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Keyword: reactor

Brevity: Headers | « Text »
  • Bill Gates-Backed TerraPower And Toshiba Are Talking

    04/05/2014 1:38:48 PM PDT · by ckilmer · 6 replies
    greenenergyreporter ^ | March 23, 2010
    Bill Gates-Backed TerraPower And Toshiba Are Talking TerraPower, a company that develops reactors powered by depleted uranium, is in talks with Toshiba in view of developing a small nuclear reactor. TerraPower is a unit of Intellectual Ventures, a patent holding investment firm partially backed by Bill Gates and run out of Bellevue, Wash., by former Microsoft executive, Nathan Myhrvold. Japan’s Nihon Keizai Shimbun first reported the news. In this recent interview with Cnet News Gates discusses his investments in cleantech and in TerraPower. A Toshiba spokesman confirmed the discussions, reports the Wall Street Journal. He said the talks were at...
  • Fukushima ghost towns struggle to recover amid high radiation levels

    01/01/2014 10:36:30 AM PST · by Texas Fossil · 11 replies
    The Guardian ^ | 1 January 2014 11.21 EST | Simon Tisdall
    Post-tsunami reconstruction and radiation cleanup could take 10 years, but officials say something has been permanently lost Nearly three years after a major earthquake, tsunami and nuclear radiation leak devastated coastal and inland areas of Japan's Fukushima prefecture, 175 miles north-east of Tokyo, Namie has become a silent town of ghosts and absent lives. Namie's 21,000 residents remain evacuated because of continuing high radiation levels, the product of the March 2011 disaster at the Fukushima Daiichi nuclear power station, six miles to the south. Homes, shops and streets are deserted except for the occasional police patrol or checkpoint.
  • Anyone else hear? TEPCO Quietly Admits Reactor 3 Could Be Melting Down NOW [see post 80']

    12/30/2013 9:07:12 AM PST · by RaceBannon · 156 replies
    Susan posel news ^ | Dec 30, 2013 | Turner Radio Network
    Turner Radio Network (TRN) has issued a report regarding Fukushima Diachi Nuclear Plant that is expected to affect the entire Northern Hemisphere. According to the report: “Persons residing on the west coast of North America should IMMEDIATELY begin preparing for another possible onslaught of dangerous atmospheric radiation from the Fukushima nuclear disaster site in Japan.” TEPCO has confirmed that via camera surveillance, that steam has begun to pour from Reactor 3, although they have “not been identified abnormal plant conditions.” TEPCO are reporting that “radioactive steam has suddenly begun emanating from previously exploded nuclear reactor building #3 at the Fukuishima...
  • Startling Revelations from an Iranian Smuggling Case in Hamburg

    09/18/2013 1:43:22 AM PDT · by Cindy · 2 replies
    ALGEMEINER.com - Commentary-Opinion ^ | September 17, 2013 | by Matthias Kuentzel
    SNIPPET: "I rarely attend trials, but this one is special. On July 24, 2013, the main hearing in the case of German businessman Rudolf M. and Iranian-Germans Gholamali K., Kianzad K., and Hamid Kh. opened at Hamburg’s Higher Regional Court. The defendants are charged with exporting 92 German-produced specialized valves for use in Iran’s Arak plutonium reactor and arranging the shipment of 856 nuclear-usable valves from India to Iran in 2010 and 2011. The reasons why the UN Security Council has ordered Iran to halt the construction of the Arak reactor are compelling. If this nuclear plant comes online in...
  • America and Russia in secret Syria talks as Moscow warns of nuclear catastrophe

    09/05/2013 4:47:46 PM PDT · by afraidfortherepublic · 11 replies
    The Daily Mail Online ^ | 9-5-13 | David Martosko In New York, Jill Reilly and Becky Evans
    With U.S. diplomats secretly talking with their Russian counterparts behind the scenes at the G-20 summit in St. Petersburg in hopes of avoiding a stalemate over Syria, publicly Moscow warned that a military strike on Syria could have catastrophic effects if a missile hit a small reactor near Damascus that contains radioactive uranium. But a U.S. official attached to the United Nations delegation told MailOnline that while Obama's admission on Wednesday that U.S.-Russia relations have 'hit a wall,' the president's team is overreaching with an ambitious proposal that has no chance of success. The talks started last week and are...
  • This Thorium Reactor Has the Power of a Norse God

