JEF-2.2 JEFF-3.0 JEFF-3.1 JEFF-3.1.1 JEFF-β Proposals Submit new feedback

Feedback on JEFF-3.1


Feedback on the Neutron Files

Nuclide* File name** From Date Comment Status
8-O- 16 JEFF31N0825_0.ASC Noguere 11 December 2007 Correction of 16O(n,alpha) cross section below 6 MeV with the help of new differential data (See JEFDOC-1207 for details and new file JEFF31N0825_3.ASC). Accepted. Updated in JEFF-3.1.1
11-Na- 23 JEFF31N1125_0.ASC D. Brown 28 November 2005 MF=4.The data is given in the wrong frame as LCT = 2. Submitted
12-Mg- 24,25,26 JEFF31N1225(28,31)_0.ASC W. Haeck 14 June 2006 Large discrepancies compare with the elemental version in JEFF3.0 (JEF/DOC-1125 and JEF/DOC-1141). Major differences for angular distributions in different levels of inelastic scattering (MT 51 and 52). Submitted
17-Cl- 35 JEFF31N1725_0.ASC Lopez-Aldama 21 June 2005 File 14 (MF=14) the NK value should be equal to the NK in file 12 and 13. Accepted. Updated in JEFF-3.1.1
17-Cl- 37 JEFF31N1731_0.ASC NEA 3 June 2005 The number of lines in MF3, MT1,MT2 and MT102 is wrong in the MF1, MT451 list. The number of lines should be 4189, instead of 2043. Accepted and updated on final version
20-Ca- 46 JEFF31N2043_0.ASC V. Sinitsa and M. Pescarini 24 March 2006 The total cross section (MF3,MT1) below 1 keV is zero, while the capture cross section is not zero. The total (MT1) is not the sum of the cross sections. M. Pescarini is proposing the following file: JEFF31N2043_2.ASC. Accepted. Updated in JEFF-3.1.1
22-Ti- 50 JEFF31N2237_0.ASC E. Dorval 31 October 2006 Neutron capture cross section data, MT=102, is wrong. It is not from isotope Ti-50. but from natural Titanium. Submitted
22-Ti- all Ti isotopes D. Brown 28 November 2005 MF=6. In MT102 MF6 (n,gamma), the energy-angle distributions for the outgoing gammas from the continuum. The interpolation table has all E' set to 0 for all entries. Submitted
22-Ti-46,49 C. Dean 12 March 2007 Elastic cross section negative above 18.797MeV Revision is needed before updating JEFF3.2 Submitted
24-Cr- 52 JEFF31N2431_0.ASC O. Bouland, M. Mattes 31 January 2006 Corrections on MF=4, MT=2: 1/ The file can not be processed by GROUPR of NJOY because of the very high number of energy points (23825 instead of max 2000 for the ENDF format)--> number of points decreased down to 1394. 2/ The GROUPR module of NJOY can not process the section MF4/MT2 because of redundant energy points in the file. This is due to the option 'conversion of data fields to standard form' in the STANEF code which forces the file MF4/MT2 output to adopt the ENDF format with 6 significant digits, rather than 7, for the energy values. --> section MF4/MT2 recreated correctly. JEFF31N2431_1.ASC Accepted. Updated in JEFF-3.1.1
26-Fe- 56 JEFF31N2631_0.ASC D. Brown 28 November 2005 There is a mismatch between the level excitations in the MF3 data and the MF12 data. The file proposed is JEFF31N2631_1.ASC Accepted. Updated in JEFF-3.1.1
26-Fe- 56 JEFF31N2631_0.ASC O. Cabellos 20 November 2006 The processing of the file for radiation damage calculations MT=444 has a discontinuity above 20 MeV. Is the discontinuity caused by the lack of recoil information above 20 MeV? To be discussed within the Working Group
26-Fe- 57 JEFF31N2634_0.ASC A. Trkov 26 August 2005 Inconsistency between the total MT1 and the sum of the partials. Submitted
26-Fe- 58 JEFF31N2637_0.ASC A. Trkov 4 May 2006 Correction total and non-elastic cross section JEFF31TN2637_1.ASC (based on JEFF-3.1T starter file, October 2004). Accepted
27-Co- 58 JEFF31N2722_0.ASC O. Cabellos 4 October 2005 Capture (n,gamma), discontinuity for the resonances Submitted
40-Zr- 91
40-Zr- 96
JEFF31N4028_0.ASC
JEFF31N4043_0.ASC
Noguere 11 December 2007 correction of the resonances at 292.4 eV for the Zr-91 and 301.1 eV for the Zr-96 (See JEFDOC-1208 for details and new files JEFF31N4028_1.ASC and JEFF31N4043_1.ASC. Accepted. Updated in JEFF-3.1.1
40-Zr- 93 JEFF31N4034_0.ASC Bernard, Noguere, Santamarina 11 August 2008 Recommended fission product cross sections to improve the LWR cycle length prediction as explained in JEF/DOC-1238. The file proposed is JEFF31N4034_1.ASC Accepted. Updated in JEFF-3.1.1
42-Mo- 92 JEFF31N4225_0.ASC O. Kalchenko 18 June 2008 Processing with NJOY 99.81 (and 99.90) the code stops immediately. Evaluation is from JENDL 3.2 (also exhibits the same effect). Submitted
42-Mo- 95 JEFF31N4234_0.ASC D. Brown 5 November 2006 Flag on first 2 tables of Legendre coeffs set to 0, it should be set to 1 The file proposed is JEFF31N4234_1.ASC Accepted. Updated in JEFF-3.1.1
