NEUTRON ACTIVATION ANALYSIS DATABASE

The core of k₀-NAA is its dedicated nuclear data library, in which the central parameters are the k–factors (for the analytically useful radionuclides and gamma-energies: recommended values with better than 2% uncertainty), but which also contains such evaluated quantitites as Q₀ (=I/s, e.g., resonance integral to 2200 ms<sup-1 cross section ratio), Er (effective resonance energy), decay scheme data (branching ratios, internal conversion factors, etc.) for true coincidence correction of cascading gamma-rays, not forgetting to mention such basic nuclear data as half-lives, gamma-ray energies and occasionally some additional parameters in case of complex activation/decay.

Element	Target isotope	Q₀(s;%)	Ē_r,eV	Formed isotope (Activation/ decay code)	T_1/2	E_γ, keV</th style=”width:19%”>	Measured k_{0; Au} (s, %)	Notes
F	¹⁹F	2.2	44,700	²⁰F (I)	11.16 s	1633.6	9.98E – 4 (1.2)	Q₀ adopted
Na	²³Na	0.59 (–)	3380	²⁴Na (IVb)	14.96 h	1368.6 2754.0	4.68E – 2 (0.6) 4.62E – 2 (0.9)	Data for m + g(m = 20.2 ms)
Mg	²⁶Mg	0.64	257,000	²⁷Mg (I)	9.462 min	170.7 843.8 1014.4	3.02E – 6 (1.0) 2.53E – 4 (0.5) 9.80E – 5 (0.2)	Q₀ adopted
Al	²⁷Al	0.71	11,800	²⁸Al (I)	2.2414 min	1778.9	1.75E – 2 (0.8)	Q₀ adopted
Si	³⁰Si	1.11 (6.)	2280	³¹Si (I)	2.622 h	1266.2	1.45E – 7 (0.7)
S	³⁶S	1.12 (–)		³⁷S (I)	5.05 min	3103.4	1.96E – 6 (1.8)	No resonance data; large terrestrial variation in θ
Cl	³⁷Cl	0.69 (–)	13,700	³⁸Cl (IVb)	37.24 min	1642.7 2167.4	1.97E – 3 (1.4) 2.66E – 3 (1.3)	Data for m + g (m = 715 ms)
Ar	⁴⁰Ar	0.63	31,000	⁴¹Ar (I)	1.822 h	1293.6	3.32E – 2 (–)	Q₀ adopted
K	⁴¹K	0.87 (3.)	2960	⁴²K (I)	12.36 h	312.7 1524.7	1.59E – 5 (1.1) 9.46E – 4 (0.6)
Ca	⁴⁶Ca ⁴⁸Ca	1.3 0.45	1,330,000	⁴⁷Ca (I) ↓ ⁴⁷Sc (IIa) ⁴⁹Ca (I)	4.536 d 3.349 d 8.718 min	489.2 807.9 1297.1 159.4 3084.4	9.14E – 8 (1.8) 9.20E – 8 (0.2) 9.54E – 7 (1.7) 8.57E – 7 (1.6) 1.01E – 4 (0.9)	No resonance data; Q₀ adopted; Large terrestrial variation in θ Q₀ adopted
Sc	⁴⁵Sc	0.43	5130	⁴⁶Sc (IVb)	83.83 d	889.3 1120.5	1.22 (0.4) 1.22 (1.1)	Data for m + g (m = 18.75 s); Q₀ adopted
Ti	⁵⁰Ti	0.67 (–)	63,200	⁵¹Ti (I)	5.76 min	320.1 928.6	3.74E – 4 (1.0) 2.65E – 5 (1.3)
V	⁵¹V	0.55 (–)	7230	⁵²V (I)	3.75 min	1434.1	1.96E – 1 (1.2)
Cr	⁵⁰Cr	0.53 (–)	7530	⁵¹Cr (I)	27.70 d	320.1	2.62E – 3 (0.5)
Mn	⁵⁵Mn	1.053 (3.)	468	⁵⁶Mn (I)	2.579 h	846.8 1810.7 2113.1	4.96E – 1 (0.6) 1.35E – 1 (0.4) 7.17E – 2 (0.2)
Fe	⁵⁸Fe	0.975 (1.)	637	⁵⁹Fe (I)	44.50 d	142.7 192.3 334.8 1099.3 1291.6	1.33E – 6 (1.6) 3.78E – 6 (–) 3.82E – 7 (–) 7.77E – 5 (0.5) 5.93E – 5 (0.4)
