Science Quiz / Diagnostic Imaging Exam 1

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Can you name the Diagnostic Imaging Exam 1?

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Questionanswer
xrays make radiographic film _____ (color)
what metal is the focusing cup made of
number of wave cycles that pass a stationary point in a second
optimal developer temp is __ degrees F
a ______ transformer reduces incoming line current from amperes down to mA, called the 'low voltage' circuit
(small/large) focal spots are desired because they result in very clear images
what metal is the filament made of?
T or F: there is no limit to how small a focal spot can be
type of anode with limited ability to withstand heat generated by electrons hitting the target
difference in density and mass between two adjacent anatomic structures
number of protons is (greater, equal, less) number of electrons
this surrounds anode/cathode, creates a vacuum so no air molecules are present
density difference between two adjacent areas on a radiograph
T or F: silver should be disposed of by washing down the drain
what is the viewing contrast desirable for soft tissues (high, low)
The _____ effect is where the intensity of the beam varies and is stronger on the cathode side due to the angle of the target
_______ allow flow of electrons in one direction only
fixer pH is
the kVp selector is also called ___________
the primary machine setting controlling depth of penetration
thicker parts absorb (more/less) xrays and make film (darker/lighter)
As the focal spot becomes larger, the image becomes fuzzy and less clear; this is called the _______ effect
radiographer can switch filaments by turning the ___ selector
distance between two consecutive corresponding points on a wave
type of anode developed to help dissipate the heat generated at the target; can use higher mA's with these
xrays are a form of __________; which are bundles of energy that travel in waves
Questionanswer
T or F: xrays produce a visible image on the film before processing
xrays are (high/low) frequency waves
smaller filaments have (smaller/larger) focusing cups
the _____ is always positive, the ______ is always negative
min dark room size is __ by __ feet
T or F xrays excite and ionize atoms
dental units use what type of anode?
hihg frequency type _______ are used in clinics to allow thousands of electrical waves to flow towards the xray tube instead of standard 60 cycle US alternating current
Xrays are bundles of energy called ______ or ______
developer pH should be
degree of blackness
site of xray generation
_____ wavelengths have higher frequencies
electrons that collide with ______ produce xrays
what percent of the energy produced when electrons hit the target is converted into xrays?
xrays travel in ______ lines
electrons are concentrated in a small area of the target called the ____
Stationary base is made of what metal?
______ wavelengths have more energy
visible difference between two adjacent radiographic densities
the _____ transformer increases the incoming voltage from volts to kilovolts, called 'high voltage' circuit
position the (thick/thin) area under the cathode side
encases entire xray tube to prevent stray radiation escaping and protects glass envelope from damage
what metal is the window made of that allows xrays to leave the tube and expose the film
number of xrays leaving the tube is determined by what setting?
part of xray machine that directs electrons towards the light

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