Example FRCR Part 1 Physics questions
True or False: The Compton effect is independent of the atomic number $Z$ of the material.
True or False: Iterative reconstruction IR techniques are computationally simpler and faster to implement than Filtered Back Projection FBP .
True or False: Increasing the transducer frequency improves axial resolution but reduces the maximum depth of ultrasound penetration into the body.
True or False: The Nyquist criterion states that to avoid aliasing, the sampling frequency of a digital system must be at least equal to the highest frequency present in the signal.
True or False: In nuclear medicine, the radiation dose to the patient is determined by the duration of the image acquisition.
True or False: Increasing the echo train length $ETL$ in a turbo spin-echo sequence increases the total scan time.
True or False: According to ARSAC guidance, diagnostic reference levels DRLs for radionuclides can be adjusted upwards for obese patients at the site's discretion.
True or False: A transparency value $\alpha$ near $1$ in fused imaging indicates areas of limited radiopharmaceutical uptake.
True or False: The effective half-life $t {\text{eff}}$ of a radiopharmaceutical is always longer than its physical half-life $t {\text{phys}}$ .
True or False: A bow-tie filter is used in CT to increase the radiation dose at the periphery of the patient to match the intensity at the centre.