NDT Products

Sources and Source Holders

The SENTINELTM range of double encapsulated special form sealed source assemblies caters to most industrial applications using gamma radiography.

A choice of isotopes provides solutions for the widely varying requirements demanded by different materials and site conditions. Sources with outputs ranging from less than one curie up to several hundred are available; all precision constructed to ensure the highest possible specific activities and the smallest focal spot sizes.

Source exchange is available as a service either on-site or when source projectors are returned to SENTINELTM for inspection or overhaul. Sources can be shipped in the source projector or in a suitable returnable transport container.

Source holders offered by SENTINELTM include a comprehensive choice of designs which match original equipment manufacturer specifications and are fully compatible with most current makes of gamma radiography projector.

Selenium-75 sources are available in cylindrical and quasi-spherical focals, permitting shorter SFDs and greater sensitivity on fixed geometries.

Natural and enriched Iridium-192 sources are constructed using iridium metal discs or pellets of uniform size in a welded stainless steel capsule.  Iridium plus high specific activity sources are also available.

Cobalt-60 sources are constructed using compres sion fused cobalt metal pellets confined within welded titanium and stainless steel capsules.

Ytterbium-169 sources are available in spherical and right circular cylinder focals, housed in a welded titanium alloy capsule.


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