42-Mo- 98 JEFF31N4243_0.ASC O. Kalchenko 18 June 2008 Processing with NJOY 99.81 (and 99.90) the code stops immediately. Evaluation is from JENDL 3.2 (also exhibits the same effect). The file from JENDL 3.0 library is valid for MCNP operation. Submitted
43-Tc- 99 JEFF31N4331_0.ASC Bernard, Noguere, Santamarina 11 August 2008 Recommended fission product cross sections to improve the LWR cycle length prediction as explained in JEF/DOC-1238. The file proposed is JEFF31N4331_1.ASC Accepted. Updated in JEFF-3.1.1
44-Ru-103 JEFF31N4446_0.ASC Bernard, Noguere, Santamarina 11 August 2008 Recommended fission product cross sections to improve the LWR cycle length prediction as explained in JEF/DOC-1238. The file proposed is JEFF31N4446_1.ASC Accepted. Updated in JEFF-3.1.1
45-Rh-103 JEFF31N4525_0.ASC Dupont 25 September 2006 Corrected energy-angle distributions of the reaction products for MF6/MT5 for JEFF-3.2, available for preliminary testing (See file JEFF31N4525_1.ASC). Accepted. Updated in JEFF-3.1.1
52-Te-127m JEFF31N5247_0.ASC F. Leszczynski 7 February 2007 Huge difference observed in thermal capture value: JEFF-3.1=JEF-2,.2= 9.4 barn, ENDF/B-VII=JENDL3.3: 3380 barn Submitted
53-I-127 JEFF31N5325_0.ASC Dupont 25 September 2006 Corrected energy-angle distributions of the reaction products for MF6/MT5 for JEFF-3.2, available for preliminary testing (See file JEFF31N5325_1.ASC). Accepted. Updated in JEFF-3.1.1
53-I-129 JEFF31N5331_0.ASC Dupont 25 September 2006 Corrected energy-angle distributions of the reaction products for MF6/MT5 for JEFF-3.2, available for preliminary testing (See file JEFF31N5331_1.ASC). Accepted. Updated in JEFF-3.1.1
55-Cs-135 JEFF31N5531_0.ASC Bernard, Noguere, Santamarina 11 August 2008 Recommended fission product cross sections to improve the LWR cycle length prediction as explained in JEF/DOC-1238. The file proposed is JEFF31N5531_1.ASC Accepted. Updated in JEFF-3.1.1
61-Pm-147 JEFF31N6149_0.ASC Bernard, Noguere, Santamarina 11 August 2008 Recommended fission product cross sections to improve the LWR cycle length prediction as explained in JEF/DOC-1238. The file proposed is JEFF31N6149_1.ASC Accepted. Updated in JEFF-3.1.1
61-Pm-148(gs) JEFF31N6152_0.ASC Bernard, Noguere, Santamarina 11 August 2008 Recommended fission product cross sections to improve the LWR cycle length prediction as explained in JEF/DOC-1238. The file proposed is JEFF31N6152_1.ASC Accepted. Updated in JEFF-3.1.1
63-Eu-151 JEFF31N6325_0.ASC D. Brown 28 November 2005 MF=12. Energies out of order. Submitted
63-Eu-154 JEFF31N6334_0.ASC Bernard, Noguere, Santamarina 11 August 2008 Recommended fission product cross sections to improve the LWR cycle length prediction as explained in JEF/DOC-1238. The file proposed is JEFF31N6334_1.ASC Accepted. Updated in JEFF-3.1.1
64-Gd-155 JEFF31N6434_0.ASC C. Dean July 2009 The MeV/capture for Gd-155 in JEFF3.1 looks very wrong. The value in the file on record labelled 6434 3102 is 1.89MeV. The value in Mughabghab's atlas is 8.53639 +/- 0.00007 MeV. JEFF-β (Sublet) is using 8.536. Submitted
77-Ir-191 JEFF31N7725_0.ASC Lopez-Aldama 21 June 2005 File 14 (MF=14) the NK value should be equal to the NK in file 12 and 13 (JEFF31N7725_1.ASC). Accepted. Updated in JEFF-3.1.1
77-Ir-191 JEFF31N7725_1.ASC D. Brown 5 November 2006 File 12 (MF=12) The number of gammas is incorrect, it is listed as 153, but should be 152. The file proposed is: JEFF31N7725_2.ASC). Submitted
77-Ir-191 JEFF31N7725_2.ASC M. Becker 30 June 2008 Processing JEFF31N7725_2.ASC with NJOY99.259 results in a reading error by module MODER. Changing NK equal 152 back to 153 makes the file readable by NJOY, but this would be contrary to the change of D. Brown. Submitted
77-Ir-193 JEFF31N7731_0.ASC Lopez-Aldama 21 June 2005 File 14 (MF=14) the NK value should be equal to the NK in file 12 and 13 (JEFF31N7731_1.ASC). Accepted. Updated in JEFF-3.1.1
77-Ir-193 JEFF31N7731_0.ASC D. Brown 5 November 2006 File 12:1) MF=12, MT=52 Added file so that can correctly deexcite higher levels. It is more or less a copy of the MT=51 file but the level energy matches that in MF=3, MT=52.
2) MF=12, MT=102, Lowered number of lines specified in header by one to match the actual number in the file.
3) MF=1, MT=451 Update to reflect the addition of the new MF=12,MT=52 file.
The file proposed isJEFF31N7731_2.ASC)
Submitted
77-Ir-193 JEFF31N7731_2.ASC M. Becker 30 June 2008 Processing JEFF31N7731_2.ASC with NJOY99.259 results in "***error in moder*** should have found send card". This error does not appear in JEFF31N7731_1.ASC. Submitted
