show that the effective electrical resistance of a solenoid is given by (13.79).

A solenoid coil with N turns per unit length, a length of L, and a radius of r0 is used to image an object of radius r0 with uniform resistivity of ρ. The coil is excited with a current I(t) = cos(2πν0t).

(a) What is the average power dissipated in the object? What is the voltage induced for a cylindrical shell of radius r?

(b) Given that the differential conductance of a cylindrical shell with length L, radius r, and resistivity ρ is dG = Ldr/(2πrρ), show that the effective electrical resistance of a solenoid is given by (13.79).

find the cost of your paper

Explain why attenuation is not a big problem in PET.

Consider a 2-D object consisting of two triangle compartments, as shown in Figure P9.4. Suppose a solution containing a 511 KeV gamma ray emitting radionuclide with concentration f = 0.5….

Give the mean and the variance of the reconstructed image, mean[ˆ f(x, y)] and var[ˆ f(x, y)].

Ignoring the inverse square law and attenuation, an approximate reconstruction for SPECT imaging is given by where c˜() =  {||W()} and W() is a rectangular windowing filter that cuts off at = 0…..

Find the numerical responses in each to an event in crystal C(4, 6).

Suppose a PET detector comprises four square PMTs (arranged as a 2 by 2 matrix) and a single BGO crystal with slits made in such a way that it is….