15N

Thermal Neutron Capture Evaluated Data



Measurements
1967RA24: 14N(n, γ), E = thermal; measured Eγ; deduced Q.
1968GRZY: 14N(n, γ), E = thermal; measured Eγ; deduced Q.
1969WE07: 14N(n, γ), E = thermal; measured Eγ, Doppler shift attenuation. 15N levels deduced T1/2.
1971BE34: 14N(n, γ), E = thermal; measured Eγ, Iγ; deduced Q. 15N deduced transitions.
1972LO26: 14N(n, γ), E = thermal; measured Eγ, Iγ.
1974IS06: 14N(n, γ), E = thermal; measured Eγ. 15N deduced transitions, neutron binding energy.
1974SP04: 14N(n, γ); measured Eγ; deduced Q.
1974TH06: 14N(n, γ); measured Eγ, Iγ. 15N deduced transitions.
1975SM02: 14N(n, γ); measured atomic mass.
1978GRZM: 14N(n, γ), E = thermal; measured Eγ, γ-energy differences for known cascade-crossover transitions; deduced new energy calibration standards.
1980GR12: 14N(n, γ), E = thermal; measured Eγ.
1980IS02: 14N(n, γ), E = thermal; measured Eγ, Iγ.
1981IS07: 14N(n, γ), E = thermal; measured Eγ, Iγ; deduced σ.
1990IS05: 14N(n, γ), E = thermal; measured Eγ, Iγ; deduced capture σ.
1994RA17: 14N(n, γ), E = thermal; measured Eγ, Iγ, DSA; deduced 15N mirror symmetry features. 15N levels deduced T1/2.
1997JU02: 14N(n, γ), E = thermal; measured Eγ, Iγ; deduced capture σ(E). 15N deduced resonances, width parameters.
1997RO26: 14N(n, γ), E = thermal; measured Eγ, Iγ, and neutron-induced γ spectra; deduced mass differences.
1999ZHZM: 14N(n, γ), E = thermal; compiled, evaluated prompt γ-ray data.
2000ZHZP: 14N(n, γ), E = thermal; compiled, analyzed prompt Eγ, Iγ.
2002RE13: 14N(n, γ), E = thermal; compiled, analyzed prompt Eγ, Iγ.
2003CHZX: 14N(n, γ); measured Eγ, Iγ; deduced prompt k0-factors, partial σ.
2003MOZU: 14N(n, γ), E not given; compiled, analyzed capture σ, neutron binding energies.
2004EGZZ: 14N(n, γ), E = thermal; measured Eγ, Iγ; deduced σ.
2004MA76: 14N(n, γ), E = thermal; analyzed data; deduced k0 factors, γ-emission probabilities.
2005EG01: 14N(n, γ), E = thermal; measured Eγ, Iγ, capture σ.
2005SAZU: 14N(n, γ), E = thermal; measured Eγ, Iγ, deduced capture σ. Pair spectrometer, spectrum unfolding procedure.
2006BE33: 14N(n, γ), E = thermal; measured Eγ, Iγ, γγ-coin.
2006BEZY: 14N(n, γ), E = thermal; measured Eγ, Iγ.
2008FIZZ: 14N(n, γ), E = thermal; measured cross sections; deduced cross section balance.
2008MI11: 14N(n, γ), E = thermal; measured Eγ, Iγ, γγ-coin. 15N deduced absolute Iγ by intensity balance of each level.
2011SL01: 14N(n, γ), E = thermal; compiled, evaluated σ, σ(Eγ), γ decay schemes, levels, J, π using ENDF, DICEBOX.
2013SH04: 14N(n, γ), E = thermal; measured reaction products, Eγ, Iγ; deduced prompt gamma ray intensities, relative intensities. Comparison with available data.
2016FI06: 14N(n, γ), E = thermal; measured Eγ, Iγ, σγ; 15N deduced levels, J, π, absolute transition probabilities, γ-ray cross sections.
Measured total cross section for 14N(n, γ)15N

