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Science Quiz / Diagnostic Imaging Exam 1

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Can you name the Diagnostic Imaging Exam 1?

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