Ionization Chambers Connected to Electrometers Are Used by Medical Physicists

Ionization chambers connected to electrometers are used by medical physicists to perform standard measurements required by state,federal,and health care accreditation organizations for radiographic and fluoroscopic devices.Some of these measurements include:
1) x-ray output in mR/mAs.
2) reproducibility and linearity of output.
3) timer accuracy.
4) half-value layer,or beam quality.
5) entrance exposure rates for fluoroscopic units.

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