Bushong 7-1 Worksheets
The three principal parts of an x-ray imaging system are: - answerx-ray tube, control
console, high voltage generator
The primary purpose of the glass envelope of an x-ray tube is to: - answerProvide a
vacuum
The protective housing of an x-ray tube is designed to: - answerReduce the hazard of
leakage radiation
A diagnostic x-ray tube is an example of which electronic device? - answerDiode
The large filament is used during radiography when the heat load is: - answerHigh, and
visibility of detail is less important
In most x-ray tubes, there are two filaments to: - answerProvide two focal spots
The focusing cup: - answerIs the grid in a grid controlled x-ray tube
Once filament temperature becomes adequate a further small rise in filament
temperature will cause tube current to: - answerIncrease very much
The cathode beam of an x-ray tube is the: - answerFocused electron beam within the
tube
The x-ray tube current: - answerIs controlled by the filament current
Most x-ray tubes used for radiography: - answerAre dual-focus tubes
The cathode is: - answerOne of the two parts of the diode
When a filament burns out: - answerthe filament current goes to zero
The space charge effect: - answerOccurs in the vicinity of the cathode
The x-ray tube filament: - answerConducts approximately 5 A
If saturation is achieved and the filament current is fixed, tube current: - answerRemains
fixed
X-ray tube current: - answerIs zero when filament current is below thermionic emission
The three principal parts of an x-ray imaging system are: - answerx-ray tube, control
console, high voltage generator
The primary purpose of the glass envelope of an x-ray tube is to: - answerProvide a
vacuum
The protective housing of an x-ray tube is designed to: - answerReduce the hazard of
leakage radiation
A diagnostic x-ray tube is an example of which electronic device? - answerDiode
The large filament is used during radiography when the heat load is: - answerHigh, and
visibility of detail is less important
In most x-ray tubes, there are two filaments to: - answerProvide two focal spots
The focusing cup: - answerIs the grid in a grid controlled x-ray tube
Once filament temperature becomes adequate a further small rise in filament
temperature will cause tube current to: - answerIncrease very much
The cathode beam of an x-ray tube is the: - answerFocused electron beam within the
tube
The x-ray tube current: - answerIs controlled by the filament current
Most x-ray tubes used for radiography: - answerAre dual-focus tubes
The cathode is: - answerOne of the two parts of the diode
When a filament burns out: - answerthe filament current goes to zero
The space charge effect: - answerOccurs in the vicinity of the cathode
The x-ray tube filament: - answerConducts approximately 5 A
If saturation is achieved and the filament current is fixed, tube current: - answerRemains
fixed
X-ray tube current: - answerIs zero when filament current is below thermionic emission
