Rad Protection Ch 4

Front 1

Who is the father of Rad Protection?

Back 1

W.H. Rollins

Front 2

Who used fruit flies for testing?

Back 2

H.J. Muller

Front 3

Somatic Damage of early pioneers include:

Back 3

Radiodermatitis, Cancer, and Blood disorders

Front 4

What was used from 1900-1930 to measure radiation exposure due to redness of the skin?

Back 4

Erythema

Front 5

When was the First International Meeting with congress of radiology?

Back 5

1925

Front 6

When did the Second Meeting take place to where the ICRP accepted (R) as the unit of exposure?

Back 6

1928

Front 7

What does NCRP stand for and when was it discovered?

Back 7

National Council of Radiation Protection and Measurements 1964

Front 8

Dose of radiation below which an individual has a negligible chance of sustaining specific biological damage.

Back 8

Tolerance Level (Threshold dose)

Front 9

In 1936 ________ is recommended as a tolerance daily dose which is 87mrem!!!!

Back 9

0.1 R

Front 10

Random in Nature

Back 10

Stochastic

Front 11

Only in Stochastic effects you will have:

Back 11

Cancer and Genetic effects

Front 12

Deterministic is pre determined biological effects and can be found:

Back 12

Early and Late in life

Front 13

Nausea, Fatigue, Redness of skin, Loss of hair, Intestinal disorder, Shedding, and Blood disorders are all considered:

Back 13

Early Deterministic Effects

Front 14

Cataracts, Fibrosis, Organ atrophy, Loss Parenchyma, Reduced fertility and Sterility are all considered:

Back 14

Late Deterministic Effects

Front 15

Units for "Ionization in Air"

Back 15

Trad: (R)

SI: Coulombs

Front 16

Units for "Absorbed Dose"

Back 16

Trad: rad

SI: Gray

Front 17

Units for "Effective dose/Biological damage"

Back 17

Trad: rem

SI: Sievert

Front 18

Total electrical charge (all pluses or all minuses) per mass in dry air at standard temp:

Back 18

Exposure

Front 19

Kinetic energy released in a unit of mass of air. Another term for exposure in the air. Always read out in Gy.

Back 19

Air Kerma

Front 20

The sum total of air kerma over the exposed area of the pt's surface or a measure of the amount that has been thrust into a portion of the patients body surface.

Specified in units of mGy-cm2

Back 20

Dose Area Product

Front 21

Rad to Gy

Back 21

#of rad divided by 100

Front 22

The amount of energy transferred on average by incident radiation to an object per unit length of track through object which helps explain the need for a quality, or modifying factor.

Back 22

Linear Energy Transfer (LET)

^ LET = ^ radiation to the pt = ^ damage

Front 23

What is the equation for EqD?

Back 23

D x Wr

Front 24

What is the equation for EfD?

Back 24

D x Wr x Wt

Front 25

1 Sv = how many rems?

Back 25

100 rems

Front 26

Siverts multiplied by 1000 =

Back 26

Millisiverts

Front 27

Quantity used to describe radiation exposure of a population or group from low doses of different sources of ionizing radiation.

Back 27

Collective EfD measured in person-siverts (people x dose)