2024 Flashcards
schatzi ring is seen in which portion of the gastrointestinal tract
esophagus
the esophagus is ________ to the trachea
posterior
the filling of the inner - shell electron vacancy in the photoelectric effects is called the
cascade effect
a mekel diverticulum is seen in what part of the GI track
distal ileum
as what shell level does photoelectric absorption take place
inner shell K or L
for exposure timer accuracy testing, the acceptable percentage of accuracy must be plus or minus what percent
5
for the Gaynor - Hart method of hand x ray, state the range the CR is angled to the long axis of the hand
25 - 30 degrees
for the norgaard method or projection is also commonly called what position
ball catchers position
in a laser scanner, what device is responsible for amplifying light & sending it forward to the ADC
photodetector
in indirect digital conversion - what is the photoconductor constructed of ?
hydrogenated amorphous silicon
in what x radiation interaction does the Auger effect occur
photoelectric
refers to the ability of the digital system to display subtle changes in shades of gray
contrast resolution
refers to the range of exposure diagnostic image values the image detector is able to produce
latitude
state the formula for figuring penumbra
focal spot size x OID/SOD
term that describes the efficiency of a system in how it converts x ray input signal into a useful output image
quantum efficiency