Radiologic Units

Question 1

Amount of radiation delivered to a point

Answer 1

Exposure

Question 2

How much the ionization the beam causes in air

Answer 2

Exposure

Question 3

Conventional unit of exposure

Answer 3

roentgen (R)

Question 4

SI unit for exposure

Answer 4

C/kg

Question 5

roentgen is in honor of ______

Answer 5

Wilhelm Conrad Roentgen

Question 6

definition of roentgen

Answer 6

Quantity of X- or gamma rays …

Question 7

Standard temperature

Answer 7

Zero degrees Celsius
32 degrees Fahrenheit
273.15 Kelvin

Question 8

Standard Pressure

Answer 8

1 atm

Question 9

1R = _____ C/kg

Answer 9

2.58 x 10E-4 C/kg

Question 10

1C/kg = _____ R

Answer 10

3876 R

Question 11

Unit of electrical charge

Answer 11

Coulomb

Question 12

1C = _____ ionizations

Answer 12

6.242 x 10E18 ionizations

Question 13

Concentration of radiation energy absorbed at a specific point within the body tissue

Answer 13

Absorbed dose

Question 14

Quantity of radiation energy absorbed per unit mass of tissue

Answer 14

Absorbed Dose

Question 15

Conventional unit of absorbed dose

Answer 15

rad

Question 16

1 rad = ____ ergs/g

Answer 16

100 ergs/g

Question 17

SI unit of absorbed dose

Answer 17

gray (Gy)

Question 18

1Gy = ____ J/kg

Answer 18

1 J/kg

Question 19

1 rad = ____ Gy

Answer 19

0.01 Gy

Question 20

Gy is named after _____

Answer 20

Louis Harold Gray

Question 21

Pioneer in the field of measurement of radium radiation ….

Answer 21

Louis Harold Gray

Question 22

Nationality of Louis Harold Gray

Answer 22

British

Question 23

Biological impact of radiation on persons ….

Answer 23

Dose Equivalent

Question 24

Personnel exposure is recorded as ____

Answer 24

Dose equivalent

Question 25

Conventional unit of DE

Answer 25

rem

Question 26

SI unit of DE

Answer 26

sievert (Sv)

Question 27

Sievert is named after ____

Answer 27

Rolf Maximilian Sievert

Question 28

Nationality of Rolf Maximilian Sievert

Answer 28

Swedish

Question 29

Work on radiation dosage measurement and ....

Answer 29

Rolf Maximilian Sievert

Question 30

More biologically damaging to live tissue

Answer 30

Alpha particle

Question 31

Formerly known as quality factor

Answer 31

Radiation weighing factor

Question 32

Relative risk to humans

Answer 32

Effective dose

Question 33

Formula of effective dose

Answer 33

ED = AD x Wt

Question 34

Multiplier used to determine the effective dose from the equivalent dose in one or more organs or tissues

Answer 34

Tissue Weighing Factor

Question 35

Number of atoms that disintegrate per second

Answer 35

Activity

Question 36

Modern form of metric system

Answer 36

International System of units