    07/04/2013 12:17:13 PM PDT · by Innovative · 57 replies
    Gizmodo ^ | July 3, 2013 | Andrew Tarantola
    This stuff could very well revolutionize nuclear power. Thorium-MOX can be formed into rods and used in current generation (Gen II) nuclear reactor with minimal retrofitting. Thor Energy is currently testing the new technology on the small scale. A prototype reactor will power a paper mill in the town of Halden, Norway for the next five years. If the fuel proves to be commercially viable during that test, we could see a sea change in nuclear power by the end of the decade.
  • US teen designs compact nuclear reactor

    03/04/2013 11:01:00 AM PST · by Red Badger · 35 replies
    Phys.Org ^ | 01 March 2013 | Staff
    Eighteen-year-old Taylor Wilson has designed a compact nuclear reactor that could one day burn waste from old atomic weapons to power anything from homes and factories to space colonies. The American teen, who gained fame four years ago after designing a fusion reactor he planned to build in the garage of his family's home, shared his latest endeavor at a TED Conference in southern California on Thursday. "It's about bringing something old, fission, into the 21st Century," Wilson said. "I think this has huge potential to change the world." He has designed a small reactor capable of generating 50-100 megawatts...
  • Bombing the Syrian Reactor: The Untold Story

    02/23/2013 8:09:08 PM PST · by neverdem · 60 replies
    Commentary ^ | February 2013 | Elliott Abrams
    As the civil war in Syria enters its third year, there is much discussion of the regimeÂ’s chemical weapons and whether SyriaÂ’s Bashar al-Assad will unleash them against Syrian rebels, or whether a power vacuum after AssadÂ’s fall might make those horrific tools available to the highest bidder. The conversation centers on SyriaÂ’s chemical weaponry, not on something vastly more serious: its nuclear weaponry. It well might have. This is the inside story of why it does not. Relations between the United States and Israel had grown rocky after IsraelÂ’s incursion into Lebanon in 2006, for Secretary of State Condoleezza...
  • China provides Rs 136 bn loan for Pak nuclear plants

    02/22/2013 5:57:14 PM PST · by Jyotishi · 1 replies
    The Indian Express ^ | Friday, February 22, 2013 | Press Trust of India
    Islamabad - China has provided a loan of Rs 136 billion for two nuclear power plants that Pakistan expects to commission by 2016, the state-run media reported today. The power plants of 340MW each are being built with Chinese assistance at the Chashma nuclear complex in Punjab province. The "construction of these power plants became possible after a long-standing agreement", official sources were quoted as saying by APP news agency. The total cost of the two plants is Rs 190 billion and they will be partially funded by a Chinese loan of Rs 136 billion, the sources said. The Pakistan...
  • US fines China firm for illegal export to Pak nuke plant

    01/06/2013 2:24:28 PM PST · by Jyotishi · 5 replies
    Rediff ^ | Friday, January 4, 2013 | Press Trust of India
    A Chinese company has agreed to pay a penalty of $3 million after pleading guilty to the charges of illegally exporting high-performance coating to Pakistan's Chashma nuclear power plant, US federal authorities said. Headquartered in Nanjing, the Chinese firm Huaxing agreed to the maximum criminal fine of  $2 million, $1 million of which will be stayed pending its successful completion of five years of corporate probation. Huaxing was building Chashma II Nuclear Power Plant in Pakistan as part of a nuclear cooperation pact between China and Pakistan. Chashma II is owned by the Pakistan Atomic Energy Commission, which is an...
  • No to Nukes: Nuclear power isn’t cost-effective, no matter how you do the math.

    06/27/2012 9:04:38 PM PDT · by neverdem · 100 replies
    Reason ^ | July 2012 | Veronique de Rugy
    When Barack Obama was just a baby, nuclear energy was touted as the technology that would finally provide pollution-free, limitless electricity for all. In its famous 1962 Port Huron Statement, the left-wing Students for a Democratic Society gushed about how “our monster cities…might now be humanized” thanks to nuclear power. Like so many predictions about the future, that one rather dramatically missed the mark. Surprising as it may seem, the United States still generates around 20 percent of its electricity from nuclear power plants. This despite the fact that no new facilities have been built since the notorious Three Mile...
  • Kodak's New York HQ housed secret underground nuclear reactor

