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Nuggets Archives - Science Stuff No Place To Go Lost in Space Just Plain Silly Stuff You Didn't Know |
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Launched
by Lab Impex Systems, the SmartCAM is the next generation Continuous Air
Monitor (CAM) that will give users unparalleled performance in terms of
detectable limit, sensitivity and speed to alarm. The SmartCAM utilises
state-of-the-art Spectral Measurement Analysis in Real Time (SMART)
technology. This provides real advances in alpha particulate detection
techniques. In
operation the SmartCAM continually monitors alpha and beta particulates
deposited on a static card mounted filter (optional moving filter will also be
available) with a high efficiency solid - state detector. The
SmartCAM utilises proven features of LIS's previous generation CAM, the
CMS-2000, such as the highly efficient head design. Where the SmartCAM
sets itself apart from other systems is in its ability to accurately determine
background (Radon and Gamma) ensuring the limitation of costly false alarms.
More information can be found at www.lab-impex-systems.com
Stewart
Brand, who created the Whole Earth Catalogue, which covered subjects including
alternative energy, recently said: "Global warming is affecting the
fisheries in northern California and creating drought to the south. Like a
number of other environmentalists, I have had to change my tune," Indeed,
nuclear is an energy alternative that produces fewer greenhouse gases than
coal, generates cheap round-the-clock electricity and creates roughly 1 million
times the energy released by the burning of oil. Despite
numerous obstacles, a small group of business representatives are fighting to
launch a renaissance of nuclear energy in California and recent comments by
Governor Schwarzenegger suggest that he is in agreement with these plans.
The
cleanup project long ago veered from the 30-year timeline laid out in 1989 when
the federal government committed itself to remedying the toxic legacy of Cold
War nuclear production. President Bush
has proposed the lowest level of nuclear cleanup funding since 1997. His budget
would put the biggest cleanup challenge on pace for completion somewhere around
2150. Some of the double-wall tanks due for cleaning are past their design life; none of them is built to last another 150 years. They will eventually fail, and when they do, the leaking waste will join the plume of contaminated groundwater headed toward the Columbia River. Nice one, George… Images: Jeff T Green (New York Times) / Corbis (Britannica)
Mr Sarkozy, who arrives today, is to offer French expertise
to help Britain build replacement nuclear reactors for its ageing plants,
responsible for 20 % of the UK’s electricity production. Whilst this joint effort will be hailed as a drive to reduce greenhouse gas emissions by reducing Britain's reliance on fossil fuels, anti-nuclear campaigners are expected to react with dismay to the notion that Britain may follow the lead of France, which generates 80 % cent of its electricity from nuclear energy. Well, you know where to get your Geiger counters, don't you? Image: daily telegraph / small image from file
Defence establishment officials reported on Sunday that
Israel has recently purchased a new supply of Logol pills used
against nuclear radiation. This
debate has arisen as Israel was planning to bring an electrical particle
accelerator on line by March 10th which is supposed to take over the functions
currently being done by the Soreq reactor.
Just south of the BC cribs and trenches
50 million gallons of liquid waste contaminated with radioactive salts were
discharged during the Cold War. Animals attracted to the salts spread the waste
across miles of the Hanford desert. Matt
McCormick, Department of Energy assistant manager for central Hanford cleanup,
said "This area has a large spread of contamination on the surface with
the ability to move around with our winds," An
engineering analysis concluded that the surface soil in contaminated spots
should be dug up and hauled to a lined landfill for low-level radioactive waste
a few miles to the west. Work to dig up an estimated 237,000 cubic yards of
dirt could begin later this year.
The
$400 million OPAL reactor was shut down in July, just three months after being
opened by the then prime minister, John Howard, when uranium fuel plates
started coming loose. Without the
reactor, Australia has had to import radioactive ingredients, needed to make
the 500,000 doses of nuclear medicine used every year, from South Africa and
Canada. The fault, requiring the redesign of fuel plates used to power the reactor, has already forced a rationing of radiopharmaceuticals, with doctors and Lucas Heights specialists having to choose who should miss out when imports are held up. The Australian Nuclear Science and Technology Organisation originally expected the Argentine-designed reactor would be out of service for only eight weeks while repairs were made.
