RADIATION PROTECTION

I1 ( D2)squared

I2 ( D1) squared

Genetic Cell Damage

Damage to the cell’s genetic code

Genetic cells multiply by meiosis

Somatic Cell Damage

Damage to the cell itself

Divides by mitosis

metaphase most sensitive to radiation

Page 160, Appleton and Lange #58

Film Badge

Pocket ionization chamber

Ion chamber

TLD

lithium fluoride

phosphors are heated=quantity of light=quantity of exposure

Radiolysis

Indirect hit

water

ionizes water-produces free radical-hydrogen peroxide

Radiosensitive

Oogonia-stem cells in ovaries

multiply in fetus

testes stem cells-spermotgonia

continually renew

pg 132 -Dowd

Radiosensitive cells in fetus

Fetal stages

I: conception -10 days ovum dividing

II: sixth week after conception -cells differentiate into organs

III: main period of growth (after 6th week)

Except for CNS-undifferentiated

Misc. terms

Protraction

Fractionation

Use factor

stochastic effect

nonstochastic (deterministic)