    05/14/2012 5:14:36 PM PDT · by dynachrome · 20 replies
    Daily Mail ^ | 5-14-12 | unattributed
    A Kodak industrial facility in New York, was home to a secret nuclear reactor containing weapons-grade uranium. The research reactor was housed in an underground labyrinth in one of the buildings at the former Kodak Park site in Rochester and was the size of a fridge. Kodak used it to check chemicals and other materials for impurities, as well
  • Fukushima and the Future of Nuclear Power (No evidence that low doses of radiation are harmful)

    03/11/2012 2:16:32 PM PDT · by SeekAndFind · 17 replies
    Wall Street Journal ^ | 03/08/2012 | William Tucker
    In the early 1980s, a Taiwan steel company accidentally mixed some highly radioactive cobalt-60 into a batch of steel rebar. The radioactive rods were then used in the construction of 1,700 apartments. As a result, people living in these buildings were subject to radiation up to 30 times the normal amount received from the natural background. When dismayed officials discovered this enormous error 15 years later, they surveyed past and present apartment dwellers expecting to find an epidemic of cancer. Normal incidence would have predicted 160 cancers among the 10,000 residents. To their astonishment, the researchers discovered only five cases...
  • Iran to load own nuclear fuel rods in Tehran reactor

    02/15/2012 4:29:44 AM PST · by RS_Rider · 12 replies
    Yahoo News, Reuters ^ | 02-15-2012 | Parisa Hafezi
    TEHRAN (Reuters) - Iran will load domestically made nuclear fuel rods into its Tehran Research Reactor on Wednesday for the first time to keep it running, a senior official told a national news agency. Tehran had announced in January that it had successfully manufactured and tested fuel rods for use in nuclear power plants, a move to show that international sanctions are failing to stop it making advances in nuclear know-how and to strengthen its hand in any renewed negotiations with six world powers. "The first home-made nuclear fuel roads will be loaded in the Tehran Nuclear Research Reactor in...
  • OVERNIGHT ENERGY: Feds set to approve first new nuke reactors in decades (Georgia)

    02/08/2012 5:28:05 PM PST · by Libloather · 10 replies
    The Hill ^ | 2/08/12 | Andrew Restuccia, Ben Geman
    OVERNIGHT ENERGY: Feds set to approve first new nuke reactors in decadesBy Andrew Restuccia and Ben Geman - 02/08/12 05:42 PM ET State of play: The Nuclear Regulatory Commission is set to approve the construction of two nuclear reactors at Southern Co.’s Vogtle power plant in Georgia. The approval, expected Thursday, would mark the first time that the commission has authorized construction of a new nuclear reactor since 1978. Industry and anti-nuclear groups expect the commission to approve the license, a move that would allow construction of the reactors and conditionally authorize their operation. The commission is slated to vote...
  • Japan: Temperature remains high at damaged reactor(despite injection of more water)

    02/07/2012 5:36:50 AM PST · by TigerLikesRooster · 58 replies
    NHK ^ | 02/07/12
    Temperature remains high at damaged reactor An unknown rise in temperature at one of the reactors at the damaged Fukushima nuclear plant is troubling its operator. Tokyo Electric says the temperature hasn't gone down even after it increased the volume of cooling water on Tuesday. One of the thermometers at the bottom of reactor No. 2 at the Fukushima Daiichi plant gradually rose to about 70 degrees Celsius since January 27th. It had stayed around 45 degrees before. In an effort to lower the temperature, the operator increased the amount of water sprayed on the nuclear fuel by 3 tons...
  • Japan: Temperature Soars Mysteriously Inside Fukushima Nuclear Reactor

    02/06/2012 6:21:48 PM PST · by TigerLikesRooster · 23 replies
    Fox ^ | 02/06/12
    Temperature Soars Mysteriously Inside Fukushima Nuclear Reactor Updated: Monday, 06 Feb 2012, 9:22 AM EST Published : Monday, 06 Feb 2012, 9:22 AM EST By NewsCore TOKYO - The temperature of a reactor at Japan's stricken Fukushima Daiichi nuclear plant has soared and remained mysteriously high Monday, despite more water being pumped through it. The facility's No.2 reactor had reached 164 degrees Fahrenheit (73.3 degrees Celsius) by Monday morning, after sitting at 113 degrees Fahrenheit (45 degrees Celsius) on Jan. 27, broadcaster NHK reported. That was despite Tokyo Electric Power Company (TEPCO) officials pumping 9.6 tonnes (10.6 tons) of water...
  • S. Korea dismisses rumors of nuclear explosion in N. Korea

