| JEF-2.2 | JEFF-3.0 | JEFF-3.1 | JEFF-3.1.1 | JEFF-β Proposals | Submit new feedback |
| Nuclide* | File name** | From | Date | Comment | Status |
|---|---|---|---|---|---|
| 11-Na-22 | JEFF30N1122_1.ASC | A. Hogenbirk JEF/DOC-911 |
April 2002 | Missing energy spectra for reactions MT=22 (n,nα) and MT=28 (n,np). Proposed evaporation spectra by Sublet as follows (see file Na-22.txt) - Spectrum for (n,nα) with U=6.641 MeV and effective temperature varying from teta = 800 keV at Ethreshold (6.8270 MeV) to teta = 1.2 MeV at 20 MeV. - Spectrum for (n,np) U=8.507 MeV and effective temperature varying from teta = 900 keV at Ethreshold (8.7460 MeV) to teta = 1.1 MeV at 20 MeV. |
Submitted |
| 18-Ar-36 | JEFF30N1825_1.ASC | A. Hogenbirk JEF/DOC-911 |
April 2002 | Missing energy spectra for reactions MT=22 (n,nα) and MT=28 (n,np). Proposed evaporation spectra by Sublet as follows (see file Ar-36.txt): - Spectrum for (n,nα) with U=6.641 MeV and effective temperature varying from teta = 800 keV at Ethreshold (6.8270 MeV) to teta = 1.2 MeV at 20 MeV. - Spectrum for (n,np) U=8.507 MeV and effective temperature varying from teta = 900 keV at Ethreshold (8.7460 MeV) to teta = 1.1 MeV at 20 MeV. |
Submitted |
| 18-Ar-38 | JEFF30N1831_1.ASC | A. Hogenbirk JEF/DOC-911 |
April 2002 | Missing energy spectra for reactions MT=22 (n,nα) and MT=28 (n,np). Proposed evaporation spectra by Sublet as follows (see file Ar-38.txt): - Spectrum for (n,nα) with U=7.209 MeV and effective temperature varying from teta = 800 keV at Ethreshold (7.40 MeV) to teta = 1.2 MeV at 20 MeV. - Spectrum for (n,np) U=10.24 MeV and effective temperature varying from teta = 900 keV at Ethreshold (10.51 MeV) to teta = 1.1 MeV at 20 MeV. |
Submitted |
| 18-Ar-40 | JEFF30N1837_1.ASC | A. Hogenbirk JEF/DOC-911 |
April 2002 | Missing energy spectra for reactions MT=22 (n,nα) and MT=28 (n,np). Proposed evaporation spectra by Sublet as follows (see file Ar-40.txt): - Spectrum for (n,nα) with U=6.799 MeV and effective temperature varying from teta = 800 keV at Ethreshold (6.971 MeV) to teta = 1.2 MeV at 20 MeV. - Spectrum for (n,np) U=12.53 MeV and effective temperature varying from teta = 900 keV at Ethreshold (12.85 MeV) to teta = 1.1 MeV at 20 MeV. |
Submitted |
| 27-Co-58 | JEFF30N2722_3.ASC | A. Hogenbirk JEF/DOC-911 |
April 2002 | Missing energy spectra for reactions MT=22 (n,nα) and MT=28 (n,np). Proposed evaporation spectra by Sublet as follows (see file Co-58.txt): - Spectrum for (n,nα) with U=6.715 MeV and effective temperature varying from teta = 800 keV at Ethreshold (6.8319 MeV) to teta = 1.2 MeV at 20 MeV. - Spectrum for (n,np) U=7.8631 MeV and effective temperature varying from teta = 900 keV at Ethreshold (8.00 MeV) to teta = 1.1 MeV at 20 MeV. |
Submitted |
| 27-Co-58M | JEFF30N2723_2.ASC | A. Hogenbirk JEF/DOC-911 |
