TENDL-2019

Known deficiencies

Last update: 18 December 2020

TENDL is a perfect library, which includes deficiencies. They can be related to the content as well as to the format. To inform users and to define what needs to be fixed, here is a list of reported problems.

  1. 06.12.2019, Issue in MF6/MT5 subsections using Kallbach-Mann systematics: for some of them a negative E' value is tabulated, for some others it is a duplicated E' value, in all cases it is always the last E' value. A list of concerned isotopes can be found here.
  2. The list of 65 targets contain mf3-mt18 where they should not, as sub-actinides (mf10-mt18 should you wish to but why if no nFY, n-spectra etc..). This would create havoc when used in transport simulation. this is in direct violation of the ENDF-6 formats manual: there are many strings attached to populating an mf3-mt18 that are not applied to those 65 targets. You are confused with populating an mf10-mt18. The certain mass you seem to refer to seem to be 81 when it should be 88.
  3. 31.01.2020, Another small impediment, that does not bother me as I always process single file at a time, but it will for the many that do not
    Identical MAT numbers in TENDL-2019
    99-Es-250M 9915 1451 5
    99-Es-255 9915 1451 5

    100-Fm-247M 9933 1451 5
    100-Fm-252 9933 1451 5

    100-Fm-250M 9936 1451 5
    100-Fm-255 9936 1451 5
  4. 10.02.2020, Look at the TENDL-2019 Pu238, 6 groups in 1 455, but 8 in 5 455, this is not compatible and why eight anyway?
  5. 14.03.2020, LSSF=1 in URR and that the total cross sections are not equal to the sums of the partial cross sections: Pu239, Sc44, As72, As74, Sr83, Te131M, U233, Es254
  6. 14.03.2020, The angular distributions given in tabular form are not well normalized for two nuclei : Cu65 and Pb208
  7. 14.03.2020, inconsistencies between the number of delayed neutron families given in MF1/MT455 and MF5/MT455: Ra223, Ra224, Ra225, Ra226, Th231, Pa229, Pa230, Np234, Np235, Pu237, Pu238, Pu246, Am240, Cm240, Cm244, Cm247, Bk245, Bk246, Bk247, Bk248, Cf246, Cf248, Cf253
  8. 29.05.2020, from J.Ch. Sublet and R. Cullen:
    The sampling is done on only 630 isotopes of TENDL-2019 moving them to GNDS form, 2/3 passed but
    177 fails with warning like

    inout/outAg107: WARNING: MF8 residual level energy = 0.0 for level 0 of ZA = 47107 not close to MF10's value = 93125.0 for MT = 4

    23 fails with self explanatory warning such as
    outAm240:MF1 MT455 claims 1 delayed neutron groups, but MF5 MT455 claims 6 groups
    for Bk245, Bk246, Bk247, Bk248, Cf246, Cf248, Cf253, Cm240, Cm244, Cm247, Np234, Np235, Pa229, Pa230, Pu237, Pu238, Pu246, Ra223, Ra224, Ra225, Ra226, Th231

    3 fails
    inout/outNi059: WARNING: MF33 MT42 covariance conversion failed with message "Not all covariance data converted, MF33 MT42"
    for Ni059, S032, Si030
  9. 07.12.2020, from J.Ch. Sublet
    For n-tendl-2019 induced particle, 211 files corrected over 630 targets
    1) For all of the metastable targets, the problem was with the QI value in MF=9 for inelastic scattering back to the ground state. The files originally had QI = 0, but since the final product is in the ground state QI should equal QM.

    exemple n-Ag110m.tendl

    < 1.175900+5 1.175900+5 47110 0 1 774735 9 4 2
    ---
    > 1.175900+5 0.000000+0 47110 0 1 774735 9 4 2

    2) WARNING: MF8 residual level energy = 0.0 for level 0 of ZA = 47107 not close to MF10's value = 93125.0 for MT = 4

    example n-Ag11.tendl
    < 0.000000+0 0.000000+0 47107 0 0 1472540 4 2
    ---
    > 0.000000+0-9.312500+4 47107 0 0 1472540 4 2

    3) for I133, Pm145 and Te132 there was a small mismatch between the excited state energy listed in MF=8 and the excitation energy computed from QM - QI in MF=10, they need to match

    example n-I133.tendl

    < 5.113000+4 4.800000+3 9 1 0 05343 8107 3
    ---
    > 5.113000+4 4.799000+3 9 1 0 05343 8107 3

    < 0.000000+0 0.000000+0 53133 0 1 74534310 4 2
    ---
    > 0.000000+0-3.120750+5 53133 0 1 74534310 4 2

    < 0.000000+0 0.000000+0 53133 0 0 1534340 4 2
    ---
    > 0.000000+0-3.120750+5 53133 0 0 1534340 4 2

    4) Cm243, Pu237 the issue in cases is that MF8 and 9 list production of the ground and 1st excited state in U235, but the excitation energy ELFS for the 1st excited state is listed as -2.14784e+9 eV! ELFS in MF=8 and QI in MF=9 updated to match the 76 eV state

    example n-Cm243.tendl

    < 9.223500+4 7.600000+1 9 1 0 09634 8 29 3
    ---
    > 9.223500+4-2.147484+9 9 1 0 09634 8 29 3