81-Tl JEFF31N8100_0.ASC E. Dupont and O. Cabellos 13 November 2006 Different results using NJOY and PREPRO, MF=3 MT=102. A change in the interpolation law (from lin-lin to log-log) will improve the results (PREPRO treatment). E. Dupont have proposed the following file JEFF31N8100_1.ASC and the documentation of the modifications proposed memo_natTl.pdf Submitted
83-Bi-209 JEFF31N8325_0.ASC W. Haeck 14 June 2006 Problem in the secondary photon distribution mt=849, continuum spectrum at incident energy equal to 200 eV is zero. Haeck proposed to modify the existing zero values in the continuum spectra for the incident energy points 1e-5eV, 0.0253 eV and 200 eV a small value such as 1e-25. The proposed file is: JEFF31N8325_1.ASC Accepted
92-U-233 JEFF31N9222_0.ASC Dean 24 May 2005 The decay constant for the 4th time group is a factor 10 too low 1.330420-2 instead of 1.330420-1 (JEFF31N9222_1.ASC). Accepted and updated on final version
92-U-233 JEFF31N9222_1.ASC J-C Sublet 31 March 2008 MF-5 MT-16,17,91 Q-value, threshold and spectra modified MF-5 MT-20,21,38 threshold spectra reshuffled. A strict interpretation of the original spectra would lead to the generation of too many neutron below 0.2 eV "U-234, U-233 energy distribution of secondary particles" jefdoc-1217 JEFF31N9222_2.ASC). Submitted
92-U-233 JEFF31N9222_2.ASC J-C Sublet 16 May 2008 Correction of the JEFF31N9222_2.ASC file so that it includes previous correction (JEFF31N9222_1.ASC, see above) by C Dean (the decay constant for the 4th time group is a factor 10 too low 1.330420-2 instead of 1.330420-1). JEFF31N9222_3.ASC). Accepted. Updated in JEFF-3.1.1
92-U-234 JEFF31N9225_0.ASC B. Naranjo and NEA 28 June 2005 The number of lines in MF2, MT151 is 489. The value 498 is wrongly stated in MF1, MT451. JEFF31N9225_0.ASC). Accepted and updated on final version
92-U-234 JEFF31N9225_0.ASC J-C Sublet 31 March 2008 MF-5 MT-16,17,91 Q-value, threshold and spectra modified MF-5 MT-20,21,38 threshold spectra reshuffled. A strict interpretation of the original spectra would lead to the generation of too many neutron below 0.2 eV "U-234, U-233 energy distribution of secondary particles" jefdoc-1217 JEFF31N9225_1.ASC). Submitted
93-Np-237 JEFF31N9437_0.ASC Bernard, Santamarina May 2006
JEF/DOC-1144
Both integral and differential data indicate an underestimation of the capture in the thermal region. Accepted. Updated in JEFF-3.1.1
94-Pu-239 JEFF31N9437_0.ASC Dean 09 June 2005 Upper limit unresolved resonance range (two solutions proposed by C. Dean for the evaluators to decide between, based on validation and comparisons) JEFF31N9437_1.ASC and JEFF31N9437_2.ASC). Superseded by the 14 June 2005 proposal
94-Pu-239 JEFF31N9437_0.ASC Dupont, Dean 14 June 2005 Upper limit unresolved resonance range, the evaluation selected is: JEFF31N9437_3.ASC a report to summarize the proposals. Submitted
94-Pu-239 JEFF31N9437_0.ASC Bernard, Santamarina 11 November 2006 The thermal region has been reviewed (see JEF/DOC-1158) and the evaluation proposed is: JEFF31N9437_4.ASC Accepted. Updated in JEFF-3.1.1
94-Pu-239 JEFF31N9437_0.ASC Dean 01 Sept 2008 There are non ascending energy points in the prompt and total NU-BAR tabulations for Pu-239. The JEFF3.1 file has multiple points at 6.50000E+02, 5.65500E+06 and 1.26520E+07. In all cases the same value of Nu is used. Note, these points were already present in JEFF-3.0 Submitted
94-Pu-240 JEFF31N9440_0.ASC D. Brown 28 November 2005 MF=4.The data is given in the wrong frame as LCT = 2. Submitted
95-Am-241 JEFF31N9543_0.ASC O. Bouland 16 November 2006 A/During the revision of the resolved resonance parameters for JEFF31, the fission widths of the 4th energy lowest resonances were not updated accordingly to the new neutron width values. This is now done with preserving the capture trends.
B/ For JEFF31, the un-assigned spins of the old Froehner's evaluation were assigned on statistical distribution laws. Following the new branching ratio information and the probable spins (see JEF/DOC-1086 , the spins of the bound and of the 4th lowest resonances were fixed.
C/ In the Branching Ratio to AM241m file (MF=9, MT=102), the LFS flag (Level number of the final state) was erroneously set to 2 which corresponds to the second metastable state and not the the second excited state. LFS corrected to 1.
A new file including the corrections addressed above will be submitted to the NEA
Submitted
98-Cf-249 JEFF31N9852_0.ASC Koning 20 April 2009 The decay constant for the 4th time group is a factor 10 too low 1.330420-2 instead of 1.330420-1JEFF31N9852_1.ASC). Submitted

