/ / /
/ I. / 1940. /

: 23 | : 337
.

The Official Report on the Development of the Atomic Bomb Under the Auspices of the United States Government.
i / . .

1.57. 1940. :

(1) , , , (Z=34) (Z=57).

(2) ; ?-, .

(3) .

(4) ( ).

(5) , () : U-235, U-238; U-235, () .

(6) U-238, U-239, , .

(7) , , 200 -.

(8) .

(9) , , .

(10) ; - .

(11) , ; , , , .

1.58. , -238 , ?-, Z=94 =239. - , . . , , , ?- . . :



Np Pu , , 0n1 , -1e0 () . -239, , . .


: 0.122. /Cache: 3 / 1