Lra 211 Radiology Image Final Exam Part 2 (Goodluck)

LRA 211 RADIOLOGY IMAGE FINAL EXAM PART 2
(GOODLUCK)
The protective tube housing helps to
Answers :-Keep the tube cool.
-prevent electrical shocks to the radiographer.
-limit leakage radiation.
By regulation, x-ray tube leakage radiation can be no more than:


Answers :100 mR/hour @ 1 meter
The primary purpose of the glass or metal enclosure is to


Answers :maintain a vacuum within the tube.
The target window is usually approximately


Answers :5 cm^2
The rotating anode design uses a disc whose core is made of


Answers :molybdenum
Tungsten is used to coat the anode disc because it has.


Answers :a high atomic number
The portion of the induction motor that is outside the tube enclosure is the


Answers :stator
the process of a series of outer-shell electrons filling inner-shell vacancies is
known as

, Answers :characteristic cascade
Bremsstrahlung interactions may occur only when the incident electron interacts
with


Answers :the force field around the nucleus.
The energy of the brems photon depends on the


Answers :-energy of the filament electron as leaves the tungsten atom
-strength of the attraction b/t the electron and the nucleus
-original energy of the filament electron
Which of the following radiographic factors will affect x-ray quantity?


Answers :-Kilovoltage-peak (kVp)
-Source-image-distance (SID)
-Beam filtration
Filtration placed in the path of the x-ray beam


Answers :absorbs low energy photons
An important purpose of filtration is to:


Answers :decrease patient skin dose
Half-value layer is a measure of quality. True/False


Answers :true
Most classical scatter photons