Anatomy of the X-Ray Machine Flashcards
X-Rays are produced in an _____ _____
X-ray Tube
What are the components of the X-ray tube?
Cathode (negatively charged)
Anode (positively charged)
The ____ provides source of electrons and directs these electrons toward the _____
Cathode, Anode
The filament is constructed of _____ because of the high melting point and high atomic number
Tungsten
Amount of electrical energy being applied to the filament. Describes the number of x-rays produced during exposure.
Milliamperage (mA)
Quantity of electrons released depons on ____ of the filament
Heat
What are the two types of anodes?
Stationary and Rotation
Anode found in dental and small portable radiography units
Stationary Anode
______ acts as a conductor of heat and draws the heat away from the tungsten target
Copper
How are x-rays cooled?
Copper at the base of target, surrounding glass tube with oil
The ____ the focal spot, the less clarity
Larger
______ anode can have small focal spot and still withstand a great amount of heat
Rotating
More x-rays leave tube on ____ side of the tube, therefore the _____ side of the animal should be placed closer to the cathode
Cathode, thicker
The peak energy of the x-rays which determines the quality of the x-ray beam
Kilovoltage peak (kVp)
Process when metal deposits that form on inner lining of glass due to overheating
Arcing
Dictates maximum combinations of kVp and mA without overloading the tube
X-ray tube rating
4 factors of x-ray tube rating
Focal spot size
Target angle
Anode speed
Electrical current
Process of changing alternating current (AC) to direct current (DC)
Rectification