Co	⁵⁹Co	2.0 1.993 (3.) 2.0	136 136 136	^60mCo (I) ↓ F₂ ⁶⁰Co (IVb) ^60(m,g)Co (IVd)	10.47 min 5.271 y	58.6 1332.5 1173.2 1332.5 1173.2 1332.5	1.51E – 2 (0.8) 1.75E – 3 (1.4) 1.32 (0.4) 1.32 (0.5) 1.32 (0.4) 5.93E – 1 (–)	Q₀ adopted Data for F₂m + gQ₀(m,g) = 2.0 adopted; σ₀(F₂m/g) = 1,23; γ_1173.2(m/F2g) = 0; γ_1332.5(m/F₂g) = 2.4E – 3
Ni	⁶⁴Ni	0.67 (–)	14,200	⁶⁵Ni (I)	2.517 h	366.3 1115.5 1481.8	2.51E – 5 (1.0) 8.14E – 5 (0.5) 1.27E – 4 (0.6)
Cu	⁶³ Cu ⁶⁵Cu	1.14 (–) 1.06 (–)	1040 766	⁶⁴Cu (I) ⁶⁶Cu (I)	12.70 h 5.120 min	511.0 1345.8 1039.2	3.70E – 2 (–) 4.98E – 4 (0.9) 1.86E – 3 (0.5)	β⁺ –annihilation
Zn	⁶⁴Zn ⁶⁸Zn ⁷⁰Zn	1.908 (5.) 3.19 (1.4) 7.9 (–)	2560 590 17	⁶⁵Zn (I) ^69mZn (I) ⁷¹Zn (I)	244.3 d 13.76 h 2.45 min	1115.5 438.6 121.5 511.6	5.72E – 3 (0.4) 3.98E – 4 (0.6) 1.09E – 7 (3.0) 1.55E – 6 (2.1)
Ga	⁷¹Ga	6.69 (1.2)	154	⁷²Ga (IVb)	14.10 h	630.0 834.0 894.2 1050.7 2201.7 2491.0 2491.0 +2507.8 +2515.0 2507.8 +2515.0	1.49E – 2 (–) 5.23E – 2 (0.6) 5.46E – 3 (0.9) 3.83E – 3 (0.8) 1.48E – 2 (1.0) 4.19E – 3 (1.7) 1.15E – 2 (1.4) 7.29E – 3 (1.3)	Data for m + g (m = 39.7 ms) k₀ for sum k₀ for sum
Ge	⁷⁴Ge ⁷⁶Ge	2.38 (1.6) 1.57 (7.) 8.75 (2.5) 12.9 (6.6)	3540 3540 583 583	^75mGe (I) ↓ F₂ ⁷⁵Ge (IVb) ^77mGe(I) ↓ F₂ ⁷⁷Ge (IVb)	47.7 s 82.78 min 52.9 s 11.30 h	139.7 198.6 468.8 617.7 159.7 211.0 215.5 264.4 367.4 416.3 558.0 631.8 714.4 1085.2	5.73E – 4 (0.9) 6.15E – 5 (–) 1.20E – 5 (–) 4.69E – 6 (–) 2.45E – 5 (1.0) 3.90E – 5 (–) 3.55E – 5 (–) 6.88E – 5 (–) 1.94E – 5 (–) 3.06E – 5 (–) 2.28E – 5 (–) 1.04E – 5 (–) 1.14E – 5 (–) 8.35E – 6 (–)	Data for F₂m + g Data for F₂m + g
As	⁷⁵As	13.6	106	⁷⁶As (I)	26.24 h	559.1 559.1 +563.2 563.2 657.1 1212.9 1212.9 +1216.1 1216.1	4.83E – 2 (1.6) 4.97E – 2 (0.6) 1.40E – 3 (–) 6.61E – 3 (1.3) 1.52E – 3 (1.3) 5.25E – 3 (0.8) 3.73E – 3 (0.9)	Q₀ adopted k₀ for sum k₀ for sum
Se	⁷⁴Se ⁷⁶Se	10.8 (6.5) 0.77	29.4 577	⁷⁵Se (I) ^77mSe (I)	119.8 d 17.36 s	121.1 136.0 264.7 279.5 400.7 162.0	1.94E – 3 (0.6) 6.76E – 3 (1.1) 7.11E – 3 (0.7) 3.00E – 3 (1.2) 1.43E – 3 (0.8) 2.49E – 2 (0.5)	Q₀ adopted
Br	⁷⁹Br ⁸¹Br	12.8 (–) 12.1 (–) 19.3 (3.)	69.3 69.3 152	^80mBr ↓ F₂ = 1 ⁸⁰Br (IVa) ^82mBr ↓ F₂ ⁸²Br (IVb)	4.421 h 17.68 min 6.13 min 35.30 h	616.3 666.3 554.3 619.1 698.4 776.5 827.8 1044.0 1317.5 1474.9	6.92E – 3 (0.3) 1.22E – 3 (0.5) 2.38E – 2 (1.1) 1.45E – 2 (0.8) 9.38E – 3 (0.9) 2.76E – 2 (0.8) 7.99E – 3 (0.9) 9.14E – 3 (0.7) 8.91E – 3 (0.4) 5.42E – 3 (0.5)	σ₀(m/g) = 0.302 Data for F₂m + g
Rb	⁸⁵Rb ⁸⁷Rb	14.8 (2.5) 23.3 (3.)	839 364	86Rb (IVb) 88Rb (I)	18.63 d 17.78 min	1077.0 898.0 1836.0 2677.9	7.65E – 4 (1.0) 1.01E – 1 (1.5) 1.57E – 4 (1.1) 1.47E – 5 (–)	Data for m + g (m = 1.02 min)
