CT Registry Review Program Post-Test Questions with correct answers

Bremsstrahlung radiation does NOT include which type of electron activity? 1. Collision between an incoming electron and the nucleus of the target atom 2. Collision between an incoming electron and an electron in an inner shell of the target atom 3. Slowing down of an incoming electron due to the effect of passing close to the positive charge of the nucleus of the target atom CORRECT ANSWER 2 only. Collision between an incoming electron and an electron in an inner shell of the target atom describes characteristic radiation. Collimation is accomplished by: CORRECT ANSWER Physically blocking x-rays Which of the following statements is FALSE regarding occurrences after an x-ray photon penetrates the detector aperture? 1. The photon can pass through the detector unmeasured 2. The photon is converted completely into an electron 3. The measured signal is enhanced by an amplifier CORRECT ANSWER 2 only Which of the following utilizes convolution? 1. 3D SSD 2. Fourier Transform 3. Filtered back projection CORRECT