Recommended value: 79.0 ± 0.9 mb (EGAF)
Measured values: 79.0 ± 0.9 mb (EGAF)
79.8 ± 1.4 mb (2003MUZZ, 1990IS05, 1988MCZT)
77.2 ± 2.1 mb (1981IS07, 1981MUZQ)
   75 ± 7.5 mb (1973MU14, 1964ST25)
  80 ± 20 mb (1957BA18)

Recommended Values

taken from the Evaluated Gamma-ray Activation File (EGAF) evaluation

 

Eγ (keV) Ei (keV) Ef (keV) σγ Iγ a
5269.159 ± 0.013 5270.153 0 (2.36 ± 0.03) x 10 -2 29.90 ± 0.51  
5297.821 ± 0.015 5298.826 0 (1.675 ± 0.023) x 10 -2     21.20 ± 0.38  
1024.995 ± 0.017 6323.859 5298.826 (1.26 ± 0.24) x 10 -5 0.0159 ± 0.0030
1053.666 ± 0.016 5270.153     (1.2 ± 0.3) x 10 -5 0.0152 ± 0.0038
6322.428 ± 0.012 0 (1.449 ± 0.022) x 10 -2     18.30 ± 0.35  
  831.218 ± 0.017 7155.101 6323.859     (3.7 ± 0.6) x 10 -5 0.0468 ± 0.0076
1884.821 ± 0.016 5270.153 (1.468 ± 0.018) x 10 -2     18.60 ± 0.31  
7153.270 ± 0.016 0     (5.0 ± 0.6) x 10 -5 0.0633 ± 0.0076
  976.996 ± 0.018 7300.889 6323.859     (2.8 ± 0.9) x 10 -5 0.0354 ± 0.0114
2001.920 ± 0.019 5298.826     (1.9 ± 0.4) x 10 -4 0.241 ± 0.051
2030.589 ± 0.019 5270.153     (5.8 ± 0.7) x 10 -5 0.0734 ± 0.0089
7298.983 ± 0.017 0 (7.46 ± 0.12) x 10 -3 9.44 ± 0.19
2293.18 ± 0.15 7563.52   5270.153     (3.6 ± 0.4) x 10 -5 0.0456 ± 0.0051
1011.706 ± 0.020 8312.632 7300.889 (1.08 ± 0.04) x 10 -4 0.137 ± 0.005
1988.632 ± 0.020 6323.859 (2.89 ± 0.16) x 10 -4 0.366 ± 0.021
3013.482 ± 0.021 5298.826     (5.7 ± 0.5) x 10 -4 0.722 ± 0.064
8310.161 ± 0.019 0 (3.30 ± 0.06) x 10 -3 4.18 ± 0.09
2247.30 ± 0.04 8571.34   6323.859     (1.2 ± 0.3) x 10 -5 0.0152 ± 0.0038
3300.79 ± 0.04 5270.15   (1.16 ± 0.08) x 10 -4 0.147 ± 0.010
8568.71 ± 0.04 0     (5.4 ± 0.5) x 10 -5 0.0684 ± 0.0064
2725.47 ± 0.06 9049.59   6323.859     (1.6 ± 0.4) x 10 -5 0.0203 ± 0.0051
9046.66 ± 0.06 0 (1.59 ± 0.18) x 10 -4 0.201 ± 0.023
3881.29 ± 0.05 9151.98   5270.153     (6.3 ± 1.3) x 10 -5 0.0797 ± 0.0165
9148.98 ± 0.05 0 (1.29 ± 0.06) x 10 -3 1.63 ± 0.08
  583.59 ± 0.03 9154.934 8571.34   (4.29 ± 0.14) x 10 -4 0.543 ± 0.019
1853.922 ± 0.019 7300.889 (5.08 ± 0.10) x 10 -4 0.643 ± 0.015
1999.690 ± 0.016 7155.101 (3.23 ± 0.04) x 10 -3 4.09 ± 0.07
2830.789 ± 0.017 6323.859 (6.26 ± 0.16) x 10 -4 0.792 ± 0.022
