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Nuclear data explorer · compound nucleus

64Ni

64Ni is formed when 63Ni + n fuse. Its levels just above each threshold are the resonances that set those reactions' rates.

Channels and what has been measured

Every EXFOR reaction that forms 64Ni: entrance pair (rows) and the quantities measured (columns), with the energies covered.

Every EXFOR reaction that forms ⁶⁴Ni: entrance pair (rows) and the quantities measured (columns), with the energies covered.
ReactionDatasetsσdσ/dΩωγMACSotherFitted in evaluation
63Ni(n,γ)64Ni14325 meV – 740 keV— (0)161 keV – 110 keV425 meV
2 more reactions: heavier projectiles, several outgoing particles or inclusive data
2 more reactions: heavier projectiles, several outgoing particles or inclusive data
ReactionDatasetsσdσ/dΩωγMACSotherFitted in evaluation
48Ca(16O,fus)2118 MeV – 31 MeV122 MeV— (0)— (0)— (0)
63Ni(n,0)2— (0)— (0)2— (0)— (0)

Level scheme

Adopted levels of 64Ni from ENSDF, with the particle thresholds and the Gamow window of the selected channel drawn across them.

Level scheme
8.240(1,2)9.6589.6580-,1-9.6590-,1-9.6649.6669.6669.6669.6669.6679.6699.6709.6719.6719.6739.6749.6759.6779.6779.6809.6879.6899.711Gamow window, T₉ = 0.3S(n) = 9.657 MeVE (MeV)
  • level in the window with a measured ωγ
  • level in the window with no ωγ in EXFOR
  • Jπ in parentheses or in italics is tentative.

Resonances in the window

Levels between the 63Ni(n,γ)64Ni threshold (S = 9657.4 keV) and the top of the Gamow window at T9 = 0.3 (58.2 keV above it), with the resonance strengths ωγ EXFOR holds for them.

Looking for measured strengths…

Resonances in the window
E (keV)E_r (keV, c.m.)JπT½ or Γωγ measured
9657.86 ± 0.20.4419––…
9658.05 ± 0.20.63190-,1-–…
9658.81 ± 0.21.3920-,1-–…
9664.17 ± 0.26.752––…
9665.97 ± 0.28.552––…
9666.31 ± 0.28.892––…
9666.36 ± 0.28.942––…
9666.48 ± 0.29.062––…
9667.09 ± 0.29.672––…
9669.36 ± 0.211.94––…
9670.03 ± 0.212.61––…
9671.23 ± 0.213.81––…
9671.33 ± 0.2113.91––…
9673.41 ± 0.215.99––…
9674.33 ± 0.216.91––…
9675.02 ± 0.2117.6––…
9676.72 ± 0.219.3––…
9676.83 ± 0.2119.41––…
9680.24 ± 0.2222.82––…
9686.86 ± 0.2229.44––…
9689.29 ± 0.231.87––…
9711.36 ± 0.253.94––…

A strength is matched to a level when its resonance energy plus the threshold lies within max(3 keV, 3σ) of the level energy.

