Dose 2016

5.2

 

 

∫

ur

( ) = Φ Ω Ω ⋅

Ω

( , ) d da h x y d

dL

The integral

Ω

4

π

dV da )y,x(h = ⋅

can be further modified, knowing, that

 

 

∫

ur

( ) = Φ Ω Ω ⋅

Ω

dL

d d V d

Ω

4 π

( ) d d   Φ Ω Ω Ω = Φ   ∫ ur Ω

Since

4

π

dL

dL

dV = Φ ⋅

Φ =

we obtain

or

dV

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