1967RA24: ¹²C(n, γ), E = thermal; measured E_γ; deduced Q.

1968SP01: ¹²C(n, γ), E = thermal; measured E_γ, I_γ; deduced Q. ¹³C deduced levels, branchings.

1971JUZS: ¹²C(n, γ), E = thermal; measured E_γ, I_γ. ¹³C deduced transitions.

1974SP04: ¹²C(n, γ); measured E_γ; deduced Q.

1975SM02: ¹²C(n, γ); measured atomic mass.

1981MUZU: ¹²C(n, γ), E = thermal; measured σ(capture), ratio.

1982JU01: ¹²C(n, γ), E = thermal; measured E_γ, I_γ, σ. ¹³C transitions deduced I_γ.

1982MU14: ¹²C(n, γ), E = thermal; measured σ(E_γ), I_γ; deduced capture mechanism. ¹³C levels deduced S.

1999ZHZM: ¹²C(n, γ), E = thermal; compiled, evaluated prompt γ-ray data.

2000ZHZP: ¹²C(n, γ), E = thermal; compiled, analyzed prompt E_γ, I_γ.

2002RE13: ¹²C(n, γ), E = thermal; compiled, analyzed prompt E_γ, I_γ.

2003MOZU: ¹²C(n, γ), E = thermal; compiled, analyzed k₀ factors and capture σ, neutron binding energies.

2004MA76: ¹²C(n, γ), E = thermal; analyzed data; deduced k₀ factors, γ-emission probabilities.

Measured total cross section for ¹²C(n, γ)¹³C

Recommended value:	3.89 ± 0.06 mb	(EGAF)
Measured values:	3.89 ± 0.06 mb	(EGAF)
	3.53 ± 0.05 mb	(2003MUZZ)
	3.53 ± 0.07 mb	(1982JU01)
	3.4 ± 0.3 mb	(1973MU14)
	3.4 ± 0.3 mb	(1964ST25)
	3.8 ± 0.8 mb	(MO63L)
	3.3 ± 0.2 mb	(1958HU18)

Recommended Values

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

 

Eγ (keV)	Ei (keV)	Ef (keV)	σγ	Iγ a
3089.057 ± 0.009	3089.451	0	(1.67 ± 0.08) x 10 -5	0.429 ± 0.022
595.015 ± 0.009	3684.480	3089.451	(9.61 ± 0.40) x 10 -6	0.247 ± 0.011
3683.920 ± 0.009		0	(1.23 ± 0.03) x 10 -3	31.7 ± 0.9
1261.765 ± 0.009	Capture State	3684.480	(1.25 ± 0.03) x 10 -3	32.2 ± 0.9
1856.717 ± 0.009		3089.451	(6.27 ± 0.40) x 10 -6	0.161 ± 0.011
4945.301 ± 0.003		0	(2.64 ± 0.05) x 10 -3	67.8 ± 1.7

a) Iγ: Intensity per 100 neutron captures.

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Branching Ratios deduced from

Thermal Neutron Capture g-decay

 

Eγ (keV)	Ei (keV)	Ef (keV)	Branching Ratio (%)
3089.057 ± 0.009	3089.451	0	100
595.015 ± 0.009	3684.480	3089.451	0.8
3683.920 ± 0.009		0	99.2
1261.765 ± 0.009	Capture State	3684.480	32.2
1856.717 ± 0.009		3089.451	0.2
4945.301 ± 0.003		0	67.7

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Previous Measurements

 

Eγ (keV)	Ei (keV)	Ef (keV)	Iγ (%)
			(1982MU14)	(1982JU01)	(1968SP01)	(1967TH05)	(1961JA19)	(GR58A)	(1953BA18)
1262	4947	3684	32.36 ± 0.44	31.0 ± 0.4	32 ± 1	34 ± 2	30	25
1857		3090	0.16 ± 0.01
4946		0	67.47 ± 0.92	68.6 ± 0.9	68 ± 1	66 ± 3	69	75	70
3089	3684	3090	0.74 ± 0.05
3682		0	99.3 ± 2.0		32 ± 1	34 ± 2	31	25	30

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Last modified: 20 June 2008