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Consider 3 typical MRI systems of 0.5T, 1.5T and 3.0T for proton imaging (given the proton’s...

Consider 3 typical MRI systems of 0.5T, 1.5T and 3.0T for proton imaging (given the proton’s gyromagnetic ratio γ/2π = 42.48 MHz/Tesla) (a) What are the RF frequencies at which these systems operate? (b) Briefly discuss the main physics factors affecting the MR signal strength and rank the MR signal strengths among these three MRI systems

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