Merge pull request #41 from fispact/add_nuc_helper_props

Add nuc helper props

Author: thomasms

Diff for: docs/index.rst

@@ -57,9 +57,10 @@ nuclides at the first timestep.
    import pypact as pp
 
    # the standard output file from FISPACT-II
+   # test files exist in 'references' directory
    filename = 'myfispactrun.out'
 
    with pp.Reader(filename) as output:
       nuclides = output[0].nuclides
       for nuc in nuclides:
-         print(f"{nuc.element}{nuc.isotope}{nuc.state} = {nuc.atoms:.3e} atoms")
+         print(f"{nuc.name} = {nuc.atoms:.3e} atoms")

Diff for: pypact/output/nuclide.py

@@ -1,6 +1,7 @@
 from pypact.util.decorators import freeze_it
 from pypact.util.numerical import is_float, get_float
 from pypact.util.jsonserializable import JSONSerializable
+from pypact.library.nuclidelib import get_zai
 
 NUCLIDE_IGNORES = ['\n', '|', '>', '&', '?', '#']
 
@@ -26,6 +27,14 @@ def __init__(self):
         self.ingestion = 0.0
         self.inhalation = 0.0
 
+    @property
+    def name(self):
+        return f"{self.element}{self.isotope}{self.state}" 
+
+    @property
+    def zai(self):
+        return get_zai(self.name) 
+
     def fispact_deserialize(self, linedump, column_headers):
 
         self.__init__()