As a not necessarily representative example, the decay data in the NUCLIDES 2000 database, which is based on the JEF2.2 decay data file, use a year of 365 days and a day of 24 hours.

For example, the halflife of Co-60 is internally stored as 1.6623E+08 seconds but reported as 5.2711E+00 years.

As a not necessarily representative example, the decay data in the NUCLIDES 2000 database, which is based on the JEF2.2 decay data file, use a year of 365 days and a day of 24 hours.

For example, the halflife of Co-60 is internally stored as 1.6623E+08 seconds but reported as 5.2711E+00 years.

The decay data provided in

• Endo, A., Yamaguchi, Y., Eckerman, K.F., 2005. Nuclear Decay Data for Dosimetry Calculations: Revised Data of ICRP Publication 38. JAERI 1347. Japan Atomic Energy Research Institute, Tokaimura, Naka-gun, Ibaraki.
• ICRP, 2008. Nuclear Decay Data for Dosimetric Calculations. ICRP Publication 107. Ann. ICRP 38 (3).

use a year of 365.2422 days and a day of 24 hours (which corresponds to a tropical year of 365 days, 5 hours, 48 minutes, and 46 seconds).