Sr	⁸⁴Sr ⁸⁶Sr	14.5 (2.3) 13.2 4.11 (1.7)	469 469 795	^85mSr (I) ↓ F₂ ⁸⁵Sr (IVb) ^87mSr (I)	67.63 min 64.84 d 2.803 h	231.9 514.0 388.5	6.92E – 5 (–) 9.15E – 5 (0.9) 1.49E – 3 (0.5)	Q0 adopted; Data for F2m + g
Y	⁸⁹Y	5.93 (2.3)	4300	^90mY (I)	3.19h	202.5 479.5	2.36E – 5 (2.0) 2.23E – 5 (0.9)
Zr	⁹⁴Zr ⁹⁶Zr	5.31 (3.3) 251.6 (1.)	6260 338	⁹⁵Zr (I) ↓ F₂ ↓ F₂₄ ^95mNb ↓ ↓ F₃ ⁹⁵Nb (IIIa) ⁹⁷Zr (I) ↓ F₂ ↓ F₂₄ ^97mNb (IIa) ↓ ↓ F₃ ⁹⁷Nb (IIIa)	64.02 d 86.6 h 34.97 d 16.74 h 52.7 s 72.1 min	724.2 756.7 724.2 +756.7 765.8 254.2 355.4 507.6 602.4 703.8 1148.0 743.4 657.9	8.90E – 5 (1.3) 1.10E – 5 (1.3) 2.00E – 4 (1.2) 2.17E – 6 (1.5) 1.82E – 7 (–) 2.92E – 7 (–) 6.79E – 7 (–) 1.90E – 7 (–) 1.36E – 7 (–) 3.41E – 7 (–) 1.24E – 5 (0.3) 1.24E – 5 (0.9)	k₀ for sum F₂₄/F₂F₃ = 94.38 F₂₄/F₂F₃ = 0.0331
Nb	⁹³Nb	7.35 (2.7)	574	^94mNb (I)	6.26 min	871.0	9.70E – 5(1.6)
Mo	⁹⁸Mo ¹⁰⁰Mo	53.1 (6.3) 18.8 (4.)	241 672	⁹⁹Mo (I) ↓ F₂ ^99mTc (IId) ¹⁰¹Mo (I) ↓ ↓ ¹⁰¹Tc (IIa)	65.94 h 6.01 h 14.61 min 14.2 min	181.1 366.4 739.5 777.9 140.5 80.9 191.9 195.9 191.9 +195.9 408.7 499.7 505.1 +505.9 590.1 +590.1 695.6 713 869.7 +871.1 877.4 933.3 +934.2 1011.1 1012.5 1011.1 +1012.5 1161 1249.4 +1251.1 1304.0 1532.5 127.2 184.1 306.8 531.4 545.1	4.15E – 5 (0.6) 8.36E – 6 (1.3) 8.46E – 5 (0.7) 2.97E – 5 (1.1) 5.27E – 4 (0.5) 1.80E – 5 (–) 7.25E – 5 (1.6) 1.11E – 5 (1.7) 8.36E – 5 (1.6) 5.85E – 6 (–) 5.63E – 6 (–) 4.71E – 5 (1.9) 8.30E – 5 (1.8) 2.79E – 5 (1.6) 1.37E – 5 (–) 8.61E – 6 (–) 1.53E – 5 (–) 1.75E – 5 (–) 3.75E – 6 (–) 5.80E – 5 (2.3) 6.18E – 5 (2.2) 1.82E – 5 (–) 2.14E – 5 (–) 1.30E – 5 (–) 2.73E – 5 (–) 1.20E – 5 (–) 5.50E – 6 (–) 3.73E – 4 (1.3) 5.01E – 6 (–) 2.49E – 5 (1.0)	Also emitted by ⁹⁹Mo: γ_Mo / F₂ γ_Tc = 0.0675 k₀ for sum k₀ for sum k₀ for sum k₀ for sum k₀ for sum k₀ for sum k₀ for sum
Ru	⁹⁶Ru ¹⁰²Ru ¹⁰⁴Ru	26.5 (3.5) 3.63 (–) 12.8 (2.7)	776 181 495	⁹⁷Ru (I) ¹⁰³Ru (I) ¹⁰⁵Ru (I) ↓ ↓ ^105mRh (IIa) ↓ ¹⁰⁵Rh(IIIc)	2.9 d 39.35 d 4.44 h 45 s 35.36 h	215.7 497.1 610.3 262.8 469.4 469.4 +470.1 676.4 724.3 129.6 306.1 318.9	2.25E – 4 (0.5) 6.89E – 3 (0.4) 4.30E – 4 (0.5) 1.31E – 4 (1.8) 3.26E – 4 (1.4) 3.47E – 4 (1.3) 2.95E – 4 (–) 8.87E – 4 (1.7) 9.20E – 5 (1.3) 1.01E – 4 (1.5) 3.57E – 4 (2.1)	k₀ for sum
Rh	¹⁰³Rh	6.81 (3.5) 6.75 (4.0)	1.45 1.45	^104mRh ↓ F₂ ¹⁰⁴Rh (IVd)	4.34 min 42.3 s	555.8 555.8	6.92E – 2 (1.5)	σ₀(F₂m/g) = 0.0691 γ_555.8(m/F₂g) = 0.0691;
Pd	¹⁰⁸Pd ¹¹⁰Pd	25.0 (–) 26.6 (1.7) 11.9 (6.7)	39.7 39.7 950	^109mPd ↓ ¹⁰⁹Pd (IVb) ↓ ^109mAg (Vc) ^109mAg (Va) ^111mPd (I)	4.69 min 13.46 h 39.6 s 39.6 s 5.5 h	188.9 311.4 309.1 +311.4 647.3 88.0 88.0 172.2	4.94E – 4 (0.3) 1.48E – 5 (1.4) 1.67E – 5 (1.4) 1.13E – 5 (0.5) 1.71E – 3 (–) 1.58E – 3 (–) 1.07E – 5 (1.4)	Data for m + g k₀ for sum Q₀(m) = Q₀(g) = 25.0 assumed; σ₀(m/g) = 0.025
