Biological effects and precautions Flashcards Preview

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Flashcards in Biological effects and precautions Deck (7)
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1
Q

give basic precautions

A
NEVER handle sources with bare hands
Alpha and Beta with thick gloves
Gamma by mechanical device
Store in lead containers
training
time / distance / shielding
double distance quarters dose
ALARP
survey meters
EPD
Hygiene
Decon
upwind
PPE
2
Q

Radioactive damage is divided into 2 main areas

A

Deterministic

Stochastic

3
Q

Define Deterministic effects

A

occur at high dose rates and severity and effect are proportional to dose rate

4
Q

Define stochastic

A

probability of effect is proportional to dose rate but the severity is independent of dose
common effect is cancer

5
Q

list some physical effects of deterministic effects

A
skin reddening
hair loss
impaired fertility
lowered blood count
nausea
vomiting
diarrhea
6
Q

if total dose below 100msv…

A

no risk of immediate effects

7
Q

list dose rates, probable effect in a table

A

5msv v. small increase no immediate
overall cancer observable effects

700 threshold 4 temp can b permanent
msv infertility above 3 sv

1sv/1000 threshold for dependant on rate
msv radiation sickness and health

3sv /3000 red skin may appear days after
msv

5 sv/ 5000 probable dep rate and health
msv lethal