39-Y-91
- Atomic Mass: 90.9073034 ± 0.0000030 amu
- Excess Mass: -86346.300 ± 2.805 keV
- Binding Energy: 790324.893 ± 2.808 keV
- Beta Decay Energy: B- 1544.833 ± 1.834 keV
- Spin: 1/2-
- Half life: 58.51 D ( 0.1025 % )
- Mode of decay: Beta to Zr-91
Meta state at 0.556 Mev
- Spin: 9/2+
- Half life: 49.71 M ( 0.0805 % )
- Mode of decay: Beta to Zr-91
- Branch ratio: < 1.50
- Decay energy: 2.100 MeV
- Mode of decay: IT
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-
Possible parent nuclides:
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Beta from Sr-91
Fission Yields
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Fissile with Neutron Energy
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Yields ( sum = 2 )
|
|
Direct
|
Accumulated
|
|
U-235 with 0.0253 eV
|
1.83448E-06
|
5.91870E-02
|
|
U-235 with 1.0 MeV
|
6.66620E-07
|
5.65487E-02
|
|
U-238 with 1.0 MeV
|
2.01317E-08
|
4.04542E-02
|
|
Pu-239 with 0.0253 eV
|
3.47371E-06
|
2.50213E-02
|
|
Pu-239 with 1.0 MeV
|
2.21926E-06
|
2.43397E-02
|
Fission Yields to Meta State
|
Fissile with Neutron Energy
|
Yields ( sum = 2 )
|
|
Direct
|
Accumulated
|
|
U-235 with 0.0253 eV
|
7.93333E-06
|
3.37982E-02
|
|
U-235 with 1.0 MeV
|
3.31159E-06
|
3.22904E-02
|
|
U-238 with 1.0 MeV
|
1.00009E-07
|
2.30994E-02
|
|
Pu-239 with 0.0253 eV
|
1.50223E-05
|
1.42916E-02
|
|
Pu-239 with 1.0 MeV
|
1.10247E-05
|
1.39014E-02
|
Total Cross Section
- at 0.0253 eV = 7.100 b
- Maxwell avg. at 0.0253 eV = 6.970 b
- at 14 MeV = 4.337 b
- Fission spectrum avg. = 5.662 b
- g-factor = 1.1077
Elastic Scattering Cross Section
- at 0.0253 eV = 5.700 b
- Maxwell avg. at 0.0253 eV = 5.700 b
- at 14 MeV = 2.835 b
- Fission spectrum avg. = 4.567 b
- g-factor = 1.1284
Total Inelastic Cross Section
- at 14 MeV = 220.7 mb
- Fission spectrum avg. = 1.078 b
(n,2n) Cross Section
- at 14 MeV = 1.264 b
- Fission spectrum avg. = 2.763 mb
(n,3n) Cross Section
- Fission spectrum avg. = 2.208 micro barn
(n,na) Cross Section
- at 14 MeV = 408.9 micro barn
- Fission spectrum avg. = 0.1028 micro barn
(n,np) Cross Section
- at 14 MeV = 2.226 mb
- Fission spectrum avg. = 0.4380 micro barn
(n,nd) Cross Section
- Fission spectrum avg. = 0.002022 micro barn
(n,nt) Cross Section
- Fission spectrum avg. = 5.047500e-10 b
Radiative Capture Cross Section
- at 0.0253 eV = 1.400 b
- Maxwell avg. at 0.0253 eV = 1.241 b
- Resonance integral = 2.840 b
- at 14 MeV = 1.006 mb
- Fission spectrum avg. = 12.24 mb
- g-factor = 1.0005
(n,p) Cross Section
- at 14 MeV = 9.747 mb
- Fission spectrum avg. = 10.44 micro barn
(n,d) Cross Section
- at 14 MeV = 1.096 mb
- Fission spectrum avg. = 0.2435 micro barn
(n,t) Cross Section
- at 14 MeV = 160.2 micro barn
- Fission spectrum avg. = 0.04983 micro barn
(n,alpha) Cross Section
- at 14 MeV = 2.984 mb
- Fission spectrum avg. = 3.300 micro barn
Element Y