Evaluation of neutron nuclear data of praseodymium-141 and -143

Figures & data

Table 1 Reaction Q-values (in unit of MeV) of Pr isotopes

	^141Pr	^143Pr
(n, γ)	5.843	5.753
(n, p)	0.229	−0.679
(n, α)	6.150	6.894
(n, d)	−3.002	−3.599
(n, t)	−5.949	−4.512
(n, ^3He)	−5.647	−6.995
(n, 2n)	−9.397	−7.352
(n, 3n)	−17.340	−16.749
(n, np)	−5.227	−5.824
(n, nα)	−1.345	1.733
(n, nd)	−12.204	−10.769

Table 2 Neutron OMP parameters modified from original value in Ref. [9]

V ^0 R	−37.0 MeV
λ R	9.4 × 10^−3 MeV^−1
	9.50 MeV
	13.20 MeV
V ^0 SO	9.00 MeV
R R, D, V	1.20 A ^1/3 fm
a R, D, V	0.58 fm
R SO	1.35 A ^1/3 fm

Figure 1 Total cross section of ¹⁴¹Pr in the energy range from 13.226 keV to 20 MeV

Table 3 Parameters in the level density formula

Nucleus	a*	Δ	E sh	T	E 0	E m	E c
	1/MeV	MeV	MeV	MeV	MeV	MeV	MeV
^144Pr	17.060	0.000	0.915	0.596	−1.667	4.390	0.100
^143Pr	17.669	1.003	0.468	0.576	−0.491	5.146	0.938
^142Pr	16.021	0.000	−0.438	0.635	−1.300	4.293	1.263
^141Pr	17.814	1.011	−1.228	0.551	0.245	4.282	1.452
^140Pr	16.321	0.000	−0.543	0.600	−1.028	3.776	0.630
^139Pr	17.261	1.018	0.317	0.595	−0.526	5.308	1.147
^143Ce	17.669	1.003	0.410	0.629	−1.084	6.105	1.220
^142Ce	17.567	2.014	−0.315	0.597	0.580	6.276	2.112
^141Ce	16.592	1.011	−1.077	0.600	0.082	4.728	2.245
^140Ce	17.363	2.028	−1.947	0.668	0.524	7.036	2.629
^139Ce	17.261	1.018	−1.125	0.669	−0.813	6.272	1.347
^138Ce	17.159	2.043	−0.412	0.620	0.510	6.537	2.471
^142La	17.567	0.000	−0.116	0.597	−1.493	4.304	0.432
^141La	17.465	1.011	−0.494	0.623	−0.605	5.644	1.067
^140La	17.363	0.000	−1.416	0.777	−3.153	7.632	1.038
^139La	17.261	1.018	−2.223	0.706	−0.744	6.665	1.580
^138La	17.159	0.000	−1.499	0.599	−0.937	3.767	0.738
^137La	17.057	1.025	−0.410	0.560	0.108	4.438	2.104
^136La	16.954	0.000	0.209	0.644	−1.972	5.035	0.343

Table 4 Resonance parameters for E1 radiation for calculation of ¹⁴¹Pr

	E r (MeV)	Γ r (MeV)	σ r (mb)
GDR	15.6	4.2	230
Correction	6.5	2.0	8.3
Pygmy	1.5	2.5	0.33

Figure 2 Capture cross section of ¹⁴¹Pr. The top and bottom panels show in the energy region from 13.226 keV to 20 MeV in logarithmic scale and from 5 to 20 MeV in linear scale

Figure 3 Maxwellian-averaged cross sections of capture reaction on ¹⁴¹Pr

Figure 4 (n, 2n) cross section of ¹⁴¹Pr

Figure 5 Cross section of elastic scattering on ¹⁴¹Pr

Figure 6 Cross section of inelastic scattering on ¹⁴¹Pr

Figure 7 Cross section of partial inelastic scattering on ¹⁴¹Pr excited to the first state at 0.145 MeV (top) and second state at 1.117 MeV (bottom)

Figure 8 Cross section of ¹⁴¹Pr(n, p)¹⁴¹Ce

Figure 9 Cross section of ¹⁴¹Pr(n, t)¹³⁹Ce

Figure 10 Cross section of ¹⁴¹Pr(n, α)¹³⁸La

Figure 11 Emitted γ-ray energy from the neutron capture reaction on ¹⁴¹Pr

Figure 12 Total cross section of ¹⁴³Pr in the energy range from 500 eV to 20 MeV

Figure 13 Capture cross section of ¹⁴³Pr from 500 eV to 20 MeV

Figure 14 Maxwellian-averaged cross sections of capture reaction on ¹⁴³Pr comparing with ENDF/B-VII.1, JENDL-4.0, and KADoNis [53]

Kunieda , S , Chiba , S , Shibata , K , Ichihara , A and Sukhovitskiĩ Efrem , S h . 2007 . Coupled-channels optical model analyses of nucleon-induced reactions for medium and heavy nuclei in the energy region from 1 keV to 200 MeV . J Nucl Sci Technol , 44 : 838 – 852 .

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Dillmann , I , Plag , R , Käppeler , F and Rauscher , T . “ KADoNis v0.3 – the third update of the “Karlsruhe Astrophysical Database of Nucleosynthesis in Stars” . In AIP Conference Proceedings 819 , 123 – 127 . New York : American Institute of Physics . Melville online at http://www.kadonis.org

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