    01/07/2012 9:14:38 PM PST · by TigerLikesRooster · 6 replies
    Yonhap News ^ | 01/06/12
    2012/01/06 18:30 KST S. Korea dismisses rumors of nuclear explosion in N. Korea SEOUL, Jan. 6 (Yonhap) -- South Korea on Friday dismissed as groundless a rumor that a light-water reactor has exploded in North Korea's nuclear complex, sending leaked radiation to Pyongyang and as far as South Korea. The rumor cited an unidentified secret Japanese intelligence operative in the isolated communist country. The rumor quickly spread among securities firms in Yeouido, South Korea's equivalent to New York's Wall Street, through instant messenger services on Friday afternoon as ordinary citizens also tweeted messages on the allegation. South Korean officials quickly...
  • US Nuclear Expert Raises Concerns Over Safety of N. Korea's LWRs(potential reactor accident?)

    12/14/2011 4:43:44 AM PST · by TigerLikesRooster · 8 replies
    Arirang News ^ | 12/14/11
    US Nuclear Expert Raises Concerns Over Safety of N. Korea's LWRs The safety of North Korea's light water reactor under construction has been questioned by a renowned US nuclear expert, who first revealed the North's uranium enrichment facility to the world last year. In Seoul to talk about his visit to North Korea last year, Stanford University professor Siegfried Hecker, indicated how important it is for a country to choose the right materials and construction methodology when building such reactors. He added that lessons should be learned from past nuclear-related accidents, like the recent nuclear meltdown at Japan's Fukushima plant.
  • Japan: Tepco Starts To Eject Hydrogen From Fukushima Plant - Kyodo (heading off explosion)

    10/08/2011 6:18:32 AM PDT · by TigerLikesRooster · 5 replies
    Fox Business ^ | 10/08/11
    Tepco Starts To Eject Hydrogen From Fukushima Plant - Kyodo Published October 08, 2011 Tokyo Electric Power Co. (9501.T0), operator of the crisis-hit Fukushima Daiichi nuclear plant, said Saturday it has started to discharge hydrogen with high concentration levels from a pipe connected to a reactor containment vessel at the plant, as a measure to prevent an explosion. The utility said it has injected nitrogen into the pipe for the No. 1 reactor vessel to eject hydrogen found with high density of more than 60%. The hydrogen has been generated by radiation that dissolved water. Tepco said it will make...
  • Japan: Hydrogen accumulates in pipes at Fukushima's No. 1 reactor

    09/26/2011 8:01:33 AM PDT · by TigerLikesRooster · 9 replies
    Asahi Shimbun ^ | 09/24/11 | HIDENORI TSUBOYA
    Hydrogen accumulates in pipes at Fukushima's No. 1 reactor September 24, 2011 By HIDENORI TSUBOYA / Staff Writer Hydrogen has accumulated to a level higher than previously thought in pipes connected to the No. 1 reactor containment vessel at the Fukushima No. 1 nuclear power plant, the plant's operator said Sept. 23. But Tokyo Electric Power Co. officials said an explosion was unlikely because nonflammable nitrogen was being pumped in to prevent oxygen from entering the containment vessel and triggering a blast. TEPCO also said the discovery of the hydrogen buildup will not affect the road map toward achieving a...
  • [Japan]TEPCO: Nuclear fuel pool cooled to stable level

    07/02/2011 12:05:15 AM PDT · by TigerLikesRooster · 10 replies
    NHK ^ | 07/02/11
    TEPCO: Nuclear fuel pool cooled to stable level The operator of the crippled Fukushima Daiichi nuclear plant has reported progress in its work to stabilize the facility's spent fuel rods. Tokyo Electric Power Company says the cooling system that began operating at the No.3 reactor on Thursday has brought the temperature of the nuclear fuel storage pool of the reactor to just below 40 degrees Celsius from the previous level of 62 degrees. TEPCO says the temperature of the pool was 39.9 degrees as of 5 AM on Saturday. As cooling has progressed faster than initially expected, TEPCO says the...
  • AP IMPACT: NRC and industry rewrite nuke history

