The amount of any particular isotope produced per fission is called its yield, typically expressed as percent per parent fission; therefore, yields total to just over 200 % ( because of ternary fissions ), not 100 %.
12.
:: : : : In the first paragraph on the nuclear fission article, " Most fissions are binary fissions, but occasionally ( 2 to 4 times per 1000 events ), three positively charged fragments are produced in a ternary fission.
13.
The energy of the third much-smaller product usually ranges between 10 and 20 MeV . In keeping with their origin, alpha particles produced by ternary fission typically have mean energies of about ~ 16 MeV ( energies this great are never seen in alpha decay ).
14.
Although particles as large as argon nuclei may be produced as the smaller ( third ) charged product in the usual ternary fission, the " most common " small fragments from ternary fission are helium-4 nuclei, which make up about 90 % of the small fragment products.
15.
Although particles as large as argon nuclei may be produced as the smaller ( third ) charged product in the usual ternary fission, the " most common " small fragments from ternary fission are helium-4 nuclei, which make up about 90 % of the small fragment products.
16.
The second-most common particles produced in ternary fission are tritons ( the nuclei of tritium ), which make up 7 % of the total small fragments, and the third-most are helium-6 nuclei ( which decay in about 0.8 seconds to lithium-6 ).
17.
This is a different process than the more random nuclear disintegration that precedes light fragment emission in ternary fission, which may be a result of a nuclear reaction, but can also be a type of spontaneous radioactive decay in certain nuclides, demonstrating that input energy is not necessarily needed for fission, which remains a fundamentally different process mechanistically.
18.
In anywhere from 2 to 4 fissions per 1000 in a nuclear reactor, a process called ternary fission produces three positively charged fragments ( plus neutrons ) and the smallest of these may range from so small a charge and mass as a proton ( Z = 1 ), to as large a fragment as argon ( Z = 18 ).
