Thick-target yield of [formula omitted][formula omitted] ray from the resonant reaction [formula omitted]Li[formula omitted]Be at E[formula omitted] = [formula omitted].

High energy γ -ray plays an important role in the study of the nuclear industry and nuclear physics. (p , γ) resonant reaction is a classic way to produce quasi-monochromatic γ -ray. The determination of (p , γ) yield is an important prerequisite for using this γ -ray source to carry out subsequent work. In this work, the 7 Li (p , γ) 8 Be resonant reaction at E p = 441 keV is utilized to produce 17.6 MeV γ -ray using the 2 × 1.7 MV tandem accelerator at CIAE. The full yield curve is measured for the first time. The maximum thick-target-yield of 17.6 MeV γ -ray is determined to be (3.2 ± 0.2) × 10 − 9 γ /p. This would lead to the γ -ray intensity of 2 × 10 8 /s when using 10 mA proton beam which has been typically available to date. This intensity is comparable to the one from the laser-Compton scattering facilities in operation. Thus can be used for study of photonuclear reactions. • The angular distribution of 17.6 MeV γ -ray from 7 Li (p , γ) 8 Be resonant reaction at E p = 441 keV has been measured. The divergence between those previous experiments is clarified. • The full yield curve of 17.6 MeV γ -ray from 7 Li (p , γ) 8 Be resonant reaction at E p = 441 keV is measured for the first time. The maximum thick-target-yield is determined to be (3.2 ± 0.2) × 10 − 9 γ /p. This would lead to the γ -ray intensity of 2 × 10 8 /s when the proton beam is 10 mA. • The γ -ray intensity of 17.6 MeV from 7 Li (p , γ) 8 Be resonant reaction γ -source at E p = 441 keV is comparable to the beam intensity provided by a state-of-the-art LCS facilities in operation. Thus can be used for study of photonuclear reactions in some cases. [ABSTRACT FROM AUTHOR]