3855.577 ± 0.019 5298.826 (4.36 ± 0.13) x 10 -4 0.552 ± 0.018
3884.242 ± 0.018 5270.153     (5.7 ± 0.5) x 10 -4 0.722 ± 0.064
9151.937 ± 0.017 0     (1.2 ± 0.3) x 10 -4 0.152 ± 0.038
2898.31 ± 0.11 9222.47   6323.859     (1.7 ± 0.4) x 10 -5 0.0215 ± 0.0051
3923.10 ± 0.11 5298.826     (2.9 ± 0.7) x 10 -5 0.0367 ± 0.0089
9219.43 ± 0.11 0     (1.5 ± 0.9) x 10 -5 0.019 ± 0.011
  608.28 ± 0.12 9760.27   9151.98       (2.5 ± 1.0) x 10 -5 0.0316 ± 0.0127
9756.87 ± 0.11 0     (4.4 ± 0.5) x 10 -5 0.0557 ± 0.0064
  769.92 ± 0.04 9924.88   9154.934           (8 ± 3) x 10 -6 0.0101 ± 0.0038
1612.15 ± 0.04 8312.632     (9.5 ± 1.1) x 10 -5 0.120 ± 0.014
4653.95 ± 0.04 5270.153     (2.2 ± 0.5) x 10 -5 0.0278 ± 0.0063
9921.36 ± 0.04 0     (9.9 ± 0.8) x 10 -5 0.125 ± 0.010
10061.85 ± 0.05   10065.47     0     (4.5 ± 0.8) x 10 -5 0.0570 ± 0.0101
10446.4 ± 0.3   10450.3       0  
10697.63 ± 0.07   10701.72     0           (8 ± 5) x 10 -6 0.0101 ± 0.0063
  131.59 ± 0.07 Capture State 10701.72         (1.4 ± 0.3) x 10 -5 0.0177 ± 0.0038
  383.0 ± 0.3 10450.3           (5.5 ± 2.4) x 10 -6 0.00696 ± 0.00304
  767.82 ± 0.05 10065.47         (5.1 ± 0.3) x 10 -5 0.0646 ± 0.0039
  908.41 ± 0.04 9924.88   (1.27 ± 0.04) x 10 -4 0.161 ± 0.005
1073.00 ± 0.11 9760.27       (6.9 ± 0.4) x 10 -5 0.0873 ± 0.0052
1610.75 ± 0.11 9222.47       (5.8 ± 0.6) x 10 -5 0.0734 ± 0.0076
1678.281 ± 0.14   9154.934     (6.3 ± 0.3) x 10 -3 7.97 ± 0.39
1681.24 ± 0.05 9151.98   (1.29 ± 0.08) x 10 -3 1.63 ± 0.10
1783.61 ± 0.06 9049.59   (1.95 ± 0.13) x 10 -4 0.247 ± 0.017
2261.80 ± 0.04 8571.34       (6.1 ± 0.5) x 10 -5 0.0772 ± 0.0064
2520.457 ± 0.017 8312.632 (4.41 ± 0.24) x 10 -3 5.58 ± 0.31
3269.41 ± 0.15 7563.52       (4.7 ± 0.8) x 10 -5 0.0595 ± 0.0101
3531.981 ± 0.015 7300.889     (7.1 ± 0.4) x 10 -3 8.99 ± 0.52
3677.732 ± 0.013 7155.101 (1.15 ± 0.06) x 10 -2 14.60 ± 0.78  
4508.731 ± 0.012 6323.859 (1.32 ± 0.07) x 10 -2 16.70 ± 0.91  
5533.395 ± 0.014 5298.826 (1.55 ± 0.08) x 10 -2 19.60 ± 1.04  
5562.057 ± 0.013 5270.153     (8.4 ± 0.5) x 10 -3 10.60 ± 0.64  
10829.120 ± 0.012   0   (1.13 ± 0.8) x 10 -2 14.30 ± 1.03  
a) Iγ: Intensity per 100 neutron captures.

