06x's wiki: Afstandskvadratloven

Afstandskvadratloven

P stråling; γ - kvant effekt
A; Aktiviteten
E; energi

(1)

$P \sub{straaling}=A \cdot E$

Strålingseffekt pr. areal…

(2)

$I \sub{straaling} = P / S = (A \cdot E) / S = (A \cdot E) / (4 \cdot pi \cdot r^2)$

S; overfladeareal for kugle
I; intensiteten

Dette bruges til at finde energien en bestemt længde væk fra energikilden, f.eks. hvad energien er en halv meter fra energikilden (kuglen).

Hver gang der er et gamma-henfald er der en foton. Antallet af fotoner er lig med antallet af henfald.

page_revision: 8, last_edited: 1191836418|%e %b %Y, %H:%M %Z (%O ago)

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