Nuclear safety

Question 1

Roentgen

Answer 1

Exposure in air- when we check things

Question 2

F Factor fat

Answer 2

100=kev photons 0.91

Question 3

F Factor muscle

Answer 3

100=kev photons 0.96

Question 4

F Factor bone

Answer 4

100=kev photons 1.5

Question 5

Rad

Answer 5

Roentgen x F factor = Absorbed dose 1RAD=100erg/gr

Question 6

SI unit for radiation absorbed dose

Answer 6

100 Rad= 1 Gray

Question 7

Quality Factor for X and Gamma rays and Beta particles

Answer 7

determined by linear energy transfer = 1.0

Question 8

Quality factor for Neutrons and protons

Answer 8

determined by linear energy transfer = 10.

Question 9

REM or Roentgen equivalent Man

Answer 9

REM= RAD x QF

Question 10

Home many REM in 1 Rad of Gamma Rays

Answer 10

Rad (1) x QF of gamma Ray (1)=1 REM

Question 11

Quality factor of Alpha particles

Answer 11

20

Question 12

1 Rad of alpha particlies = REM?

Answer 12

20 REM =Rad (1) x QF of alpha particle (20)=20 REM

Question 13

SI for REM

Answer 13

1 Sievert = 100 REM

Question 14

Roentgen

Answer 14

Exposure in air

Question 15

RAD

Answer 15

radiation ABSORBED dose Rx F

Question 16

REM

Answer 16

Roentgen equivalent man (RAD x QF)

Question 17

SI unit of GrAy

Answer 17

100 RAD ABSORBED DOSE

Question 18

SI unit of Sievert

Answer 18

100 REM dose equivalent

Question 19

Effective dose equivalent

Answer 19

measure of theroretical risk units in REM or Sievert

Question 20

Background radiation natural source

Answer 20

360mREM

Question 21

total background radiation including medical procedure

Answer 21

620mRem

Question 22

Non occupational Dose limits from occupational sources (shielding or rooms/breastfeeding)

Answer 22

1mSV or 100mREM

Question 23

non occupational dose limits from family member released to public

Answer 23

5mSV or 500mRem

Question 24

occupational whole body dose limit

Answer 24

5REM or 0.05Sv or 5000mREM

Question 25

occupational dose for skin or extremity

Answer 25

50 Rem or 0.5Sv

Question 26

occupational dose for lens of eye

Answer 26

15 Rem 0.15Sv

Question 27

occupational dose Quarterly level 1 whole body dose limit

Answer 27

125mRem/q

Question 28

occupational dose Quarterly level 2 whole body dose limit

Answer 28

375mRem/q

Question 29

occupational dose Quarterly level 1 extremity and skin

Answer 29

1250mRem/q

Question 30

occupational dose Quarterly level 2 extremity and skin

Answer 30

3750 mRem/q

Question 31

occupational dose Quarterly level 1 eye

Answer 31

375mRem/q

Question 32

occupational dose Quarterly level 2 eye

Answer 32

1125 mREM/q

Question 33

pregnant worker

Answer 33

fetus is non occupational worker so 5mSV or 500mREM

Question 34

dose when you must monitor

Answer 34

500mRem/year or 5mSV (baby badge)

Question 35

half -value layer in lead of Tech

Answer 35

0.03cm

Question 36

half -value layer in lead of 18F

Answer 36

0.4cm

Question 37

half -value layer in lead of 137 Cs

Answer 37

0.6cm

Question 38

deterministic

Answer 38

threshold for occurance

Question 39

stochastic

Answer 39

probability increases with DOSE

Question 40

receiving package

Answer 40

must be monitored within 3 hours or start of business

Question 41

Type 1 white warning

Answer 41

Surface exposure <0.5 mR/hr, no detection at 1 meter exposure, surface wipe test <6600 dpm/300cm2 (same as 2)

Question 42

type 2 yellow warning

Answer 42

Surface exposure <50 mR/hr, 1 meter exposure <1mR/hr, surface wipe test <6600 dpm/300cm2 (same as 1 )

Question 43

type 3 yellow for robidum

Answer 43

Surface exposure <200 mR/hr, 1 meter exposure <10mR/hr, surface wipe test <6600 dpm/300cm2 (same as 1 and II)

Question 44

Expected package limited quantity

Answer 44

< 11mCi of Tc99 and reading less than 0.5mR/hr and wipe test <6600dpm/300cm2

Question 45

Medical event must report to NRC

Answer 45

>5Rem or 0.05Sv to whole body OR >50Rem 0.5Sv to any individual organ

Question 46

Radioactive material

Answer 46

area where materials used or stored

Question 47

radiation area

Answer 47

if individual could exceed dose of >5mRem in an hour 30cm from source

Question 48

high radiation area

Answer 48

if dose exceeds >100mRem in an hour 30 cm from source or any surface where radiation penetrates