Important Numbers

Question 1

Nuclear Energy Work - 1 year

Answer 1

50 mSv / 5 mR

Question 2

Nuclear Energy Work - 5 year

Answer 2

100 mSv / 10 mR

Question 3

Pregnant NEW

Answer 3

4 mSv / 0.4 mR

Question 4

Non-NEW - 1 year

Answer 4

1 mSv / 0.1 mR

Question 5

Lens of Eye - NEW (1yr)

Answer 5

150 mSv / 15 mR

Question 6

Lens of Eye - Non-NEW (1yr)

Answer 6

15 mSv / 1.5 mR

Question 7

Skin - NEW (1yr)

Answer 7

500 mSv / 50 mR

Question 8

Skin - Non-NEW (1yr)

Answer 8

50 mSv / 5 mR

Question 9

Hands & Feet - NEW (1yr)

Answer 9

500 mSv / 50 mR

Question 10

Hands & Feet - Non-NEW (1yr)

Answer 10

50 mSv / 5 mR

Question 11

Radiation Barrier Limit

Answer 11

0.1 mSv/hr / 10 mR/hr

Question 12

Storage Area

Answer 12

0.025 mSv/hr

Question 13

Surface of Device

Answer 13

2 mSv/hr (200 rem)

Question 14

Survey Meter

Answer 14

20 micro Sv to 100 mSv/hr

Question 15

Survey Calibration

Answer 15

1 per yr

Question 16

Leak Test

Answer 16

once/yr or new source

Question 17

Long Handle Tongs

Answer 17

Min 1.5 metres (6ft)

Question 18

Collimators

Answer 18

Shielding factor of 100

Question 19

Audible Dosimeters

Answer 19

Alarms @ 5mSv/hr or total dose 2 mSv

Question 20

Prompt Effects

Answer 20

0-250 mSv = no obvious injury
250-500 mSv = possible temporary blood changes
500-1000 mSv = blood & cell changes
1 Sv = some injury, no disability
1-2 Sv = injury, possible disability 
2-4 Sv = injury & disability
5 Sv = fatal to 50% w/in 30 days
10 Sv = fatal to all