nuclear-news

latest news on the uranium/nuclear industry

Iowa wise to stop dead a plan for Small Modular Nuclear reactors

 ”The still substantial economic, technical and regulatory uncertainties surrounding Small Modular Reactors make their future role as a competitive, safe, clean electricity source only speculative, and given the track record of nuclear power there are reasons for pessimism.”

Experts: Nuclear Power Industry Woes Spreading Across Nation From Florida To Iowa Market Watch  WASHINGTON, May 23, 2012 /PRNewswire via COMTEX/ -”…….Steven Falck, senior policy advocate, Environmental Law and Policy Center, Iowa, said: “Common sense prevailed in Iowa to stop the advance financing of a small modular reactor. Read more »

May 24, 2012 Posted by | politics, technology | Leave a Comment

New devices to detect ionising radiation

Firms say new gear visually detects radiation hot spots, Japan Times, 18 May 12A number of companies have started marketing equipment and devices that enable inspectors to visually detect radiation hot spots.

The devices are expected to be a great help to municipalities and construction companies engaged in decontamination work in areas affected by the nuclear crisis at Tokyo Electric Power Co.’s Fukushima No. 1 power plant.

Hitachi Consumer Electronics Co. has developed a camera that can detect gamma rays emitted by radioactive substances 10 or more meters away. The box-shaped device, which weighs 16.8 kg and measures 34 cm in all dimensions, is highly portable, the company says.
It detects three kinds of radioactive material — cesium-134, cesium-137 and iodine-131…..
http://www.japantimes.co.jp/text/nn20120518b1.html

May 18, 2012 Posted by | Japan, Reference, technology | Leave a Comment

Offline nuclear reactors still dangerous, need constant cooling

News Navigator: What danger is still posed by offline nuclear reactors? Answers by Taku Nishikawa, Science & Environment News Department The Mainichi, 8 May 12, As of May 5, all nuclear reactors in Japan were offline. The Mainichi answers common questions readers may have about the safety and dangers of offline nuclear plants.

Question: With the reactors offline, has the danger of nuclear accidents disappeared?

Answer: The danger is likely less than while the reactors are running, but it still exists. Nuclear plants make power by turning turbines with the heat from the chained fission of Uranium-235 in nuclear fuel.
This chained fission is stopped in an offline reactor, but fuel rods continue to release “decay heat” as various unstable nuclei created during the reactors’ operation until now naturally break down. This decay heat has to continually be removed.

Q: What will happen if it is not removed? Read more »

May 10, 2012 Posted by | Japan, Reference, safety and incidents, technology | Leave a Comment

Small Modular Nuclear Reactors (SMR’s) – last forlorn hope of the nuclear industry

There just isn’t any proof that small reactors are going to be any more economic than larger ones….  it’s all about hype and hope

Small nuclear reactors generate hype, questions about cost  STL Today 29 April 12, “…..Ameren Missouri and Westinghouse Electric Co. announced plans to pursue a $452 million federal subsidy to advance development of small modular reactors that could be built alongside the utility’s much larger Callaway nuclear plant near Fulton, Mo.
While some utilities are still pursuing full-scale plants, there is a parallel push for smaller reactors that could be easier for utilities to finance and minimize sticker shock for regulators and consumers.
But despite a lower total cost, there’s no evidence yet that tiny fission factories would be able to produce electricity at a competitive cost in an era of abundant, cheap natural gas. Read more »

April 30, 2012 Posted by | business and costs, Reference, technology, USA | Leave a Comment

Fukishima’s radioactive wastes and the failure of nuclear reprocessing

The main reason why there is so much spent fuel at the Da-Ichi site is that the plan to send it off for nuclear recycling has collapsed.

This scheme is based on long discredited assumptions of …. a new generation of “fast” reactors

 nearly all of the spent fuel at the Da-Ichi containing some of the largest concentrations of radioactivity on the planet will remain indefinitely in vulnerable pools.

The Fukushima Nuclear Disaster Is Far From Over   HUFFINGTON POST, Robert Alvarez, Senior Scholar, Institute for Policy Studies, 22 April 12,“……Last week, Tokyo Electric Power Company (TEPCO) revealed plans to remove 2,274 spent fuel assemblies from the damaged reactors that will probably take at least a decade to accomplish. The first priority will be removal of the contents in Pool No. 4. This pool is structurally damaged and contains about 10 times more cesium-137 than released at Chernobyl. Read more »

April 23, 2012 Posted by | Japan, reprocessing, wastes | Leave a Comment

Smart grids – we’d be dumb not to use them

Clever energy: why smart grids matter. The Green Piece.  17 April 2012.  Smart grids-they’ve been in the news a lot lately and their importance is ever growing. The UK, like countries around the world, is seeking to increase the share that renewable sources play in its energy mix, while also striving for cleaner forms of transport such as electric
vehicles.