Officials
of MDS Nordion told a recent hearing that they were blunt when they met with
officials from the Department of Natural Resources on Nov. 22. "We were
very clear. This was a crisis situation. We had a global supply issue that was
going to impact nuclear medicine and physicians around the world," said
Grant Malkoske, vice-president of Strategic Technologies at MDS. The
company reprocesses isotopes produced by Atomic Energy of Canada Ltd. in Chalk
River, Ont., and sells them to pharmaceutical companies around the world.
Local
residents are at risk because most have failed to pick up free KI pills that
could be taken in the event of an accident at the plant. The KI (potassium
iodide) pills originally distributed in 2002 have expired. New
pills were made available in April; but of the 162,951 people living within 10
miles of the power plant, only 4,150 pills were picked up at six free clinics
offered by Ocean County last year and approximately 250,000 KI pills are
stockpiled, unclaimed by the public. If you thought that was bad, more than 35,000 KI pills are stockpiled at local schools in case there's a nuclear accident, but, as yet, have not been sent home with the children.
Rice University's Jim Tour and his colleagues at two
Houston health institutions have found a drug that, when given to mice before
radiation exposure, is 5,000 times more effective than the best-available
therapy for radiation injuries. Officials at the US Department of Defence, seeking
remedies for the radiation sickness that would follow a nuclear strike, were so
taken by the research that they recently gave Tour a $540,000 (around £271,000)
grant and asked him to compress the next phase of testing into an almost
unheard-of nine months. "They originally asked for something in six
months, but I told them that was impossible," said Tour, a chemist who
directs Rice's Carbon Nanotechnology Laboratory.
The
man, who was not identified by authorities and who could not be reached, was
experimenting with Americium-241, a man-made radioactive element common in
smoke detectors, and natural radioactive ore that he had bought legally on
eBay. Officials discovered the homemade atomic lab in December, when they found the man's boasts on an amateur science blog. On it, he said that he had produced high amounts of radiation in his house while making Plutonium-239, a component in nuclear weapons. Tests on the home did not show abnormal levels of radiation, and his neighbours were in no danger.
Medical
centres in the US are rushing to turn nuclear particle accelerators, formerly
used only for exotic physics research, into the latest weapons against cancer. "I'm
fascinated and horrified by the way it's developing," said Anthony L.
Zietman, a radiation oncologist at Harvard and Massachusetts General Hospital,
which operates a proton centre "This is the dark side of American
medicine." It costs around $50,000 to treat prostrate cancer with protons,
which is around twice the price of X-ray treatment. Once hospitals have made such a huge investment, experts like Dr. Zietman say, doctors will be under pressure to guide patients toward proton therapy when a less costly alternative might suffice.
Engineers at the U.S. Department of Energy's Argonne National Laboratory, using an emerging sensing technology, have developed a suite of sensors for national security applications that can quickly and effectively detect chemical, biological, nuclear and explosive materials. This technology can also be used to detect if a country is using its nuclear reactors to produce material for nuclear weapons.
With
apologies for the picture on the index page – well, we couldn’t resist – and staying in the UK, here
is a nice little story from the pages of World Nuclear News. A team of underwater
robots could scour the offshore next to the Dounreay nuclear site to
remove radioactive particles from the seabed and reduce the number being washed
onto the beach if proposals by the UK Atomic Energy Authority are approved. Radioactive
particles escaped into the environment, mainly during the period of reprocessing
during the early years of the Dounreay site. The systems in place to minimise
particulate release, including a diffuser, were not sufficiently effective
to prevent the release of particles. It
is proposed that over the next seven years remotely operated vehicles will
scour around 600,000 square metres of seabed.
Found on a recent trawl through the BBC’s
web pages. A Canadian nuclear reactor producing two-thirds of the world's medical isotopes resumed
operations recently after being shut down for a month. The
country's Atomic Energy Agency says that new supplies will be ready within days
to meet a worldwide shortage. The
Chalk River nuclear plant in the province of Ontario, in Eastern Canada,
produces isotopes used all over the world for medical imaging and diagnostic
scans for fractures, cancer and heart conditions. The 50-year old reactor was originally shut down for a week of routine maintenance but the country's nuclear regulator refused to allow it to resume production until a number of safety issues were resolved.
