17O

Thermal Neutron Capture Evaluated Data



Measurements
1976LOZX: 16O(n, γ), E = thermal; measured σ, γγ-coin. 17O levels deduced γ-branching.
1977MC05: 16O(n, γ), E = thermal; measured σ(Eγ); deduced upper limit for σ(2γ). 17O levels deduced γ-branching.
1977MCZG: 16O(n, γ), E = thermal; measured Eγ, Iγ, γγ-coin. 17O levels deduced γ-branching.
1979WU05: 16O(n, γ), E = thermal; measured σ for double-photon emission, σγ.
1999ZHZM: 16O(n, γ), E = thermal; compiled, evaluated prompt γ-ray data.
2000ZHZP: 16O(n, γ), E = thermal; compiled, analyzed prompt Eγ, Iγ.
2002RE13: 16O(n, γ), E = thermal; compiled, analyzed prompt Eγ, Iγ.
2003MOZU: 16O(n, γ), E not given; compiled, analyzed capture σ, neutron binding energies.
2008FIZZ: 16O(n, γ), E = thermal; measured cross sections; deduced cross section balance.
2011SL01: 16O(n, γ), E = thermal; compiled, evaluated σ, σ(Eγ), γ decay schemes, levels, J, π using ENDF, DICEBOX.
2016FI04: 16O(n, γ), E = thermal; measured Eγ, Iγ, total radiative neutron capture cross sections.
Measured total cross section for 16O(n, γ)17O

Recommended value: 0.189 ± 0.008 mb (EGAF)
Measured values: 0.189 ± 0.008 mb (EGAF)
0.190 ± 0.019 mb (2003MUZZ)
0.202 ± 0.028 mb (1981MUZQ, 1977MC05)
0.202 ± 0.027 mb (1976EA1B)
0.178 ± 0.025 mb (1973MU14, 1964JU05)
< 0.2 mb (1955HU1B)

Recommended Values

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

 

Eγ (keV) Ei (keV) Ef (keV) σγ Iγ a
  870.68 ± 0.06   870.71 0 (1.77 ± 0.11) × 10 -4 93.90 ± 7.06
1087.75 ± 0.06 4143.06 3055.28   (1.58 ± 0.07) × 10 -4 83.80 ± 5.13
3272.02 ± 0.08 870.71 (3.54 ± 0.23) × 10 -5 18.70 ± 1.45
2184.42 ± 0.07 3055.28 870.71 (1.64 ± 0.07) × 10 -4 87.00 ± 5.23
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 (%)
  870.68 ± 0.06   870.71 0 100
1087.75 ± 0.06 4143.06 3055.28           81.74
3272.02 ± 0.08 870.71         18.26
2184.42 ± 0.07 3055.28 870.71 100

Previous Measurements

 

Eγ (keV) Ei (keV) Ef (keV) Iγ (%)
(1977MC05) (1976EA1B)
  870   870 0    
1088 4143 3055   82 ± 3 82 ± 3
3271 870 18 ± 3  
2184 3055 870    

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Last modified: 12 June 2019