Radiation Protection

Question 1

What does IR(ME)R stand for?

Answer 1

Ionising radiation medical exposure regulations. Protects patients.

Question 2

What does ALARP mean?

Answer 2

As Low As Reasonably Practical: employers are required to keep radiation doses to a minimum.

Question 3

What do we mean by justification?

Answer 3

it must be medically indicated and useful

Question 4

What do we mean by optimisation?

Answer 4

Keeping the dose ALARP for the medical task.

Question 5

Who are the IR(ME)R duty holders?

Answer 5

Employer: identify duty holders, provide the training
Referrer: supply practitioner with sufficient medical data to enable justification.
Practitioner: ARSAC holder, provide justification of exposure
Operator: technologists/ people administering radiation
MPE (medical physics expert): advise on dosimetry, treatment planning, equipment, techniques etc.

Question 6

What does IRR stand for?

Answer 6

Ionising radiation regulations. Protects employees.

Question 16

What is a controlled area?

Answer 16

Controlled area to restrict exposure. Dose limits: 6mSv

Question 24

What is a supervised area?

Answer 24

conditions are kept under review but not as strict as a controlled area. dose limits: 1 mSv

Question 25

What whole body dose would a classified worker have?

Answer 25

> 6mSv/year
150 mSv/ year to extremities

Question 25

How do we restrict exposure to employees and the public?

Answer 25

Monitoring, efficient working methods, training, shielding/ time/ distance

Question 26

What is SAUE?

Answer 26

significant accidental or unintended exposures

Question 27

Why are children radiosensitive?

Answer 27

Because they are growing, they have more DNA divisions so any mutations are more likely to turn into cancer.