Reflectors

material_library.reflectors.Beryllium(mass_density=1.85 * units.g / units.cc)

Pure beryllium.

Parameters:

mass_density (density) – The beryllium mass density.

Example:

>>> from core import *
>>> from material_library.reflectors import Beryllium
>>> brl = Beryllium(mass_density=3.01 * units.g / units.cc)
>>> print(brl)
Material     : Beryllium
Type         : reflector
Mass density : 3.0100 g/cc
Isotope   Wt                  Nd (1/b/cm)
Be-9      100.00    %         2.01135e-01
Total     100.00              2.01135e-01

material_library.reflectors.BerylliumOxide(mass_density=3.01 * units.g / units.cc)

Beryllium oxide composite.

Parameters:

mass_density (density) – The beryllium mass density.

Example:

>>> from core import *
>>> from material_library.reflectors import BerylliumOxide
>>> brlo= BerylliumOxide(mass_density=3.01 * units.g / units.cc)
>>> print(brlo)
Material     : Beryllium Oxide
Type         : reflector
Mass density : 3.0100 g/cc
Isotope   Wt                   Nd (1/b/cm)
Be-9      36.04     %         7.24860e-02
O-16      63.96     %         7.24860e-02
Total     100.00              1.44972e-01

Attention

These beryllium mixtures consist solely of Be-9, with no impurities. All mined beryllium will contain trace values of numerous other metals, which varies significantly between different grades and manufactures.

material_library.reflectors.Graphite(mass_density=1.7 * units.g / units.cc)

Pure graphite using natural carbon.

Parameters:

mass_density (density) – The graphite mass density.

Example:

>>> from core import *
>>> from material_library.reflectors import Graphite
>>> grt= Graphite(mass_density=1.7 * units.g / units.cc)
>>> print(grt)
Material     : Graphite
Type         : reflector
Mass density : 1.7000 g/cc
Isotope   Wt                  Nd (1/b/cm)
C-Nat     100.00    %         8.52355e-02
Total     100.00              8.52355e-02

material_library.reflectors.HeavyWater(mass_density=1.107 * units.g / units.cc, enrichment=100.0)

Heavy water.

Parameters:

• mass_density (density) – The total mass density.

• enrichment (float) – Percentage of hydrogen atoms that are deuterium.

Example:

>>> from core import *
>>> from material_library.reflectors import HeavyWater
>>> hwt = HeavyWater(mass_density=1.107 * units.g / units.cc, enrichment=100.0)
>>> print(hwt)
Material     : Heavy Water
Type         : reflector
Mass density : 1.1070 g/cc
Isotope   Wt                  Nd (1/b/cm)
H-2       20.12     %         6.65881e-02
O-16      79.88     %         3.32941e-02
Total     100.00              9.98822e-02

Note

All predefined reflector materials have the appropriate thermal composition attached to them.