rad protetion exam 2

Question 1

somatic damage

Answer 1

biological damage

Question 2

radiodermatitis

Answer 2

inflamation to skin

Question 3

1st way to measure dose

Answer 3

SED

Question 4

amount of dose a person can be continually exposed to without harmful effects

Answer 4

tolerance dose

Question 5

dose of radiation below which an individual has a negligable change of biological damage

Answer 5

threshold dose

Question 6

MPD max permissable dose

Answer 6

5 Rem (age minus 18)

Question 7

RAD X Qualifying factor

Answer 7

dose equivalency

Question 8

average absorbed dose x weighting factor for tissue

Answer 8

effective dose equivalency

Question 9

takes into account the sensitivity of tissue

Answer 9

effective dose

Question 10

Wr

Answer 10

type of tissue

Question 11

roentgen ionization in air =

Answer 11

C/kg

Question 12

RAD =

Answer 12

Gray

Question 13

REM=

Answer 13

seivert

Question 14

REM stands for

Answer 14

calculation of potential effect of absorbed dose

Question 15

1 roentgen =

Answer 15

2.58 x 10^-4 C/kg

Question 16

only way to detect exposure

Answer 16

ionization chamber

Question 17

measures ionization in air

Answer 17

roentgen

Question 18

measures xray an gamma radiations

Answer 18

roentgen

Question 19

the amount of radiation a person is subjected to or exposed to

Answer 19

roentgen

Question 20

measures absorbed dose

Answer 20

RAD or gray

Question 21

the transfer of energy to tissue

Answer 21

absorbed dose

Question 22

then denser the object, the greater the

Answer 22

absorbtion

Question 23

dose equivalency is measured

Answer 23

sievert/ REM

Question 24

method to calculate the effect of absorbed dose for all types of ionizing radiation

Answer 24

sievert/REM Radiation Equivalent Man

Question 25

DE = (dose equivalency)

Answer 25

DE= RAD X Qualifying factor DE= gray x qualifying factor

Question 26

QUALIFYING FACTORS 1

Answer 26

xray, beta, gamma, high energy protons

Question 27

QUALIFYING FACTORS 2

Answer 27

low energy internal protons

Question 28

QUALIFYING FACTORS 5

Answer 28

thermal neutrons (slow)

Question 29

QUALIFYING FACTORS 20

Answer 29

alpha particles, fast neutrons, unkown energies

Question 30

electron displacement

Answer 30

xray

Question 31

short wavelength, high energy magnetic waves emitted by nuceli of radiactive substances (displacement of neutrons)

Answer 31

gamma

Question 32

high speed electron or positron (artificial reaction)

Answer 32

beta

Question 33

a positively charged particle ejected by certain radioactive elements consists of two pretons and two neutrons

Answer 33

alpha

Question 34

both ejected by nucleus (nucclear reactions)

Answer 34

protons and neutrons

Question 35

100 RAD =

Answer 35

1 GRAY

Question 36

100 rem =

Answer 36

1 sievert

Question 37

1 roentgen =

Answer 37

2.58 x 10^-4 C/kg OR 3.88 x 10^3 R

Question 38

the product of the average absorbed dose in a tissue or organ in human body

Answer 38

equivalent dose (Ht)

Question 39

wighting factor

Answer 39

Wr

Question 40

ED (equivalent dose ) =

Answer 40

ED= RAD x Wf OR Ht = D x Wr

Question 41

provides a measure of the overall risk of exposure to different tissues (tissue types)

Answer 41

effective dose (E)

Question 42

EFFECTIVE DOSE E=

Answer 42

D x Wr x Wt E= 5 gray x (xray) 1x .20 (gonads)= 1 sV

Question 43

Wt gonads

Answer 43

.20

Question 44

Wt: red bone marrow, colon, lung, stomach,

Answer 44

.12

Question 45

Wt: bladder, breast, liver, esophagus, thyroid, other

Answer 45

.05

Question 46

Wt: skin and bone surface

Answer 46

.01

Question 47

describes internal and external measurements of groups or populations from low doses of ionizing radiation

Answer 47

Collective Effective Dose (Sf)

Question 48

Sf problem: Unit= person x sievert

Answer 48

collective effective dose

Question 49

radiation dose quantity to monitor and control human exposure to ionizing radiation

Answer 49

TOTAL EFFECTIVE DOSE EQUIVALENT (TEDE)

Question 50

regulatory limit for TEDE is .05 Sv for occupational and .001 Sv for general pop

Answer 50

TEDE limits