For the reactions of 30 MeV/nucleon ' 0 and S with Ag, singles and coincidence measurements have been made for heavy residues, fragments (3~z~14), and light charged particles (z~2). Massvelocity correlations for the residues and fragment-residue coincidences indicate that increasing residue velocities do correspond to increasing excitation energy. Excitation energies as high as 90% of those which would result from complete fusion are reached. The spectra of light particles detected in coincidence with residue groups having different average velocities are analyzed with a moving source fit. When recoil effects are properly taken into account, excellent fits to the data are obtained. From the energy spectra and multiplicities of particles emitted from a fusion-like source the initial temperatures of the primary composite nuclei are determined. The results suggest that a plateau temperature near 6.5 MeV is reached above excitation energies of 3 MeV/nucleon. The temperatures are compared to those resulting from various model calculations.(TOF) timing detectors separated by a Aight path of 36 cm and followed by a gas ionization chamber and a stack of three Si transmission detectors with thicknesses of 100 p, 500 p, and 5 mm.Heavy residues were stopped in the ionization chamber in order to avoid pulse-height-defect corrections. The 39 497 1989 The American Physical Society 498 R. WADA et al. 39 TABLE I. Extracted parameters of a moving source fit for light particles coincident with residues in different velocity windows. M is the multiplicity of the particles per residue. P, and P;"are the velocities of the sources and the projectiles in unit of light velocity. Values with single or multiple + indicate that those are fixed values. The velocity of the CN-like source ( + ) is calculated from the residue velocity window. + + indicates the values taken from those of alpha particles. + + + shows the values taken from the 100% window data. Vres window Ejectiles Parameters p-like Sources int CN-like 100% VFMT VFMT 60%%uo VFMT 40% VFM S+A M P, /P;. T (Mev)E, (Mev)