April 2002 | Missing energy spectra for reactions MT=22 (n,nα) and MT=28 (n,np). Proposed evaporation spectra by Sublet as follows (see file Co-58m.txt): (identical to 27-Co-58 ground) - Spectrum for (n,nα) with U=6.715 MeV and effective temperature varying from teta = 800 keV at Ethreshold (6.8319 MeV) to teta = 1.2 MeV at 20 MeV. - Spectrum for (n,np) U=7.8631 MeV and effective temperature varying from teta = 900 keV at Ethreshold (8.00 MeV) to teta = 1.1 MeV at 20 MeV. |
Submitted |
| 28-Ni-59 | JEFF30N2828_1.ASC | A. Hogenbirk JEF/DOC-911 |
April 2002 | Missing energy spectra for reactions MT=16 (n,2n), MT=22 (n,nα) and MT=28 (n,np). Proposed evaporation spectra by Sublet as follows (see file Ni-59.txt): - Spectrum for (n,2n) with U=8.9972 MeV, constant teta = 16 MeV from Eth = 9.15119 MeV to 20 MeV. - Spectrum for (n,nα) with U=6.0974 MeV and effective temperature varying from teta = 800 keV at Ethreshold (6.20176 MeV) to teta = 1.2 MeV at 20 MeV. - Spectrum for (n,np) U=8.595 MeV and effective temperature varying from teta = 900 keV at Ethreshold (8.74211 MeV) to teta = 1.1 MeV at 20 MeV. |
Submitted |
| 67-Ho-165 | JEFF30N6725_1.ASC | C. Dean | March 2003 | ENDF/B-VIr4 adopted. ENDF/B-VIr6 updated the neutron width of the 8.16eV resonance by a factor 10. Parameters are based on Mughabghab 1973. Correction in Mughabghab 1984.
Gives a significant reduction to the resonance integral. Diagnostic: Adopt ENDF/B-VIr6 (or correct the neutron width). This is an old evaluation. Watch for a new ENDF evaluation (ORELA)soon. Quick review by J Rowlands:- "I have looked in Mughabghab's latest evaluation (Feb 2003) and I see that he gives a resonance integral of 665 +/- 22. (I assume this corresponds to the lower value of the resonance width, although I am not certain about this). This compares with 761.4 in JEF-2.2 and 720.2 in the 1993 version of B-VI. It looks as though there might already have been a problem of a difference between JEF-2.2 and B-VI even before this correction was made to the 8.16 eV resonance, perhaps as a consequence of the use of random assignment of spins. However, I think that it is necessary to get hold of the resonance analysis (Masyanov+, Russia AE 73 673, Feb 1993 and Huffman ORELA PR/C 54 2051 Oct 1996), and the resonance integral measurements (de Corte+, Hungary? JRN 169 125 Mar 1993)." JEF2.2 used MLBW - policy decision. JEFF3 is back to SLBW - as evaluator intended. |
Submitted |
| 76-Os-nat | JEFF30N7600_1.ASC | A. Hogenbirk JEF/DOC-911 |
April 2002 | Problems in gamma production (decay scheme incorrect). The decay scheme was corrected by adding data for MF12,MT51 and MF14,MT51. These data were taken from NSR, the Nuclear Structure File (see file Os-nat.txt) | Submitted |
| 82-Pb-207 | JEFF30N8234_3.ASC | A. Hogenbirk JEF/DOC-911 |
April 2002 | Problems in gamma production (decay scheme incorrect). The decay scheme was corrected by adding data for MF12,MT53 and MF14,MT53. These data were taken from ENDF/B-VI.8 (see file Pb-207.txt). | Submitted |
