Composition of the 7Li(p,g) Radiation Below the 441 keV Resonance

Abstract

The only published determinations of the energy of the ?-radiation emitted when lithium is bombarded by protons with energy less than 400 keV have been made by absorption measurements of secondary electrons in aluminium. Gentner (1937) found that the radiation at 90° from a thick lithium target at 300 keV, had the same half-value thickness as that at 550 keV, corresponding to about 17 MeV. Tangen (1946), however, reported that the radiation emitted at 0° at both 300 and 400 keV had energy 14·5 ± 0·5 MeV.