Relaxation times in paramagnetically doped agarose gels as a function of temperature and ion concentration |
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Authors: | F A Howe |
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Institution: | Department of Medical Electronics and Physics, St. Bartholomew's Hospital Medical College, London, England. |
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Abstract: | Tissue equivalent gels of NMR phantoms have been investigated at 3.4 MHz. The proton T1 and T2 relaxation times have been measured in Ni++ and Cu++ doped agarose gels as a function of temperature and ion concentration. Ni-agarose gels have the lower T1 temperature dependence, but gels containing both Cu++ and Ni++ can be produced for which T1 has virtually no temperature dependence. |
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