Commit 387985b0 by Batson Iii

### Docs minus Keno

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 ... @@ -848,7 +848,7 @@ The limits on the above integral correspond to: ... @@ -848,7 +848,7 @@ The limits on the above integral correspond to: \alpha_{\mathrm{L}}\left(\mathrm{E}^{\prime}, \mathrm{E}\right)=\alpha\left(\mathrm{E}^{\prime}, \mathrm{E}, \mu_{0}=-1\right) \quad \text { and } \quad \alpha_{\mathrm{H}}\left(\mathrm{E}^{\prime}, \mathrm{E}\right)=\alpha\left(\mathrm{E}^{\prime}, \mathrm{E}, \mu_{0}=1\right) . \alpha_{\mathrm{L}}\left(\mathrm{E}^{\prime}, \mathrm{E}\right)=\alpha\left(\mathrm{E}^{\prime}, \mathrm{E}, \mu_{0}=-1\right) \quad \text { and } \quad \alpha_{\mathrm{H}}\left(\mathrm{E}^{\prime}, \mathrm{E}\right)=\alpha\left(\mathrm{E}^{\prime}, \mathrm{E}, \mu_{0}=1\right) . The alpha moments for n > 0 can be evaluated very efficiently using a The alpha moments for n > 0 can be evaluated very efficiently using a recursive relation :cite:illiams_submoment_2000: recursive relation :cite:williams_submoment_2000: .. math:: .. math:: ... ...
 .. _11-3: COMPOZ Data Guide ================= *J. R. Knight* [1]_ *and L. M. Petrie* ABSTRACT The COMPOZ program used to create the Standard Composition Library is described. Of particular importance is documentation of the COMPOZ input data file structure. Knowledge of the file structure allows users to edit the data file and subsequently create their own site-specific composition library. ACKNOWLEDGMENT This work was originally funded by the Office of Nuclear Material Safety and Safeguards of the U.S. Nuclear Regulatory Commission. .. _11-3-1: Introduction ------------ COMPOZ is the program that creates (writes) the SCALE Standard Composition Library. Data are input in free form. A text data file containing the input to COMPOZ (and the Standard Composition Library) is available with the SCALE system. Execution of COMPOZ using this data file creates the Standard Composition Library currently available with the SCALE package. This section provides documentation of the data file structure. Knowledge of the data file structure allows users to edit the data file and subsequently create their own site-specific or user-specific composition library. COMPOZ is intended to create or make *permanent* *changes* to and/or to print the composition library and should not be used for any other purpose. To avoid confusion with the Standard Composition Library provided with SCALE, it is strongly recommended that only *new* keywords and compositions be used in any site-specific or user-specific library. .. _11-3-2: Input Data Description ---------------------- COMPOZ input data are entered in free form. All data must be followed by at least one blank. The COMPOZ input data file contains *five* data records or blocks: 1. COMPOZ mode flag selects whether a new standard composition library will be created, or an old standard composition library will be listed. Only if a new library is being created are the following data records entered. A new library is created with a filename of “xfile089”. If an old library is being dumped as an ASCII file, it will be named “_sclN…N” where N…N is an 18 digit sequence number that is incremented starting from 0 for each library dumped in the same directory. 2. The header record contains the library identification, a set of parameters describing the size of the library, and library title with 80 characters per line. 3. The standard composition table contains the name, theoretical density, number of elements, and other information about each standard composition. Individual nuclides, mixtures, and compounds are all included in the table. 4. The nuclide information table contains the nuclide identification number, atomic mass, and resonance energy cross sections. 