Branching Ratios deduced from

Thermal Neutron Capture γ-decay (EGAF)

 

Eγ (keV) Ei (keV) Ef (keV) Branching Ratio (%)
5269.159 ± 0.013 5270.153 0 100
5297.821 ± 0.015 5298.826 0 100
1024.995 ± 0.017 6323.859 5298.826           0.09
1053.666 ± 0.016 5270.153           0.08
6322.428 ± 0.012 0        99.83
  831.218 ± 0.017 7155.101 6323.859           0.25
1884.821 ± 0.016 5270.153        99.41
7153.270 ± 0.016 0           0.34
  976.996 ± 0.018 7300.889 6323.859           0.36
2001.920 ± 0.019 5298.826           2.46
2030.589 ± 0.019 5270.153           0.75
7298.983 ± 0.017 0        96.43
2293.18 ± 0.15 7563.52   5270.153 100
1011.706 ± 0.020 8312.632 7300.889           2.53
1988.632 ± 0.020 6323.859           6.77
3013.482 ± 0.021 5298.826        13.36
8310.161 ± 0.019 0        77.34
2247.30 ± 0.04 8571.34   6323.859           6.59
3300.79 ± 0.04 5270.15          63.74
8568.71 ± 0.04 0        29.67
2725.47 ± 0.06 9049.59   6323.859           9.14
9046.66 ± 0.06 0        90.86
3881.29 ± 0.05 9151.98   5270.153           4.66
9148.98 ± 0.05 0        95.34
  583.59 ± 0.03 9154.934 8571.34             7.25
1853.922 ± 0.019 7300.889           8.58
1999.690 ± 0.016 7155.101        54.57
2830.789 ± 0.017 6323.859        10.58
3855.577 ± 0.019 5298.826           7.37
3884.242 ± 0.018 5270.153           9.63
9151.937 ± 0.017 0           2.03
2898.31 ± 0.11 9222.47   6323.859        27.87
3923.10 ± 0.11 5298.826        47.54
9219.43 ± 0.11 0        24.59
  608.28 ± 0.12 9760.27   9151.98          36.23
9756.87 ± 0.11 0        63.77
  769.92 ± 0.04 9924.88   9154.934           3.57
1612.15 ± 0.04 8312.632        42.41
4653.95 ± 0.04 5270.153           9.82
9921.36 ± 0.04 0        44.20
10061.85 ± 0.05   10065.47     0 100
10446.4 ± 0.3   10450.3       0 100
10697.63 ± 0.07   10701.72     0 100
  131.59 ± 0.07 Capture State 10701.72               0.02
  383.0 ± 0.3 10450.3                 0.01
  767.82 ± 0.05 10065.47               0.06
  908.41 ± 0.04 9924.88             0.16
1073.00 ± 0.11 9760.27             0.09
1610.75 ± 0.11 9222.47             0.07
1678.281 ± 0.14   9154.934           7.91
1681.24 ± 0.05 9151.98             1.62
1783.61 ± 0.06 9049.59             0.24
2261.80 ± 0.04 8571.34             0.08
2520.457 ± 0.017 8312.632           5.54
3269.41 ± 0.15 7563.52             0.06
3531.981 ± 0.015 7300.889           8.92
3677.732 ± 0.013 7155.101        14.44
4508.731 ± 0.012 6323.859        16.58
5533.395 ± 0.014 5298.826        19.47
5562.057 ± 0.013 5270.153        10.55
10829.120 ± 0.012   0        14.19

Previous Measurements

 

Eγ (keV) Ei (keV) Ef (keV) Iγ (%)
(1986KE14) (1967TH05)
Recalculated by (1980KE1K)
(1971BE34) (1969JO1G) (1967TH05) (1963MO1C)
  908 10833   9930         0.1 ± 0.04 0.2 ± 0.1    
1073 9760         0.2 ± 0.05      
1679 9155 7.23 ± 0.18     9.5 ± 0.3 8.0 ± 1.0 9.2 ± 0.5 12
1681 9152 1.54 ± 0.15     1.7 ± 0.4 1.4 ± 0.3
(from (1968GR14))
 