Back in 2003, the Japanese corporation Toshiba wanted to thrust the Alaskan community of Galena into the international limelight by donating a new, unconventional electricity-generating plant that would light and heat the Yukon River village, pollution-free, for 30 years. The catch? It was a nuclear reactor! The question? Was it ever built?
The White Sands public-affairs staff had been telling it the same way until Los Alamos National Lab Scientists Robert Hermes and William Strickfaden published the results of their recent investigation.
Strickfaden said he ran the appropriate numbers through the appropriate formulas and could not get the atomic fireball to form glass in the thickness found on site. He said the fireball did not hover over the site long enough to account for glass that thick. After further research, they suggested that the desert sand was scooped up into the fireball instead of being baked on the ground underneath it. Thorium Oxide could be the answer to many concerns about nuclear power. Reactors that use thorium, rather than uranium, produce radioactive waste that needs to be stored for only 500 years. They can also incinerate the much longer-lived radioactive products from conventional nuclear plants, making a Chernobyl-type meltdown virtually impossible: Okay…
Researchers at MIT have developed technology they say will boost the power output of nuclear power plants by 50 per cent, and make them safer to run. Well, that’s okay then…
Making an atomic bomb isn’t for dummies - or for sissies. "It's not done in your basement or bathtub," said Robert Norris, a nuclear weapons expert at the Natural Resources Defense Council, an environmental group in Washington. Okay…
Back to ’97, this time to Starkville, Miss.--A "drum-thunker" and a high-temperature electric torch were helping a Mississippi State laboratory develop ways for America and the world to reduce and safely store nuclear wastes..
Plant
officials said the shutdown occurred during routine testing of steam valves.
Plant technicians are trying to determine the cause of the automatic shutdown. Officials
said the plant remains in a safe and stable condition and will be restarted after
engineers complete a thorough evaluation of the shutdown. Prior to the shutdown, the plant had been operating at a 62% power level to allow repairs on one of the plants two cooling towers.
Hands up if you knew this: One kilogram (2.2 pounds) of natural uranium can produce more than 4,000 kilowatt hours of electricity - equivalent to burning 38 tons of coal or 150 barrels of oil
Impress your friends at dinner parties with this little gem: In 10 minutes, a hurricane releases more energy than all the world's nuclear weapons combined.
Lab coats on for a trip to the US: Back in ’97, a Dr. Delbert Day from the University of Missouri-Rolla, received a patent to research if glass may be the answer to safely dispose of nuclear waste by encapsulating plutonium in a special type of glass.
Here’s a statistic to make you think: Uranium 238, the most prevalent isotope in uranium concentrates, has a half-life of about 4.5 billion years.
With thanks to World Nuclear News: A site selection
process has been agreed for another floating nuclear power plant in Russia. At a recent meeting between the Republic of Sakha and Russia's Federal
Atomic Energy Agency (Rosatom) the Yakutia region was proposed.
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Here’s something to make you
think: every plant, animal and human that has ever lived on Earth has been bathed in radiation for every second of its life.

A thermal seawater desalination plant will be coupled to the Karachi nuclear power plant as a "first step" towards the employment of large scale production of potable water which has "socio-economic significance" for Pakistan.
The country's Atomic Energy Commission (PAEC) has teamed up with the International Atomic Energy Agency (IAEA) to undertake a Coordinated Research Project The result of the work will be the Nuclear Desalination Demonstration Plant (NDDP), which will use extraction steam from one of the Karachi nuclear plant's (Kanupp's) feed heaters to desalinate seawater.
Here’s a gem from the department of the
blindingly obvious: Plutonium is radiologically
hazardous, particularly if inhaled, so must be
handled with appropriate precautions.
The government must act now to dispose of Britain's nuclear waste, the Royal Society has said,
because the process itself will take decades. Their
solution, based on current scientific knowledge: bury the stuff in deep
concrete bunkers!
Brazil nuts are often said to be one of the most radioactive foodstuffs in the
world. The Brazil nut tree tends to accumulate high amounts of calcium. In the
process, the nut also accumulates high levels of other elements such as barium
and radium.
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