Dual scintillator system for neutron and electromagnetic imaging

A method comprising:

• directing a first ionizing radiation through an object region onto a scintillator stack comprising a first scintillator and a second scintillator, wherein:
• the first scintillator is positioned upstream the second scintillator;
• and
• a target object is positioned in the object region;
• converting the first ionizing radiation into first photons comprising a first wavelength at the first scintillator, wherein the first photons propagate from the first scintillator, through the second scintillator, and toward an imaging detector;
• directing a second ionizing radiation through the object region onto the scintillator stack;
• and
• converting the second ionizing radiation into second photons comprising a second wavelength at the second scintillator, wherein:
• the second photons propagate from the second scintillator toward the imaging detector;
• and
• the second scintillator comprises a higher transmittance percentage at the second wavelength than the first scintillator.