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  cross-referenced news and research resources about

 chemical element americium

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updated Thu. May 3, 2018

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For instance, ionization smoke detectors use a small amount of radioactive material and americium-241 to detect smoke. Moreover, almost all smoke detectors from photoelectric to ionization models, contain circuit boards. These need to be disposed off carefully as they contain toxic materials like lead.
Analysis of air samples collected over months by the Washington Department of Health during 2017 found very small amounts of plutonium or americium near Highway 240 and the K Reactors near the Columbia River. The samples were collected on Hanford land closed to the public, but not far from areas ...

"Separating americium is very challenging since actinides and fission products, specifically lanthanides, have very similar properties," said ORNL organic chemist Santa Jansone-Popova, lead author of the study, which was published in the American Chemical Society journal Inorganic Chemistry. "We've ...
State monitoring has found that plutonium and americium particles traveled as far as 10 miles from the demolition site, near Richland. Vehicles, office buildings and workers have been tested for traces of radioactive contamination. A plan for safer demolition has yet to be released. The project has been ...
State monitoring has found that plutonium and americium particles traveled as far as 10 miles from the demolition site, near Richland. ... Washington State Department of Health officials also have been concerned as air monitoring found traces of plutonium and americium contamination spread to other ...
One of the driving concepts behind the research is that pyroprocessing would not completely isolate the plutonium but would instead result in a mixture of plutonium and other fissionable actinides such as neptunium, americium, and curium. In theory, this would reduce both the volume of waste from the ...

A group of specialists, who inspected the site, concluded that it was Americium–Beryllium neutron source used for geophysical studies. The commission declared that the substance had no life-threatening effects. The cylinder bore the inscription "USA. 7A Type a radioactive material." It was contained in a ...
5—, Sonic Run, m, 5, Song of the Sword–Millenium Beauty, by New Way. ($6,000 2015 HERDEC). O-Larry Darter, B-Cowboy Stables, LLC (OK), $4,380. 6—, Americium, f, 4, Brilliant Speed–Sweet Maple, by Big Brown. O-Jose Luis Espinoza, B-Jose Luis Espinoza (KY), $2,409. Winning Time: 1:10 4/5 (ft) ...
It found traces of Americium-241 in two air filters. Even if the particles were microscopic they could still harm someone's health. The cars belonged to Hanford site workers. This is the latest in the investigation into Hanford's spread of contamination. Seattle Times inspired by our “New to Town” Issue: I mean, ...
A veteran worker of the Hanford nuclear site has learned that a car filter removed and tested by a scientist in Boston came up contaminated with the radioactive isotope of americium 241. The worker's car had been deemed “clean” in surveys conducted in December and February by the Hanford government ...
The device was stolen out of the back of a truck owned by the local engineering firm Geogrupo del Centro. Nuclear densimeters are devices used by engineers to measure soil density. They contain small amounts of the radioactive materials Americium-241, Beryllium, and Caesium-137, and are labeled as ...
You can also check in with one of the other universities in Americium, or narrow the search to Californium, to see who has comparable Technetium. After all, it's well-established that it's hard to compete with us across the Bay. You might as well try to reach Neptunium or Plutonium by yourself! Perhaps ...
But the spread of particles contaminated with plutonium or americium has gone beyond the 200 West Area, the central Hanford area where the Plutonium Finishing Plant is located. He said that worker cars with specks of radioactive contamination were driven into town. Although the Department of Health is ...
Whatever is left of that tiny bit of americium apparently is not worrisome. The state's Environmental Protection Agency recommends that such smoke and carbon-monoxide detectors be disposed of in the household trash, KNIB says. Just remove the batteries and consider securing it in a heavy-duty zippered ...
has begun a special inspection at a facility in suburban Maryland following a worker's potential exposure to radioactive contamination. A five-member NRC team began the inspection Tuesday after an incident last month when a glass ampule containing americium-241 —a radioactive substance — broke in ...
After pioneering American radiochemist Glenn Seaborg voiced his suspicions that the elements after and including uranium constitute a distinct post-actinium series that he called the actinides, he had another hunch. In 1954 he suggested that americium – the next-heaviest element after plutonium and ...
Americium, a silvery-white, synthetic element, is created during nuclear reactions of heavy elements. The element and its isotopes have very few but important uses including smoke detectors found in nearly all buildings and the potential to power future space missions. Americium is a highly radioactive ...