    < 1.141330+7 11413224.0 92235 1 1 259634 9 29 13
    ---
    > 1.141330+7 1.141330+7 92235 1 1 259634 9 29 13

    5) WARNING: MF1

    outAm240:MF1 MT455 claims 1 delayed neutron groups, but MF5 MT455 claims 6 groups
    outBk245:MF1 MT455 claims 1 delayed neutron groups, but MF5 MT455 claims 6 groups
    outBk246:MF1 MT455 claims 1 delayed neutron groups, but MF5 MT455 claims 6 groups
    outBk247:MF1 MT455 claims 1 delayed neutron groups, but MF5 MT455 claims 6 groups
    outBk248:MF1 MT455 claims 1 delayed neutron groups, but MF5 MT455 claims 6 groups
    outCf246:MF1 MT455 claims 1 delayed neutron groups, but MF5 MT455 claims 6 groups
    outCf248:MF1 MT455 claims 1 delayed neutron groups, but MF5 MT455 claims 6 groups
    outCf253:MF1 MT455 claims 1 delayed neutron groups, but MF5 MT455 claims 6 groups
    outCm240:MF1 MT455 claims 1 delayed neutron groups, but MF5 MT455 claims 6 groups
    outCm244:MF1 MT455 claims 1 delayed neutron groups, but MF5 MT455 claims 6 groups
    outCm247:MF1 MT455 claims 1 delayed neutron groups, but MF5 MT455 claims 6 groups
    outNp234:MF1 MT455 claims 1 delayed neutron groups, but MF5 MT455 claims 6 groups
    outNp235:MF1 MT455 claims 1 delayed neutron groups, but MF5 MT455 claims 6 groups
    outPa229:MF1 MT455 claims 1 delayed neutron groups, but MF5 MT455 claims 6 groups
    outPa230:MF1 MT455 claims 1 delayed neutron groups, but MF5 MT455 claims 6 groups
    outPu237:MF1 MT455 claims 1 delayed neutron groups, but MF5 MT455 claims 6 groups
    outPu238:MF1 MT455 claims 6 delayed neutron groups, but MF5 MT455 claims 8 groups
    outPu246:MF1 MT455 claims 1 delayed neutron groups, but MF5 MT455 claims 6 groups
    outRa223:MF1 MT455 claims 1 delayed neutron groups, but MF5 MT455 claims 6 groups
    outRa224:MF1 MT455 claims 1 delayed neutron groups, but MF5 MT455 claims 6 groups
    outRa225:MF1 MT455 claims 1 delayed neutron groups, but MF5 MT455 claims 6 groups
    outRa226:MF1 MT455 claims 1 delayed neutron groups, but MF5 MT455 claims 6 groups
    outTh231:MF1 MT455 claims 1 delayed neutron groups, but MF5 MT455 claims 6 groups

    example n-Am240.tendl

    < 0.000000+0 0.000000+0 0 0 6 09540 1455 2
    < 1.333800-2 3.079800-2 1.130500-1 2.867700-1 8.653600-1 2.643000+09543 1455 3
    ---
    > 0.000000+0 0.000000+0 0 0 1 09540 1455 2
    > 1.000000+1 9540 1455 3
  10. 07.12.2020, from J.Ch. Sublet
    For a.tendl-2019 induced particles, 50 corrected files over 282 stable targets

    1) Exception: data not in ascending order at index 111 and 112

    example a-O018.tendl

    < 6.270767+7 1.00000-19 9.981280-1 6.313571+7 1.00000-19 9.981280-1 831 6 5 2864
    ---
    > 6.270767+7 1.00000-19 9.981280-1 6.313569+7 1.00000-19 9.981280-1 831 6 5 2864

    2) WARNING: MF8 residual level energy = 0.0 for level 0 of ZA = 47107 not close to MF10's value = 93125.0 for MT = 107

    example a-Ag107.tendl

    < 0.000000+0-9.312500+4 47107 0 1 23472510107 2
    ---
    > 0.000000+0 0.000000+0 47107 0 1 23472510107 2

    < 0.000000+0-9.312500+4 47107 0 0 1472540107 2
    ---
    > 0.000000+0 0.000000+0 47107 0 0 1472540107 2

    3) MF8 residual level energy = -2147484000.0 for level 0 of ZA = 92235 not close to MF10's value = 0.0 for MT = 4

    example a-Th232.tendl

    < 9.223500+4-2.147484+9 10 1 0 09040 8 4 3
    ---
    > 9.223500+4 1.790000+5 10 1 0 09040 8 4 3

    < -1.111850+7-1.111850+7 92235 1 1 17904010 4 10
    ---
    > -1.111850+7-1.129750+7 92235 1 1 17904010 4 10

    < -1.111850+7-1.111850+7 92235 1 0 1904040 4 10
    ---
    > -1.111850+7-1.129750+7 92235 1 0 1904040 4 10
  11. 18.12.2020, from J.Ch. Sublet
    Negative or duplicated energies in Kalbach-Mann: in a number of isotopes
credit here