Question 1

Who should determine the exact shielding requirements for a particular imaging facility?

Accepted Answer

The medical physicist is responsible for determining the exact shielding requirements for a particular imaging facility. They have specialized knowledge in radiation safety and can ensure that the appropriate shielding is installed to protect patients, staff, and the public. The administrator of the facility may be involved in the decision-making process, but ultimately it is the responsibility of the medical physicist to determine the specific requirements. The radiologist and radiographer may provide input and feedback, but they do not have the same level of expertise in radiation safety as the medical physicist.

Question 2

Scattered radiation to the lens of the eyes of diagnostic imaging personnel can be substantially reduced by the use of protective eyeglasses fitted with optically clear lenses that contain a minimal lead equivalent protection level of

Accepted Answer

Protective eyeglasses with a lead equivalent of 0.35 mm are commonly used to reduce scattered radiation exposure to the eyes in diagnostic imaging settings.

Question 3

To ensure that the lifetime risk of occupationally exposed persons remains acceptable,an additional recommendation is that the lifetime effective dose in mSv should not exceed

Accepted Answer

According to the International Commission on Radiological Protection (ICRP), the recommended maximum lifetime effective dose for occupationally exposed persons is 10 times their age in years in millisieverts (mSv). This is to ensure that the cumulative exposure to ionizing radiation does not result in an unacceptable increase in the risk of cancer or other diseases. Therefore, option C is the best choice. Option A is too low, and options B and D are too high.

Question 4

_______________ is essentially the radiation output weighted time that the unit is actually delivering radiation during the week.

Accepted Answer

Workload refers to the radiation output weighted time that the unit is actually delivering radiation during a specified period, such as a week, indicating how much the unit is used.

Question 5

Secondary radiation includes
1)leakage radiation.
2)primary radiation.
3)scatter radiation.

Accepted Answer

Secondary radiation refers to any radiation produced as a result of the interactions of primary radiation with matter. Leakage radiation is a type of secondary radiation that occurs when primary radiation escapes through shielding materials. Scatter radiation is also a type of secondary radiation that occurs when primary radiation interacts with matter and changes direction. Therefore, options 1 and 3 correctly describe secondary radiation, making option B the correct answer. Option 2, primary radiation, is not a type of secondary radiation but rather refers to the initial radiation emitted from a source.

Quiz 14: Management of Imaging Personnel Radiation Dose During X-Ray Procedures

Who should determine the exact shielding requirements for a particular imaging facility?

Scattered radiation to the lens of the eyes of diagnostic imaging personnel can be substantially reduced by the use of protective eyeglasses fitted with optically clear lenses that contain a minimal lead equivalent protection level of

To ensure that the lifetime risk of occupationally exposed persons remains acceptable,an additional recommendation is that the lifetime effective dose in mSv should not exceed

_______________ is essentially the radiation output weighted time that the unit is actually delivering radiation during the week.

Secondary radiation includes 1) leakage radiation. 2) primary radiation. 3) scatter radiation.