论文部分内容阅读
用ＣＲ－３９迭层探测器测量了４４ＧｅＶ或１８ＧｅＶ１２Ｃ离子轰击Ｃｕ靶或Ｐｂ靶时中子产额与入射粒子能量以及靶核质量的关系。当入射能量由１８ＧｅＶ增至４４ＧｅＶ时，Ｃｕ靶的中子产额增大２．１２±０．１９倍，Ｐｂ靶的中子产额增大２．０４±０．１５倍。Ｐｂ靶和Ｃｕ靶中子产额之比在４４ＧｅＶ和１８ＧｅＶ分别为２．５４±０．２０和２．５６±０．２０。
The relationship between the neutron yield and the energy of the incident particles and the mass of the target nucleus when the 44GeV or 18GeV12C ions hit the Cu target or the Pb target was measured by the CR-39 stacking detector. When the incident energy is increased from 18GeV to 44GeV, the neutron yield of Cu target increases by 2.12 ± 0.19 times and the neutron yield of Pb target increases by 2.04 ± 0.15 times. The ratio of Pb target to Cu target neutron yield was 2.54 ± 0.20 and 2.56 ± 0.20 at 44GeV and 18GeV, respectively.