    06/28/2011 6:40:13 AM PDT · by RS_Rider · 5 replies
    Associated Press ^ | June 28, 2011 | JEFF DONN
    ROCKVILLE, Md. (AP) — When commercial nuclear power was getting its start in the 1960s and 1970s, industry and regulators stated unequivocally that reactors were designed only to operate for 40 years. Now they tell another story — insisting that the units were built with no inherent life span, and can run for up to a century, an Associated Press investigation shows. By rewriting history, plant owners are making it easier to extend the lives of dozens of reactors in a relicensing process that resembles nothing more than an elaborate rubber stamp. As part of a yearlong investigation of aging...
  • Japan: Boric acid being added to No.3 reactor fuel pool

    06/26/2011 10:20:22 AM PDT · by TigerLikesRooster · 11 replies
    NHK ^ | 06/26/11
    Boric acid being added to No.3 reactor fuel pool Tokyo Electric Power Company has begun adding boric acid to the spent fuel storage pool of the No.3 reactor at its Fukushima Daiichi nuclear plant to prevent fuel racks from being corroded by alkaline water. The company started the operation on Sunday morning. About 90 tons of water containing boric acid will be poured into the pool through Monday. Concrete debris from the March hydrogen explosion of the reactor building has been detected in the fuel pool. Last month, TEPCO found that the water in the pool had turned strongly alkaline,...
  • Japan: TEPCO to cover reactor with polyester sheets(here comes reactor burqa )

    06/14/2011 7:41:13 PM PDT · by TigerLikesRooster · 28 replies
    NHK ^ | 06/15/11
    TEPCO to cover reactor with polyester sheets The operator of the Fukushima Daiichi nuclear plant will begin to cover the No.1 reactor building with polyester sheets this month to prevent the dispersal of radioactive substances. The buildings of the No.1, 3, and 4 reactors were severely damaged by explosions and radioactive elements are still being released into the atmosphere. There are fears that heavy rain may hamper the workers' activities and that the rainwater may become contaminated with radioactive materials. To prevent these situations, Tokyo Electric Power Company, or TEPCO, plans to enclose the reactor buildings with polyester sheets. The...
  • Japan: In Nuclear Crisis, Crippling Mistrust

    06/13/2011 4:42:45 AM PDT · by TigerLikesRooster · 15 replies
    NYT ^ | 06/12/11 | NORIMITSU ONISHI and MARTIN FACKLER
    In Nuclear Crisis, Crippling Mistrust By NORIMITSU ONISHI and MARTIN FACKLER Published: June 12, 2011 TOKYO — On the evening of March 12, the Fukushima Daiichi nuclear plant’s oldest reactor had suffered a hydrogen explosion and risked a complete meltdown. Prime Minister Naoto Kan asked aides to weigh the risks of injecting seawater into the reactor to cool it down. /snip At the drama’s heart was an outsider prime minister who saw the need for quick action but whose well-founded mistrust of a system of alliances between powerful plant operators, compliant bureaucrats and sympathetic politicians deprived him of resources he...
  • 3 Japan nuclear reactors had full meltdown, agency says (full?)

    06/06/2011 9:51:52 PM PDT · by TigerLikesRooster · 21 replies
    CNN ^ | 06/06/11
    3 Japan nuclear reactors had full meltdown, agency says Japan's Fukushima Daiichi nuclear power plant experienced full meltdowns at three reactors in the wake of an earthquake and tsunami in March, the country's Nuclear Emergency Response Headquarters said Monday. The nuclear group's new evaluation, released Monday, goes further than previous statements in describing the extent of the damage caused by an earthquake and tsunami on March 11. The announcement will not change plans for how to stabilize the Fukushima Daiichi plant, the agency said. Reactors 1, 2 and 3 experienced a full meltdown, it said. The plant's owner, Tokyo Electric...
  • Japan: Fukushima's No. 1 reactor building radiation up to 4,000 millisieverts

