许多提取核反应过程中熵产生的方法只适用于高能核反应过程 ,而约化d的产额方法可以用于较低能量的重离子核反应中 .对于 3 5MeV/u40 Ar+ 197Au的核反应过程 ,利用这种方法所得的熵和约化带电粒子多重性提取的熵结果一致 .对于后角热核发射体系 ,实验提取的核温度为 ( 4.7± 1 .2 )MeV ,熵为S/A =2 .5± 0 .5,根据实验提取的熵和核温度可以确定其碎裂密度小于 0 .1 ρ0 Many methods of extracting entropy from nuclear reactions are only applicable to high-energy nuclear reactions, while those using reduced yields can be applied to lower-energy heavy ion nuclear reactions. For the nuclear reaction process of 35MeV / u40 Ar + 197Au, The entropy obtained by the proposed method is consistent with that of the entropy extracted from the multiplicity of reduced charged particles. For the posterior horn thermonuclear emission system, the experimental temperature is (4.7 ± 1.2) MeV and the entropy is S / A = 2.5 ± 0 .5, according to the experimental extraction of the entropy and the core temperature can be determined its fragmentation density is less than 0 1 ρ0