Ag	¹⁰⁷Ag ¹⁰⁹Ag	2.90 (–) 16.7 (4.2) 18.4 (–)	38.5 6.08 6.08	¹⁰⁸Ag (I) ^110mAg (I) ¹¹⁰Ag (I)	2.37 min 249.8 d 24.6 s	434.0 618.9 633.0 446.8 620.4 657.8 677.6 687 706.7 706.7 +708.1 744.3 763.9 818.0 884.7 937.5 1384.3 1475.8 1505.0 1562.3 657.5	1.59E – 3 (1.8) 9.33E – 4 (–) 6.01E – 3 (1.9) 1.36E – 3 (1.7) 1.02E – 3 (0.7) 3.50E – 2 (0.7) 3.93E – 3 (1.2) 2.43E – 3 (1.1) 6.03E – 3 (0.8) 6.12E – 3 (0.8) 1.69E – 3 (1.2) 8.27E – 3 (0.7) 2.69E – 3 (1.2) 2.69E – 2 (0.8) 1.27E – 2 (0.8) 9.12E – 3 (0.8) 1.50E – 3 (0.7) 4.84E – 3 (0.8) 4.35E – 4 (1.0) 3.06E – 2 (0.4)	Negligible contribution from ^108m–108Ag k₀ for sum ^110m–110Ag negligible
Cd	¹¹⁴Cd	32.4	207	¹¹⁵Cd (I) ↓ ^115mIn (IIa)	53.46 h 4.486 h	527.9 336.2	4.77E – 4 (1.3) 7.73E – 4 (1.7)	Q₀ adopted; No I.T. from ^115mCd
In	¹¹³In ¹¹⁵In	24.2 (1.7) 16.8 (1.9)	6.41 1.56	^114mIn (IVb) ^116mIn (IVb)	49.51 d 54.41 min	190.3 558.4 725.2 138.3 416.9 818.7 1097.3 1293.5 1507.4 2112.1	1.06E – 3 (0.8) 2.86E – 4 (0.7) 2.90E – 4 (0.6) 1.01E – 1 (1.4) 7.54E – 1 (1.1) 3.36E – 1 (1.2) 1.60 (1.3) 2.29 (0.8) 2.69E – 1 (1.4) 4.18E – 1 (1.2)	Data for m₂ + m (m₂ = 43.1 ms) Data for m₂ + m (m₂ = 2.18 s)
Sn	¹¹²Sn ¹¹⁶Sn ¹²²Sn ¹²⁴Sn	48.4 (1.2) 56.3 (1.9) 5.40 (2.5) 60.1 (2.9) 17.2 (11.)	107 128 424 74.2 74.2	^113mSn ↓ F2 ¹¹³Sn (IVb) ↓ ^113mln (Vc) ^117mSn (I) ^123mSn (I) ^125mSn (I) ^125mSn (I)	21.4 min 115.1 d 1.658 h 13.60 d 40.06 min 9.52 min 9.64 d	255.1 391.7 156.0 158.6 156.0 +158.6 160.3 331.9 332.1 822.5 1067.1 1087.7 +1089.2	1.95E – 6 (1.2) 5.99E – 5 (0.8) 3.23E – 7 (1.5) 1.33E – 5 (1.0) 1.36E – 5 (1.0) 1.02E – 4 (0.5) 1.18E – 4 (2.0) 5.73E – 8 (–) 2.10E – 7 (–) 4.64E – 7 (–) 2.63E – 7 (–)	“ Data for F₂m + g Data for F₂m + g Care for ¹¹⁷Sn (n,n’) interf.; k₀ for sum No I.T. to ¹²⁵Sn k₀ for sum
Sb	¹²¹Sb ¹²³Sb ₁₂₃Sb	33 33.0 (3.5) 33 22.0 (–) 19.9 (–) 28.8 (3.7)	13.1 13.1 13.1 28.2 28.2 28.2	122mSb ↓ ¹²²Sb (IVb) ¹²²Sb (IVa) ^124m2Sb ↓ ^124mlSb (IVa) ↓F₃ ↓F₃ ¹²⁴Sb(VI)	4.191 min 2.724 d 2.724 d 20.2 min 93 s 60.20 d	564.2 692.7 564.2 692.7 498.4 602.7 645.8 602.7 645.9 722.8 1691.0 2090.9	4.38E – 2 (1.5) 2.38E – 3 (2.0) 4.31E – 2 (0.9) 2.39E – 3 (–) 1.43E – 4 (–) 1.43E – 4 (–) 1.43E – 4 (–) 2.96E – 2 (0.6) 2.21E – 3 (0.7) 3.19E – 3 (0.8) 1.41E – 2 (1.1) 1.58E – 3 (2.0)	Q₀ adopted Data for m + g Q₀ adopted; σ₀(m/g) = 0.016 σ₀(m/g) = 0.337 Data for F₃(m₂ + m₁) + g
Te	¹³⁰Te	1.8 1.80 (5.8)	2950 2950	^131mTe ↓ F₂ = 0.222 ↓ ↓ F ₂₄= 0.778¹³¹ Tc ↓ ↓ F₃ = 1 ¹³¹I (VIIa)	30h 25.0 min 8.021 d	80.2 284.3 364.5 637.0	2.49E – 5 (–) 6.62E – 5 (0.6) 8.67E – 4 (0.8) 7.58E – 5 (–)	Q₀ adopted σ₀(m/g) = 0.074
