N17, a Delayed Neutron Emitter |
Common terms and phrases
016 recoils 190 Mev deuterons 4.2 second half-life 4.2 second neutron 4.2 second period absorption curve active charcoal alpha-particle April 29 argon Ascarite tubes B-rays background effects BF3 chamber Bohr-Wheeler theory bombarded with 190 branching ratio broad excited coincidence technique coincidence with neutrons counting rate cyclotron decay scheme Delayed Neutron Emitter detected Disintegration Scheme electron elimination emitted Emitter L. W. Alvarez end point energies measured energy loss Evans Hayward fission fluorine gamma-ray Geiger counter GM GM gms/cm² helium high energy hot CuO Information Division isotope N16 BACKGROUND N17 beta-rays National Laboratory neutron activity neutron distribution Neutron Emitter L. W. neutron energy neutron line neutron spectrum NH4F observed oxygen p-ray absorption peak Phys proportional counter proton energy spectrum Radiation Laboratory University Recent cloud chamber recoil energy Sargent curve shown in Figure solution was bombarded source of N17 ẞ-ray energy ẞ-rays in coincidence sweeping and counting transition UCRL-201 Physics-General upper limit width