Description The active material is enclosed in metal foil fixed in a cylindrical mount provided with a stem of 4mm diameter. The foil is further protected from accidental damage by a wire gauze cap over the open window’ of the mount. The nature and strength of each source is clearly engraved on its mount and it is also colour coded for identification. Each is supplied in a small lead castle’ in a suitably labelled MDF storage box 100 x 75 x 65mm high. A data sheet is enclosed with each.5μCi (185 kBq) of Strontium90 in equilibrium with its daughter nuclide Yttrium90, incorporated in a silver disc allowing the major proportion of the Beta radiation to escape.• Emissions: β• Half-life:28 years (strontium), 64 hours (yttrium)• Colour code: YellowPlease note: customers must have a valid licence and storage facility to purchase this productImages features 261-025, 261-026 & 261-027. ( 261-025 )
