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使用离线ｙ能谱法和厚靶──厚收集箔技术测量了４０ＭｅＶ／ｕ４０Ａｒ和Ｃｕ相互作用中靶余核的生成截面和前向平均反冲射程ＦＷ值．根据电荷分布假设得到了靶余核的质量产额分布．从ＦＷ值导出了重离子碰撞中的线性动量转移．与１２Ｃ＋Ｃｕ和２０Ｎｅ＋Ｃｕ的类似结果比较指出，在相同的弹核速度下，相应于中心碰撞的相对线性动量转移随弹核质量增加而减小，但是在４０Ａｒ离子和Ｃｕ的中心碰撞中产生的复合系统的激发能比１２Ｃ和２０Ｎｅ离子碰撞情况下更高，达到每核子５．３ＭｅＶ．
The generation cross section of the target nucleus and the FW value of the forward mean recoil range of the 40 MeV / u40Ar and Cu interaction were measured by the off-line y-ray spectrometry and the thick target-thick collector foil technique. Based on the charge distribution assumption, the mass yield distribution of the target nuclei is obtained. The linear momentum transfer in heavy ion collisions is derived from the FW value. Compared with the similar results of 12C + Cu and 20Ne + Cu, it is pointed out that the relative linear momentum transfer corresponding to the central collision decreases with the increase of the bombardment mass at the same nucleation rate, but the complex system produced in the central collision of 40Ar ions with Cu The excitation energy is higher than that of 12C and 20Ne ions, reaching 5.3 MeV per nucleon.