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The multifragmentation data of the ISiS Collaboration and the EOS Collaboration are examined. Fisher's droplet formalism, modified to account for Coulomb energy, is used to determine the critical exponents {tau} and {sigma}, the surface energy coefficient c{sub 0}, the pressure-temperature-density coexistence curve of finite nuclear matter and the location of the critical point.

The inclusive light fragment (Z⩽7) yield data in Au+Au reactions, measured by the EOS Collaboration at the LBNL Bevalac, are presented and discussed. For peripheral collisions the measured charge distributions develop progressively according to a power law which can be fitted by a single τ exponent independently of the bombarding energy in the range 250–1200 A MeV. In addition to this universal feature, we observe that the location of the maximum in the individual yields of different charged fragments shift towards lower multiplicity as the fragment charge increases from Z=3 to Z=7. This trend is common to all six measured beam energies. Moments of charge distributions and correlations among different moments are reported. Finally, the THe,DT thermometer has been constructed for central and peripheral collisions using the double yield ratios of He and D, T projectile fragments. The measured nuclear temperatures are in agreement with experimental findings in other fragmentation reactions.

We discuss the experimental situation of nucleon-induced reactions. Motivated by important current technological applications such as single event upsets (SEU) in microelectronic devices and particle-beam radiotherapy, we focus on light elements and beam energies below 250 MeV. We review the data from proton- and neutron-induced reactions obtained at UC Davis and elsewhere in the last 2 decades. Despite the large compilation of data (mainly inclusive spectra of light ions), we point out the scarcity of recoil data. We emphasize the fact that recoil nuclei contribute a significant part of the secondary radiation which is a major source of SEUs in devices, and of importance for radiation-related calculations. We discuss a new program under development, in which we measure recoil spectra using reverse kinematics. We discuss results from a recent experiment of 1H(28Si,A)x at 80 MeV/nucleon performed at the NSCL at Michigan State University. The preliminary data are compared well with a cascade-statistical reaction model (NUSPA).

The design of a Time Projection Chamber (TPC) detector with complete pad coverage is presented. The TPC will allow the measurements of high multiplicity (∼200 tracks), relativistic nucleus‐nucleus collisions initiated with the heaviest, most energetic projectiles available at the LBL BEVALAC accelerator facility. The front end electronics, composed of over 15,000 time sampling channels, will be located on the chamber.

The first spectra from the UC Davis cyclotron’s zero degree facility for (n,p) scattering have been obtained from 12C, 13C, 90Zr, and 209Bi at an incident neutron energy of 65 MeV. Cross sections for the ground state, the ∼4.4 MeV and the GDR are extracted for the carbon isotopes. Two broad resonances in 209Bi at ∼7.5 MeV and ∼15 MeV and a broad resonance in 90Zr at ∼22 MeV are compared with previous work done at Davis away from zero degrees.

The charge exchange reaction 40Ca(n,p)40K has been measured at 65.5 MeV. A strong enhancement is observed at energies corresponding to the analog of the 40Ca G.D.R. The angular distribution is partially consistent with a ΔL=1 transfer, but at forward angles deviates from it. Comparison with the (3He,t) and (p,n) reaction is presented.

The charge and transverse momentum distributions for the heavy−ion reactions with 1.2 GeV per nucleon 139−La incident on 12−C, 16−O, and 40−Ar targets are presented. Fragment momentum isotropy predicted in some models does not appear in these results.

We report on our measurements of n‐p scattering observables at 50 MeV, most notably the recent measurement of the spin‐correlation parameter, Ayy. This measurement is sensitive to the phase shift parameters ?1 and δ (1P1), for which early phase shift analyses gave poorly determined or ’’unphysical’’ values. The results of our measurements are incorporated in a phase shift analysis to determine or ’’unphysical’’ values. The results of our measurements are incorporated in a phase shift analysis to determine current best‐fit values of 50 MeV n‐p phase shifts.