 | Spontaneous fission (SF) is a form of radioactive decay in which a heavy atomic nucleus splits into two or more lighter nuclei. In contrast to induced... 18 KB (1,955 words) - 17:16, 10 April 2024 |
 | 30 Nuclear fission can occur without neutron bombardment as a type of radioactive decay. This type of fission is called spontaneous fission, and was first... 74 KB (9,613 words) - 19:52, 23 April 2024 |
 | Plutonium (section Nuclear fission) weapons and nuclear reactors. Plutonium-240 exhibits a high rate of spontaneous fission, raising the neutron flux of any sample containing it. The presence... 141 KB (15,146 words) - 18:21, 23 April 2024 |
 | Uranium (section Fission research) for spontaneous fission or even induced fission with fast neutrons; uranium-235, and to a lesser degree uranium-233, have a much higher fission cross-section... 110 KB (12,403 words) - 09:40, 16 April 2024 |
| Neutron emission (section Spontaneous fission) isotope of the same element. Neutrons are also produced in the spontaneous and induced fission of certain heavy nuclides. As a consequence of the Pauli exclusion... 7 KB (871 words) - 22:07, 1 December 2023 |
decay and spontaneous fission. Almost all alpha emitters have over 210 nucleons, and the lightest nuclide primarily undergoing spontaneous fission has 238... 46 KB (8,212 words) - 19:06, 25 April 2024 |
 | identical nuclei fissioning. As the atomic number increases, spontaneous fission rapidly becomes more important: spontaneous fission partial half-lives... 90 KB (13,568 words) - 21:10, 24 April 2024 |
 | in microseconds, it then seemed that instability with respect to spontaneous fission would limit the existence of heavier elements. In 1939, an upper... 90 KB (8,795 words) - 03:23, 23 March 2024 |
| neutrons for deformed nuclei, which gives it greater stability against spontaneous fission. Hassium is a superheavy element; it has been produced in a laboratory... 96 KB (13,919 words) - 06:28, 15 April 2024 |
Unbibium (section Compound nucleus fission) decay and spontaneous fission. Almost all alpha emitters have over 210 nucleons, and the lightest nuclide primarily undergoing spontaneous fission has 238... 37 KB (7,056 words) - 03:50, 4 March 2024 |
 | Nuclear weapon design (redirect from Pure fission) one to two million times that of spontaneous fission, so weapon engineers are careful to use fuel of high purity. Fission weapons used in the vicinity of... 122 KB (15,994 words) - 10:23, 25 April 2024 |
 | Technetium (section Fission waste product) produced as a synthetic element. Naturally occurring technetium is a spontaneous fission product in uranium ore and thorium ore (the most common source),... 68 KB (7,696 words) - 12:49, 29 April 2024 |
decay and spontaneous fission. Almost all alpha emitters have over 210 nucleons, and the lightest nuclide primarily undergoing spontaneous fission has 238... 51 KB (8,999 words) - 18:28, 4 May 2024 |
 | decay and spontaneous fission. Almost all alpha emitters have over 210 nucleons, and the lightest nuclide primarily undergoing spontaneous fission has 238... 63 KB (10,424 words) - 02:45, 5 May 2024 |
identical nuclei fissioning. As the atomic number increases, spontaneous fission rapidly becomes more important: spontaneous fission partial half-lives... 73 KB (11,997 words) - 23:10, 8 April 2024 |
 | Neutron source (section Spontaneous fission (SF)) Some isotopes undergo SF with emission of neutrons. The most common spontaneous fission source is the isotope californium-252. 252Cf and all other SF neutron... 9 KB (1,149 words) - 20:04, 9 February 2024 |
 | Project Y (section Nuclear fission and atomic bombs) gun-type fission weapon using plutonium called Thin Man. In April 1944, the Los Alamos Laboratory determined that the rate of spontaneous fission in plutonium... 129 KB (16,870 words) - 17:23, 4 April 2024 |
 | also has a reasonably low rate of neutron emission due to spontaneous fission (10 fission/s·kg), making it feasible to assemble a mass that is highly... 19 KB (2,092 words) - 22:07, 29 April 2024 |
 | decay and spontaneous fission. Almost all alpha emitters have over 210 nucleons, and the lightest nuclide primarily undergoing spontaneous fission has 238... 49 KB (9,158 words) - 04:40, 22 December 2023 |
| decay and spontaneous fission. Almost all alpha emitters have over 210 nucleons, and the lightest nuclide primarily undergoing spontaneous fission has 238... 39 KB (7,674 words) - 17:05, 28 April 2024 |
| decay and spontaneous fission. Almost all alpha emitters have over 210 nucleons, and the lightest nuclide primarily undergoing spontaneous fission has 238... 47 KB (7,764 words) - 01:13, 19 February 2024 |
| identical nuclei fissioning. As the atomic number increases, spontaneous fission rapidly becomes more important: spontaneous fission partial half-lives... 28 KB (6,572 words) - 02:57, 15 April 2024 |
 | Critical mass (category Nuclear fission) material that self-sustains a fission chain reaction. In this case, called criticality, k = 1. A steady rate of spontaneous fission causes a proportionally... 19 KB (2,937 words) - 19:27, 15 April 2024 |
| identical nuclei fissioning. As the atomic number increases, spontaneous fission rapidly becomes more important: spontaneous fission partial half-lives... 39 KB (8,152 words) - 01:12, 8 May 2024 |
| identical nuclei fissioning. As the atomic number increases, spontaneous fission rapidly becomes more important: spontaneous fission partial half-lives... 30 KB (6,778 words) - 07:18, 2 April 2024 |
| decay and spontaneous fission. Almost all alpha emitters have over 210 nucleons, and the lightest nuclide primarily undergoing spontaneous fission has 238... 42 KB (8,085 words) - 03:58, 23 April 2024 |
identical nuclei fissioning. As the atomic number increases, spontaneous fission rapidly becomes more important: spontaneous fission partial half-lives... 66 KB (10,742 words) - 04:08, 26 April 2024 |
| occur when atoms react with natural neutrons (from cosmic rays, spontaneous fission, or other sources), or are bombarded directly with cosmic rays. The... 18 KB (1,698 words) - 11:52, 10 April 2024 |
| identical nuclei fissioning. As the atomic number increases, spontaneous fission rapidly becomes more important: spontaneous fission partial half-lives... 38 KB (7,300 words) - 06:26, 5 May 2024 |
| decay and spontaneous fission. Almost all alpha emitters have over 210 nucleons, and the lightest nuclide primarily undergoing spontaneous fission has 238... 48 KB (8,310 words) - 14:11, 14 April 2024 |