RADIATION SAFETY EXAM REVIEW
TITLE 17 QUESTIONS AND ANSWERS
What is the mechanical support of the tube head means? - Answer-The mechanical
support of the tube head can be adjusted to remain stable during exposure and shall not
be hand held unless manufacturer designed system to be hand held while operating
What is the safety distance between operator and patient while taking x-ray? - Answer-
6ft
Define scatter radiation - Answer-radiation that changes direction when it hits the patient
or table
What is the thickness required in a protective apron covering the gonadal area? -
Answer-At least 0.5 mm
What to include in an X-ray control panel - Answer-Timers, photo timers and brightness
stabilizers
What is the thickness of aluminum filter in the useful beam? - Answer-.5mm to 2.0 mm
What does dead man switch mean - Answer-The exposure control switch shall be of the
" dead man " type
Any room with installed x-ray machines what sign should be posted? - Answer-A
caution of radiation sign
What are the size of useful beam following collimation? - Answer-Restriction of the
useful beam to an appropriate size 2 3/4 in (7cm )at the skin surface
Who is required to be in radiographic room during x-ray exposures? - Answer-The
certified and or licensed x ray technician
Who is allowed to be exposed to the useful beam? - Answer-Individuals shall not be
exposed to the useful beam as it is prohibited
What is leakage radiation? - Answer-less than 100 mR/hr @ 1 m - x-rays escaping
protective tube housing
What is useful beam? - Answer-X-ray that passes through the tube housing on its
intended path
TITLE 17 QUESTIONS AND ANSWERS
What is the mechanical support of the tube head means? - Answer-The mechanical
support of the tube head can be adjusted to remain stable during exposure and shall not
be hand held unless manufacturer designed system to be hand held while operating
What is the safety distance between operator and patient while taking x-ray? - Answer-
6ft
Define scatter radiation - Answer-radiation that changes direction when it hits the patient
or table
What is the thickness required in a protective apron covering the gonadal area? -
Answer-At least 0.5 mm
What to include in an X-ray control panel - Answer-Timers, photo timers and brightness
stabilizers
What is the thickness of aluminum filter in the useful beam? - Answer-.5mm to 2.0 mm
What does dead man switch mean - Answer-The exposure control switch shall be of the
" dead man " type
Any room with installed x-ray machines what sign should be posted? - Answer-A
caution of radiation sign
What are the size of useful beam following collimation? - Answer-Restriction of the
useful beam to an appropriate size 2 3/4 in (7cm )at the skin surface
Who is required to be in radiographic room during x-ray exposures? - Answer-The
certified and or licensed x ray technician
Who is allowed to be exposed to the useful beam? - Answer-Individuals shall not be
exposed to the useful beam as it is prohibited
What is leakage radiation? - Answer-less than 100 mR/hr @ 1 m - x-rays escaping
protective tube housing
What is useful beam? - Answer-X-ray that passes through the tube housing on its
intended path
