Fibroblasts were established in vitro from skin biopsies obtained from 55 women and 1 man with or without breast cancer and with or without exposure to radiation from the atomic bomb explosion in Hiroshima. The radiosensitivity of these cells was evaluated by clonogenic assays after exposure to X-rays or to fission neutrons from a 252Cf source. Data were fitted to a multitarget model, S/S0 = A ...

The changes of binding and fluorescent parameters of 1-anilino-8-naphthalene sulphonate (ANS) bound to lymphocyte membrane after irradiation in vitro were investigated. No significant dose dependence was found for either fluorescence or its polarization within the dose range of 0.1 to 0.7 Gy from a gamma-neutron field 252Cf source. Marked changes were however found for parameters of ANS binding...

The atomic structure of californium is probed by two-step resonance ionization spectroscopy. Using samples with a total amount about 2×1010 Cf atoms (ca. 8.3 pg), ground-state transitions as well to high-lying Rydberg states and auto-ionizing above the potential are investigated lifetimes various levels measured. These investigations lead identification efficient schemes, important for trace an...

Coincidence intensities and uncertainties are extracted at the statistical limits from -y--y coincidence matrices. The matrices are decomposed into continuum, ridges and peaks. The continuum is successfully modeled by the product of two vectors which describe the Compton distributions in the coincident detectors or groups of detectors. The ridges are represented by the corresponding continuum v...