L6 MRI and PET Scanning

Essential Pre-Uni Physics L6.1
A. 1,2,4
B. two coincident gammas

Essential Pre-Uni Physics L6.2
A. Coincident back to back gammas detected a few nanoseconds apart

Essential Pre-Uni Physics L6.3
A. a larger concentration of radioisotope
B. Diagnosis, staging, and monitoring treatment of some types of cancer

Essential Pre-Uni Physics L6.4
A. O(18,8) + p -> F (18,9) + n

Essential Pre-Uni Physics L6.5
A. sodium iodide crystal
B. photomultiplier

Essential Pre-Uni Physics L6.6
A. 2 T
B. 90 MHz

Essential Pre-Uni Physics L6.7
A. it aligns either parallel or antiparallel to the magnet's field

Essential Pre-Uni Physics L6.8
A. Larmor frequency

Essential Pre-Uni Physics L6.9
A. from measurement of the frequency - the inhomogeneous magnetic field ensures that each location has a different field strength & orientation, resulting in a different frequency of emission
B. from the relaxation time

Essential Pre-Uni Physics L6.10
A. 1,3,5,6
B. 2,4