Constructed of nine sets of 2 1/4"(6 cm) thick lead split rings for full shielding of a dose calibrator chamber. The positron shield gives maximum radiation protection when working with 511 KeV nuclides. The shield can either be flush mounted to a work surface or mounted on a table or cabinet.
7300-2903 Positron Chamber Shield
5126-2001 Positron Shield/Stand