Science Quiz / Diagnostic Imaging Exam 1

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Can you name the Diagnostic Imaging Exam 1?

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

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