The article reported that the radioactivity level found in the air filters of two vehicles that had been parked at Hanford was about one picocurie of americium per gram of the material tested. I imagine that many of your readers have no idea of the magnitude of a picocurie; it amounts to only two radioactive ...
The article reported that the radioactivity level found in the air filters of two vehicles that had been parked at Hanford was about one picocurie of americium per gram of the material tested. I imagine that many of your readers have no idea of the magnitude of a picocurie; it amounts to only two radioactive ...
The device was stolen out of the back of a truck owned by the local engineering firm Geogrupo del Centro. Nuclear densimeters are devices used by engineers to measure soil density. They contain small amounts of the radioactive materials Americium-241, Beryllium, and Caesium-137, and are labeled as ...
You can also check in with one of the other universities in Americium, or narrow the search to Californium, to see who has comparable Technetium. After all, it's well-established that it's hard to compete with us across the Bay. You might as well try to reach Neptunium or Plutonium by yourself! Perhaps ...
But the spread of particles contaminated with plutonium or americium has gone beyond the 200 West Area, the central Hanford area where the Plutonium Finishing Plant is located. He said that worker cars with specks of radioactive contamination were driven into town. Although the Department of Health is ...
The highest measurements were in November and December, according to the letter sent Tuesday by Clark Halvorson, assistant secretary of the state Department of Health. Air samples, in some locations, had concentrations of americium and plutonium at five to 10 times federal emission standards for a ...
The results showed plutonium and americium, another radioactive material, in the air at levels below regulatory limits outside the radiological control zone, an area set up to contain any spread of radioactive contamination. “My expectation is that no contamination above background would be detected,” ...
If the letter “I” is in the model number or there's any mention of radioactive material, like Americium-241, then it's an ionization model. “What kind of smoke detector do you recommend?“ For bedroom hallways, we recommend installing a smoke/heat detector combo that uses photoelectric technology.
Testing showed the particles contained the radioactive isotopes of plutonium and americium. On June 8, approximately 350 Hanford workers were ordered to “take cover” after monitors found airborne radioactive contamination. At the time Hanford workers said the event was “precautionary” and that ...
Testing showed the particles contained the radioactive isotopes of plutonium and americium. The PFP job is risky because massive structures being demolished were so lethally radioactive that workers throughout the Cold War could not enter rooms where plutonium buttons were being created.
Whatever is left of that tiny bit of americium apparently is not worrisome. The state's Environmental Protection Agency recommends that such smoke and carbon-monoxide detectors be disposed of in the household trash, KNIB says. Just remove the batteries and consider securing it in a heavy-duty zippered ...
A five-member NRC team began the inspection Tuesday after an incident last month when a glass ampule containing americium-241 —a radioactive substance — broke in a National Institute of Standards and Technology laboratory used to prepare radioactive samples. Test results indicated the employee ...
The global company that owns the land says the radioactive material called americium-241 was further encased inside a smaller steel drum and sealed air-tight before someone finally took it away. But a letter state officials sent to Thermo Fisher Scientific last summer indicates some toxic material may still ...
After pioneering American radiochemist Glenn Seaborg voiced his suspicions that the elements after and including uranium constitute a distinct post-actinium series that he called the actinides, he had another hunch. In 1954 he suggested that americium – the next-heaviest element after plutonium and ...
According to news reports, five workers were accidentally exposed to high levels of radiation at the Oarai nuclear research and development center in Tokai-mura, Japan on June 6th. The Japan Atomic Energy Agency, the operator of the facility, reported that five workers inhaled plutonium and americium ...
