A New Measurement of the Packing Fractions of the Nickel Isotopes,
Abstract
The most recent determination of the packing fractions of the nickel isotopes was reported in 1941. The source of positive ions for this measurement was a high voltage discharge through a vapor mixture of Ni(CO)4 and n-C7H16. No further details were given on the source but in a previous paper, it was suggested that the cylindrical discharge tube was provided with an aluminum bar anode and a concave iron cathode. In the absence of more details it is difficult to judge the constancy or reproducibility of this source of positive ions. Generally speaking, a high voltage gaseous discharge tends to produce an intermittent and fluctuating beam of ions. In view of the uncertainties of this type of source and the rather surprisingly rapid and irregular variation in the binding energy of the nickel isotopes, as inferred from the packing fraction measurements of the authors, it was deemed desirable to make new measurements under completely different conditions.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 20, 1948
- Accession Number
- ADA321450
Entities
People
- A. E. Shaw
Organizations
- Oak Ridge National Laboratory