Type
Crossword
Description

The ___ phosphor absorbs the remnant x-ray photon and energy and emits light Input
The smaller the ____ focal spot, the sharper the image will be. Effective
Imaging that uses a continuous beam of x-rays to create images of moving internal structures that can be viewed on a display monitor Fluoroscopy
X-ray photon production happens at the Anode
The negative end of the tube. Cathode
Brightness gain AKA ___ factor Conversion
"___ lined metal structure is what the tube housing is made of." Lead
Used as the disk base and core. Molybdenum
Component of the image intensifier that converts light intensities to electrons Photocathode
"The main purpose of the enclosure is to maintain a ___ within the tube." Vacuum
X-rays are produced ___ Isotropically
A filament may break due to Vaporization
The focusing cup has a ___ charge Negative

Radiology Crossword

Type
Crossword
Description

Contains x-ray tube tubehead
image is projected onto this imagereceptor
where electrons are converted into photons anode
holds film in the mouth receptorholder
concept that everyone should be exposed to minimal radiation ALARA
particles with a negative charge electron
particles with a positive charge proton
protects chest and lap leadapron
goes aroud neck, protects thyroid glad thyroidcollar
consists of exposure button, on/off, controls controlpanel
suspends x-ray tubehead extensionarm
consists of tungsten filament and focusing cup cathode
controls number of electrons produced in x-ray tube milliamperage
how the light and dark areas differ contrast
the darkness or blackness of an image density
controls the energy and wavelength kilovoltage

X-RAY TUBES Crossword

Type
Crossword
Description

The principle that spreads heat over a greater area of the anode and allows the effective focal spot to be smaller than the actual focal spot LINEFOCUS
How ninety-nine percent of an electrons kinetic energy is converted HEAT
Keeps the electron cloud together before they leave the cathode FOCUSINGCUP
Occurs when no more electrons can be boiled off the filament; limits x-ray tubes to a maximum of 1000 mA SPACECHARGEEFFECT
Area where electrons strike the anode FOCALSPOT
Environment inside the x-ray tube once all air has been removed VACUUM
Graph that allows radiographers to determine the maximum technical factor combination that is safe for the x-ray tube RADIOGRAPHICRATINGCHART
A coil of wire; source of electrons FILAMENT
The product of kVp, mA, and time HEATUNITS
Type of radiation emitted outside the tube housing; must be less than 1 mGy/hr at 1 m from the tube LEAKAGERADIATION
Causes uneven distribution of x-ray intensity between the cathode and anode HEELEFFECT
The positive electrode of an x-ray tube ANODE
The process of boiling off electrons at the filament THERMIONICEMISSION
The negative electrode of an x-ray tube CATHODE
The anode is constructed of this material due to its high melting point TUNGSTEN

Chapter 8 Image Production Crossword

Type
Crossword
Description

x-ray photons removed from the x-ray beam as a result of the uptake of their energy by body tissues absorption
reduction in the energy or number of photons in the primary x-ray beam after it interacts with anatomic tissue attenuation
interaction that occurs with low energy x-rays. the incoming photon interacts with the atom, causing it to become excited. the x-ray does not lose energy, but changes direction coherent scattering
scattering that results from the loss of some energy of the incoming photon when it ejects an outer-shell electron from a tissue atom compton effect
the electron ejected from an atom during a scattering event compton electron
an expression of the luminance at the output phosphor divided by the input exposure rate conversion factor
the difference between the x-ray photons that are absorbed photoelectrically versus those that penetrate the body differential absorption
negatively charged plates along the length of the image-intensifier tube that repel the electron stream, focusing it on the small output phosphor electrostatic focusing lenses
the attenuated x-ray beam leaves the patient and is composed of both transmitted and scattered radiation exit radiation
the use of a continuous beam of x-rays to create dynamic images of internal structures that can be viewed on a display monitor fluoroscopy
an expression of the ratio of the number of light photons at the output phosphor to the number of light photons emitted in the input phosphor flux gain
unwanted exposure on the radiographic image that does not provide any diagnostic information fog
during fluoroscopy, the process of creating a brighter visible image image intensification
a device that receives the radiation leaving the patient image receptor
a layer of the image intensifier made of cesium iodide and bonded to the curved surface of the tube itself. absorbs remnant x-ray photon energy and emits light in response input phosphor
the removal of an electron from an atom ionization
the invisible image that exists on the image receptor before it has been processed latent image
the visible radiographic image on the exposed film after processing manifest image
an expression of the degree to which the image is minified from input phosphor to output phosphor minification gain
a layer in the image intensifier that absorbs the electron stream and emits light in response output phosphor
a layer of the image intensifier made of cesium and antimony compounds. these metals emit electrons in response to light stimulus photocathode
the total absorption of the incident photon by ejecting and inner shell electron photoelectric effect
the electron ejected from an atom during a photoelectric interaction photoelectron
the attenuated x-ray beam leaving the patient that is composed of both transmitted and scattered radiation remnant radiation
incoming photons are not absorbed, but instead lose energy during interactions with the atoms composing the tissue scattering
the ejected electron resulting from the compton effect interaction secondary electron
matter per unit volume, or the compactness of the atomic particles composing the anatomic part tissue density
x-ray photons that pass through the body to expose the image receptor transmission
an expression of the ability of an image intensifier tuber to convert x-ray energy into light energy and increase the brightness of the image brightness gain

