Ahn Kang-Hyun, Subramanian V S, Halpern Howard J
Department of Radiation and Cellular Oncology, University of Chicago, Chicago, Illinois 60637, USA.
Med Phys. 2007 Dec;34(12):4854-9. doi: 10.1118/1.2804745.
The authors have obtained spectral-spatial EPR images of a phantom significantly larger than those previously obtained. Images of a homogeneous phantom 4.2 cm in diameter and 6.5 cm in length with B1 equivalent to that used for smaller samples give a similar linewidth resolution both with linewidth population distributions of width 0.1 microT. Spatial resolution appeared to have modest degradation. Images of the large homogeneous phantom provide maps of the magnetic field of a partially shimmed magnet.
