2017 Imaging for Physicists Coursebook
Quantized nuclear spin • Nuclear spin is a form of angular momentum
• Nuclear spin, I , is quantized in units of ℏ
• Nuclear quantum number depends on nuclear configuration; I=1/2, 1… • Hydrogen has spin I=1/2, with spin projection numbers m I =+1/2 , -1/2; spin ‘up’ or ‘down’
• Magnetic moment is μ =γ I
Gyromagnetic ratio
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