A system comprising a sample body and a storage device for storing a sample body, - wherein the sample body to be accommodated has an upper part and, along the axis of symmetry thereof, a central part adjoining the upper part, - wherein the storage device has a recess, - wherein the recess comprises an upper region and a lower region, - wherein the recess is shaped to accommodate the sample body, - wherein the walls of the recess are formed such that, when the sample body is accommodated, the central part of the sample body to be accommodated is distanced from the walls of the recess in a direction perpendicular to the axis of symmetry, - wherein the system also has a clamp, - wherein the clamp is configured to accommodate the upper part of the sample body in a frictionally engaged manner, - wherein the clamp has a first width within the plane of extension and perpendicularly to the axis of symmetry of the sample body to be accommodated, - wherein the upper part of the sample body has a second width within the plane of extension and perpendicularly to the axis of symmetry of the sample body to be accommodated, - wherein said first width is greater than said second width, - wherein the walls of the upper region, above the clamp, form the lateral guide for the upper part of the sample body being accommodated, - wherein the walls of the upper region form a lateral guide for the clamp in order to enable a movability of the clamp with the upper part of the sample body along the axis of symmetry of the sample body, - wherein the lateral guide is provided by the walls of the upper region resting on the upper part of the sample body to be accommodated. - wherein the sample body to be accommodated has an upper part and, along the axis of symmetry thereof, a central part adjoining the upper part, - wherein the storage device has a recess, - wherein the recess comprises an upper region and a lower region, - wherein the recess is shaped to accommodate the sample body, - wherein the walls of the recess are formed such that, when the sample body is accommodated, the central part of the sample body to be accommodated is distanced from the walls of the recess in a direction perpendicular to the axis of symmetry, - wherein the system also has a clamp, - wherein the clamp is configured to accommodate the upper part of the sample body in a frictionally engaged manner, - wherein the clamp has a first width within the plane of extension and perpendicularly to the axis of symmetry of the sample body to be accommodated, - wherein the upper part of the sample body has a second width within the plane of extension and perpendicularly to the axis of symmetry of the sample body to be accommodated, - wherein said first width is greater than said second width, - wherein the walls of the upper region, above the clamp, form the lateral guide for the upper part of the sample body being accommodated, - wherein the walls of the upper region form a lateral guide for the clamp in order to enable a movability of the clamp with the upper part of the sample body along the axis of symmetry of the sample body, - wherein the lateral guide is provided by the walls of the upper region resting on the upper part of the sample body to be accommodated.