Sentences with phrase «of radioisotope»

Earned recognition for creating the Factory Acceptance Test Procedure for the Eclipse HP / RD Cyclotron that was adopted and used by the company to demonstrate performance / reliability of the Radioisotope Delivery System.

HFIR today is a DOE Office of Science User Facility and one of the world's sole sources of the radioisotope californium - 252, used in industry and medicine.

«If the earth formed over four billion years ago, all helium should have escaped from zircons, yet the crystals are loaded with this element» «The atmosphere should be full of helium atoms, the byproducts of millions of years of radioisotope decay, but it isn't.»

Second, any sort of radioisotope dating is based on extreme extrapolation.

Nakanishi says that the effort is «nonsense», arguing that such phytoremediation would absorb only small amounts of radioisotopes.

Furthermore, most of the radiation had accumulated on the leaves and could be washed off, suggesting that the plants were not absorbing dangerous levels of radioisotopes directly from the soil.

Ted Wyka, chairman of a federal accident review board, said improperly placed or inoperative air monitors, a substandard ventilation system and mismanagement contributed to the February 14 leak of radioisotopes including plutonium.

The reactor itself became a globally dominant supplier of radioisotopes — in particular, molybdenum - 99 (Mo - 99), a workhorse of medical imaging employed for millions of scans every year.

This program supports scientific advances in the production and use of radioisotopes for research, medicine, and industrial applications for the DOE - SC Office of Nuclear Physics Isotope Program.

ANSTO, Australian Nuclear Science and Technology Organisation explains uses of radioisotopes in...

any nuclear reactor wherever located; any nuclear fuel cycle facility; any radioactive waste management facility; the transport and storage of nuclear fuels or radioactive wastes; the manufacture, use, storage, disposal and transport of radioisotopes for agricultural, industrial, medical and related scientific and research purposes; and the use of radioisotopes for power generation in space objects

Not exact matches

The next danger to avoid is radioactive fallout, a mixture of fission products (or radioisotopes) that a nuclear explosion creates by splitting atoms.

Because half of any amount of plutonium - 238 decays in 87.7 years, these radioisotope power sources now generate about three - quarters of that wattage.

«Radiocarbon dating (usually referred to as simply carbon dating) is a radiometric dating method that uses the naturally occurring radioisotope carbon - 14 (14C) to estimate the age of carbon - bearing materials up to about 58,000 to 62,000 years.»

In the 1970s, scientists using radioisotope dating could pinpoint the age of a 100 million - year - old rock to within a few million years.

For dating ancient life (what lived millions, not just thousands, of years ago), the radioisotope world includes two camps: those who tell time by uranium and those who use potassium.

The government is evaluating experimental techniques for cleansing the water of a key radioisotope, tritium.

Beta - methyl - p - iodophenyl - pentadecanoic acid (BMIPP) is a radioisotope whose uptake is an indicator of fatty acid metabolism in the heart.

When radioisotopes lodge in certain organs — such as iodine - 131 in the thyroid gland — the constant bombardment of surrounding tissue can overwhelm repair mechanisms and trigger cancer.

Other short - lived radioisotopes may also be present — possibly enough, a radiation expert who did not wish to be named told New Scientist, to warrant temporary relocation of local inhabitants.

Radioisotope power systems convert heat from the natural radioactive decay of the isotope plutonium - 238 into electricity.

The DOE's Office of Nuclear Energy develops, manufactures, tests and delivers radioisotope power systems for space exploration and national security missions and maintains responsibility for nuclear safety throughout all aspects of the missions.

To evaluate this, a radioisotope scan was done, of a type designed to light up areas of infection or necrosis.

«Radioisotope power systems are a key tool to power the next generation of planetary orbiters, landers and rovers in our quest to unravel the mysteries of the universe.»

NASA's Radioisotope Power System (RPS) program, managed by NASA Glenn Research Center in Cleveland, is funding the development of new, higher efficiency thermoelectric materials that could be incorporated into a next - generation enhanced MMRTG that would provide about 25 percent more power at the start of a typical mission, and 50 percent more power at the end of a mission.

The radioisotope has a half - life of about 30 years.

