Patent Number: 
Section: claims

1. A structure element for radiation shielding constructions in a building sized for normal human occupancy, comprising: at least one floor plate of the building, walls of the building connected to the floor plate of the building and a ceiling of the building connected to the walls, wherein at least one wall section of the building or at least one ceiling section of the building includes at least two shell elements, each shell element made of at least one of metal, plastic and/or wood and further including a layer of radiation shielding material lying between the at least two shell elements; wherein the type of the radiation shielding material varies in accordance with the type of radiation or radiation intensity. 2. Structure element according to claim 1, wherein the at least two shell elements are connected to the at least one floor plate and to additional shell elements by means of detachable connections in such a way that the structure element can be dismantled without being destroyed and thereafter can be reassembled. 3. Structure element according to claim 2, wherein the detachable connections are formed by means of angled struts. 4. Structure element according to claim 2, wherein the detachable connections include omega profiles. 5. Structure element according to claim 1, wherein the at least two shell elements have an essentially wave-shaped profile. 6. Structure element according to claim 1, wherein the at least two shell elements enclosing the radiation shielding material are connected together by detachable tie-rods arranged transversely to their longitudinal direction. 7. Structure element according to claim 6, wherein the tie-rods have one of a Z, T or U profile. 8. Structure element according to claim 1, wherein at least one of the wall sections or at least one ceiling section has a constant thickness. 9. Structure element according to claim 1, wherein the radiation shielding material contains mineral substances, which owing to their petrographic properties, in particular their atomic number and/or specific density, are suitable for radiation shielding material. 10. Structure element according to claim 1, wherein the radiation shielding material contains bound water. 11. Structure element according to claim 1, wherein the radiation shielding material contains calcium carbonate. 12. Structure element according to claim 1, wherein the radiation shielding material comprises natural unbaked calcium sulphate dihydrate. 13. Structure element according to claim 1, wherein the radiation shielding material comprises a ballast made of hardened granulated gypsum. 14. Structure element according to claim 1, wherein the radiation shielding material is compressed. 15. Structure element according to claim 1, wherein additives of materials selected from the group consisting of gibbsite, hydrargillite, aluminium hydrate and magnesium sulphate are added to the radiation shielding material. 16. Structure element according to claim 1, wherein the at least one floor plate is elastically mounted via a mounting. 17. Structure element according to claim 16, wherein the mounting comprises elastic material, at least one spring element and at least one shock absorber. 18. Structure element according to claim 1, wherein an entrance opening is defined through the walls and wall sections are arranged relative to one another in the region of the entrance opening in such a way that a labyrinth-like access is formed. 19. Structure element according to claim 1, wherein the ceiling includes at least one ceiling section that is fixed detachablyto transverse bearers and longitudinal bearers, wherein the transverse bearers or the longitudinal bearers are at least partially supported on the wall sections. 20. Construction, in particular radiation shielding construction, with at least one base plate or ceiling plate bounding a storey, wherein the construction has at least one structure element according to claim 1. 21. Construction according to claim 20, wherein the structure element is integrated into the base plate or the ceiling plate of the structure in such a way that the surface of the at least one floor plate together with the surface of the base plate, and/or the surface of the ceiling section together with the surface of the ceiling plate, form an essentially flat surface.