Quiz 2 Flashcards
(22 cards)
Which of the following photon-tissue interactions primarily involves K-shell electrons?
Photoelectric interaction
Which of the following may result in occupational exposure for the radiographer ?
Compton scatter
The principle function of filtration in the X-ray tube is to reduce:
Increases quality and reduces patient dose
The two most common interactions between X-ray photons and matter that occurs in diagnostic radiology are:
Photoelectric and Compton
The principle function of filtration in the X-ray tube is to reduce:
Patient skin dose
The two most common interactions between X-ray photons and matter that occurs in diagnostic radiology are:
Compton scattering and photoelectric absorption.
Characteristics of the metallic element in tungsten (that is used for the filament and anode) include:
1. ready dissipation of heat
2. high melting point
3. high atomic number of # of 74
4. All of the above
All of the above
The first radiograph produced by Dr. Roentgen was of
Wife’s hand (Anna Bertha Ludwig)
The protective tube housing is lined with
Lead
The two types of anode designs are stationary and
Rotating
The atomic number of tungsten is
74
Filters used in radiographic x-ray tubes are generally composed of what material?
Aluminum
Aluminum filtration has its greatest effect on high energy x-ray photons or low energy x-ray photons ?
Low
Dual focusing tube refers to a tube with what ?
Two filaments
What component of the X-ray tube is responsible for concentrating the electron cloud before they accelerate toward the anode:
Focusing cup
Which of the following is the date of the discovery of X-rays?
1895
Who discovered X-rays?
Wilhelm Röntgen
Total filtration refers to inherent and added filtration combined.
True or false
True
We get total filtration by adding ___
Inherent
Where are x rays produced ?
Actual focal spot in anode
The anode heel effect states the intensity of the X-ray beam is less on the:
Anode side
The radiographic image is formed by:
Exit radiation
