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Scaling of EPR spectral‐spatial images with size of sample: Images of a sample greater than 5 cm in linear dimension
Author(s) -
Ahn KangHyun,
Subramanian V. S.,
Halpern Howard J.
Publication year - 2007
Publication title -
medical physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.473
H-Index - 180
eISSN - 2473-4209
pISSN - 0094-2405
DOI - 10.1118/1.2804745
Subject(s) - imaging phantom , laser linewidth , image resolution , homogeneous , optics , scaling , sample (material) , resolution (logic) , population , dimension (graph theory) , materials science , nuclear magnetic resonance , physics , mathematics , geometry , artificial intelligence , laser , demography , sociology , computer science , pure mathematics , thermodynamics
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 withB 1equivalent to that used for smaller samples give a similar linewidth resolution both with linewidth population distributions of width 0.1 μ T . Spatial resolution appeared to have modest degradation. Images of the large homogeneous phantom provide maps of the magnetic field of a partially shimmed magnet.