Sentences with word «fissile»

In addition, the Council urged the Conference on Disarmament to quickly negotiate a treaty banning the production of fissile materials for explosive devices.

It refers both to the assembling of critical masses of fissile material for the new weapons, and to the bringing together of the right concentrations of brainpower and other resources to achieve the goals of the enterprise.

To make uranium suitable for an atomic bomb, you have to somehow enrich it up to weapons grade, so that it is almost pure U 235, the element's most fissile isotope.

In addition, nuclear engineers have uncovered ways to coax more heat out of fissile uranium fuel before it inevitably fizzles out.

Fast reactors using uranium fuel inherently create more fissile atoms per fission that uranium - fueled thermal reactors.

Frank von Hippel, author of a new report on highly enriched uranium, speaks at the 15 March meeting of the International Panel on Fissile Materials.

This also argues against alternate fissile fuels such as thorium.

The nuclear - weapon states still have enough fissile materials in their weapon stockpiles for tens of thousands of nuclear weapons.

Fast reactors with an elegant ability to «breed» more fissile materials than they consumed in fuel, seemed destined to play a major part in helping the world to solve its energy needs.

Perry urged President Barack Obama not to give up on the goal of nuclear disarmament during his last year in office, and to push for a breakthrough deal to control fissile material at the upcoming Nuclear Summit in Washington D.C.

When nations acquire nuclear weapons, they usually develop dedicated facilities to produce fissile materials rather than collecting nuclear materials from civilian power plants.

Burning plutonium and other fissile materials in nuclear reactors may be a good way to get rid of the dangerous materials

The agreement, known as the Joint Comprehensive Plan of Action, would slow Iran's «breakout time» — the time needed to produce enough weapons - grade fissile material for one bomb — from an estimated 2 to 3 months to at least a year.

It is the only fissile Uranium isotope being able to sustain nuclear fission.

Uranium - 235 is the only fissile radioactive isotope which is a primordial nuclide existing in the nature in its present form since before the creation of Earth.

Reactors employing mixed oxide fuel may require extra control rods, made of boron or other neutron - absorbing materials, to slow down more fissile plutonium.

In March 1995, President Clinton declared 200 metric tons of nuclear weapons fissile materials to be surplus to national defense needs.

Nov. 13, 2017 - Gathered in a control room deep in the Nevada desert, a team of researchers from Lawrence Livermore and Los Alamos national laboratories watched safety monitors as a carefully layered stack of plutonium inched toward «critical» — the point at which fissile material can sustain a nuclear chain...

Such assistance may be a matter of state policy or a matter of sympathetic officials aiding terrorists for ideological reasons or corrupt officials selling weapons or even fissile material.

Reports that Iraq was purchasing fissile material surfaced in 2001, and according to a declassified Donald Rumsfeld memo the focus was twofold: WMD and building momentum for regime change in Iraq.

He also suggested Britain, like Japan, could retain a stockpile of safeguarded fissile material that could be turned into a nuclear missile within six to 24 months.

Krauss and his Bulletin colleagues credit Obama's election as a major part of new arms reduction talks with Russia, the now - stalled negotiations with Iran to close its nuclear enrichment program, and the potential of a U.S. - led effort to secure all loose fissile material in four years.

Uranium makes up the bulk of the spent nuclear fuel (around 94 percent); this is unfissioned uranium that has lost most of its uranium 235 and resembles natural uranium (which is just 0.71 percent fissile uranium 235).

Furthermore, there is no evidence that any terrorist organisation or government has been trying to acquire fissile material in this way.

Uranium 238 is not fissile; it is called «fissionable» because it sometimes splits when hit by a fast neutron.

Some of these emitted neutrons then strike other nearby fissile atoms, causing them to break apart, thus propagating a nuclear chain reaction.

If the neutrons hit fissile material, gamma rays are produced that can be instantly picked up by low - cost detectors.

The team has verified the neutron concept through extensive simulations and now hopes to prove that it works through tests of actual fissile materials, in collaboration with a national laboratory that can provide such materials.

The aim is to prevent fissile material from being sold or stolen for use in weapons.

Fallout is a mélange of the vaporized environment — soil and structures that were near the blast — laced with fission products (radioisotopes created when fissile materials like uranium or plutonium fission), activation products (radioisotopes formed when the blast radiation transmutes shielding and other bomb components), and residual nuclear material.

The reactor in an ADS contains too little fissile material in its core to sustain a nuclear chain reaction.

McMillan initially promised to train fissile material handlers to be more heedful of plutonium - handling perils, for example, and to bring the inventory and safety documents guiding their work up to date.

Storage and disposal options for 50 metric tons of surplus plutonium (Pu) were discussed in the December 1996 Storage and Disposition of Weapons - Usable Fissile Materials Final Programmatic Environmental Impact Statement (PEIS).

The breeding ratio is a measure of how much new fissile fuel a reactor is capable of producing as it runs.

It was the first fissile Uranium isotope to be discovered.

Thorium plants are also subject to explosions of their own: where in - line, high temperature and pressure «reprocessing» produces highly toxic radioactive fissile products.

Opportunities also exist at the back end of the cycle to extract fissile material from the spent fuel removed from reactors.

Hank Roberts, on 9 April 2011 at 8:40 AM — Also want Gen IV to consume unwanted military fissile materials in the USA and maybe elsewhere.

They uncovered no credible information that al Qaeda had obtained fissile material or acquired a nuclear weapon.

She is a co-author of IEER's report on fissile materials disposition and of several reports on ozone layer protection.

It is the ratio of the number of fissile atoms created with the number of fissions occurring.

For the purpose of this Exclusion; i) Utilization of Nuclear weapons of mass destruction means the use of any explosive nuclear weapon or device or the emission, discharge, dispersal, release or escape of fissile material emitting a level of radioactivity capable of causing incapacitating disablement or death amongst people or animals (including in connection with Terrorist Activity).

Reactor No. 3 at the Fukushima Daiichi station runs on so - called mixed oxide (MOX) fuel, in which uranium is mixed with other fissile materials such as plutonium from spent reactor fuel or from decommissioned nuclear weapons.

By comparison, nuclear power plants consume around 1.5 metric tons of fissile uranium per year.

While fast reactors are up to 200x more resource efficient, they require 3x or more fissile atoms to start up initially.

This is what guarantees protection from nuclear fissile material at our ports.

And the International Atomic Energy Agency (IAEA) had evidence that Iran had been researching how to convert the fissile material from these enrichment facilities into a nuclear bomb.