    06/04/2011 12:09:46 AM PDT · by TigerLikesRooster · 16 replies
    Fukushima's No. 1 reactor building radiation up to 4,000 millisieverts TOKYO (Kyodo) -- The operator of the Fukushima Daiichi nuclear power plant said Saturday it has detected radiation of up to 4,000 millisieverts per hour at the building housing the troubled No. 1 reactor. The radiation reading, taken as Tokyo Electric Power Co. sent a robot into the No. 1 reactor building on Friday, is believed to be the largest detected in the air at the plant. TEPCO said it took the reading near the floor at the southeast corner of the building under which runs a pipe emitting steam,...
  • Japan: Wastewater rises, fears mount [Fukushima]

    06/02/2011 7:32:29 AM PDT · by TigerLikesRooster · 6 replies · 1+ views
    NHK ^ | 06/02/11
    Wastewater rises, fears mount The operator of the Fukushima Daiichi nuclear power plant is struggling to remove pools of highly radioactive wastewater as fears of an overflow get more intense. Tokyo Electric Power Company says wastewater levels rose around 6 centimeters inside the No.2 reactor turbine building, and in its utility tunnel, during the 24-hour period through Thursday morning. Increases were also seen inside the No.3 and 4 reactor turbine buildings. The water level in the utility tunnel is now just 28 centimeters from the surface outside the No.2 reactor, and 24 centimeters from the surface outside the No.3 reactor....
  • Japan: Stabilizing reactors by year's end may be impossible: Tepco (no brainer)

    05/31/2011 5:53:33 AM PDT · by TigerLikesRooster · 6 replies
    Japan Time ^ | 05/30/11
    Stabilizing reactors by year's end may be impossible: Tepco Kyodo Stabilizing the crisis at the Fukushima No. 1 power plant by the end of the year may be impossible, senior officials at Tokyo Electric Power Co. said Sunday, throwing a monkey wrench into plans to let evacuees return to their homes near the plant. The confirmation of core meltdowns hitting reactors 1 through 3, accompanied by breaches to the critical pressure vessels that hold the nuclear fuel, has led officials to believe that "there will be a major delay to work" to contain the situation, one official said. Tepco, the...
  • Japan: Radioactivity in No. 1 Reactor Basement Water 10,000 Times Normal

    05/31/2011 5:51:54 AM PDT · by TigerLikesRooster · 5 replies
    Jiji Press ^ | 05/30/11
    Radioactivity in No. 1 Reactor Basement Water 10,000 Times Normal Fukushima, May 30 (Jiji Press)--Tokyo Electric Power Co. <9501> said Monday that the amounts of radioactive materials in water at a reactor building of the Fukushima No. 1 nuclear power plant were about 10,000 times the normal levels for water inside a nuclear reactor. The water, recently found in the basement of the No. 1 reactor building of the nuclear power plant, contained 30,000 becquerels of iodine-131 per cubic centimeter, 2.5 million becquerels of cesium-134 and 2.9 million becquerels of cesium-137. On May 13, Tokyo Electric Power employees entered the...
  • Japan: 70,000 more should evacuate after Fukushima: Watchdog

    05/24/2011 9:25:10 AM PDT · by TigerLikesRooster · 24 replies
    Times of India ^ | 05/24/11
    70,000 more should evacuate after Fukushima: Watchdog AFP | May 24, 2011, 05.30pm IST PARIS: Seventy thousand people living beyond the 20-kilometre no-go zone around Fukushima should be evacuated because of radioactivity deposited by the crippled nuclear plant, a watchdog said. Updating its assessment of the March 11 disaster, France's Institute for Radiological Protection and Nuclear Safety (IRSN) highlighted an area northwest of the plant that lies beyond the 20-km (12 mile) zone whose inhabitants have already been evacuated. Radioactivity levels in this area range from several hundred becquerels per square metre to thousands or even several million bequerels per...
  • Japan:Radioactive debris hampers efforts to cool reactor(1000 millisievert outside reactor #3)

    05/22/2011 5:54:49 AM PDT · by TigerLikesRooster · 1 replies
    NHK ^ | 05/22/11
    Radioactive debris hampers efforts to cool reactor The operator of the Fukushima Daiichi nuclear power plant is facing the new challenge of removal of highly radioactive debris in order to proceed with efforts to stabilize the Number 3 reactor. Tokyo Electric Power Company on Friday found debris releasing 1,000 millisieverts per hour in an area south of the Number 3 reactor building. It is the highest level of radiation found in debris left outside. Materials emitting 900 millisieverts of radiation per hour have also been found in the plant's compound. These materials are believed to be part of the large...
  • Japan:Kan halted seawater injection/Operations stopped for 55 minutes over fears of 're-criticality'

