RADT 146 Unit 1 Test Exam Questions
and Answers
Stationary - Answer-Which of the following is not a method of x-ray support?
Leakage radiation - Answer-X-rays that are emitted through the window of protective
housing is called:
Internally insulated with oil to prevent shock and electrocution - Answer-Which
statement is true regarding the protective housing of the x-ray tube?
Anode - Answer-The positive side of the x-ray tube
List all the structures on the negative side of the x-ray tube - Answer-Dual focus,
focusing cup, coiled wires
Stream of electrons (cathode ray) - Answer-What travels from the negative side of the x-
ray tube?
Tungsten - Answer-Primary material used in the construction of the anode
Why is Tungsten the metal of choice? - Answer-High atomic number, high melting point,
readily dissipates heat
Target - Answer-The area of the disc where the electrons strike (rotating - track)
Electron to x-ray efficiency - Answer-1%
Crookes Tube - Answer-Experimental tube used to study the behavior and conduction
of electrons
Material that glows when exposed to cathode rays - Answer-Barium platinocyanide
Year Wilhelm Conrad Roentgen discovered x-rays - Answer-November 8, 1895
Diagnostic imaging - Answer-Term used to describe a medical specialty that employs
radiation, radio freqs, and sound waves to diagnose and treat diseases
Photon - Answer-Bundle of energy
Form of energy highest on the electromagnetic spectrum - Answer-Gamma rays
Wavelengths - Answer-Distance is measured peak-to-peak and valley-to-valley
and Answers
Stationary - Answer-Which of the following is not a method of x-ray support?
Leakage radiation - Answer-X-rays that are emitted through the window of protective
housing is called:
Internally insulated with oil to prevent shock and electrocution - Answer-Which
statement is true regarding the protective housing of the x-ray tube?
Anode - Answer-The positive side of the x-ray tube
List all the structures on the negative side of the x-ray tube - Answer-Dual focus,
focusing cup, coiled wires
Stream of electrons (cathode ray) - Answer-What travels from the negative side of the x-
ray tube?
Tungsten - Answer-Primary material used in the construction of the anode
Why is Tungsten the metal of choice? - Answer-High atomic number, high melting point,
readily dissipates heat
Target - Answer-The area of the disc where the electrons strike (rotating - track)
Electron to x-ray efficiency - Answer-1%
Crookes Tube - Answer-Experimental tube used to study the behavior and conduction
of electrons
Material that glows when exposed to cathode rays - Answer-Barium platinocyanide
Year Wilhelm Conrad Roentgen discovered x-rays - Answer-November 8, 1895
Diagnostic imaging - Answer-Term used to describe a medical specialty that employs
radiation, radio freqs, and sound waves to diagnose and treat diseases
Photon - Answer-Bundle of energy
Form of energy highest on the electromagnetic spectrum - Answer-Gamma rays
Wavelengths - Answer-Distance is measured peak-to-peak and valley-to-valley
