Patent Number: 
Section: claims

1. A method for producing a radiation protection element, comprising the steps of:arranging at least one radiation protection material between at least two layers of at least one plastic-containing element,removing at least part of the gas present between the at least two layers or positioning the at least two layers with the radiation protection material arranged therebetween in an inert gas atmosphere, andconnecting the at least two layers with each other,wherein in a region between the at least two layers a gas pressure is reduced from an initial pressure to a processing gas pressure while the at least two layers are being connected with each other, andwherein the processing gas pressure is selected such that inside a sheath of the radiation protection material formed by connecting the at least two layers a gas pressure is less than 1 bar at 23° C. 2. The method according to claim 1, wherein at least one of the layers is pressed toward the radiation protection material in order to remove at least part of the gas present between the at least two layers. 3. The method according to claim 2, wherein at least one of the layers is pressed toward the radiation protection material by means of a movable element of a welding apparatus in order to connect the at least two layers. 4. The method according to claim 1, wherein the at least two layers and the radiation protection material are placed in a processing chamber with a gas pressure reduced relative to an ambient gas pressure or with an inert gas atmosphere. 5. The method according to claim 1, wherein the at least two layers are connected with each other along a connecting line completely or partially extending around the radiation protection material. 6. The method according to claim 5, wherein the at least two layers are connected with each other along an additional connecting line not extending around the radiation protection material. 7. The method according to claim 1, wherein a carrier material and/or a shaped part are additionally incorporated between the at least two layers. 8. The method according to claim 1, wherein the at least one plastic-containing element comprises at least one plastic-containing woven fabric or a polyurethane film. 9. The method according to claim 1, wherein the at least one plastic-containing element or at least one of the two layers is translucent. 10. The method according to claim 1, further comprising the step of attaching a fixing member to the at least two layers for mounting the radiation protection element to a patient table for protection below or above the patient table or to a radiation protection cart. 11. A radiation protection element, comprising:at least one radiation protection material, anda sheath with an internal volume in which the at least one radiation protection material is arranged, wherein the internal volume has a negative gas pressure or wherein the internal volume comprises an inert gas,wherein a gas pressure is less than 1 bar in the internal volume at a temperature of 23° C. 12. The radiation protection element according to claim 11, wherein the sheath comprises a connecting line of two layers of the sheath, said connecting line completely or partially extending around the radiation protection material. 13. The radiation protection element according to claim 12, wherein the sheath comprises an additional connecting line of two layers of the sheath, said additional connecting line not extending around the radiation protection material, wherein the additional connecting line runs around an opening within the sheath. 14. A radiation protection element, comprising:at least one radiation protection material, anda sheath with an internal volume in which the at least one radiation protection material is arranged, wherein the sheath planarly abuts the at least one radiation protection material wherein a gas pressure is less than 1 bar in the internal volume at a temperature of 23° C. 15. The radiation protection element according to claim 14, wherein the sheath comprises a connecting line of two layers of the sheath, said connecting line completely or partially extending around the radiation protection material. 16. The radiation protection element according to claim 15, wherein the sheath comprises an additional connecting line of two layers of the sheath, said additional connecting line not extending around the radiation protection material, wherein the additional connecting line runs around an opening within the sheath. 17. A radiation protection apparatus, comprising:a radiation protection element or a plurality of radiation protection elements, wherein said radiation protection elements comprise at least one radiation protection material, and a sheath with an internal volume in which the at least one radiation protection material is arranged, wherein the internal volume has a negative gas pressure or wherein the internal volume comprises an inert gas. 18. The radiation protection apparatus according to claim 17, wherein the radiation protection apparatus comprises a patient table with a fixing apparatus to which the radiation protection element is mounted for protection below or above the patient table or to which the plurality of radiation protection elements is mounted for protection below or above the patient table, or wherein the radiation protection apparatus comprises a radiation protection cart to which the radiation protection element is mounted or to which the plurality of radiation protection elements is mounted. 19. A radiation protection element, comprising:at least one radiation protection material, anda sheath with an internal volume in which the at least one radiation protection material is arranged, wherein the internal volume comprises an inert gas.