Атомные ядра. Основные характеристики. Варламов В.В - 316 стр.

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XX-A-m N JP
Масса
ядра,
MэВ
E
св
,
MэВ
ε,
MэВ
B
n
,
MэВ
B
p
,
MэВ
T
1/2
, Г,
распр-ть
Моды распада
316
Cm-247 151 9/2- 230095.50 1853.0 7.5 5.2 6.8
1.56E+7 л
α 100%
Cm-248 152 0+ 231028.85 1859.2 7.5 6.2 7.0
3.48E+5 л
α 91.61%,
SF 8.39%
Cm-249 153 1/2(+) 231963.70 1863.9 7.5 4.7 7.1 64.15 м β- 100%
Cm-250 154 0+ 232897.43 1869.8 7.5 5.8 7.4 8.3E+3 л
SF 74%,
α 18%,
β- 8%
Cm-251 155 (1/2+) 233832.59 1874.2 7.5 4.4 16.8 м β- 100%
Cm-252 156 0+ 234766.53 1879.8 7.5 5.6 2 дн <
Z = 97 берклий
Bk-234 137 1.4E2 с
α 80%,
e 20%
Bk-235 138 218904.22 1768.2 7.5 1.3 20 с
α?,
e?
Bk-237 140 220767.61 1783.9 7.5 2.1 1 м
e?,
α?
Bk-238 141 221700.31 1790.8 7.5 6.9 2.3 144 с
e 100%,
eSF 0.048%
Bk-240 143 223564.66 1805.6 7.5 2.8 4.8 м
eSF 2.0E-3%,
e
Bk-241 144 (7/2+) 224496.59 1813.2 7.5 7.6 2.9 4.6 м
α,
e
Bk-242 145 225429.72 1819.7 7.5 6.4 3.3 7.0 м e 100%
Bk-243 146 (3/2-) 226362.17 1826.8 7.5 7.1 3.4 4.5 ч
e 99.85%,
α 0.15%
Bk-244 147 (4-) 227295.68 1832.8 7.5 6.0 3.8 4.35 ч
α 6.0E-3%,
e 99.99%
Bk-244-m
147 227295.68 1832.8 7.5 820 нс
SF 100%
Bk-245 148 3/2- 228228.28 1839.8 7.5 7.0 3.9 4.94 дн
e 99.88%,
α 0.12%
                       Масса
                                Eсв,      ε, Bn, Bp ,        T1/2, Г,
XX-A-m   N     JP      ядра,                                            Моды распада
                                MэВ      MэВ MэВ MэВ        распр-ть
                       MэВ

Cm-247   151   9/2-   230095.50 1853.0    7.5   5.2   6.8 1.56E+7 л       α 100%

                                                                         α 91.61%,
Cm-248   152   0+     231028.85 1859.2    7.5   6.2   7.0 3.48E+5 л
                                                                         SF 8.39%

Cm-249   153 1/2(+)   231963.70 1863.9    7.5   4.7   7.1   64.15 м       β- 100%

                                                                         SF ≈74%,
Cm-250   154   0+     232897.43 1869.8    7.5   5.8   7.4 8.3E+3 л ≈      α ≈18%,
                                                                          β- ≈8%

Cm-251   155 (1/2+)   233832.59 1874.2    7.5   4.4         16.8 м        β- 100%

Cm-252   156   0+     234766.53 1879.8    7.5   5.6          2 дн <

                               Z = 97    берклий
                                                                          α ≥80%,
Bk-234   137                                                1.4E2 с
                                                                          e ≤20%
                                                                            α?,
Bk-235   138          218904.22 1768.2    7.5         1.3    20 с ≈
                                                                            e?
                                                                            e?,
Bk-237   140          220767.61 1783.9    7.5         2.1    1м≈
                                                                            α?
                                                                          e 100%,
Bk-238   141          221700.31 1790.8    7.5   6.9   2.3    144 с
                                                                        eSF 0.048%
                                                                        eSF 2.0E-3%,
Bk-240   143          223564.66 1805.6    7.5         2.8    4.8 м
                                                                              e
                                                                             α,
Bk-241   144 (7/2+)   224496.59 1813.2    7.5   7.6   2.9    4.6 м
                                                                             e

Bk-242   145          225429.72 1819.7    7.5   6.4   3.3    7.0 м        e ≤100%

                                                                         e ≈99.85%,
Bk-243   146 (3/2-)   226362.17 1826.8    7.5   7.1   3.4    4.5 ч
                                                                          α ≈0.15%
                                                                         α 6.0E-3%,
Bk-244   147   (4-)   227295.68 1832.8    7.5   6.0   3.8    4.35 ч
                                                                          e 99.99%

Bk-244-m 147          227295.68 1832.8    7.5               820 нс       SF ≤100%

                                                                         e 99.88%,
Bk-245   148   3/2-   228228.28 1839.8    7.5   7.0   3.9   4.94 дн
                                                                          α 0.12%




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