Experiments typically include neutron flux monitoring, critical experiment, reactor
start-up, control rod calibration, temperature coefficient measurement, and study of the reactivity effects of devices or materials inserted in the reactor
designers told GAO's researchers that one of the major challenges they face is the cost to develop and certify a design, which can run to $1 billion or even $2 billion.
Making the case for operating a nuclear reactor
beyond expectations is not straightforward, as you might imagine.
3 and 4 reactors
at the Genkai nuclear power station in Saga Prefecture.
At its peak, the 860-megawatt reactor
generated enough electricity for approximately 650,000 homes.
Then the reactor
site will be renovated based on input from faculty and the school's Academic Facilities Planning Committee.
Japan tells the UN nuclear watchdog the hydrogen explosion at the No3 reactor
did not damage the containment vessel.
The earthquake and tsunami apparently caused damage to the emergency core cooling systems at reactors
1, 2, and 4, while reactor
3 was apparently able to shut down without problems.
Recommendation: To resolve remaining security weaknesses at foreign research reactors
that use HEU fuel, the Secretary of Energy should direct the Administrator of NNSA to, while continuing to emphasize and accelerate NNSA efforts to convert reactors
to LEU fuel use and return HEU fuel to its country of origin, work with foreign government officials and research reactor
operators in countries where security upgrades are in progress or have been completed to ensure that security policies and procedures, including those for emergency response to security incidents, fully meet IAEA guidelines.
While this reactor
could be used to breed weapons-grade plutonium by replacing the fuel every couple of months instead of on a three- or four-year cycle, this would be a long-term process requiring several years.
Not to mention that fact that the industry has been running a perfect record in terms of unplanned reactor
shutdowns for decades, with plants operating at 90.