Nuclear Shielding Attenuation: tungsten
Mass attenuation coefficients, linear attenuation coefficients, half-value layers (HVL), tenth-value layers (TVL), and buildup factors for gamma-ray and neutron shielding design. Covers lead, ordinary concrete, barite concrete, steel, water, polyethylene, borated polyethylene, and tungsten at gamma energies from 0.1 to 10 MeV. Neutron removal cross sections for fast and thermal neutrons. Sources: NIST XCOM database, ANSI/ANS-6.4.3-1991 buildup factors.
| shielding material | radiation energy key | HVL cm (cm) | TVL cm (cm) | buildup factor 10mfp (dimensionless) | buildup factor 1mfp (dimensionless) | buildup factor 2mfp (dimensionless) | buildup factor 5mfp (dimensionless) | density g per cm3 (g/cm3) | energy MeV (MeV) | linear attenuation coefficient per cm (1/cm) | mass attenuation coefficient cm2 per g (cm2/g) | mean free path cm (cm) | notes | radiation type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| tungsten | gamma#0.1000 | 0.00809 | 0.02688 | 1.7 | 1.1 | 1.18 | 1.42 | 19.3 | 0.1 | 85.65 | 4.438 | 0.01168 | NIST XCOM ElemTab/z74.html; density 19.3 g/cm3; excellent shielding at low-medium energies; K-edge at 69.5 keV | gamma |
| tungsten | gamma#0.2000 | 0.04578 | 0.1521 | 2.75 | 1.23 | 1.41 | 2 | 19.3 | 0.2 | 15.14 | 0.7844 | 0.06607 | NIST XCOM ElemTab/z74.html | gamma |
| tungsten | gamma#0.5000 | 0.2605 | 0.8656 | 5.9 | 1.5 | 2 | 3.72 | 19.3 | 0.5 | 2.66 | 0.1378 | 0.3759 | NIST XCOM ElemTab/z74.html; comparable to lead but higher density | gamma |
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