, .
-
n
1
(Z) ,
zX, x -
.
, , , .
11, 12, 13.
.
:
1 R -10-13, 10-12
2 , .
3
4 ,
, , .
, . .
, .
:
1
2
3
:
1
ZXA-> z-2Ya-4+2a4
88Ra226-> 86Rn222+2He4
zXA->Z+1YA+-1β0+v̅
:
zXA->Z-1YA+-1β0+v
, .
1p1+-1β0->0n1+v
.
.
,
, . .
. , .
, .
.
( )
|
|
N=N0e-λt
N0 -
N - , t
λ , .
,
Ln2= λT
.
.
A= -dN/dt
A= λN=0,693N/T
:
A= λN0e- λT
- ()
1 , 1
()
1 3,7*1010
1 106
- .
.
.
, .
.
, .