1784 9050       0.7 ± 0.4      
2521 8310 5.79 ± 0.07   6.16 ± 0.24   5.8 ± 0.3 6.0 ± 0.4 6.1 ± 0.3   6
3532 7300 9.24 ± 0.09   9.72 ± 0.19 10.2 ± 0.1 9.3 ± 0.6 9.9 ± 0.5   9
3678 7160 14.89 ± 0.15   14.9 ± 2.7 16.2 ± 0.3 15.0 ± 1.4   15.9 ± 0.8   < 23   
4509 6320 16.54 ± 0.17   16.6 ± 2.6 15.3 ± 0.4 16.5 ± 1.2   16.6 ± 0.8   16
5534 5300 19.75 ± 0.21   20.0 ± 2.6 18.9 ± 0.4 18.5 ± 1.3   18.8 ± 0.9   21
5562 5270 10.65 ± 0.12   10.7 ± 1.4 10.3 ± 0.4 10.4 ± 0.7   10.3 ± 0.5   11
10830   0 13.65 ± 0.21   13.8 ± 0.7 13.8 ± 0.2   13.3 ± 2.0   14
10062   10066   0 0.062 ± 0.004          
9922 9925 0 0.127 ± 0.004          
9219 9222 0 0.024 ± 0.005          
1854 9155 7300       0.9 ± 0.2      
1997 7160 3.99 ± 0.09     3.9 ± 0.4 4.2 ± 0.3 4.6 ± 0.2   4
2830 6320 1.75 ± 0.03 2.03 ± 0.09   2.4 ± 0.4 2.0 ± 0.3 2.0 ± 0.2 1.5
3855 5300 0.70 ± 0.01       0.4 ± 0.04 1.0 ± 0.2 1.0 ± 0.1 0.5
3883 5270 0.57 ± 0.02     0.8 ± 0.2 0.9 ± 0.2 0.8 ± 0.1  
9152 0         1.6 ± 0.07      
9151 9152 0 1.62 ± 0.02 1.61 ± 0.07   1.6 ± 0.2 1.7 ± 0.2 1.4
9047 9050 0 0.186 ± 0.005       0.3 ± 0.05 0.2 ± 0.1   0.2 ± 0.03 0.5
3300 8570 5270   0.16 ± 0.02     0.2 ± 0.1    
8570 0 0.073 ± 0.004       0.2 ± 0.04   0.1 ± 0.05   0.2 ± 0.03  
1989 8310 6320 0.37 ± 0.09     1.5 ± 0.2 0.5 ± 0.2 1.5 ± 0.3  
3014 5300 0.69 ± 0.02     1.1 ± 0.4 0.7 ± 0.2    
8311 0 4.22 ± 0.05 4.20 ± 0.12   3.6 ± 0.1 3.8 ± 0.4 4.4 ± 0.4   4
2002 7300 5300       1.2 ± 0.4      
7299 0 9.73 ± 0.09 9.59 ± 0.19   9.2 ± 0.2 9.2 ± 1.0 10.0 ± 0.5     9
1857 7160 5300 0.8 ± 0.2     0.4 ± 0.2 0.8 ± 0.2  
1885 5270 18.66 ± 0.25     20.5 ± 0.2 18.3 ± 1.5   19.7 ± 1.0   21
7153 0            
6322 6323 0 18.67 ± 0.14   18.8 ± 0.3 18.1 ± 1.3 18.4 ± 1.3   18.8 ± 0.9   18
5298 5300 0 21.31 ± 0.18   21.1 ± 0.3 22.2 ± 0.4 21.4 ± 1.5   21.4 ± 1.1   21
5270 5270 0 30.03 ± 0.20   30.1 ± 4.1 31.2 ± 0.7 31.4 ± 2.2   30.6 ± 1.5   32

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Last modified: 12 June 2019