As a result, smart grids are set to play an important role in how we manage these changes to our energy generation and use. With increasing reliance on intermittent sources of power such as wind and solar, and increased demand on electricity supplies through the use of battery-powered cars, it is going to become ever more important to properly manage our energy use.
According to a new report from IDC Energy smart grid spending will increase 17.4 per cent globally between 2010-2015; with overall spending set to reach close to $46.4billion in 2015. What is a smart grid? Read more »

April 18, 2012 Posted by | 2 WORLD, ENERGY, technology | Leave a Comment

Rapid increase in brachytherapy for breast cancer, but is this wise?

“The most plausible explanation for our data is that women treated with brachytherapy were at increased risk of having a recurrence of cancer in their breast”

 A large federally funded study is trying to clarify the risks and benefits of brachytherapy for breast cancer. But the results won’t be out for years. 

includes audio.  Wider Use Of Breast Cancer Radiation Technique Raises Concern   http://www.npr.org/blogs health/2012/04/09/150088892/wider-use-of-breast-cancer-radiation-technique-raises-concern?ps=sh_stcathdl “…..there’s an intense debate under way about whether the approach is being used too widely before there’s clear evidence it’s as effective as the traditional approach. Read more »

April 16, 2012 Posted by | health, Reference, Resources -audiovicual, technology, USA | Leave a Comment

Nuclear fusion – an expensive pipedream

“Fusion will never be a practical source because it requires vast resources and technical capital”

The Tantalizing Promise And Peril Of Nuclear Fusion, Forbes, 15 April 12 “…..To be clear, fusion is different from fission, which is how today’s nuclear reactor’s produce energy. Fission splits atoms apart whereas fusion combines them — a process that thus far consumes more energy than it generates. Read more »

April 16, 2012 Posted by | 2 WORLD, Reference, technology | Leave a Comment

The world’s oldest nuclear reactors

Nuclear Halt in South Korea Seen Boosting Coal: Energy Markets, Bloomberg NewsBy Sangim Han and Yuriy Humber on April 13, 2012“….World’s Oldest The U.K, India, Japan, Russia, Switzerland and the U.S. have the world’s oldest nuclear plants, with 31 operating reactors aged 40 years or more, according to the London-based World Nuclear Association. No reactor has yet operated 50 years.

The U.S., which has the most nuclear reactors, originally licensed its units to run 40 years. Today, 71 of the 104 U.S. reactors have 60-year permits and 15 more applications are under review, according to the country’s Nuclear Regulatory Commission website.
http://www.businessweek.com/news/2012-04-13/nuclear-halt-in-south-korea-seen-boosting-coal-energy-markets

April 14, 2012 Posted by | 2 WORLD, Reference, technology | Leave a Comment

The danger of nuclear powered drones, and plutonium for spacecraft

The Deadly Folly of Nuclear Power Overhead HUFFINGTON POST, Karl Grossman: 04/12/2012  The crash last week of a U.S. drone on the Seychelles Islands– the second crash of a U.S. drone on Seychelles in four months — underlines the deadly folly of a plan of U.S. national laboratory scientists and the Northrop Grumman Corp. for nuclear-powered drones. Read more »

April 13, 2012 Posted by | - plutonium, Reference, safety and incidents, technology, USA, weapons and war | Leave a Comment

How the Stuxnet computer worm was introduced into Iran’s nuclear plant

Stuxnet delivered to Iranian nuclear plant on thumb drive, CNET News, 12 April 12,  Citing U.S. intelligence sources, ISSSource says an infected memory stick was used to hit the facility with the worm that severely damaged Iran’s nuclear program.

by Daniel Terdiman  April 12, 2012 An Iranian double agent working for Israel used a standard thumb drive carrying a deadly payload to infect Iran’s Natanz nuclear facility with the highly destructive Stuxnet computer worm, according to a story by ISSSource.  Stuxnet quickly propagated throughout Natanz    – knocking that facility offline and at least temporarily crippling Iran’s nuclear program — once a user did nothing more than click on a Windows icon. The worm was discovered nearly two years ago.
ISSSource’s report yesterday was based on sources inside the U.S. intelligence community.
These sources, who requested anonymity because of their close proximity to investigations, said a saboteur at the Natanz nuclear facility, probably a member of an Iranian dissident group, used a memory stick to infect the machines there. They said using a person on the ground would greatly increase the probability of computer infection, as opposed to passively waiting for the software to spread through the computer facility. “Iranian double agents” would have helped to target the most vulnerable spots in the system,” one source said. In October 2010, Iran’s intelligence minister, Heydar Moslehi said an unspecified number of “nuclear spies” were arrested in connection with Stuxnet.33 virus.

