RadBall

The Radball is a 140 mm (5½") diameter deployable, passive, non electrical gamma hot-spot imaging device that offers a 360 degree view of the deployment area. The device is particularly useful in instances where the radiation fields inside a nuclear facility are unknown but required in order to plan a suitable nuclear decommissioning strategy. The device has been developed by the UK's National Nuclear Laboratory and consists of an inner spherical core made of a radiation sensitive material and an outer tungsten based collimation sheath. The device does not require any electrical supply or communication link and can be deployed remotely thus eliminating the need for radiation exposure to personnel. In addition to this, the device has a very wide target dose range of between 2 and 5,000 rads (20 mGy to 50 Gy) which makes the technology widely applicable to nuclear decommissioning applications.