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    Documentation on the LA150U Library

    Released: 1996-07-25

    The 150 MeV photonuclear library designated LA150U was released on July 26, 2000 and updated on October 18, 2001. There are data tables for 13 isotopes in the library. Twelve are based on recent T-16 work done as part of a coordinated research project for the IAEA [1,2]. These evaluations were created by Mark Chadwick and Phil Young using the GNASH modeling code [3]. They include reaction cross sections and emission distributions for all significant channels and extend up to 150 MeV incident photon energy. The 13th isotope (H-2) was added in 2001. This evaluation was created by Gerry Hale of T-16 using the R-matrix analysis code EDA and includes the photodisintegration cross section with the neutron and proton emission distributions for incident photon energies up to 30 MeV. All of these evaluations were processed using NJOY99 version 5 or later.

    The isotopes and ZAIDs on LA150U are as follows: (all ZAIDs use the ID .24u)

    IsotopeZAID
    H-21002.24u
    C-126012.24u
    O-168016.24u
    Al-2713027.24u
    Si-2814028.24u
    Ca-4020040.24u
    Fe-5626056.24u
    Cu-6329063.24u
    Ta-18173181.24u
    W-18474184.24u
    Pb-20682206.24u
    Pb-20782207.24u
    Pb-20882208.24u

    References

    1. P. Oblozinski, ed. "Handbook of Photonuclear Data for Applications." IAEA-TECDOC-1178. International Atomic Energy Association: Vienna, Austria, 2000.

    2. IAEA Photonuclear Data Library

    3. M. B. Chadwick, P. G. Young, R. E. MacFarlane, M. C. White and R. C. Little. "Photonuclear Physics in Radiation Transport: I. Cross Sections and Spectra." Nuclear Science and Engineering. Vol. 144, Issue 2, pages 157–173.

    Downloads

    LA150U can be downloaded either as a zip file or as a compressed tarball

    • la150u.zip (sha512 dc05d403922190b2069192e6773d0eccb562d28f2aef0cc6ab2050ff26058f12a19d5f30701700754b5398683e6aa24cea2fd49adf62e133598c10d2d934914e)
    • la150u.tgz (sha512 b0a106f579108741f11eb78da7069a94a315dfd9ce570626d84443218245b6364adb410c651a41620bf98e3992994c0fc3234f3f83281a6ee06766598a397f76)

    If further information is required contact a member of the Data Team by e-mail at nucldata@lanl.gov