100+ features of Karlsruhe Nuclide Chart, Part 5

By Dr Debasish Saha, India December 23, 2023

100+ features of Karlsruhe Nuclide Chart, Part 5

INFORMATION BY COLOR

1. Color scheme

Pure decay modes are indicated by a single colour.

Mixed decay modes are indicated by the use of coloured triangles.

Black is for stable nuclides

Blue is for b- decay

Red is for electron capture or b+ decay (e/b+)

Yellow is for alpha decay

Light blue is used for neutron decay

Light brown for proton decay,

Green for spontaneous fission,

Violet for cluster decay or cluster emission and

White for isomeric transition.

2. Multiple color scheme: Multiple decay scheme: How are they arranged

A small coloured triangle in the top left or bottom right indicates a branching ratio for this mode of ≥5% (conversely, the major mode has a branching ratio of ≥95%)

3. Small (5%) Triangle on the

top left corner: proton or alpha emission

bottom right corner: β- emission or spontaneous fission emission

Cluster emission is always indicated with a small triangle in the top right corner.

4. Major triangle (95%)

For ε/β+, the red triangle is at the bottom right if the main mode is alpha or proton emission.

Otherwise, the red triangle is at the top left
corner.

For isomer transition IT, the white triangle is at the
bottom right if the main mode is a- or p- emission or ε/β+,
otherwise it is at the top left corner.