Imaging for Physicists

• 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