► Iran's agreement on Tuesday to «dismantle large pieces of its nuclear program in exchange for lifting crippling economic sanctions... paves the way for a rapid expansion of scientific cooperation with Iran in areas as diverse as fusion, astrophysics, and cancer therapy using radioisotopes,» Richard Stone wrote that day at ScienceInsider.

Many have high hopes for a new power source called the Advanced Stirling Radioisotope Generator (ASRG), which uses a smaller amount of plutonium - 238 and is more efficient than previous radioisotope poRadioisotope Generator (ASRG), which uses a smaller amount of plutonium - 238 and is more efficient than previous radioisotope poradioisotope power sources.

Then the blast of radiation emitted by the radioisotope would destroy the... tumor cells nearby.»

The CTBTO, a nuclear - test monitoring body based in Vienna, maintains a global network of seismic and radioisotope detectors, as well as other instruments.

In a collaborative study appearing in Nature, researchers from Japan describe how gamma rays from lightning react with the air to produce radioisotopes and even positrons — the antimatter equivalent of electrons.

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.

Von Hippel speculates that the remaining centrifuges there could be used to make purer preparations of mercury isotopes for fluorescent lighting, for example, or for enriching molybdenum - 98, which could then be irradiated with neurtons to produce molybdenum - 99, a radioisotope used in medicine.

In the worst case, based on a 100 - kiloton blast at a depth of 700 metres close to the edge of the atoll, radioisotopes could reach the ocean in 25 to 50 years.

In the best case, based on a 100 - kiloton blast at a depth of 1000 metres and well away from the edge of the atoll, radioisotopes would take 750 years to reach the limestone, where fissures stretching to the ocean have appeared as a result of previous tests.

The agreement, signed today in Vienna, paves the way for a rapid expansion of scientific cooperation with Iran in areas as diverse as fusion, astrophysics, and cancer therapy using radioisotopes.

Iranian officials say the chief aim of the 40 - megawatt fission reactor, under construction in the central province of Markazi, is to make radioisotopes for medicine.

Achieving that longer lead time requires blocking Iran's four routes to nuclear weapons: through its Natanz and Fordow uranium enrichment facilities, where thousands of centrifuges separate uranium isotopes; through plutonium production at the Arak heavy water reactor, which Iran says is needed to produce medical radioisotopes; and by way of a covert path involving undisclosed facilities.

Opponents of the tests have warned that potentially harmful radioisotopes, especially caesium - 137, strontium - 90 and plutonium isotopes, will leach from rocks fractured by the blasts.

Joanna Fowler has made significant contributions to brain research and the understanding of diseases such as addiction, which she studies using positron emission tomography (PET), an imaging technique that measures the concentration and movement of a positron - emitting radioisotope in living tissue.

The first system — radioisotope thermoelectric generators, or RTGs — taps heat released from the natural decay of a radioactive element, such as plutonium.

«HFIR remains one of the world's most capable reactor - based neutron science, radioisotope production and materials irradiation facilities, and we expect that to continue for many years.»

«This strategy may allow better penetration of larger tumours because the radioisotope can make its way deep into the tumour before releasing the toxic radioactivity trapped inside.»

Emerging molecular imaging agents join tumor - seeking antibodies and signaling radioisotopes in one radiopharmaceutical that is injected at the time of imaging in order to track and report active receptors.

Some of the Ares mission's equipment is powered by a radioisotope thermoelectric generator (RTG).

To address concerns about the spacecraft's radioisotope thermoelectric generators, which are commonly used for NASA missions, NASA responded by issuing a supplementary document about the flyby and detailing the agency's methodology for protecting the planet, saying there was less than a one - in - a-million chance of an impact occurring.

The Therapy Center of Excellence is dedicated to all aspects of the development and utilization of Targeted Radioisotope Therapy (TRT) as an alternative to other treatments.

The Therapy Center of Excellence is an organizational component within the SNMMI dedicated to all aspects of the development and utilization of Targeted Radioisotope Therapy as an alternative to other treatments.

The Physics Mechanical and Electronics workshops have recently completed the design and construction of a bespoke 3D radioisotope scanning platform for the Nuclear Physics Group.

The spacecraft, powered by a radioisotope thermoelectric generator, managed to acquire 50 gigabits of data during the flyby, where it came within 7,800 miles of the small planet.