The Effect of N/Z on Caloric Curves

For many years, the onset of multi-fragmentation in excited nuclei has been associated with a liquid-to-gas type phase transition. Phase transition studies have been conducted using yields from discrete telescopes and quasi-complete event detectors. These efforts have yielded information about nuclear phase transitions in general. However, the effect of the two-component nature of the nucleus is still unclear. The reactions of $^{86,78}$Kr projectiles on $^{64,58}$Ni targets at 35MeV/u were studied with the NIMROD-ISiS array. The 4pi coverage and excellent isotopic resolution of NIMROD-ISiS allow quasi-projectiles to be reconstructed in both Z and A. Caloric curves will be presented as a function of N/Z of this well-defined quasi-projectile source.