FISSION WIDTHS AND AREAS OF LOW-LYING RESONANCES IN NP-237

The fission widths of GAMMA(f) and areas of Sigma0GAMMA(f) under 27 re sonances of Np-237 were measured on the pulsed IBR-30 reactor using th e time-of-flight technique. The measurements were carried out for neut ron energies ranging from 3 to 50 eV. Comparison of the sigma0GAMMA(f) and GAMMA(f) values with data from other works and analysis of possib le systematic errors show that the Saclay and Geel data are underestim ated approximately by factors of 3 and 1.5, respectively. On the avera ge, the Dubna and Los Alamos GAMMA(f) values agree with each other wit hin the limits of 15%.