relating to or caused by high-energy photons (= single units of light) coming into contact with the nucleus (= central part) of an atom

Studies suggest that the number of photonuclear reactions is closely related to the laser intensity and irradiation time. 研究表明，光核反应的数量与激光强度和照射时间密切相关。

Photonuclear experiments were performed using high-peak power lasers.