| 92-U-238 | JEFF30N9237_4.ASC | C. Jouanne | 7 Feb. 2003 | The incident energy range of the delayed neutron spectrum (MF=5, MT=455) is different from the energy range of the corresponding multiplicity (MF=1, MT=455). Indeed, the delayed neutron multiplicity is given for incident neutron energy ranging from 1.E-5 eV to 20 MeV while the spectra of the 8 families are given for two incident energies 1.E+6 eV and 1.4E+7 eV (see file U-238.txt). | Submitted |
| 94-Pu-239 | JEFF30N9437_3.ASC | H. Wienke | April 2002 | Unresolved resonance range representation: line number 2151 1303 L=1, AJ=1.0 --> AMUN should be 2.0 in stead of 1.0 |
Submitted |
| 94-Pu-238 | JEFF30N9434_3.ASC | J-C. Sublet | April 2003 | Missing delayed neutron spectra. Proposal to adopt the spectra contained in ENDF/B-VI (see file Pu-238.txt). | Submitted |
| 94-Pu-242 | JEFF30N9446_2.ASC | J-C. Sublet | April 2003 | Missing delayed neutron spectra. Proposal to adopt the spectra contained in ENDF/B-VI (see file Pu-242.txt). | Submitted |
| 98-Cf-251 | JEFF30N9858_1.ASC | J-C. Sublet | April 2003 | Missing delayed neutron spectra. Proposal to adopt the spectra contained in ENDF/B-VI (see file Cf-251.txt). | Submitted |
| 96-Cm-242 | JEFF30N9636_2.ASC | J-C. Sublet | April 2003 | Missing delayed neutron spectra. Proposal to adopt the spectra contained in ENDF/B-VI (see file Cm-242.txt). | Submitted |
| Many | Many | J-C. Sublet | April 2003 | The following are proposed for source change (negative cross-section, forbidden by ENDF, ignored by NJOY-99 but accounted for by CALENDF-2002, that will lead to ever continuing
problems if not changed, thus I do not foresee any possibilities of new evaluations) Ni61 2834 ENDF/B-VI.3 ==> ENDF/B-6 r8 (ENDF/B-VI MOD 5 Revision, June 2000) Cd111 4840 ENDF/B-VI rel.4 ==> JENDL-3.3 Cd113 4846 ENDF/B-VI rel.4 ==> JENDL-3.3 Te128 5249 JEF-2.2 (JENDL-1) ==> JENDL-3.3 Gd157 6440 JENDL-3.2 ==> JENDL-3.3 Er162 6825 BROND-2.2 ==> JENDL-3.3 Lu176 7128 JEF-2.2 (ENDF/B-IV) ==> ENDF/B-6 r8 (ENDF/B-VI MOD 1 Revision, 1998) W182 7431 JENDL-3.2 ==> ENDF/B-6 r8 (ENDF/B-VI MOD 2 Revision, December 2000) Am241 9543 JEF-2.2 (KEDAK-4) ==> ENDF/B-6 r8 (P. G. Young and D. G. Madland, 1995) Cm244 9637 JEF-2.2 (KEDAK-4) ==> ENDF/B-6 r8 |
Submitted |
| 68-Er-170 | JEFF30N6846_1.ASC | C. Dean | 7 Dec. 2004 | The secondary energy distribution for (n,2n) has neutron spectra for each neutron. (MF=5, MT=16). The second neutron has the probability and corresponding emitted neutron distribution tabulated from an incident neutron energy of 7.30157 MeV whereas the threshold is at 7.3017 MeV. This is not seen by FIZCON but causes our monte Carlo processing to fail. | Submitted |
| 82-Pb-207 | JEFF30N8234_3.ASC | C. Dean (from R. MacFarlane) | 3 Dec. 2004 | Information from the NJOY user group stated that there are no gamma multiplicities (MF12/MT53). This is required according to procedure 12, section 12.2 of the ENDF-6 formats manual. This could be solved by insert MF12/MT53 and set the conditional probability (GP) to a small number (see file Pb207.txt) | Submitted |
*: Z-sym-A and state if not ground
**: File name as in the official CD-ROM
Last reviewed: 24 September 2010
