Patent ID: 7661738

Claim:
A radiation detection unit for mounting a radiation sensor having a radiation collection end and an interface end to a hoist attachment of a container crane in which mechanical energy that degrades operability of said radiation sensor is propagated, said radiation detection unit comprising: a housing adapted to be attached to said hoist attachment, said housing having an interior surface and an exterior surface wherein a portion of said exterior surface is in intimate contact with said hoist attachment when said housing is attached thereto and further wherein major dimensions of said housing are selected to exceed corresponding major dimensions of said radiation sensor; and a pair of isolators of unitary construction of a mechanical energy absorbent material, each of said isolators having a body portion and a plurality of projections extending outwardly from said body portion, said body portion of each of said isolators being adapted to engage said radiation sensor proximal a respective one of said radiation collection end and said interface end, each of said projections being disposed spatially intermediate said body portion from which each of said projections extends and said interior surface of said housing and having a distal end in intimate contact with said interior surface of said housing wherein said radiation sensor when engaged by said isolators is carried bidirectionally along each axis of three dimensional space in a spaced apart relationship to said interior surface of said housing and further wherein a length of each of said projections between said distal end and said body portion from which each of said projections extends is selected to attenuate substantially said mechanical energy that is induced at said distal end and propagates along said length of each of said projections prior to said propagated energy being incident upon said body portion from which each of said projections extends whereby said radiation sensor is isolated from said mechanical energy.