As CNET first reported in August 2010, Stuxnet, as a worm intended to hit critical infrastructure companies, wasn’t meant to remove data from Natanz. Rather, it left a back door that was meant to be accessed remotely to allow outsiders to stealthily control the plant…… http://news.cnet.com/8301-13772_3-57413329-52/stuxnet-delivered-to-iranian-nuclear-plant-on-thumb-drive/

April 13, 2012 Posted by | Iran, technology | Leave a Comment

New radiation monitoring dosimeter technology

The way in which radiation workers are monitored is set to change with the introduction of a new and very different type of dosimeter that has just been approved for legal use in New Zealand. 

Instead of waiting months for information about a possible exposure, radiation workers can now plug their dosimeter directly into a USB port of an Internet-connected Windows or Maccomputer and get an instant readout of any dose received.

Exposure information now available for radiation workers http://www.voxy.co.nz/business/exposure-information-now-available-radiation-workers/5/120503, 13 April, 2012We tend to think of New Zealand as nuclear-free but the reality is quite different. Radioactive material produced in nuclear reactors in other parts of the world is imported into the country on a near daily basis and thousands of x-ray generations are at work up and down the country. X-rays, gamma rays and radiopharmaceuticals are used extensively in human and animal health and radioactive sources are deployed in a plethora of industrial and research applications.

Human senses cannot detect the presence of ionising radiation and over time the cumulative effects of undetected radiation exposure become a threat to health. This is of particular significance for the thousands of workers whose occupation brings them into close and frequent contact with sources of ionising radiation. Read more »

April 13, 2012 Posted by | New Zealand, technology | Leave a Comment

The danger of nuclear powered drones to foreign countries, and to USA citizens

drones have become a nightmare for local residents. Civilian deaths inflicted by drone strikes have repeatedly strained relations between America and Pakistan….. ten times as many civilians as suspected terrorists died in U.S. drone attacks. 

 the document gives the “green light” for drone-based domestic spying.

Pentagon considers nuclear-powered drones. Space Daily Moscow  Apr 09, 2012 American scientists are working on new-generation nuclear-powered unmanned aircraft capable of staying in the air for up to several months. While being able to tackle a wider range of more complicated tasks compared to their existing analogues, the new drones will not require a costly air base network for refueling and technical maintenance.

What’s more, on February 14 President Barack Obama signed the Federal Aviation Administration Reauthorization Act that allows the use drones in U.S. airspace by both state-owned and private companies….. Read more »

April 11, 2012 Posted by | safety and incidents, technology, USA | Leave a Comment

Small Modular Reactors – the latest desperate effort to revive the nuclear idustry

Small Modular Reactors, [SMRs] the latest “rabbit out the nuclear hat,” are generally based on scaled down BWR or PWR technology and illustrate the nuclear industry’s schizophrenic attitude to reactor size…. it was clear that the AP600 [small nuclear reactor] was hopelessly uneconomic…  SMRs may turn out to be the latest in a long line of nuclear designs that looked good on paper, but could not make the transition to commercial technology

Prospects for Nuclear Power in 2012, The Energy Report 2 April 12, ”…….Technological Cul-de-Sac If plant life extensions can be achieved in France and the U.S. and Gen III+ does prove a blind alley, it raises the question of what options are open to the nuclear sector. Ten years ago, the industry answer would have been Generation IV designs. Unlike Gen III+, which evolved from existing Pressurized Water Reactors (PWRs) and Boiling Water Reactors (BWRs), these would be based on radical new technologies. Six technologies were selected by the major nuclear countries as the most promising.

However, 10 years on, they seem no closer to commercial deployment. Read more »

April 6, 2012 Posted by | Reference, technology, USA | Leave a Comment

Russia pouring money into plan for nuclear powered space travel

Russia to Build Nuclear Space Engine by 2017, Space Travel, Moscow (RIA Novosti) Apr 02, 2012 A Russian Megawatt-class nuclear propulsion system for long-range manned spacecraft must be ready by 2017, Skolkovo Foundation’s Nuclear Cluster head Denis Kovalevich said on Wednesday. Read more »

April 4, 2012 Posted by | Russia, technology | Leave a Comment

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