I	¹²⁷I	24.8 (2.7)	57.6	¹²⁸I (I)	24.99min	442.9 526.6	1.12E – 2 (1.7) 1.07E – 3 (1.4)
Cs	¹³³Cs	11.8 (3.) 12.7 13.2	9.27 9.27 9.27	^134mCs (I) ↓ ¹³⁴Cs (IVb) ¹³⁴Cs (IVa)	2.903 h 2.065 y 2.065 y	127.5 563.2 569.3 604.7 795.9 802.0 563.2 569.3 604.7 795.9 802.0	5.48E – 3 (1.7) 4.14E – 2 (1.7) 7.34E – 2 (1.5) 4.76E – 1 (2.0) 4.15E – 1 (2.0) 4.11E – 2 (2.0) 3.85E – 2 (–) 6.67E – 2 (–) 4.44E – 1 (0.3) 3.92E – 1 (1.2) 3.88E – 2 (–)	Q₀ adopted; Data for m + g Q₀ adopted; σ₀(m/g) = 0.087
Ba	¹³⁰Ba 132Ba ¹³⁸Ba	24.8 (–) 5.6 0.88 (–)	69.9 143 15,700	¹³¹Ba (IVb) ^133mBa (I) ¹³⁹Ba (I)	11.50 d 38.9 h 83.06min	123.8 133.6 216.1 373.2 486.5 496.3 620.1 275.9 165.9	3.90E – 5 (0.7) 3.24E – 6 (–) 2.75E – 5 (1.4) 1.92E – 5 (0.4) 3.44E – 6 (–) 6.48E – 5 (0.2) 2.34E – 6 (–) 2.27E – 6 (–) 1.05E – 3 (0.7)	Data for m + g (m = 14.6 min) Q₀ adopted
La	¹³⁹La	1.24 (–)	76.0	¹⁴⁰La (I)	1.678 d	328.8 487.0 815.8 1596.2	2.87E – 2 (1.0) 6.37E – 2 (0.9) 3.32E – 2 (0.6) 1.34E – 1 (1.1)
Ce	¹⁴⁰Ce ¹⁴²Ce	0.83 1.20	7200 1540	¹⁴¹Ce (I) ¹⁴³Ce (I)	32.51 d 33.10 h	145.4 231.6 293.3 350.6 664.6 721.9	3.66E – 3 (0.9) 3.37E – 5 (1.4) 6.89E – 4 (0.5) 5.14E – 5 (0.5) 9.18E – 5 (1.5) 8.78E – 5 (0.9)	Q₀ adopted Q₀ adopted
Pr	¹⁴¹Pr	1.51	296	¹⁴²Pr (IVb)	19.12h	1575.6	6.12E – 3 (0.6)	Q₀ adopted; Data for m + g (m = 14.6 min)
Nd	¹⁴⁶Nd ¹⁴⁸Nd ¹⁵⁰Nd	2.00 (1.2) 5.08 (2.5) 12.3 (0.8)	874 236 173	¹⁴⁷Nd (I) ¹⁴⁹Nd (I) ↓ ¹⁴⁹Pm (IIa) ¹⁵¹Nd(I) ↓ ¹⁵¹Pm (IIa)	10.98 d 1.728 h 53.08 h 12.44min 28.40 h	91.1 120.5 275.4 319.4 398.2 439.9 531.0 685.9 96.9 +97.0 114.3 155.1 +155.9 198.0 +198.9 208.1 211.3 240.2 267.7 270.2 326.6 347.8 +349.2 423.6 +425.2 540.5 654.8 286.0 255.7 1180.9 340.1	1.02E – 3 (2.5) 1.28E – 5 (–) 2.86E – 5 (2.0) 6.78E – 5 (0.9) 2.90E – 5 (–) 4.22E – 5 (1.4) 4.56E – 4 (1.1) 2.68E – 5 (–) 3.32E – 5 (–) 4.05E – 4 (–) 1.22E – 4 (–) 2.98E – 5 (–) 5.71E – 5 (–) 5.26E – 4 (–) 7.72E – 5 (–) 1.16E – 4 (–) 2.12E – 4 (–) 9.10E – 5 (–) 2.96E – 5 (–) 1.60E – 4 (–) 1.35E – 4 (–) 1.66E – 4 (–) 6.10E – 5 (1.1) 1.31E – 4 (–) 1.09E – 4 (–) 1.73E – 4 (–)	k₀ for sum k₀ for sum k₀ for sum k₀ for sum k₀ for sum
Sm	¹⁵²Sm ¹⁵⁴Sm	14.4 (2.1) 4.30 (7.)	8.53 142	¹⁵³Sm (I) ¹⁵⁵Sm (I)	46.50 h 22.3min	69.7 103.2 141.4 245.7	3.52E – 2 (1.0) 2.31E – 1 (0.4) 4.83E – 4 (1.3) 9.05E – 4 (1.4)
Eu	¹⁵¹Eu ¹⁵³Eu	s₀ = 1.20 s0 = 1.25 5.66 (–)	0.448 0.448 5.8	^152mEu (I) No I.T. ¹⁵²Eu (I) ¹⁵⁴Eu (IVb)	9.312 h 13.54 y 8.593 y	121.8 344.2 841.6 963.3 121.8 244.7 344.3 444.0 +444.0 778.9 867.4 963.4 +964.1 1084 +1085.9 1112.1 1408.0 248.0 591.8 723.3 756.9 873.2 996.4 1274.4	1.48 (–) 4.98E – 1 (–) 3.02 (–) 2.49 (–) 12.8 (0.8) 3.44 (0.3) 11.9(0.9) 1.39 (1.2) 5.70 (0.8) 1.88 (0.9) 6.46 (0.4) 4.57 (0.4) 6.07 (0.8) 9.36 (0.6) 1.55E – 1 (–) 1.08E – 1 (1.5) 4.46E – 1 (1.5) 1.08E – 1 (–) 2.72E – 1 (1.4) 2.30E – 1 (–) 7.77E – 1 (1.1)	s₀ adopted; Strongly non – 1/ν; for g(T_n). see text; Negligible contribution from ^152m2→152mEu s₀ adopted; Strongly non – 1/ν; for g(T_n). see text; Data for m + g (m = 46.0 min)
