radiological

Question 1

what is radioactivity?

Answer 1

is the property of radiation emission of a unstable atom to achieve its stable state

process referred to as transformation, decay or disintegration of an atom

Question 2

what are the 4 types of ionizing radiation?

Answer 2

alpha particle
beta particle
gamma ray
neutron particle

Question 3

what is acute radiation syndrome?

Answer 3

high exposure over short period of time
onset of symptoms from hrs to days
three main cate of symptoms
- hematopoietic
- gasintrointestinal
- neurovascular

Question 4

what is the occupational exposure limit?

Answer 4

20 mSv per year avg over 5 years
100mSv in 5 years
max of 50mSv per year

Question 5

what is the public exposure limit?

Answer 5

1 mSv per year

avg over 5 years

Question 6

what is the saf operational exposure?

Answer 6

250mSv cummulative lifetime limit
saf campaign commander can approve up to a max. of 750mSv

nothing more

Question 7

what is saf training exposure?

Answer 7

up to 1mSv per year

Question 8

what is the ALARA principle?

Answer 8

as low as reasonably achievable

Question 9

what are the 3 principles of radialogical defense?

Answer 9

time - min exposure
distance - inverse sq law
shielding - thin layer lead gamma / water concrete neutron

Question 10

what are the 2 non-coventional mode of delivery?

Answer 10

red - radiological exposure device

rdd - radiological dispersal device