensional EPR imaging with the rapid scan and rotated magnetic field gradient.
abstract: A new method for fast 2D Electron Paramagnetic Resonance Imaging (EPRI) is presented. To reduce the time of projections acquisition we propose to combine rapid scan of Zeeman magnetic field using high frequency sinusoidal modulation with simultaneously applied magnetic field gradient, whose orientation is changed at low frequency. The correctness of the method is confirmed by studies carried out on a phantom consisting of two LiPc samples. The images from the acquired data are reconstructed using iterative algorithms. The proposed method allows to reduce the image acquisition time up to 10 ms for 2D EPRI, and to detect the sinogram with infinitesimal angular step between projections.
authors.affiliation: Laboratory of EPR Tomography, Poznan University of Technology, 60-965 Poznan, Poland. Electronic address: tomczech@interia.pl.
authors.forename: T
authors.initials: T
authors.lastname: Czechowski
authors.affiliation: Laboratory of EPR Tomography, Poznan University of Technology, 60-965 Poznan, Poland; Faculty of Electrical Engineering, West Pomeranian University of Technology, 70-310 Szczecin, Poland.
authors.forename: W
authors.initials: W
authors.lastname: Chlewicki
authors.affiliation: Laboratory of EPR Tomography, Poznan University of Technology, 60-965 Poznan, Poland; Department of Physics, Adam Mickiewicz University, 61-614 Poznan, Poland.
authors.forename: M
authors.initials: M
authors.lastname: Baranowski
authors.affiliation: Laboratory of EPR Tomography, Poznan University of Technology, 60-965 Poznan, Poland.
authors.forename: K
authors.initials: K
authors.lastname: Jurga
authors.affiliation: Laboratory of EPR Tomography, Poznan University of Technology, 60-965 Poznan, Poland.
authors.forename: P
authors.initials: P
authors.lastname: Szczepanik
authors.affiliation: Laboratory of EPR Tomography, Poznan University of Technology, 60-965 Poznan, Poland.
authors.forename: P
authors.initials: P
authors.lastname: Szulc
authors.affiliation: NanoBioMedical Centre, Adam Mickiewicz University, ul. Umultowska 14, PL 61614 Poznan, Poland.
authors.forename: K
authors.initials: K
authors.lastname: Tadyszak
authors.affiliation: Laboratory of EPR Tomography, Poznan University of Technology, 60-965 Poznan, Poland.
authors.forename: P
authors.initials: P
authors.lastname: Kedzia
authors.affiliation: Laboratory of EPR Tomography, Poznan University of Technology, 60-965 Poznan, Poland.
authors.forename: M
authors.initials: M
authors.lastname: Szostak
authors.affiliation: Laboratory of EPR Tomography, Poznan University of Technology, 60-965 Poznan, Poland.
authors.forename: P
authors.initials: P
authors.lastname: Malinowski
authors.affiliation: Laboratory of EPR Tomography, Poznan University of Technology, 60-965 Poznan, Poland.
authors.forename: S
authors.initials: S
authors.lastname: Wosinski
authors.affiliation: Laboratory of EPR Tomography, Poznan University of Technology, 60-965 Poznan, Poland; Department of Organometalic Chemistry, Adam Mickiewicz University, 60-780 Poznan, Poland.
authors.forename: W
authors.initials: W
authors.lastname: Prukala
authors.affiliation: Laboratory of EPR Tomography, Poznan University of Technology, 60-965 Poznan, Poland.
authors.forename: J
authors.initials: J
authors.lastname: Jurga
keywords: 2D imaging; EPR imaging; Rapid scan; Rotated gradient