Determine the maximum scatter angle such that the photons will be within a 10% pulse height window.

You will be imaging a radioactive source using an Anger camera.

(a) Sketch and label the pulse height spectrum. Make the photopeak at 180 AU (for 140 keV photons).

(b) Determine the maximum scatter angle such that the photons will be within a 10% pulse height window.

For parts (c) and (d), assume the PMT arrangement and corresponding pulse heights shown in Figure P8.4.

(c) Compute the Z-pulse.

(d) Computer the position (X,Y) of the event.

(e) What are the causes of event localization error?

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….