Some New Radioactive Isotopes,
Abstract
In order to allow quantitative interpretation of the reactions of high energy particles from the 184-inch cyclotron with tantalum and heavier elements, a systematic survey is being made of radioactive isotopes of the rare earth elements and hafnium, tantalum, tungsten, and rhenium. Bombardments of various elements are being made using 38-Mev and 20-Mev helium ions, 19-Mev deuterons, and 10-Mev protons from the 60-inch Crocker Laboratory cyclotron. Chemical separation of the rare earth elements is made by ion-exchange resin columns. The accompanying table summarizes present data; energies of radiations are determined from absorption measurements; positrons are observed using a magnetic counter; mass allocations are made on the basis of measured cross sections.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1948
- Accession Number
- ADA321408
Entities
People
- Geoffrey Wilkinson
- Harry G. Hicks
Organizations
- Oak Ridge National Laboratory