Gd	¹⁵²Gd ¹⁵⁸Gd ¹⁶⁰Gd	0.77 (15.) 29.9 (3.1) 3.83 (1.9)	16.7 48.2 480	¹⁵³Gd (I) ¹⁵⁹Gd (I) ¹⁶¹Gd (I)	240.4 d 18.56 h 3.66min	97.4 103.2 363.5 102.3 165.2 283.6 314.9 360.9 480.1	5.86E – 3 (1.4) 4.21E – 3 (1.4) 8.49E – 4 (1.6) 7.88E – 4 (–) 1.07E – 4 (–) 2.84E – 4 (–) 1.03E – 3 (–) 2.72E – 3 (–) 1.04E – 4 (–)
Tb	¹⁵⁹Tb	17.9 (3.8)	18.1	¹⁶⁰Tb (I)	72.3 d	86.8 197.0 215.6 298.6 879.4 962.3 962.3 +966.2 966.2 1178.0 1199.9 1271.9 1312.1	4.20E – 2 (1.1) 1.62E – 2 (0.5) 1.27E – 2 (0.4) 8.25E – 2 (1.2) 9.42E – 2 (0.9) 3.05E – 2 (–) 1.08E – 1 (1.4) 7.84E – 2 (–) 4.71E – 2 (1.1) 7.53E – 3 (1.3) 2.35E – 2 (0.8) 8.98E – 3 (0.9)	k₀ for sum
Dy	¹⁶⁴Dy	0.25 (–) 0.19 (–)	224 224	^165mDy (I) ↓ F₂ ¹⁶⁵Dy (IVb)	1.257min 2.334 h	108.2 515.5 94.7 279.8 361.7 633.4 715.3	1.88E – 1 (–) 9.25E – 2 (–) 3.57E – 1 (1.4) 4.88E – 2 (0.8) 8.36E – 2 (0.7) 5.62E – 2 (1.5) 5.23E – 2 (1.2)	Data for F₂m + g
Ho	¹⁶⁵Ho	10.9 (2.4)	12.3	¹⁶⁶Ho (I)	26.83 h	80.6 1379.4 1581.9 1662.5	4.94E – 2 (1.0) 6.95E – 3 (1.6) 1.40E – 3 (2.1) 8.75E – 4 (0.7)	No I.T. from ^166mHo (but also emits 80.6 keV line)
Er	¹⁷⁰Er	4.42 (3.3)	129	¹⁷¹Er (I)	7.516 h	111.6 116.7 124.0 210.1 +210.6 237.1 295.9 308.3	3.41E – 3 (0.8) 3.81E – 4 (–) 1.52E – 3 (0.6) 1.09E – 4 (–) 5.23E – 5 (–) 4.79E – 3 (1.5) 1.04E – 2 (1.4)	k₀ for sum
Tm	¹⁶⁹Tm	13.7 (1.6)	4.8	¹⁷⁰Tm (I)	128.6 d	84.3	3.26E – 2 (1.7)
Yb	¹⁶⁸Yh ¹⁷⁴Yb ¹⁷⁶Yb	s₀ = 4.97(–) 0.46 2.50 (1.8)	0.61 602 412	¹⁶⁹Yb (IVb) ¹⁷⁵Yb (IVb) ¹⁷⁷Yb (IVb)	32.03 d 4.185 d 1.911 h	63.1 109.8 130.5 177.2 198.0 307.7 113.8 137.7 144.9 282.5 396.3 122.7 139.3 150.6 898.9 941.8 1028.1 1080.2 1119.7 1149.8 1241.2	2.04E – 2 (–) 7.79E – 3 (–) 5.17E – 3 (–) 1.04E – 2 (–) 1.64E – 2 (–) 4.34E – 3 (–) 9.42E – 3 (1.3) 5.69E – 4 (0.6) 1.59E – 3 (1.5) 1.46E – 2 (0.3) 3.12E – 2 (0.6) 1.64E – 4 (–) 6.48E – 5 (–) 8.94E – 4 (–) 3.12E – 5 (–) 4.87E – 5 (–) 2.94E – 5 (–) 2.68E – 4 (–) 2.74E – 5 (–) 2.96E – 5 (–) 1.62E – 4 (–)	Data for m + g (m = 46 s); significant non–1/v; for g(T_n). see text Q₀ adopted; Data for m + g (m = 68.2 ms) Data for m + g (m = 6.41 s)
Lu	¹⁷⁵Lu ¹⁷⁶Lu	34.8 (3.1) s₀ = 1.67	16.1 0.158	^176mLu (I) ¹⁷⁷Lu (I)	3.635 h 6.73 d	88.4 112.9 208.4	1.73E – 2 (1.5) 4.15E – 2* 7.14E – 2*	negligible contribu– tion from ^177m–177Lu; very strongly non– 1/v; for g(T_n). see text; s₀ adopted; * theoretical k₀–factors (¹⁷⁷Lu is T_n–monitor)
