Formule imagerie

• f =1/t
• c = lambda/T = lambda × f
• n = c(vide)/c(milieu)
• E = h×f = h×c/lambda
• E = 1240/lambda
• f'-f = ± 2 v/c×f×cos thêta
• L = 10 log (I/I(0))
• v(son) = [ racine carrée ] gamma ×RT/M
• Z= rho×c
• R= (Z(2)- Z(1))² /(Z(2)+ Z(1))²
• T = (4 × Z(1) × Z(2))/ (Z(1)+Z(2))²
• Ec (e-) = E(photon) - W(n)
• 1/E' - 1/E = (1-cos phi) / m×c²
• m×c² = 511 keV
• 1/E' - 1/E = (1-cos phi) / m×c²
• T= ln2/lambda
• N = N0×e^-lambda×t
• N = N0/2^t/T
• A= lamda×N
• A= A0×e^-1t
• A = A0/2^t/T
• Nx = N0×e^-mu×x
• Nx = N0/2^x/CDA
• CDA =ln2/mu