ERP4 radiological ops

Question 1

Rad ops

what are the 4 ways of exposure?

Answer 1

inhalation, ingestion, absorption, penetration/injection

*exposure is when radiation enters the body

Question 2

what are the 4 types of radiation and what is the proper shielding?

Answer 2

Alpha-intact skin, paper, inches of air
Beta-1” of plastic, aluminum, glass
Gamma- several inches of lead, concrete, 1ft of dirt or water
Neuron- 3ft of water, 1ft of concrete, 10” of plastic

Question 3

what is the difference between dose and rate?

Answer 3

dose- amount of radiation absorbed by body

rate- how fast the radiation is deposited

Question 4

the Rad50 alerts at what rate, and measures up to what rate?

Answer 4

alerts at rate of 1mr/hr

measures up to 50mr/hr

Question 5

what is normal background radiation?

Answer 5

.02mr/hr -.05mr/hr

Question 6

What is a radiological incident

Answer 6

reading above background from legitimate source,but has not been released from container
*reading must be confirmed by second meter

Question 7

what is a radiological emergency

Answer 7

source is out of container, confirmed by second meter

Question 8

at a radiological event how often are members rotated?

Answer 8

rotated at dose levels of 5rem or when 1 SCBA tank is expended

Question 9

what is the decision dose for the following emergencies:
general operations at a radiological emergency,
protection of major property,
life saving or protection of large populations,
life saving for catastrophic event

Answer 9

50rem for life saving for catastrophic event
25rem for life saving or protection of large populations
10rem for protection of major propert
5rem for general operations

Question 10

rad ops

Distance vs Rate. if distance is ____the rate will be ____.

Answer 10

if distance is doubled the rate will be quartered.

ex 100r/hr at 1ft then it will be 25r/hr at 2ft

Question 11

T/F

rad50 takes 1 min to show a change on the LCD screen

Answer 11

true

Question 12

rad ops
at what rate is the hotline established?
where is the cold zone?
where is the warm zone?

Answer 12

hotline is at 2mr/hr
cold zone is less than 2mr/hr
warm zone is small area for decon or safe refuge area

Question 13

T/F
rad ops
each member is responsible for monitoring their own dose, when the dose reaches 5REM rotate out, if unable to leave due to manpower notify officer every additional 5rem

Answer 13

true

Question 14

how long are potassium iodine pills good for

Answer 14

5yrs

Question 15

what kind of radiation does the ultraRadiac detect?

Answer 15

gamma and x-ray

Question 16

ultra radiac
how do you see the stay time?
what does blinking all 9’s mean, all 0’s?
how do you clear it?

Answer 16

stay time - press alarm button
all 9’s- passed all tests
all 0’s- instrument failure place OOS
clear - press and hold dose + clr/test at same time

Question 17

ultra radiac
what is the low alarm rate/dose
what is the high alarm rate/dose

Answer 17

low alarm - 2mr/hr , 5 REM
high alarm- 50r/hr, 12 Rem
*do NOT mark the ultra radiac