In Order for a CT X-Ray Photon to Be Measured

Multiple Choice

In order for a CT x-ray photon to be measured, it must
1) enter the detector
2) be absorbed by the detector material
3) transmit through the detector to be back-projected
4) have sufficient energy to undergo a Compton interaction
5) be converted to light and then electrical energy as a signal

A) 1, 3, 4, and 5
B) 1, 2, and 5
C) 1, 2, and 4
D) 1, 4, and 5