Type
Crossword
Description

This crossword contains the following questions and answers:

X-rays that interact with the whole atom Low energy
X-rays that interact with electrons Moderate energy
X-rays that interact with the Nuclei High energy
Straight out of... Compton
X-rays scattered back in the direction of the incident x-ray beam Backscatter
Produce the dark areas of a radiograph Radiolucent
Anatomical structures with high x-ray absorption characteristics Radiopaque
Differential absorption ___________ as the kVp is reduced increases
The product of absorption and scattering Attenuation
X-ray interactions with energy below approximately 10 keV Coherent
Quantity of matter per unit volume Mass density
Contrast used during UGI Barium
The ejection of a nuclear fragment is part of which interaction Photodisintegration
Which tissue x-ray interaction results in the production of annihilation radiation Pair production
_________ has an anatomic number of 13.8 Bone
Probability of a Compton even is ___________ proportional to the x-ray beam inversely
First name Bob, last name Grossman

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X-ray Interactions Crossword

Type
Crossword
Description

This crossword contains the following questions and answers:

The reduction in the number of x-ray photons in the beam, and subsequent loss of energy, as the beam passes through matter. attenuation
Scatter interaction between x-rays and matter characterized by interaction between a very-low-energy x-ray photon and matter causing the electron to vibrate at the same frequency as the incident photon, which then produces a secondary photon with the same energy and wavelength as the incident photon but that travels in a different direction coherent
The dislodged electron resulting from Compton scattering; also called a recoil electron. recoil
An interaction between x-rays and matter characterized by an incident x-ray photon interacting with a loosely bound outer-shell electron, resulting in removal of the electron from the shell, which then proceeds in a different direction as a scattered photon. compton
The reaction of electrons dropping into the holes created during a characteristic interaction until there is only a hole in the outer shell. cascade
The result of scattered photons striking the radiographic film and placing a density on the film that is unrelated to the patient’s anatomy is radiation ___. fog
An interaction between x-rays and matter characterized by an incident electron with slightly greater energy than the binding energy of the electrons in the inner shells, ejecting an electron from the inner shell while being absorbed in the reaction, resulting in an ionized atom. photoelectric
Type of radiation created by the electron transfer from one shell to another but occurring outside the x-ray target. secondary
The interaction of x-ray photons and matter that causes a change in direction of the photons. scattering
Name of electron that is ejected in a photoelectric absorption interaction. Photoelectron

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Chapter 8 Image Production Crossword

Type
Crossword
Description

This crossword contains the following questions and answers:

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

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Ch. 8 Image Production Crossword

Type
Crossword
Description

This crossword contains the following questions and answers:

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

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X-RAY TUBES Crossword

Type
Crossword
Description

This crossword contains the following questions and answers:

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

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Radiography & CT (2) Crossword

Type
Crossword
Description

This crossword contains the following questions and answers:

Package of X-ray energy Photon
The distance between two peaks of a wave Wavelength
The number of wavelenghts passing a set point per second Frequency
The negative part of the X-ray tube Cathode
The name of the effect that occurs when an X-ray photon interacts with a free electron Compton
A property of X-rays that is one of the main reasons for radiation protection Ionisation
When any electromagnetic radiation is emitted, the intensity of the radiation will decrease the further away it travels from the source. What is this called? Inverse square law
Name given to radiation that travles in any direction. Scatter
The property of X-rays that means they can be stopped or slowed down as they pass through the patient Absorption
= absorption + scatter Attenuation
Term used to describe a very dense tissue, appearing white on radiographs Radiopaque
Describes the amount of blackening seen on a radiographic film Density
Refers to sharpness of image and clarity of structures Definition
The difference in density on a radigraph Contrast

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Radiologic Review Crossword

Type
Crossword
Description

This crossword contains the following questions and answers:

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

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Waves, Sound, and Light Crossword

Type
Crossword
Description

This crossword contains the following questions and answers:

A wave that requires a medium through which to travel mechanical wave
A wave that moves the medium in a direction prependicular to the direction in which the wave travels transverse wave
A wave that moves a medium in a direction parallel to the direction in which the wave travels longitudinal wave
The highest part of a transverse wave crest
The part of a longitudinal wave where the particles of the medium are close together compression
The part of a longitudinal wave wheree the particles of the medium are far apart rarefaction
The number of complete waves that pass a givin point in a certian amount of time frequency
The lowest part of a transverse wave trough
The distance between two corresponding parts of a wave wavelenght
Electromagnetic waves with the longest wavelenghts and lowest frequencies radio waves
Radio waves with the shortest wavelenghts and the highest frequenies microwaves
Electromagnetic waves with the wavelenghts shorter than radio waves but longer than visible light infrared rays
Electromagnetic waves that are visible to the human eye visible light
Electromagnetic waves with the wavelenghts shorter tahn visible light ,but longer than X-rays Ultraviolet rays
Electromagnetic waves with wavelenghts shorter than ultraviolet rays, but longer than gamma rays X-rays
Electromagnetic waves with the shortestwavelenghts and highest frequencies gamma rays
Transverse wave that transfer electrical and magnetic energy electromagnetic wave
The change in frequency of awave as its source move in relation to an observer Doppler effect
The material through which a wave travels medium
An image that shows regions of different temperatures in different colors thermogram

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Dental Assistant Crossword

Type
Crossword
Description

This crossword contains the following questions and answers:

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

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Rad Tech Week 2018 Crossword

Type
Crossword
Description

This crossword contains the following questions and answers:

kVp is an acronym for ______? KILOVOLTAGE PEAK
If something is non-cancerous, it is ________. BENIGN
These are precious, made with lead, and a tech will dig through trash to recover them. Marker
This is used to focus or narrow a beam of waves. COLLIMATOR
The X-ray beam radiates from the _________ on a C-arm. BOTTOM
The target of an X-ray tube is made from ________. TUNGSTEN
Large body parts, such as L5/S1 spot film, require a _________. GRID
Attenuation of radiation is due to _______. SCATTER
This is used in Fluoroscopic studies to highlight the bowel for UGI and small bowel studies. BARIUM
Last name of the person that discovered X-rays, accidentally, making our profession possible? ROENTGEN
The filament is in the _______ of the X-ray tube. CATHODE
The tungsten radiation target is in the _______ of an X-ray tube. ANODE
What is the degree of density differences between two areas on a radiograph? CONTRAST
mAs is an acronym for __________. MILLIAMPERE SECOND
What body part was the first X-ray of? HAND

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waves Crossword

Type
Crossword
Description

This crossword contains the following questions and answers:

Any disturbance that transmits energy through matter or space. wave
A solid, liquid or gas that is vibrated. Medium
Waves in which the particles of the medium vibrate with an up and down motion. Transverse Wave
Waves in which the particles of the medium vibrate back and forth along the path that the wave travels. Longitudinal Wave
In a body of water, is an example of a combination of both transverse and longitudinal waves. Surface Wave
Maximum distance the wave vibrates from the rest position. Amplitude
The distance between any adjacent crests or compressions in a series of waves. Wavelength
The number of waves produced in a given amount of time. Frequency
The speed at which a wave travels. Wave Speed
Occurs when a wave bounces back after striking an object. Reflection
The bending of waves around a barrier or through an opening. Diffraction
The result of two or more waves overlapping. Interference
When an object vibrates at or near the resonant frequency of the second object causes the second object to vibrate. Resonance
Sounds with frequencies that are higher than 20,000HZ. Ultrasonic
The apparent change in the frequency caused by the motion of either the listener or the source of the sound. Doppler Effect
A reflected sound wave. Echo
The emission of energy in the form of EM waves. Radiation
The transfer of energy carried by light waves to particles of matter. Absorption
Matter through which visible light is easily transmitted. Transparent
High energy electromagnet waves that are between ultraviolet light and gamma rays in the electromagnetic spectrum. X-Rays

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