5. The isotopic distribution table contains the nuclide identification number and the atom percent of each isotope used in specifying the default enrichment. .. note:: For executing COMPOZ via SCALE, an =COMPOZ is required in the first eight columns of a record preceding the mode flag, and an END is required in the first three columns of a record inserted after the last data record. If debug output is desired, then use =COMPOZ PRINTDEBUG to execute compoz. .. _11-3-2-1: COMPOZ mode selector ~~~~~~~~~~~~~~~~~~~~ 1. LGEN = 0 – create a new library and list it 1 – list an existing library >1 – list an existing library and write an ASCII input file. If LGEN is 0, then input the following data to create a new standard composition library. .. _11-3-2-2: Library heading information ~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1. IDT – library identification number 2. TITLE – 1 line of 80 characters used to identify the library .. _11-3-2-3: Standard composition table ~~~~~~~~~~~~~~~~~~~~~~~~~~ 1. SCID – Composition name, maximum of 12 characters. 2. ROTH – Theoretical density, gm/cm\ :sup:3. 3. ICP – 0 for a mixture, 1 for a compound. 4. NCZA – Element or nuclide ID 5. ATPM – Weight percent if ICP = 0. Number of atoms per molecule if ICP = 1. 6. END – Keyword END to terminate this standard composition. For each composition, items 4 and 5 are repeated until all components of the composition are described. Items 1 through 6 are entered in a similar fashion for all compositions. After all the standard compositions are read, terminate the table with an END [label], where [label] represents an optional label. .. _11-3-2-4: Nuclide information table ~~~~~~~~~~~~~~~~~~~~~~~~~ 1. NZA – Nuclide ID. This should be the mass number + 1000 \* the atomic number. 2. AM – Atomic mass, C-12 scale. 3. SIGS – Resonance energy scattering cross section, barns. 4. SIGT – Resonance energy total cross section, barns. 5. NU*SIGF – Resonance energy nu*sigf cross section, barns. The resonance energy cross sections are averaged over the appropriate energy range for the nuclide. Items 1–5 are repeated for all nuclides. After all nuclides are entered, terminate the nuclide table with an END [label]. .. _11-3-2-5: Isotopic distribution table ~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1. NZN – 1000 \* atomic number of variable isotope elements. 2. ISZA – Isotope ID. 3. ABWP – Default abundance, atom percent. 4. END – Keyword END to terminate this isotopic specification. The default abundance is generally the naturally occurring abundance. For each element, items 2 and 3 are repeated until 100% total abundance is described, making a set for this element. The next element is described in the same fashion in the next set, etc. After all isotopic distributions are entered, terminate the isotopic distribution table with an END [label]. .. _11-3-3: Sample Problem -------------- The following sample problem first lists the SCALE standard composition library, then creates a new, short standard composition library, then lists and outputs an ASCII copy of this new library, and finally copies this new copy back to the output directory. .. code:: scale :class: long =compoz ' print the current standard composition library 1 end =compoz ' create a new standard composition library 0 ' library identification number 101 ' library title scale-X standard composition library ' standard composition table ' all nuclide IDs here must be in the nuclide table h 1.0000 0 1001 100.0000 end o 1.0000 0 8016 100.0000 end u 19.0500 0 92000 100.0000 end h2o 0.9982 1 1001 2 8016 1 end uo2 10.9600 1 92000 1 8016 2 end ' end of standard composition table end stdcmp ' nuclide table ' ID AWR SigmaS SigmaT nuSigmaF 1001 1.00783 20.38087 20.38782 0.00000 1002 2.01410 3.39486 3.39487 0.00000 8016 15.99491 3.88696 3.88696 0.00000 8017 16.99913 3.74000 3.74501 0.00000 8018 17.99916 3.79000 3.79000 0.00000 92233 233.03964 12.46693 37.62292 100.78482 92234 234.04095 12.18716 16.09542 2.66969 92235 235.04393 11.90249 35.22383 90.23152 92236 236.04556 12.27302 14.93351 1.33334 92237 237.04874 14.24581 24.68619 1.93695 92238 238.05080 12.32636 14.62708 0.65970 ' end of nuclide table end nuclides ' isotope distribution table ' all nuclide IDs here must be in the nuclide table 1000 1001 99.9885 1002 0.0115 end 8000 8016 99.7570 8017 0.0380 8018 0.2050 end 92000 92234 0.0054 92235 0.7204 92238 99.2742 end ' end of isotope distribution table end isotopes ' end of compoz input end =compoz ' print and create an ASCII copy of the current standard composition library ' (created in the previous step) 2 end =shell # copy the ASCII copy back to the output directory copy_file _scl000000000000000000 \${OUTBASE}.stdcmplib end .. [1] Formerly with Oak Ridge National Laboratory.
