Subsea Expo

The voice of the UK subsea industry

Game Changers lunchtime Technology Talk (Webinar)

Game Changers lunchtime Technology Talk (Webinar)

27 January 2021
Venue: Webinar (12:00 13:00 GMT)

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Hybrid gamma-optical video imaging Sarah Bugby, Loughborough University

The need to identify and localise areas of radioactivity is common across the nuclear industry. For some tasks, such as Post Operational Clean Out (POCO) in gloveboxes, this need is compounded by restricted access and poor visibility, and a preference for real time feedback so that cleaning interventions can be seen to be making a difference.

Originally developed for nuclear medicine, the Gamma Optical Video Imaging (GOVI) system combines optical and high spatial resolution gamma imaging to produce a real-time display of the area being scanned. GOVI can provide the operator with an image showing the location, size, shape and relative activity of gamma emitting materials with a camera head small enough to be posted through a 6-inch glovebox port. Due to the design of the camera, this can be done in real time without the need for post-processing this means the camera can operate in video mode, constantly updating the images as the camera is moved.

In this talk, Sarah will discuss the technology behind the GOVI system, results from initial testing, and recent developments in building a system suitable for an on-site demo for POCO.

Ultrasonics for blockage mobilisation - Habiba Lais, Brunel Innovation Centre

The aim of POCO at Sellafield is to reduce the risk and hazard in a facility by safely removing the nuclear and chemotoxic inventory and, ultimately, reducing the lifetime costs of the redundant plants.

Brunel Innovation Centre has developed an alternative technique to mobilise adhered solids using a non-invasive in-situ ultrasonic cleaning device for pipeline blockage breakdown.

In this talk, Habiba will present the novel approach to dislodging blockages by designing an array of externally attached high power ultrasonic transducers to generate acoustic cavitation. To assist with mobilisation of the material, optimisation of the ultrasonic wave propagation was demonstrated in laboratory investigations across different lengths of blockages.

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