annihilation(radiation) photon

Low-enerugy photon radiation

delta radiation (=δ-radiation)

Photon ionization-photon dissociation

two photon resonance three photon ionization

two photon resonant three photon ionization

Ionization radiation (r-radiation)

Journal of Radiation Research and Radiation Processing

18F-Fluorodeoxyglucose single photon emission computed tomography

3-Photon REMPI

60Co photon fluences

absorbed spectra of multi-photon resonance

ALICE photon spectrometer

all-photon event

alpha-photon source

annihilation photon

atom and photon interactions

avalanche photon diode

Average photon counting rate