Module 5

Question 1

Two systems of measurements

Answer 1

Traditional (British)
Systeme internationale (SI)

Question 2

Exposure units for SI and traditional

Answer 2

SI: coulombs per kilogram (C/kg)
Trad: roentgen (R)

Question 3

1 R = ? C/kg

Answer 3

2.58 x 10^-4

Question 4

Roentgen (R) is the quantity of?

Answer 4

Radiation that will produce 2.08 x 10^9 ion pairs in one cm^3 of air

Question 5

Dose units for SI and Traditional

Answer 5

SI: gray (Gy)
Trad: radiation absorbed dose (rad)

Question 6

1 Gy = ? Rad

Answer 6

100

Question 7

Dose equivalent units for SI and traditional

Answer 7

SI: Sievert (Sv)
Trad: radiation equivalent in man (rem)

Question 8

Sv = ? x Wr

Answer 8

Gy

Question 9

1 Sv = ? Rem

Answer 9

100

Question 10

Rem = ? x Wr

Answer 10

Rad

Question 11

1 cGy = ? Rad

Answer 11

1

Question 12

4 characteristics that the Law of Beegonié and Tribondeau depend on

Answer 12

Age
Differentiation
Metabolic rate
Mitotic rate

Question 13

Short term somatic effects

Answer 13

3 months of exposure
High radiation doses
Body system affected: CNS, GI, hematological

Question 14

Long term/ latent somatic effects

Answer 14

30+ years
Affect body if the irradiated indiv. Directly
Damage to reproductive cells

Question 15

Stochastic effects

Answer 15

No specific amount of exposure needed

Higher chance when dosage is increased

No correlation btn dosage and severity

Maybe repeated small doses

Question 16

Three principal methods of protection

Answer 16

Time - Min
Distance - Max
Shielding - always

Question 17

Dosimeters are what?

Answer 17

Monitors used for personal radiation exposure
Worn at the collar with label facing out

Question 18

How to find cumulative (lifetime ) dose limit

Answer 18

1 rem (10 mSv) x age

Question 19

Effective dose (EfD) limit per year for occupational exposed

Answer 19

50 mSv

Question 20

Type of personal radiation dosimeter

Answer 20

OSL

Question 21

Genes that are expressed in the individual

Answer 21

Dominant

Question 22

Long term radiation effects that are apparently random and have no threshold amount of exposure that must be received for them to occur

Answer 22

Stochastic

Question 23

The effective dose equivalent limit for whole body, occupational radiation exposure to nonpregnant radiation workers older than 18 years

Answer 23

50 mSv

Question 24

The term radiation sickness refers to

Answer 24

Short term gastrointestinal effects

Question 25

Short term, predictable radiation affect typically occur as a result of

Answer 25

High doses of radiation exposure, such as those receive and radiation therapy 

Question 26

1 cGy = ? Rad

Answer 26

1