Accession Number : ADA319233

Title :   The Radioactivity of Am(242),

Corporate Author : TECHNICAL INFORMATION SERVICE (AEC) OAK RIDGE TN

Personal Author(s) : O'Kelley, G. D. ; Barton, G. W., Jr. ; Crane, W. W. ; Perlman, I.

PDF Url : ADA319233

Report Date : JUL 1950

Pagination or Media Count : 5

Abstract : The neutron irradiation of 475-year Am(241) results in the production of a pair of isomers, Am(242m) with 16-hr half-life known to decay by beta emission and a long-lived ground state, Am(242), which is also a beta emitter and has weak alpha branching. Since fairly strong activities can be prepared by pile-neutron irradiation of small quantities of Am(241) it became feasible to examine the radiations, particularly those of Am(242), with beta-ray and X-ray spectrometers. When this was done, not only was the beta transition characterized, but good evidence was obtained that in addition this isomer undergoes appreciable branching decay by isomeric transition and by electron capture.

Descriptors :   *RADIOACTIVE DECAY, *NATURAL RADIOACTIVITY, *AMERICIUM, X RAYS, NAVAL RESEARCH, X RAY SPECTROSCOPY, RADIOACTIVE ISOTOPES, ELECTRON CAPTURE, NEUTRON IRRADIATION, HALF LIFE, NUCLEAR RADIATION SPECTROMETERS, BETA RAY SPECTRUM, ISOMERIC TRANSITIONS.

Subject Categories : Inorganic Chemistry
      Radioactiv, Radioactive Wastes & Fission Prod

Distribution Statement : APPROVED FOR PUBLIC RELEASE