10 CFR 20 & Procedures

Question 1

Define the term Stochastic

Answer 1

Randomly occuring health effects for which the probability of the effect occuring varies linearly with dose and has no threshold

Question 2

Give an example of a 10 CFR 20 stochastic limit

Answer 2

The annual limit for uniform irradition of the whole body

Question 3

Define the term non-stochastic

Answer 3

Health effects in which the severity of the effect varies with dose and for which a threshold is beleived to exist.

Question 4

Give an example of a 10 CFR 20 non-stochastic limit

Answer 4

THe annual limits to the lens of the eyes.

Question 5

What is the relationship between the annual limit on intake (ALI) and the derived air concentration (DAC)

Answer 5

5000 mrem = 1 ALI = 2000 DAC-hrs

Question 6

What is the 10 CFR 20 dose limit for Annual Total Effective Dose Equivalent (TEDE)

Answer 6

5 Rem

Question 7

What is the 10 CFR 20 dose limit for Annual Eye dose equivalent (H_eye)

Answer 7

15 Rem

Question 8

What is the 10 CFR 20 dose limit for Annual Shallow Dose equivalent (Skin & Extremities, H_s)

Answer 8

50 Rem

Question 9

What is the 10 CFR 20 dose limit for Declared Pregnant Female Worker

Answer 9

500 mRem per gestation period

Question 10

What is the administrative dose limit for Annual Total Effective Dose Equivalent (TEDE)

Answer 10

2 Rem

Question 11

What is the administrative dose limit for Annual Eye dose equivalent (H_eye)

Answer 11

10 Rem

Question 12

What is the administrative dose limit for Annual Shallow Dose equivalent (Skin & Extremities, H_s)

Answer 12

30 Rem

Question 13

What is the administrative dose limit for Declared Pregnant Female Worker

Answer 13

400 mRem per gestation period

Question 14

What is the administrative dose level of RMT-2080-TSC-001 for Protecting Valuable Equipment

Answer 14

10 Rem

Question 15

What is the administrative dose level of RMT-2080-TSC-001 for Protection of large Population Groups

Answer 15

<= 25 Rem

Unless:

• Dose to the public is less than to worker
• Voluntary
• Risks are understood
• Signed waiver

Question 16

What is the administrative dose level of RMT-2080-TSC-001 for Life Saving Actions

Answer 16

< 25 Rem

Unless:

• Voluntary
• Risks are understood
• Signed waiver

Question 17

An area accessible in which the radiation level could result in a dose equivalent of 5 mrem in 1 hour at 30 cm

Answer 17

Radiation Area

Posting must contain:

• Caution
• Rad Area

Question 18

An area accessbile in which radiation levels could result in a dose equivalent in excess of 100 mrem in 1 hour at 30 cm

Answer 18

High Radiation Area

Posting must contain:

• Caution
• High Rad Area

Question 19

An area accessbile in which radiation levels could result in a dose equivalent in excess of 1000 mrem in 1 hour at 30 cm

Answer 19

Locked High Radiation Area

Posting must contain:

• Caution
• Locked High Rad Area

Question 20

An area accessbile in which radiation levels could result in a dose equivalent in excess of 500 rads in 1 hour at 1 meter

Answer 20

Very High Radiation Area

Posting must contain:

• Grave Danger

Question 21

An area where loose surface contamination may exceed 1000 dpm beta-gamma on 100 cm² smear or 20 dpm/100 cm² of alpha

Answer 21

Contamination Area

Posting must include:

• Caution
• Contamination Area

Question 22

An area where average contamination levels are, or anticipated to be, greater than or equal to 100,000 dpm/100cm²

Answer 22

High Contamination Area

Posting must include:

• Caution
• High Contamination