Terms
This is the "boiling off" of electrons that occurs at the cathode filament.
What is Thermionic Emission?
This is the charge of the cathode.
What is negative?
All matter is composed of this
What are atoms?
X-rays travel at this
What is the speed of light?
The 2 types of focal spots
What are large and small?
This is the percentage of the energy used to produce x-rays are released as heat.
What is 98-99%?
All early x-ray tubes were known as this.
What are Crooke's tubes?
These are used to absorb the scatter radiation exiting the patient.
What are grids?
This is the amount of energy that holds electrons of an atom in their orbits.
What is binding energy?
This is the source of electrons in the x-ray tube.
What is the cathode?
The amount or quantity of matter is known as this
What is mass?
X-rays are types of ____ radiation.
What is ionizing radiation?
Density is controlled by this.
What is mAs?
Coherent scattering is also known as this.
What is Thompson's scattering?
Who is Roentogen?
The autotransformer is located here
What is the Primary or Control side?
Energy in motion is called this.
What is kinetic energy?
The line focus principle is the result of the electron beam striking this
What is the angled anode target?
These are the 3 components of atoms
What are protons, neutrons, and electrons?
This type of radiation comes from the sun, stars, and the earth's rocks.
What is background radiation?
Contrast is controlled by this.
What is KVP?
This type of interaction causes increased radiation dose to the patient.
What is Photoelectric Absorption?
This organization provides educational opportunities to x-ray technologists.
What is the ASRT?
This device is attached to the autotransformer and measures the voltage output
Geometric blur, especially at the periphery, is also known as this
What is penumbra?
The focusing cup has this charge
What is negative?
The elements on the periodic table are listed in ascending order based on this
What is their atomic number?
Radiation can be classified as these 2 types.
What is ionizing and nonionizing?
Improper alignment of the x-ray tube causes this.
What is distortion?
In Compton effect the x-ray photon interacts with these.
What are outer shell electrons?
This is the device that allows you to measure part thickness.
What are calipers?
This timer terminates the exposure at a predetermined and selected mAs value.
What is the mAs timer?
This is the degree of information seen of the anatomy on an x-ray image.
What is recorded detail?
The filament in the x-ray tube is composed of this material.
What is tungsten?
When an atom loses or gains electrons, it becomes this.
What is an ion?
This type of energy occurs when electrons interact at the anode target.
What is radiant energy?
The 3 geometric factors include:
What is recorded detail, distortion, and magnification?
Pair production results in this.
What are 2 electrons?
Trendelenburg position means this.
What is head lower than the feet?
The filament circuit delivers what to the x-ray tube.