Periodictable

Latest version: v1.7.0

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1.4.0

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* support python 3.3

1.3.10

-----------------

Modified:

* fix activation calculation to ignore fast neutrons in thermal environment
* add emission spectra for remaining elements above neon

1.3.9

----------------

Modified:

* Update requirements to pyparsing<2.0.0 (we don't support python 3 yet)

1.3.8

----------------

New:

* formula parser supports density spec and mix by weight/mix by volume

Modified:

* py2exe/py2app wrapping now includes missing activation.dat
* skipping bad 1.3.7 build which didn't include all changes

1.3.6

----------------

New:

* add activation decay time to neutron activation calculator

Modified:

* Change neutron scattering calculations for incoherent cross section
to be the linear combination of the incoherent cross sections of the
individual atoms rather than total cross section minus the coherent
cross section. Penetration depth of the unscattered beam still uses
the total cross section plus the absorption cross section.

1.3.5

----------------

New:

* formulas now report charge and mass_fraction
* formula parser accepts ions as Yy{+} or Yy[]{+} for isotopes
* support neutron activation calculations
* support xray refraction index and mirror reflectivity

Modified:

* update X-ray scattering tables for Zr
* adjust ion mass for number of electrons
* ions now display as Yy{+} rather than Yy^{+}
* fix formula.natural_density
* fix formula.hill so C,H come first
* fix element.interatomic_distance
* formula(value=...) -> formula(compound=...)

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