Exemple #1
0
def test_u235():
    try_download(
        "http://t2.lanl.gov/nis/data/data/ENDFB-VII.1-neutron/U/235",
        "U235.txt",
        "1b71da3769d8b1e675c3c579ba5cb2d3",
    )

    u235 = Library("U235.txt")
    nuc = 922350000
    u235._read_res(nuc)
    u235._read_xs(nuc, 37)
    exp_a = array_from_ENDF(
        io.BytesIO(
            b""" 9.223500+4 2.330248+2          0          0          0          0
-1.788560+7-1.788560+7          0          0          1          6
          6          2                                            """ + b"""
 1.796240+7 5.05980-10 1.800000+7 3.810030-7 1.850000+7 8.441785-5
 1.900000+7 2.387410-4 1.950000+7 1.348763-3 2.000000+7 4.785594-3
"""))
    obs = u235.structure[nuc]["data"][nuc]["xs"][37][0]
    exp = {
        "intpoints": 6,
        "intschemes": 2,
        "e_int": exp_a[3:5].flat[::2],
        "xs": exp_a[3:5].flat[1::2],
    }

    for key in obs:
        assert_array_equal(obs[key], exp[key])
Exemple #2
0
    def new_func(*args, **kwargs):
        with warnings.catch_warnings():
            warnings.filterwarnings("ignore", category=FutureWarning)
            return func(*args, **kwargs)

    new_func.__name__ = func.__name__
    new_func.__doc__ = func.__doc__
    new_func.__dict__.update(func.__dict__)
    return new_func


tape1path = "files_test_endf/sampletape1"
library = Library(tape1path)
nuc1002, nuc1003, nuc40000 = nucname.id(1002), nucname.id(1003), nucname.id(
    40000)
library._read_res(nuc1002)
library._read_res(nuc1003)
library._read_res(nuc40000)
nuc40040 = nucname.id(40040)


def array_from_ENDF(fh):
    "Convert a chunk of ENDF, stripped of metadata, into a numpy array."
    return np.genfromtxt(
        fh,
        dtype="float",
        delimiter=11,
        converters={
            0: endftod,
            1: endftod,
            2: endftod,