Hf	¹⁷⁴Hf ¹⁷⁸Hf ¹⁷⁹Hf ¹⁸⁰Hf	0.78 (–) 16.6 (–) 14.4 (2.4) 2.52 (3.6)	29.6 7.90 16.2 115	¹⁷⁵Hf (I) ^179mHf (I) ^180mHf (I) ¹⁸¹Hf (I)	70 d 18.67 s 5.5 h 42.39 d	343.4 214.3 93.3 215.4 332.3 443.2 500.7 133.0 133.0 +136.3 +136.9 136.3 +136.9 345.9 482.2	9.06E – 3 (1.0) 1.77E – 1 (0.2) 1.24E – 4 (0.5) 5.91E – 4 (1.5) 6.74E – 4 (2.0) 5.88E – 4 (1.9) 1.02E – 4 (0.9) 2.37E – 2 (0.6) 2.76E – 2 (1.0) 3.65E – 3 (–) 7.93E – 3 (–) 4.56E – 2 (0.9)	k₀ for sum k₀ for sum
Ta	¹⁸¹Ta	33.3 (–)	10.4	¹⁸²Ta (IVb)	114.4 d	67.8 100.1 152.4 222.1 1121.3 1189.1 1221.4 1231.0	9.08E – 2 (–) 3.18E – 2 (–) 1.62E – 2 (0.7) 1.78E – 2 (0.9) 8.27E – 2 (0.8) 3.88E – 2 (0.7) 6.45E – 2 (0.8) 2.72E – 2 (0.7)	Data for m + g (m = 15.8 min)
W	¹⁸⁶W	13.7 (1.8)	20.5	¹⁸⁷W (I)	23.72 h	134.2 479.6 551.5 618.3 685.7 772.9	1.13E – 2 (0.7) 2.97E – 2 (1.0) 6.91E – 3 (0.5) 8.65E – 3 (0.5) 3.71E – 2 (0.5) 5.61E – 3 (0.7)
Re	¹⁸⁵Re ¹⁸⁷Re	15.4 (2.5) 4.57 (6.4) 4.34 (6.4)	3.4 41.1 41.1	¹⁸⁶Re (I) ^188mRe (I) ↓ ¹⁸⁸Re (IVa)	3.718 d 18.6min 17.01 h	122.6 137.2 92.4 106.0 155.0 478.0 633.0 635.0 633.0 +635.0 829.5 931.3	2.79E – 3 (1.1) 4.33E – 2 (0.7) 7.77E – 4 (1.5) 1.50E – 3 (1.6) 7.77E – 2 (0.6) 5.29E – 3 (0.8) 6.83E – 3 (1.3) 8.08E – 4 (1.6) 7.64E – 3 (1.3) 2.17E – 3 (–) 2.85E – 3 (–)	negligible contribu– tion from ^186m–186Re σ₀(m/g) = 0.028 k₀ for sum
Os	¹⁸⁴Os ¹⁹⁰Os ¹⁹²Os	0.43 2.40 2.03 2.34 (–)	114 114 89.7	¹⁸⁵Os (I) ^191mOs ↓ ¹⁹¹Os (IVa) ¹⁹³Os (I)	93.6 d 13.10 h 15.4 d 30.11 h	646.1 129.4 138.9 142.1 138.9 +142.1 180.0 +181.8 219.0 +219.1 251.6 280.4 298.8 321.6 361.8 387.5 460.5 556.0 +557.4 559.3 +560.0 556.0 +557.4 +559.3 +560.0	6.43E – 3 (1.5) 2.91E – 3 (1.6) 5.35E – 4 (1.4) 9.49E – 6 (1.6) 5.44E – 4 (1.4) 4.76E – 5 (–) 3.86E – 5 (–) 3.04E – 5 (–) 1.79E – 4 (0.5) 2.83E – 5 (–) 1.78E – 4 (0.9) 3.81E – 5 (–) 1.73E – 4 (1.5) 5.55E – 4 (1.4) 1.86E – 4 (1.7) 6.82E – 5 (1.8) 2.54E – 4 (1.7)	Q₀ adopted; No resonance data; large terrestrial variation in θ Q₀ adopted Q₀ adopted; σ₀(m/g) = 2.36 k₀ for sum k₀ for sum k₀ for sum k₀ for sum k₀ for sum k₀ for sum
Ir	¹⁹³Ir	12.0 (2.9)	2.21	¹⁹⁴Ir (IVb)	19.28 h	293.5 328.4 645.1 938.7	2.03E – 2 (1.3) 1.03E – 1 (1.0) 9.38E – 3 (–) 4.76E – 3 (–)	Data for m₁ + g (m₁ = 31.85 ms) ^194m2Ir 328.4 keV negligible
Pt	¹⁹⁸Pt	17.0 (1.8)	106	^199mPt ↓ ¹⁹⁹Pt ↓ ¹⁹⁹Au (Vb) ¹⁹⁹Au (Vd)	13.6 s 30.80min 3.139d 3.139 d	158.4 208.2 158.4 208.2	1.03E – 3 (1.4) 2.26E – 4 (1.0) 1.03E – 3 (0.2) 2.26E – 4 (1.3)	Data for m + g Data for m + g
Au	¹⁹⁷Au	15.7 s₀ = 17.2	5.65	¹⁹⁸Au (I)	2.695 d	411.8	≡1	Ultimate comparator
Hg	¹⁹⁶Hg ²⁰²Hg ²⁰⁴Hg	0.49 0.88 1.98	93.5 1960	^197mHg (I) ²⁰³Hg (I) ²⁰⁵Hg (I)	23.8 h 46.61 d 5.2 min	134.0 279.2 203.7	4.99E – 4 (1.0) 1.10E – 2 (1.7) 6.91E – 6 (0.2)	Q₀ adopted Q₀ adopted Q₀ adopted; No resonance data
