Spallation Calculator

Calculate neutron yield from proton-induced spallation reactions

Proton Beam Energy (MeV):

Target Material

Atomic Number (Z):

Mass Number (A):

Proton Beam Current (mA): (optional)

About Spallation

Spallation is a nuclear process where high-energy particles (typically protons) knock nucleons out of heavy target nuclei. It is the basis for modern accelerator-driven neutron sources.

Major Facilities:

SNS (Oak Ridge): 1.4 MW, 1 GeV protons on Hg
ESS (Lund): 5 MW, 2 GeV protons on W
J-PARC (Japan): 1 MW, 3 GeV protons on Hg
ISIS (UK): 0.2 MW, 800 MeV protons on W/Ta

Applications:

Neutron scattering research
Nuclear waste transmutation (ADS)
Medical isotope production