Imager aids in nuclear fuel inspection

Share this on social media:

Channel Systems, a Canadian provider of nuclear safeguards, is developing an imaging device for inspecting spent nuclear fuel. The Digital Cerenkov Viewing Device (DCVD) uses a lightweight version of Resolve Optics’ 80-200mm focal length UV zoom lens.

Spent nuclear fuel emits a faint ultraviolet Cerenkov light when gamma rays from fuel assemblies interact with electrons in the cooling pond water. The DCVD equipped with UV zoom lens provides a highly-effective system that captures the Cerenkov image of spent fuel for analysis and comparison. This unique system provides inspectors with an effective tool for non-intrusive verification of spent nuclear fuel.

The DCVD UV zoom lens is wavelength-corrected to view a nuclear fuel assembly situated 13 metres away from the lens and through 10 metres of water. To meet the challenges of the application the UV zoom lens is able to optimally operate from 10 to 55ºC. Miniature motors allow accurate remote setting of both zoom and focus functions. A filter slide was incorporated in the design enabling the lens to be switched between UV (270 to 350nm) and visible (400 to 700nm) without the need to refocus the lens.

Recent News

29 July 2020

The Perseverance rover contains 19 cameras, including seven scientific instruments. It will analyse the climate and geology of Mars, looking for signs of past life, as well as monitoring the Martian atmosphere

02 July 2020

Norwegian seafood firm, Lerøy, has installed hyperspectral cameras on processing lines to sort fish. The system is able to measure the amount of blood in white fish, which gives a grade of quality

09 June 2020

Hyperspectral imaging is being used in a research programme at hospitals in Maryland and New York to investigate the prognostic value of skin findings associated with Covid-19 infection

27 May 2020

The composite picture of The Night Watch, made of 528 exposures stitched together digitally, makes it possible to zoom in on individual brushstrokes and even particles of pigment in the painting