Nuclear Lifecycle 8

Which of these are reasons to decommission a nuclear facility?

• Political decision

• Economical reasons

• Following an accident

• Public perception

What is the most common decommissioning option in the USA?

• Immediate dismantling (decon)

• Deferred dismantling (safstor)

• Entombment

• None

What is the main advantage of deferred dismantling?

• To allow radioactivity to decay

• To save money

• To use workers from the facility

• To ensure there are no changes to legislation

How many reactors have been entombed?

• 3

• 4

• 5

• 6

How is decommissioning funded? (select all that apply)

• Prepayment into a a dedicated account

• Sinking fund on electricity rates to consumers

• Insurance

• By the government

Which was the first power station in the UK to be decommissioned?

• Berkeley

• Sizewell

• Dungeness

• Heysham

Why are Magnox and AGR reactors expensive to decommission?

• They are old

• They use graphite

• They are very large

• They are gas cooled

Why is graphite difficult to decommission?

• It takes up a lot of space

• It contains C-14 as an irradiation product

• It can't be recycled

• It burns too easily

What is the main barrier for recycling materials from decommissioned nuclear facilities?

• Public acceptance

• Cost

• Restrictions on release limits

• Lack of facilities

Where is the UK's metal recycling facility?

• Drigg in Cumbria

• Hinckley Point in Somerset

• Lillyhall in Cumbria

• Westinghouse in Lancashire