Related Experiment Video
Updated: Mar 30, 2026

Preparing an Isotopically Pure 229Th Ion Beam for Studies of 229mTh
Published on: May 3, 2019
Decay Data Evaluation Project (DDEP): Updated decay data evaluations for (24)Na, (46)Sc, (51)Cr, (54)Mn, (57)Co,
Valery P Chechev1, Nikolay K Kuzmenko1
1V.G. Khlopin Radium Institute, 28 Second Murinsky Ave., St. Petersburg 194021, Russia.
Abstract:
Updated DDEP evaluations have been presented for the decay characteristics of the radionuclides (24)Na, (46)Sc, (51)Cr, (54)Mn, (57)Co, (59)Fe, (88)Y and (198)Au. Previous DDEP evaluations for these radionuclides were published in the BIPM-5 monographie in 2004. The experimental data published during the intervening period of 2004-2014 were taken into account in the current evaluations as well as other information: new compilations, analyses, and corrections. The updated evaluations are compared to previous results.
Related Concept Videos
Nuclear Stability
To hold positively charged protons together...
Nuclear Transmutation
Radioactive Decay and Radiometric Dating
Other Nuclides: 31P, 19F, 15N NMR
While fluorine-19 and phosphorous-31 have high natural abundances (100%) and positive gyromagnetic ratios, nitrogen-15 has a low natural abundance and a negative gyromagnetic ratio. However, nitrogen-15 is still preferred over nitrogen-14 (which has a...
Radioactivity and Nuclear Equations
A nuclide of an element has a specific number of protons and...
Types of Radioactivity
Alpha (α) decay is the emission of an α particle from the nucleus. For example, polonium-210 undergoes α decay:

![Automated Radiochemical Synthesis of [18F]3F4AP: A Novel PET Tracer for Imaging Demyelinating Diseases](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F55537.jpg&w=3840&q=50)