Levels of 64Ni (148)
Levels of ⁶⁴Ni
E (keV)JπT½ or Γγ branches
00+––
1345.782+T½ = 1.09 ps→ 0 (100 %)
2276.582+–→ 1345.8 (99 %), → 0 (0.83 %)
24776+––
2610.044+T½ = 1.73 ps→ 1345.8 (100 %)
2867.40+T½ = 1.45 ps→ 1345.8 (100 %)
2972.11(1,2+)T½ = 130 fs→ 2276.6 (32 %), → 1345.8 (40 %), → 0 (28 %)
2982.94(3+)–→ 2276.6 (61 %), → 1345.8 (39 %)
3025.840+T½ = 3.6 ps→ 2276.6 (3.5 %), → 1345.8 (97 %)
3153.722+–→ 2276.6 (26 %), → 1345.8 (31 %), → 0 (43 %)
3165.814+T½ = 130 fs→ 1345.8 (100 %)
3275.992+T½ = 240 fs→ 1345.8 (21 %), → 0 (79 %)
3395.894+–→ 3165.8 (3.7 %), → 2982.9 (4.1 %), → 2610 (37 %), → 1345.8 (55 %)
3463.620+–→ 3153.7 (3.7 %), → 2972.1 (0.8 %), → 2276.6 (80 %), → 1345.8 (16 %)
3482(2+,3,4+)–→ 2610, → 1345.8
3559.93-–→ 2276.6 (22 %), → 1345.8 (78 %), → 0
3578.66(1+)–→ 1345.8 (77 %), → 0 (23 %)
3647.992+–→ 1345.8 (65 %), → 0 (35 %)
3748.992+T½ = > 500 fs→ 2276.6 (13 %), → 1345.8 (67 %), → 0 (20 %)
3749.294(-)–→ 3559.9 (62 %), → 3165.8 (22 %), → 2982.9 (4.7 %), → 2610 (11 %)
3798.72+–→ 1345.8
3808–––
3849.135-–→ 3749.3 (3.9 %), → 3559.9 (0.45 %), → 3395.9 (7.5 %), → 3165.8 (0.79 %), → 2610 (87 %), → 1345.8
3856.590+–→ 3578.7 (9.1 %), → 3153.7 (91 %)
3963(0+:4+)–→ 1345.8
40764+––
4085.075(-)–→ 3849.1 (26 %), → 3395.9 (6.4 %), → 2610 (67 %)
4137–––
4172.536(-)–→ 3849.1 (100 %)
4174(1,2)–→ 0
42164+–→ 2610
4244–––
4268.220+–→ 3578.7 (17 %), → 3153.7 (75 %), → 1345.8 (8.1 %)
4285–––
4346––→ 2610
4369–––
4397––→ 2276.6
4417.6(0+:4+)–→ 2276.6 (100 %)
4453––→ 2276.6
4477.1(6+)–→ 3165.8 (100 %)
44932+––
4521–––
4531.917-–→ 4172.5 (100 %)
4556.4(0+,1+,2+)–→ 1345.8 (100 %)
4573.162+–→ 2610, → 2276.6, → 1345.8 (67 %), → 0 (33 %)
4584–––
4615.57(1,2)–→ 2276.6 (43 %), → 0 (57 %)
4640.662+T½ = 25.9 fs→ 1345.8 (41 %), → 0 (59 %)
4670–––
4692–––
4704.120+–→ 2276.6 (39 %), → 1345.8 (61 %)
4711.99(6-)–→ 4085.1 (21 %), → 3849.1 (79 %)
47194+–→ 1345.8
4741–––
4759(1,2)–→ 1345.8, → 0
4800(1+:5+)––
4868.54(1,2)–→ 1345.8 (97 %), → 0 (3.3 %)
48892+––
4928––→ 1345.8
4962.2(6-,7-,8-)–→ 4531.9 (100 %)
4963(0+:4+)–→ 1345.8
49912+–→ 1345.8
5009–––
5027–––
5065–––
50934+–→ 4397, → 1345.8
5107–––
5123–––
5155.56(0+,1,2,3-)–→ 2276.6 (45 %), → 1345.8 (55 %)
5169–––
5188–––
52154+–→ 2276.6, → 1345.8
5229–––
5264–––
5285(2+,3,4+)–→ 2610, → 1345.8
5332–––
5355–––
53693-––
5383(0+:4+)–→ 2276.6, → 1345.8
54082+––
5418.21(1)-–→ 1345.8 (51 %), → 0 (49 %)
5439(5-)––
5484(3-)–→ 2276.6, → 1345.8
5507–––
5536–––
5567–––
5614(2+)––
5663(1+:5+)––
57344+––
5735.8(7-)–→ 4531.9 (56 %), → 4172.5 (44 %)
57590-:4-––
5768.750+–→ 2276.6 (45 %), → 1345.8 (55 %)
58128+–→ 4531.9 (100 %)
58173-––
5843–––
5870–––
5902(1-,2-)––
5976(1+:5+)––
60183-––
6040(6+)––
60601-,2-––
61163-––
6182–––
6188.79(-)–→ 4531.9 (100 %)
6220–––
6444(1,2)+–→ 0
65121-,2-––
6622–––
6656–––
66871-,2-––
6754–––
6796(10+)–→ 5812 (100 %)
6822–––
6838–––
6861–––
7020(1,2)–→ 0
7130–––
7220(1,2)–→ 0
73000-,1-,2-,3-,4-––
7730(1,2)–→ 0
79500-,1-,2-,3-,4-––
8240(1,2)–→ 0
9657.86–––
9658.050-,1-––
9658.810-,1-––
9664.17–––
9665.97–––
9666.31–––
9666.36–––
9666.48–––
9667.09–––
9669.36–––
9670.03–––
9671.23–––
9671.33–––
9673.41–––
9674.33–––
9675.02–––
9676.72–––
9676.83–––
9680.24–––
9686.86–––
9689.29–––
9711.36–––
13200–Γ = 4.8 MeV–
15400–Γ = 4.2 MeV–
15600–Γ = 5.64 MeV–
16400–Γ = 6.8 MeV–