This is the by far the most comprehensive report on PRISM technology and PRISM's UK prospects: Prism project: A proposal for the UK's problem plutonium
After decades of debate, a new reactor could help solve the UK’s plutonium problem
Of all the issues facing the UK’s nuclear sector, the problem of plutonium is perhaps the trickiest. But a solution that could feed into a perceived need for the country to resume a position of developing and building new reactor technologies in the future is currently before the Nuclear Decommissioning Authority.