    05/21/2011 6:26:22 PM PDT · by TigerLikesRooster · 5 replies
    Kan halted seawater injection / Operations stopped for 55 minutes over fears of 're-criticality' The Yomiuri Shimbun The injection of seawater into the No. 1 reactor at the Fukushima No. 1 nuclear power plant was stopped for nearly an hour soon after the Great East Japan Earthquake, at Prime Minister Naoto Kan's request, government sources have revealed. The prime minister feared that injecting seawater might cause re-criticality to occur inside the reactor, the sources said. Criticality refers to a self-sustaining chain reaction of nuclear fission in uranium atoms. Re-criticality is when a system achieves criticality despite mechanisms being in place...
  • Feds raise questions about Westinghouse's AP1000 reactor

    05/21/2011 5:28:24 PM PDT · by RS_Rider · 12 replies
    PITTSBURGH TRIBUNE-REVIEW ^ | Saturday, May 21, 2011 | Joe Napsha
    The Nuclear Regulatory Commission said on Friday that it found additional technical issues with Westinghouse Electric Corp.'s new AP1000 nuclear power reactor design, prompting critics to call for a suspension of the agency's license review process. The commission raised questions regarding the shield building situated over the reactor in the AP1000 design, as well as the peak accident pressures expected within the containment unit. The agency said it would consider what impact the technical issues will have on scheduled AP1000-related application reviews after its staff examines Westinghouse's response. As far back as October 2009, the commission had raised concerns about...
  • Japan: Gov't crisis center kept in dark over data on radiation dispersal(bureaucrat sat on it)

    05/20/2011 6:42:07 AM PDT · by TigerLikesRooster · 4 replies
    Gov't crisis center kept in dark over data on radiation dispersal TOKYO (Kyodo) -- The government crisis management center was not informed about data on the predicted dispersal of radioactive substances caused by the nuclear accident at the Fukushima Daiichi power plant, top government spokesman Yukio Edano said Friday. Chief Cabinet Secretary Edano told a news conference that the premier's office received a fax of the computer-simulated estimates about the dispersal of radioactive materials in the early hours of March 12, a day after the powerful earthquake and tsunami that triggered the nuclear crisis, but this remained in the hands...
  • Japan:Over 100,000 Tons of Polluted Water Seen at Fukushima N-Plant

    05/18/2011 9:55:41 AM PDT · by TigerLikesRooster · 11 replies
    Jiji Press ^ | 05/18/11
    Over 100,000 Tons of Polluted Water Seen at Fukushima N-Plant Tokyo, May 18 (Jiji Press)--The total amount of radiation-contaminated water at Tokyo Electric Power Co.'s <9501> crippled Fukushima No. 1 nuclear power plant in northeastern Japan is estimated to top 100,000 tons, the company said Wednesday. The amount includes some 7,500 tons of water that have already been removed from the No. 2 and No. 3 reactor buildings, company officials said. At present, the combined amount of radioactive water at the power plant's No. 1 to No. 6 reactor facilities, including the basements of the reactor buildings and turbine buildings,...
  • A layman's guide to the situation at the Fukushima No. 1 nuclear power plant

    05/18/2011 7:34:51 AM PDT · by TigerLikesRooster · 8 replies
    Asahi Shimbun ^ | 05/18/11 | RYOMA KOMIYAMA
    A layman's guide to the situation at the Fukushima No. 1 nuclear power plant BY RYOMA KOMIYAMA STAFF WRITER /snip Q: What happens if fuel rods melt? A: Melted fuel rods cannot be easily cooled by water because they are completely deformed. They become like a chunk of concrete. Cooling them requires the continued injection of water. In this case, intense heat from melted rods on the bottom made holes in the metal pressure vessel, causing the contaminated water to leak. Q: What are these holes like? A: There are several of them. Their total size is about the same...
  • Japan:N-reactor cooling failed before tsunami

