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Neutron Activation Analysis Calculator

Calculate the induced radioactivity (activation) of a target material irradiated by a neutron flux, accounting for saturation effects. Used in neutron activation analysis (NAA) to determine trace element concentrations in samples.

Neutron Flux (n/cm²/s)

Activation Cross Section (barns)

Irradiation Time (seconds)

Decay Constant (s⁻¹)

Target Nuclei Density (nuclei/cm³)

Fill in the required fields to see your result.

Nuclear

Neutron Flux Calculator

Calculate neutron flux φ from neutron density and average neutron speed for reactor physics analysis. Useful for estimating reaction rates, power density, and material irradiation exposure inside reactor cores.

Neutron Density (n/cm³)

Neutron Velocity (m/s)

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Key differences

	Neutron Activation Analysis Calculator	Neutron Flux Calculator
Category	Nuclear	Nuclear
Inputs required	5	2
Result	Induced Activity (Bq)	Neutron Flux (n/cm²·s)
What it does	Calculate the induced radioactivity (activation) of a target material irradiated by a neutron flux, accounting for saturation effects. Used in neutron activation analysis (NAA) to determine trace element concentrations in samples.	Calculate neutron flux φ from neutron density and average neutron speed for reactor physics analysis. Useful for estimating reaction rates, power density, and material irradiation exposure inside reactor cores.