It is the only star believed to contain short-lived radioactive elements called actinides, with atomic numbers ranging from 89 to 103, such as actinium, plutonium, americium and einsteinium. Only one other star, HD 25354, has even come close, but its hints of americium and curium are on shakier footing.
The decay of radioactive isotopes, like those of plutonium and americium, drive generators that can power missions to space that run for decades. The multi-mission radioisotope thermoelectric generator used on the Mars Science Laboratory. It used plutonium-238 as a heat source. Credit: NASA/Wikimedia ...
Americium, a silvery-white, synthetic element, is created during nuclear reactions of heavy elements. The element and its isotopes have very few but important uses including smoke detectors found in nearly all buildings and the potential to power future space missions. Americium is a highly radioactive ...
The most common type is the ionization smoke detector, which relies on an ionization chamber and a small amount of a radioactive element called Americium-241 (Mental Floss, “How Do Smoke Alarms Work?” 01.08.2013). Essentially, this radioactive material emits alpha particles that ionize (or remove an ...
It found traces of Americium-241 in two air filters. Even if the particles were microscopic they could still harm someone's health. The cars belonged to Hanford site workers. This is the latest in the investigation into Hanford's spread of contamination. Seattle Times inspired by our “New to Town” Issue: I mean, ...
A veteran worker of the Hanford nuclear site has learned that a car filter removed and tested by a scientist in Boston came up contaminated with the radioactive isotope of americium 241. The worker's car had been deemed “clean” in surveys conducted in December and February by the Hanford government ...
They're finding traces of plutonium and americium. Some of that contamination is escaping the demolition site and getting into areas that are publicly accessible. John Martell is the manager of the state Department of Health's Office of Radiation Protection. He said in his more than two decades there, he's ...
Photoelectric smoke detectors can be easily disposed of in the recycling or trash bin, but ionization chamber detectors contain a small amount of radioactive americium 241 and need to be disposed of accordingly. Smoke detectors that contain radioactive material are required to have a yellow international ...
Monitors at the federal Hanford Nuclear site found plutonium and americium contamination up to 10 miles from a troubled demolition project that was suspended in December due to concerns about the spread of radioactive particles. The monitoring last year was conducted in the federal nuclear site by the ...
Monitors at the federal Hanford Nuclear Site found plutonium and americium contamination up to 10 miles from a troubled demolition project that was suspended ... The state monitoring picked up signs of radioactive americium and plutonium particles from the demolition of the Plutonium Finishing Plant that ...
In this June 13, 2017, file photo, the Plutonium Uranium Extraction Plant, right, stands adjacent to a dirt-covered rail tunnel, left, containing radioactive waste, amidst desert plants on the Hanford Nuclear Reservation near Richland, Wash. Radioactive plutonium and americium have been found in air samples collected where ...
David broke apart smoke detectors to obtain americium-241, commercial gas lanterns provided him thorium-232, and with the help of a Geiger counter, he found an antique luminous clock that contained a vial of radium paint used to keep the clock face glowing. He even purchased $1000 worth of batteries ...
The research conducted at ACE will integrate both experimental and computational approaches to analyze radioactive materials, including the elements americium, neptunium, plutonium and uranium, taking advantage of specialized facilities developed at Notre Dame. Further, the team of researchers will ...
“There is a high concentration of the element Americium here. We don't know why it's in this spot; perhaps a worker at the plant stomped his ...
Then Washington Department of Health air sampling results came back in August showing radioactive plutonium and americium particles in ...
... a Nist employee was exposed to levels of radiation above the annual regulatory limits when a two-decades-old ampoule of americium-241 ...
They were found to contain Americium-241 — a highly toxic radioactive substance, according to the Shanghai Airport Entry-Exit Inspection and ...
The ever-shifting suite of technologies used at the site produced uniquely toxic brews that include radioactive caesium, strontium, americium ...


 

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