EPD

Question 1

EPD’s detect Gamma , X-Ray and high energy Beta radiation. What radiation do they not detect?

Hazmat - EPD

Answer 1

Alpha

Question 2

What measurements does an EPD record?

Hazmat - EPD

Answer 2

Dose rate and absorbed dose

Question 3

At what absorbed dose should an EPD be taken off the run?

Hazmat - EPD

Answer 3

1 milli Sievert - 1mSv

Question 4

What sound is alarm 1, and what does it signify?

Hazmat - EPD

Answer 4

Intermittent double fast beep, indicating a DOSE RATE of 100 micro Sievert’s per hour

Question 5

What sound is alarm 2, and what does it signify?

Hazmat - EPD

Answer 5

Continuous dual tone, indicating an ABSORBED DOSE of 5 milli Sieverts.

Question 6

What sound is alarm 3, and what does it signify?

Hazmat - EPD

Answer 6

Constant single tone (“flatline”) indicating an ABSORBED DOSE of 100 milli Sieverts.

Question 7

What is the maximum permissible dose for a FF?

Hazmat - EPD

Answer 7

10 milli Sieverts, this is why alarm 2 sounds at 5 milli Sieverts.

Question 8

To prevent catastrophic escalation of an incident, or save saveable life, a FF may volunteer to expose themselves to an Emergency exposure. What is this dose and what are the conditions for the volunteer?

Hazmat - EPD

Answer 8

Emergency exposure = 100 milli Sieverts. (mSv)

Volunteer must be male.Female must not be of reproductive capacity, and this should be agreed with OH

Question 9

What action should be taken upon actuation of Alarm 1?

Hazmat - EPD

Answer 9

Check other EPD’s, withdraw until alarm stops (dose rate of 90 micro Sieverts/hr or lower) and inform IC / Control

Question 10

What action should be taken upon actuation of Alarm 2?

Hazmat - EPD

Answer 10

Withdraw immediately and consult HMEPO / SA

Question 11

What action should be taken upon actuation of Alarm 3?

Hazmat - EPD

Answer 11

Withdraw immediately - exceptional dose limit reached.