Chapter 38 and 39 Vocabulary Crossword Puzzle

Type
Crossword
Description

radiation protection concept meaning, "As Low as Reasonably Achievable" ALARA
The positive electron in the x-ray tube Anode
basic unit of matter Atom
The negative electrode in the x-ray tube Cathode
x-rays at the center of the beam. Central Ray
difference in degrees of blackness on an image contrast
The portion of the x-ray unit that contains the master switch, indicator light, selection buttons, and the exposure button. control panel
the overall darkness or blackness of an image density
the process of recording images of the teeth and adjacent structures by exposure to x-radiation dental radiography
a filmless method of capturing an image and displaying it by using an image receptor, an electronic signal, and a computer to process and store the image. digital imaging
change in the size of an image caused by incorrect vertical angulation distortion
the amount of energy absorbed by tissues dose (of radiation)
a device used to detect and measure an accumulated dosage of radiation dosimeter
a negatively charged particle in the atom electron
the ability to do work energy
flexible arm that is attached to the x-ray tubehead extension arm
effect of radiation that are passed on to future generations through genetic cells genetic effects
film based or digitally produced recordings of anatomic structures image
a recording medium (or device) for an image, normally film, phosphor storage plate (PSP), or a digital sensor. image receptor
the total energy of the x-ray beam intensity
an electrically charged particle ion
process by which electrons are removed from atoms, causing the harmful effects of radiation in humans. ionization
highest voltage of x-ray tube used during exposure kilovoltage peak
time between exposure to ionizing radiation and the appearance of symptoms latent period
device used to protect the reproductive and blood-forming tissues from scatter radiation lead apron
the proportional enlargement of an image Magnification
anything that occupies space and has form or shape matter
one one-thousandth (1/1000) of an ampere; a unit of measurement used to describe the intensity of an electrical current. milliampere
the blurred or indistinct area that surrounds an image penumbra
a minute (tiny) bundle of pure energy that has no weight or mass photon
the most penetrating beam produced at the target of the anode Primary beam
the mean energy or penetrating ability of the x-ray beam. quality

Ch. 8 Image Production Crossword

Type
Crossword
Description

Those x-ray photons removed from the x-ray beam as a result of the uptake of their energy by body tissues absorption
Reduction in the energy or number of photons in the primary x-ray beam after it interacts with anatomic tissue attenuation
An expression of the ability of an image intensifier tube to convert x-ray energy into light energy and increase the brightness of the image in the process brightness gain
An interaction that occurs with low-energy x-rays, typically below the diagnostic range. the incoming photon interacts with the atom, causing it to become excited. the x-ray does not lose energy,but changes direction coherent scattering
Scattering that results from the loss of some energy of the incoming photon when it ejects an outer-shell electron from a tissue atom compton effect
The electron ejected from an atom during a Compton scattering event compton electron
An expression of luminance at the output phosphor divided by the input exposure rate; its unit of measure is the candela per square meter per milliroentgen per second conversion factor
The difference between the x-ray photons that are absorbed photoelectrically versus those that penetrate the body differential absorption
Negatively charged plates along the length of the image-intensifier tube that repel the electron stream, focusing it on the small output phosphor electrostatic focusing lenses
The attenuated x-ray beam leaves the patient and is composed of both transmitted and scattered radiation; also called remnant radiation exit radiation
The use of continuous beam of x-rays to create dynamic images of internal structures that can be viewed on a display monitor fluoroscopy
An expression of the ratio of the number of light photons at the output phosphor to the number of light photons emitted in the input phosphor;represents the tube's conversion efficiency flux gain
Unwanted exposure on the radiographic image that does not provide any diagnostic information fog
During fluoroscopy, the process of creating a brighter visible image image intensification
a device that receives the radiation leaving the patient image receptor
A layer of the image intensifier made of cesium iodide and bonded to the curved surface of the tube itself. It absorbs the remnant x-ray photon energy and emits light in response input phosphor
Removal of an electron from an atom ionization
The invisible image that exists on the image receptor before it has been processed. latent image
the visible radiographic image on the exposed film after processing manifest image
An expression of the degree to which the image is minified (made smaller) from input phosphor to output phosphor Minification gain
A layer in the image intensifier that absorbs the electron stream and emits light in response. output phosphor
A layer of the image intensifier made of cesium and antimony compounds. these metals emit electrons in response to light stimulus photocathode
In the diagnostic range, the total absorption of the incident photon by ejecting an inner shell electron of a tissue atom photoelectric effect
The electron ejected from an atom during a photoelectric interaction photoelectron
The attenuated x-ray beam leaving the patient that is composed of both transmitted and scattered radiation; also called exit radiation remnant radiation
Incoming photons are not absorbed, but instead lose energy during interactions with the atoms composing the tissue scattering
The ejected electron resulting from compton effect interaction secondary electron

