Page 68 - Radiation Safety

BASIC FORMULA(S)

I = I .e - µx (I = I .e - 0.693x/HVL )
x o x o

A = A .e - t (A = A .e - 0.693t/T 1/2)

o
t
x
o
Other formulae

1. HVL = 0.693/

2. n = x / HVL or n = x / TVL

n
3. I / I = 2 or I / I = 10 n
o
n
o
n
4. Dose = Dose-rate x Time

5. I /I = (d /d ) 2
1 2
1
2