C. Biological effects of radiation

Question 1

The unit to describe the amount of energy that has been absorbed in a certain amount of matter is called

Answer 1

absorbed dose

Question 2

What is the SI unit for absorbed dose

Answer 2

Gray (Gy)

Question 3

The traditional unit for absorbed dose is

Answer 3

Rad

Question 4

1 Gy = _____ cgy

Answer 4

100 cGy

Question 5

1 GY = 100 cgy = ____ Rad

Answer 5

100

Question 6

___ RAD = ____ Joule/ kg = ____ erg/g

Answer 6

1 rad .01 Joule/kg

100 erg/g

Question 7

1 SV = ___ rads

Answer 7

100 rads

Question 8

1 SV = 100 rads = __ Gy

Answer 8

1 Gy

Question 9

1 rem = ____ rad

Answer 9

1 rad

Question 10

________ is a unit that expresses the amount of radiation that is absorbed by a person , while factoring in the biological effects of the different types of radiation

Answer 10

dose equivalent

Question 11

High- LET radiation are more _______ than Low- LET radiation that give the same dose

Answer 11

damaging

Question 12

Sievert equation is

Answer 12

Sievert = absorbed dose( in Gy) X quality factor

Question 13

The SI unit for dose equivalent is

Answer 13

Sievert (SV)

Question 14

Traditional unit for dose equivalent is

Answer 14

REM

Question 15

1 SV = ____ rem

Answer 15

100 rem

Question 16

______ measures the total number of ionizations produced by photons in a unit mass of air

Answer 16

exposure ( roentgen)

Question 17

SI unit for exposure is

Answer 17

c/Kg

Question 18

1 Roentgen = _____ Coulomb of charge per Kilogram of air

Answer 18

2.58 x 10 ^-4

Question 19

_____ is only measured in photons and at energies lower than 3 MEV

Answer 19

roentgen

Question 20

_______ measures the difference of response to radiation for different organs and tissues within the body

Answer 20

effective dose

Question 21

Effective dose accounts for radiation sensitivities of different

Answer 21

organs and tissues

Question 22

Effective dose equations use weighting factors based on

Answer 22

relative risk to developing cancer

Question 23

What is the Tissue weighting factor for BLADDER, BREAST, LIVER , ESOPHAGUS , THYROID

Answer 23

0.05

Question 23

What is the Tissue weighting factor for BONE SURFACE AND SKIN

Answer 23

0.01

Question 24

What is the Tissue weighting factor for BONE MARROW , colon, lung, stomachone marrow

Answer 24

.12

Question 25

What is the Tissue weighting factor for Gonads

Answer 25

.20

Question 26

____ = kinetic energy released in the medium per unit mass at a specific point

Answer 26

KERMA (K)

Question 28

____ describes a quantity for indirectly ionizing radiation

Answer 28

Air kerma

Question 29

Air kerma is not a measure of biological damage because it is unable to show the

Answer 29

energy absorbed locally

Question 30

Air kerma SI unit is the

Answer 30

Gray (Gy)