Feedback on the Thermal Scattering Files

Nuclide* File name** From Date Comment Status
H(ZrH) JEFF31TS0007_0.ASC NEA 30 June 2005 Format error: The ZA number, 1.007000+3 changed to 1.070000+2 in MF/MT 1/451,7/2 and 7/4. Number of lines in MF/MT 1/451 corrected to 27 lines and for 7/4 corrected to 43116 lines JEFF31TS0007_1.ASC). Accepted and updated on JEFF Web page
H(CaH2) JEFF31TS0008_0.ASC NEA 30 June 2005 Format error: The ZA number, 1.001000+3 changed to 1.080000+2 in MF/MT 1/451, 7/2 and 7/4, and number of lines for 1/451 corrected to 73 lines and for 7/4 corrected to 16210 lines JEFF31TS0008_1.ASC). Accepted and updated on JEFF Web page
D(D2O) JEFF31TS0011_0.ASC NEA 30 June 2005 Format error: Number of lines in 1/451 corrected to 25 lines and for 7/4 corrected to 69538 lines JEFF31TS0011_1.ASC). Accepted and updated on JEFF Web page
Ca(CaH2) JEFF31TS0059_0.ASC NEA 30 June 2005 Format error: The ZA number, 2.000000+3 changed to 1.590000+2 in MF/MT 1/451, 7/2 and 7/4 JEFF31TS0059_1.ASC). Accepted and updated on JEFF web page
Be JEFF31TS0026_1.ASC Ramamoorthy, Hebert via Santamarina 4 January 2011 Format error: blank character in the exponent (e.g. 1.26000+ 2, 7.00000+ 2, 1.00000- 1, etc.). A corrected file is proposed on the JEFF-β page. Submitted

