Wilhem Roentgen discovered X-Rays on what cold and dreary night?
What is November 8, 1895
100
An X-ray Tech might adjust this by 15% instead of doubling their mAs when repeating an exposure that was underexposed
What is kVp
100
This is a tool used after an exposure to determine the intensity of radiation that reached the IR. Every brand of equipment has there own way of demonstrating it.
What is Exposure Index/Indicator
100
This is a special type of radiation exposure that produces a 'live/real-time' video of anatomic structures.
What is Fluoroscopy
100
This Exposure Technique Factor controls the amount of X-Ray photons that will be emitted.
What is mAs
200
This rotating, positively charged electrode acts as the target for the Cathode
What is the Anode
200
This happens when an exposure is made with too little mAs or kVp. The result is a grainy image.
What is Quantum Noise
200
This feature sets the midpoint of the range of anatomic structures recorded. Changing this allows the image brightness to be increased or decreased throughout the entire range
What is Window Level
200
This piece of fluoroscopy equipment is responsible for absorbing the radiation and converting the energy to light, then accelerates the light towards the Output Phosphor
What is the Image Intensifier
200
This is the typical size of a large focal spot size
What is 1 - 1.2 mm
300
This a phenomenon that occurs because of the angle of the Anode. The result is that the X-Ray beam has a greater intensity on the Cathode side of the tube.
What is the Anode Heel Effect
300
This refers to the distance between the center points of two adjacent pixels.
What is Pixel Pitch
300
This can be described as a gradual shift from one object (or shade) to another object (or shade). Also termed low contrast.
What is Long Scale
300
This is a preloaded cassette that can capture a single static image during fluoroscopy.
What is a Spot-film
300
This law can be defined as the intensity of the X-Ray beam decreasing as SID increases
What is the Inverse Square Law
400
This effect is when a primary photon interacts with an outer shell electron of an atom of the patient, resulting in scatter radiation
What is Compton Effect
400
This refers to the area of unsharpness surrounding the perimiter of the image. A Small Focal Spot Size produces less of this.
What is Penumbra
400
This especially occurs with a larger OID. It can be defined as the image appearing larger than the actual object
What is Magnification
400
Fluoroscopies unique automatic adjuster that controls the brightness and contrast of the images.
What is Automatic Brightness Control
400
This technique can be utilized to eliminate excess scatter without using a grid
What is Air Gap Technique
500
This material is what makes up the coiled filament of the Cathode
What is Tungsten
500
This refers to how many shades of gray can be displayed by a given pixel on a computer monitor
What is Pixel Bit Depth
500
The visibility and the accuracy of the anatomic structural lines recorded on the image
What is Sharpness
500
This is the number of output light photons divided by the number of input x-ray photons