 .. _10-2a: COVLIB Appendix A: Cross section plots for U, Pu, TH, B, H, He, and Gd Nuclides =============================================================================== Plots of cross section differences between various evaluations are shown below. The legend below applies to all plots shown in this appendix. .. image:: figs/COVLIBAppA/img1.png :align: center :width: 500 .. _fig10-2a-1: .. figure:: figs/COVLIBAppA/fig1.png :align: center :width: 600 :sup:239\ Pu fission and capture comparison between ENDF/B-VI, JENDL 3.3, and JEF 3.1. .. _fig10-2a-2: .. figure:: figs/COVLIBAppA/fig2.png :align: center :width: 600 :sup:240\ Pu fission and capture comparison between ENDF/B-VI, JENDL 3.3 and JEF 3.1. .. _fig10-2a-3: .. figure:: figs/COVLIBAppA/fig3.png :align: center :width: 600 :sup:241 fission and capture comparison between ENDF/B-VI, JENDL 3.3 and JEF 3.1. .. _fig10-2a-4: .. figure:: figs/COVLIBAppA/fig4.png :align: center :width: 600 :sup:233 fission and capture comparison between ENDF/B-VI, JENDL 3.3 and JEF 3.1. .. _fig10-2a-5: .. figure:: figs/COVLIBAppA/fig5.png :align: center :width: 600 :sup:235 fission and capture comparison between ENDF/B-VI, JENDL 3.3 and JEF 3.1. .. _fig10-2a-6: .. figure:: figs/COVLIBAppA/fig6.png :align: center :width: 600 :sup:238\ U capture comparison between ENDF/B-VI, JENDL 3.3 and JEF 3.1. .. _fig10-2a-7: .. figure:: figs/COVLIBAppA/fig7.png :align: center :width: 600 :sup:232\ Th capture comparison between ENDF/B-VII (beta2), ENDF/B‑VI, JENDL 3.3 and JEF 3.1. .. _fig10-2a-8: .. figure:: figs/COVLIBAppA/fig8.png :align: center :width: 600 :sup:10\ B capture and :sup:3\ He elastic comparison between ENDF/B-VII (beta2), ENDF/B-VI, JENDL 3.3 and JEF 3.1. .. _fig10-2a-9: .. figure:: figs/COVLIBAppA/fig9.png :align: center :width: 600 :sup:1\ H and :sup:2\ H elastic comparison between ENDF/B-VII (beta2), ENDF/B-VI, JENDL 3.3 and JEF 3.1. .. _fig10-2a-10: .. figure:: figs/COVLIBAppA/fig10.png :align: center :width: 600 :sup:152\ Gd and :sup:154\ Gd capture comparison between ENDF/B-VII (beta2), ENDF/B-VI, JENDL 3.3 and JEF 3.1. .. _fig10-2a-11: .. figure:: figs/COVLIBAppA/fig11.png :align: center :width: 500 :sup:155\ Gd capture comparison between ENDF/B-VII (beta2), ENDF/B-VI, JENDL 3.3 and JEF 3.1.
 Deterministic Transport Overview ================================ *Introduction by S. M. Bowman* SCALE deterministic transport capabilities enable criticality safety, depletion, sensitivity, and uncertainty analysis, as well as hybrid approaches to Monte Carlo analysis. SCALE provides a one-dimensional (1D) transport solver for eigenvalue neutronics and fixed source neutron-gamma analysis with XSDRN, two-dimensional (2D) eigenvalue neutronics with NEWT, and a three-dimensional (3D) transport solver for hybrid acceleration of Monte Carlo fixed source and eigenvalue calculations with Denovo. Generally, the use of these transport solvers in SCALE is best accessed through the capability specific sequences: CSAS and Sourcerer for criticality safety, TRITON for 1D and 2D depletion, TSUNAMI‑1D and TSUNAMI-2D for sensitivity and uncertainty analysis, and MAVRIC for 3D fixed source hybrid Monte Carlo analysis. XSDRN ----- XSDRN is a multigroup discrete-ordinates code that solves the 1D Boltzmann equation in slab, cylindrical, or spherical coordinates. Alternatively, the user can select P1 diffusion theory, infinite medium theory, or Bn theory. A variety of calculational types is available, including fixed source, eigenvalue, or search calculations. In SCALE, XSDRN is used for several purposes: eigenvalue (*k*\ :sub:eff) determination; cross section collapsing; and computation of fundamental-mode or generalized adjoint functions for sensitivity analysis. NEWT ----