Figure 1

Schematic representation of the terrestric neutron wave guide.

a) Side-view parallel to the crack planes: The neutrons in the earth crust are guided between two prallel cracks (dash- doted lines) as discrete modes (fat lines). Optical they are plane rays total reflected by the crack planes and refracted by the earth surface. So we have the schematic outlined distribution of neutron dose in the biosphere.

b) Top-view at the earth surface: The planes of neutron modes strip like cuts the earth surface parallel to the intersection lines of the crack planes.

c) Side-view perpendicular to the crack planes: The flying direction of neutrons (arrow) in the plane of mode common is inclined.

Figure 2

The geophysical place of the Great Oak of Ivenack.

a) The stem diameter of this gigantic tree is 3,50 m and it is 10 degrees inclined.

Figure 2

2b) In top-view of geological Situation and tree position are shown as dash-doted lines of 8 crack pairs crossing star-shaped here.

Figure2

2c) The schematic scaled representation of neutron modes as short fat lines shows their position relative to the tree and across to the crack pairs. The arrows indicate the direction of stem inclination.