Abstract: A system for supporting a member on a support post includes a wedge assembly, having a tapered face and mountable on the support post, and a collar secured to the member to be supported. The wedge assembly has a camming surface, and the collar has a camming portion for abutting the camming surface. In addition, a locking mechanism is mounted to the collar and press-fits against the wedge assembly.

Abstract: A shelf support system includes at least one support post (12), a tapered wedge member (20) located on the support post (12) and a supporting assembly (14). The supporting assembly (14) is structurally secured to a shelf frame (10) and includes a locking mechanism (18) rotatably supported by a collar (16). The locking mechanism (18) has a first position for press-fitting the wedge member (20) against the support posts (12) and a second position for allowing the shelf frame (10) to slide over the support post (12) and wedge member (20).

Abstract: The invention provides a scintillation detector for nuclear radiation which comprises a synthetic diamond having a nitrogen impurity concentration of 150 ppm or less. The detector has solvent (or oxides thereof) impurity concentrations of 1000 ppm or less, where the solvents are any of the following: Ni, Cu, Mn, Al or Cr, or combinations thereof. The detector has Fe and Co impurity concentrations of less than 10 ppm. A practical version of the detector includes an optical fibre and a photomultiplier tube, the optical fibre collecting light emitted by the diamond and channelling it to the photomultiplier tube.