Radioactive decay happens when a radioactive substance emits a particle.
FORBES: Radioactive Decay Rates May Not Be Constant After All
To call Rangers a poisoned chalice is a bit like calling a mug of radioactive chemicals a nice cup of coffee.
FORBES: What Can We Learn From the Financial Meltdown of Glasgow Rangers FC?
And what if the waste produced by such a reactor was radioactive for a mere few hundred years rather than tens of thousands?
FORBES: Is Thorium the Biggest Energy Breakthrough Since Fire? Possibly.
The exercise, with a command centre in Poundbury, Dorchester, will test their response to the scenario of a radioactive leak from a submarine with a damaged nuclear reactor core.
They were forced to conclude that a half-dozen of them had dropped in volume and were leaking anywhere from a few gallons to a few hundred gallons of radioactive material a year.
FORBES: Nuclear Waste Leaks Worse than Thought in Washington
It may also be that books were still a little radioactive then, a little dangerous.
Meanwhile, Japan's recall of Meiji baby formula because of pollution by a radioactive substance has also raised a lot of concern.
Over 50 million Americans might be exposed to a radioactive plume in the event of a Juragua accident.
CENTERFORSECURITYPOLICY: A Chernobyl reminder just off our shores
There are about 80 different sequences of decay that fission products can follow, and roughly a quarter reach a completely non-radioactive state within a day.
FORBES: Explainer: What Caused The Incident At Fukushima-Daiichi
The test uses a chemical called florbetapir, known by the brand name Amyvid, which is a radioactive agent that tags clumps of a sticky substance called an amyloid.
The operation came a day after workers plugged a highly radioactive water leak from a concrete pit connected to the number two reactor, using sodium silicate - known as ''water glass''.
In a lab at Brookhaven National Laboratory on Long Island, Gene-Jack Wang is injecting overeaters with a radioactive sugar solution and putting them into a positron-emissions tomography machine to see how their brains react to food.
This would typically be a manufacturer, distributor, licensed radioactive waste broker, or a licensed low-level radioactive waste disposal facility.
FORBES: Radioactive Tritium Leaks from Nuke Plant; Also Two Million EXIT Signs
The technique is so sensitive that it can detect a single radioactive carbon atom hiding among a quadrillion (one million billion) ordinary ones.
The power plant has been shut down since this winter, when a small amount of radioactive gas escaped from a steam generator during a water leak.
Thermoelectric coupling uses heat from the decay of a radioactive fuel (as opposed to the full-scale nuclear fission which powers a reactor on Earth) as its energy source.
ECONOMIST: A more efficient way to make electricity in spacecraft
Unless it somehow managed to burrow a very long way down before exploding, such a weapon detonated beneath the earth's surface would throw up huge amounts of radioactive debris, a danger to all.
The machine creates a safe radioactive solution which can be injected into patients before a scan.
Extensive work is under way to determine the source of radioactive particles at a Fife beach.
BBC: Dalgety Bay radiation: Diggers to be used in pit testing
Hanford was leaking radioactive waste at a rate of 150 to 300 gallons annually.
FORBES: Nuclear Waste Leaks Worse than Thought in Washington
Neutrinos react with chlorine in the fluid and change it to radioactive argon, a gas.
However, Janine Allis-Smith, from the campaigning group Cumbrians Opposed to a Radioactive Environment, disagreed.
Tritium is a radioactive substance produced by the reactors from nuclear-powered submarines based at the Devonport yard.
Further work to determine the source of radioactive particles at a Fife beach will begin next week.
BBC: Dalgety Bay radiation: Tests to begin at beach next week
Some geologists falsely believed heat from the waste could melt surrounding rock and form a radioactive volcano.
Sellafield nuclear firm has pleaded guilty to sending bags of low-level radioactive waste to a landfill site.
Xenon-133 is a radioactive noble gas produced during nuclear fission that poses no concern at the detected level.
The birds at Fukushima are only beginning to face the evolutionary challenge of living in a radioactive world.
Accordingly, by observing how much of a radioactive substance has decayed, scientists are able to determine how old that substance is.
FORBES: Why Marco Rubio Needs To Know That The Earth Is Billions Of Years Old
First, a radioactive waste water spill outside of Chicago that went unreported.
应用推荐