Radiology Crossword

Type
Crossword
Description

The energy or penetrating ability of the x-ray beam. Quality
The number of x-ray photons in the beam. Quantity
The product of the quantity and quality per unit of area per unit of time of exposure. Intensity
Regulates the temperature of the cathode filament. Milliamperage
The interval of time during which x-rays are produced. Exposure time
The overall darkness or blackness of an image. Density
How sharply dark and light areas differentiated or separated on an image. Contrast
Radiographic image that appears larger than the actual size of the object it represents. Magnification
A radiographic image that varies in the true size and shape of the object being radiographed. Distortion
The capability of the receptor to reproduce the distinct outlines of an object. Sharpness
Peak voltage applied to the x-ray tube that determines the highest energy of x-ray photon. kVp

X-RAY TUBE Crossword

Type
Crossword
Description

The positive end of the x-ray tube ANODE
The negative side of the x-ray tube CATHODE
The stationary part of the induction motor STATOR
the rotating part of the induction motor ROTOR
where you can find the stator and rotor induction motor
what are two words we use instead of cathode fat cat
what is the anode made of? tungsten
The purpose for the ___________ cut is to guide the electron stream to the target area on the anode. filament
the chemical element of atomic number 42, a brittle silver-gray metal of the transition series, used in some alloy steels. molybdenum
a metal cup, in which the cathode of an X-ray tube is mounted, which electrostatically focuses the electron beam upon the focal spot on the surface of the anode. focusing cup

Radiologic Review Crossword

Type
Crossword
Description

Replaces the word density in digital imaging. Brightness
I1/I2=(D2)2/(D1)2 Inverse Square law
X-rays are a form of what kind of energy? electromagnetic
SI unit for exposure coulomb per kilogram
Used to increase the voltage in X-ray circuit step up transformer
Negative end of the X-ray tube cathode
Changing the SID would decrease exposure
The anode disk and filament wires are made of Tungsten
Obstructs the passage of radiation and is light on images are said to be radiopaque
_____________ kVp will produce short scale contrast. low
Photons produced by the ejection of a K-shell electron from a Tungsten atom is what type of interation? Characteristic
Another name for C1 atlas
Long scale contrast is produced by using a ______ kVp. high
Method used to image supraspinatus outlet Neer
Skull view that demonstrates all 4 sinuses. lateral
X-rays were discovered on November 8, 1895 by Roentgen
Produces light when struck by x-rays in fluoroscopic intensifying tube. input phosphor
Tradiational unit for measuring absorbed dose equivalent of radiation REM
A variable resistor in x-ray circut rheostat

Fluoroscopy Crossword

Type
Crossword
Description

Who invented the fluoroscope? Thomas Edison
Consists of a specialized tube with an image receptor called fluoroscopic screen Fluoroscopy
What recieves the x-ray beam during fluoroscopy? Image Intensifier
What is used for night or dim vision with reduced visual acuity? Rods
The energy is converted into what? Visible Light
Electrons interact with output phosphor producing what? Light
What component of the image intensifier converts visible light into electrons? Photocathode
Brightness gain is a product of what? Flux gain
What is the electron beam of the television camera tube? Collimated
Ability to detect differences in brightness contrast
Term used to describe images in motion dynamic
What happens to patient dose when the image in magnified? Increases
First part of the image intensifier Input phosphor
Which imaging recording system results in highest overall patient and occupational dose? Cinefluoroscopy
Type of the electron emission that occurs after heat stimulation Thermonic

Dental Assistant Crossword

Type
Crossword
Description

The science or study of of radiation as used in medicine radiology
What is the negative elctron in the xray tube Cathode
The difference in the degree of blacknes of an image contrast
The positive electrode in the xray tube anode
The highest voltage on an xray tube used during exposure kilovoltage
The concept of radiation protection that all exposures be kept as low as reasonably possible alara
The process of recording images of the teeth radiography
A tiny bundle of pure energy that has no weight or mass photon
One one thousandth of an ampere milliampere
Digitally produced recordings of anatomic structures Image
Effects of radiation that are passed on to future generations through cells Genetic
Process by which electrons are removed from atoms ionization
Time between exposure to ionizing radiation and appearance of symptoms latent
A negatively charged particle in the atom Electron
The overall darkness of an image density
The blurred area that surrounds an image penumbra
The ability to work energy
An electrically charged particle ion
Effects of radiation that cause illness and are resposible for poor health somatic
This is what it is called when it is trasparent to xrays radiolucent
Tooth enamel, dense areas of bone and metal restorations are examples of radiopaque
Anything that occupies space matter