CMI 360 EXAM 1 (1-4) 126 QUESTIONS WITH GUARANTEED PASSED ANSWERS!!

CMI 360 EXAM 1 (1-4)
126 QUESTIONS WITH
GUARANTEED PASSED
ANSWERS!!
CMI 360

Evatee 10/20/24 CMI 360

,CMI 360 EXAM 1 (1-4) 126 QUESTIONS WITH
GUARANTEED PASSED ANSWERS!!


radiation Answer - the emission of energy as waves and/or particles
can move through space, or a material medium


ionizing radiation Answer - radiation with enough kinetic energy to *liberate*
an electron from an atom or molecule


non-ionizing radiation Answer - insufficient energy to liberate electrons


example of gamma rays in diagnostic imaging? Answer - to image the
distribution of radiopharmaceuticals in nuclear imaging


example of x-rays in diagnostic imaging? Answer - radiography and CT imaging


example of visible light in diagnostic imaging? Answer - observation and
interpretation of images


example of radiofrequency in diagnostic imaging? Answer - ultrasound and
MRI


how are x-rays produced? Answer - from the interaction of a *high energy
electron* with a *metal target*


electrons knock out an electron from *inner shell* of a metal atom

, electrons from a *higher shell* fills the *vacancy* and emits an *x-ray photon*
(characteristic x-ray)


the *energy of the photon* is *equal to the difference in binding energy of the
two shells*


radiation Answer - energy that travels through space or matter


electromagnetic (EM) radiation Answer - has no mass, is unaffected by either
electrical or magnetic fields, and travels at a constant speed in a given medium


travels in straight lines


electromagnetic radiation propagates as a pair of? Answer - perpendicular
electric and magnetic fields


amplitude (a) Answer - wave intensity, maximal height


wavelength Answer - distance between any 2 identical points on adjacent
cycles


period Answer - time required to complete one cycle of a wave


frequency (v) Answer - # of periods/sec (1/ period)


phase Answer - temporal shift of one wave with respect to the other