Feedback on the Radioactive Decay Data Files

Nuclide* File name** From Date Comment Status
92-U-238 JEFF31RDD.ASC A. Nichols 4 July 2005 ERROR: U-238 BF(sf) should be 5.46E-7. The original value of 5.46E-5 is an error, and was an aberration at the time of the re-evaluation of the decay data in January 2000. Accepted. Updated in JEFF-3.1.1
various above Z=70 JEFF31RDD.ASC O. Cabellos and M. Kellett 20 October 2005 Wrong natural abundance data for nuclei above Z=70 added as the final line in the comments section: MF=1, MT=451. Accepted. Updated in JEFF-3.1.1
89-Sr JEFF31RDD.ASC O. Bersillon 2 January 2006 The uncertainty on the mean beta energy for the 89-Sr (MAT=964) decay given in the JEFF-3.1 RDD (233.8 keV) is not correct. It should be 1.0 keV! Accepted. Updated in JEFF-3.1.1
95-Am-242 JEFF31RDD.ASC T. D. Huynh 3 March 2006 Am-242M and Am-242N (Mat. 3607 and 3608) have both state numbers LIS=2 while the isomeric state is LISO=1 and 2 respectively. Accepted. Updated in JEFF-3.1.1
  JEFF31RDD.ASC Walter Josephson 19 September 2007 AWR values in JEFF-3.1 RDD converted from NUBASE atomic masses are inaccurate.This issue will be addressed in a future update. Accepted. Updated in JEFF-3.1.1

Feedback on the Neutron induced Fission Yields Data Files

Nuclide* File name** From Date Comment Status
92-U-235 JEFF31NFY.ASC Mills and Vidal 1 November 2007 Incorrect value in file MF=8. Vidal reported an inconsistency for Cs137 between the cumulative and independent yields for the thermal fission of U235.The reason was found to be an incorrect independent yield of I137. The value in the file was 2.9508E-2 instead of 3.0976E-2. This was the result of an incorrect unit conversion in the modification of UKFY3.6 to produce UKFY3.6A. A corrected file is proposed JEFF31NFY-U235-modified.ASC Corrected and available in JEFF-3.1.1

Feedback on the Activation Files

Nuclide* File name** From Date Comment Status
Many JEFF31A.ASC A. Sedlak 4 November 2009 Product nuclei (ZAP) incorrect in MF=8 for MT=41,112 Submitted (EAF-2005 is correct)
Many JEFF31A.ASC A. Konobeyev 16 August 2007 Product nuclei (ZAP) incorrect, E.G. Ni-56 (MAT=2819), MF=10, MT=112 Submitted
(Kr-78, Kr-80, Kr-82, Zr-86, Te-120, Xe-133, Ce-134, Pm-151, Os-191, Pt-194, Pt-196, Pt-198, Tl-205, Np-239, Es-255) JEFF31A.ASC A. Konobeyev 14 August 2007 Interpolation ranges are incorrect for MF=9 MT=102 Submitted
41-Nb-93 JEFF31A.ASC A. Konobeyev 15 Nov 2006 MF=10: Single measurement of the cross-section available at 17.01 - 19.21 MeV [Qaim et al, Phys.Rev C34 (1986) pp.489-492] seems to be ignored in the evaluation. The difference between evaluated cross-section and measured data is large. The evaluated cross-section could be easy corrected, if no doubts are found in Qaim et al measurements. Submitted
Many (mainly fissile isotopes.) JEFF31A.ASC A. Rineiski 30 Jan 2006 Q-values for (n,f) reactions (MF3,MT18) are wrong for some isotopes, e.g. Pu-240. Submitted

The status column identify the feedback status:

*: Z-sym-A and state if not ground, or compound
**: File name as in the official CD-ROM

Last update: 4 January 2011