Disclosed herein are agents, methods, and kits for determining the presence or concentration of a target, or multiple targets, in a sample, in a uniplexed or multiplexed fashion. The dome section comprises a plurality of circumferentially spaced hydrostatic pressure absorption panels each located between vertically extending, circumferentially spaced ribs that absorbs at least a substantial portion of the external downwardly directed vertical forces exerted on the container and restores the container to its original shape. Furthermore, an n+ type buffer layer of which the peak impurity concentration can be higher than that of the n-type field-stop layer at 6\xd71015 cm\u22123 or more, and one-tenth or less of the peak impurity concentration of the p+ type collector layer, can be included between the n-type field-stop layer and p+ type collector layer.