Nitrogen

N₂

Gases & Other

Density: 0.001165 g/cm³

Nitrogen gas at STP. Used for inerting containment and fuel handling areas.

Composition

Nuclide / Element	Fraction
N-14	1.000000

Code output

MCNP

c Nitrogen Gas (STP)
c Density: 0.001165 g/cm3 (use -0.001165 on cell card)
m40    7014.80c  1.000000  $ N-14

Notes

N-14 is 99.6% of natural nitrogen. The N-14(n,p)C-14 reaction produces long-lived C-14 (t½ = 5,730 y), relevant for waste and environmental dose calculations.

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