Th	²³²Th	11.5 (3.6)	54.4	²³³Th ↓ ²³³Pa (IIb)	22.3min 26.97 d	300.1 311.9 340.5 375.4 398.5 415.8	4.37E – 3 (0.3) 2.52E – 2 (0.5) 2.95E – 3 (0.7) 4.49E – 4 (0.6) 9.26E – 4 (0.5) 1.16E – 3 (1.0)
U	²³⁸U	103.4 (1.3)	16.9	²³⁹U (I) ↓ ²³⁹Np (IIb)	23.45min 2.357 d	74.7 106.1 209.8 226.4 +227.8 +228.2 227.8 +228.2 277.6 285.8 315.9 334.2	1.33E – 2 (1.2) 6.52E – 3 (0.6) 7.80E – 4 (0.5) 2.76E – 3 (0.7) 2.71E – 3 (0.7) 3.40E – 3 (0.8) 1.83E – 4 (–) 3.68E – 4 (1.5) 4.81E – 4 (1.0)	k₀ for sum k₀ for sum
U	²³⁵U (n,f)	0.47	0.59	⁹⁵Zr (I) ↓ F₂ ↓ F₂₄ ^95mNb ↓ ↓ F₃ ⁹⁵Nb (IIIa) ⁹⁷Zr(I) ↓ F₂ ↓ F₂₄^97mNb (IIa) ↓ ↓ F₃ ⁹⁷Nb (IIIa) ⁹⁹Mo (I) ↓ F₂ ^99mTc (IId) ¹⁰³Ru (I) ¹⁰⁵Ru (I) ↓ ↓ ^105mRh (IIa) ↓ ¹⁰⁵Rh (IIIc) ¹³¹Te ↓ F₂ = 0.222 ↓ ↓ F₂₄ = 0.778 ¹³¹Te ↓ ↓ F₃ = 1 ¹³¹I (VI) ¹³⁹Ba (I) ¹⁴⁰Ba (I) ↓ ¹⁴⁰La(IIa) ¹⁴¹Ce (I) ¹⁴³Ce (I) ¹⁴⁷Nd (I)	64.02 d 86.6 h 34.97d 16.74 h 16.74 h 52.7 s 72.1min 65.94h 6.01 h 39.35d 4.44 h 45 s 35.36h 30h 25.0min 8.021d 83.06min 12.75 d 1.678d 32.51 d 33.10 h 10.98 d	724.2 756.7 765.8 743.4 657.9 181.1 366.4 739.5 777.9 140.5 497.1 610.3 262.8 469.4 724.3 129.6 306.1 318.9 284.3 364.5 165.9 328.8 487.0 815.8 1596.2 145.4 231.6 293.3 350.6 664.6 721.9 91.1 275.4 319.4 439.9 531.0	1.02E – 3 (2.1) 1.26E – 3 (2.4) 2.44E – 5 (0.4) 2.01E – 3 (1.2) 2.02E – 3 (0.7) 1.34E – 4 (2.2) 2.75E – 5 (4.2) 2.72E – 4 (2.2) 9.19E – 5 (1.8) 1.68E – 3 (2.4) 9.68E – 4 (–) 9.87E – 5 (–) 3.03E – 5 (–) 6.76E – 5 (–) 1.78E – 4 (–) 2.29E – 5 (–) 1.91E – 5 (–) 6.57E – 5 (–) 6.38E – 5 (–) 8.05E – 4 (–) 6.60E – 4 (–) 4.57E – 4 (1.3) 1.01E – 3 (1.0) 5.17E – 4 (0.8) 2.10E – 3 (0.5) 1.03E – 3 (0.5) 4.51E – 5 (2.9) 9.05E – 4 (1.0) 6.77E – 5 (–) 1.20E – 4 (0.8) 1.15E – 4 (0.9) 2.41E – 3 (–) 6.50E – 6 (–) 1.61E – 5 (–) 1.00E – 5 (–) 1.08E – 4 (–)	Q₀ adopted F₂₄/F₂F₃ = 94.38 F₂₄/F₂F₃ = 0.0331 Also emitted by ⁹⁹Mo: γ_Mo/F₂γ_Tc = 0.0675

Reference:

Element	Target isotope	Q₀(s;%)	Ē_r,eV	Formed isotope (Activation/ decay code)	T_1/2	E_γ, keV</th style=”width:19%”>	Measured k_{0; Au} (s, %)	Notes

Element	Target isotope	Q₀(s;%)	Ē_r,eV	Formed isotope (Activation/ decay code)	T_1/2	E_γ, keV</th style=”width:19%”>	Measured k_{0; Au} (s, %)	Notes

$(document).ready(function(){ $(“#myInput”).on(“keyup”, function() { var value = $(this).val().toLowerCase(); $(“#myTable tr”).filter(function() { $(this).toggle($(this).text().toLowerCase().indexOf(value) > -1) }); }); });

Nino Research Group

Nino Research Group

NEUTRON ACTIVATION ANALYSIS DATABASE

NEUTRON ACTIVATION ANALYSIS DATABASE

Reference:

UF Resources

Campus

Website