Accession Number:

ADA608760

Title:

Anomalies in the Decay of Particular Nuclear Isotopes (Briefing charts)

Descriptive Note:

Final rept. 15 Nov 2011-14 Nov 2013

Corporate Author:

DEFENSE THREAT REDUCTION AGENCY ARLINGTON VA

Report Date:

2014-05-08

Pagination or Media Count:

10.0

Abstract:

It is extremely challenging to measure the half-life of long lived isotopes. A USAFA-Purdue- Stanford- CCHEN collaboration has documented experiments in which small, unexplained fluctuations were found in the half-lives of select radioisotopes. Since the fluctuation was small in each case on the order of 0.5, the effect usually had only a relatively minor impact on the determination of the half-life. A comparison of the periodic behavior of the data from several of the experiments indicated that the periods of the primary mode of oscillation are remarkably similar. While the systematic effects are certainly possible, the group notes the anomalies are similar in nature to some experimental Dark Matter searches that may indicate new physics. The group has gained access to daily calibration data for the IAEA s International Monitoring System.

Subject Categories:

  • Isotopes
  • Radioactivity, Radioactive Wastes and Fission Products

Distribution Statement:

APPROVED FOR PUBLIC RELEASE