    05/18/2011 7:26:07 AM PDT · by TigerLikesRooster · 3 replies
    N-reactor cooling failed before tsunami The Yomiuri Shimbun An emergency cooling system of the No. 1 reactor at the Fukushima No. 1 nuclear power plant malfunctioned after the March 11 earthquake and before the tsunami hit, data released by plant operator Tokyo Electric Power Co. have revealed. According to a large cache of data concerning plant operations from March 11 to 14 released Monday by TEPCO, the No. 1 reactor's isolation condenser, which operates on direct-current power, began to malfunction shortly after the Great East Japan Earthquake struck the Tohoku and Kanto regions. /snip According to the data, the No....
  • Japan: Radioactive substance detected in green tea leaves in Ibaraki towns

    05/17/2011 6:40:55 AM PDT · by TigerLikesRooster · 8 replies
    Radioactive substance detected in green tea leaves in Ibaraki towns MITO -- Higher levels of radioactive cesium than the national provisional limit were detected in green tea leaves harvested in Daigo and Sakai in northern Ibaraki Prefecture, the prefectural government announced May 16. The government said radioactive cesium of 894 becquerels per kilogram was detected in green tea leaves picked May 15 in Sakai and that of 570 becquerels per kilogram in Daigo in green tea leaves picked May 14, compared with the official interim limit of 500 becquerels per kilogram. The prefectural government ordered the two towns May 16...
  • TEPCO: Meltdown at No. 1 reactor started much earlier than initially reported(in 5.5 hrs)

    05/17/2011 6:37:51 AM PDT · by TigerLikesRooster · 3 replies
    Asahi Shimbun ^ | 05/16/11
    TEPCO: Meltdown at No. 1 reactor started much earlier than initially reported The meltdown at the No. 1 reactor of the Fukushima No. 1 nuclear power plant started only five-and-a-half hours after the March 11 tsunami struck, hours earlier than Tokyo Electric Power Co.'s earlier estimate. TEPCO originally said the meltdown began on March 12, and implemented measures to contain the crisis based on this assumption. It had said the water level in the core started to drop around 9:30 p.m. on March 11, and the fuel rods became fully exposed just before 9 a.m. on March 12. But new...
  • Japan Promises to Shut Down Fukushima Reactors By Year's End (promise?)

    05/16/2011 6:55:31 AM PDT · by TigerLikesRooster · 4 replies
    VOA News ^ | 05/16/11 | Steve Herman
    Japan Promises to Shut Down Fukushima Reactors By Year's End Steve Herman | Seoul May 16, 2011 Japan says it will shut down reactors at the Fukushima-1 power plant by the end of the year. The announcement comes despite revelations that a natural disaster in March damaged the nuclear facility worse than earlier believed. Serious troubles continue to beleaguer the operators of the Japanese nuclear power plant in Fukushima prefecture that was crippled by an earthquake and tsunami. But Prime Minister Naoto Kan told parliament Monday the damaged reactors will be shut down sometime this year. Kan says the timeline...
  • Japan: TEPCO to move radioactive water from No.3 reactor

    05/16/2011 6:47:06 AM PDT · by TigerLikesRooster · 4 replies
    NHK ^ | 05/16/11
    TEPCO to move radioactive water from No.3 reactor The operator of the troubled Fukushima Daiichi nuclear power plant says it will start transferring highly radioactive water from the No.3 reactor building to a temporary storage facility as early as Tuesday. Tokyo Electric Power Company, or TEPCO, estimates that there is about 22,000 tons of highly radioactive water in the reactor's turbine building and in a connecting tunnel. The utility says the water in the basement of the turbine building was about 1.4 meters high as of Monday morning, a rise of more than 20 centimeters over the past 2 weeks....
  • Japan: Meltdown may have occurred also at Nos. 2, 3 reactors (belated confession)

    05/16/2011 6:44:35 AM PDT · by TigerLikesRooster · 6 replies
    Kyodo News ^ | 05/16/11
    Meltdown may have occurred also at Nos. 2, 3 reactors TOKYO, May 16, Kyodo An adviser to Prime Minister Naoto Kan said Monday that the operator of the Fukushima Daiichi nuclear power plant had failed to inject water into the Nos. 2 and 3 reactors for more than six hours after the March 11 massive earthquake and ensuing tsunami. Goshi Hosono, tasked with handling the nuclear crisis, said at a press conference that Tokyo Electric Power Co. had not been able to cool down the reactors' cores due to loss of external power for a long time after the quake,...
  • Japan: Quake hurt reactors before tsunami: data

    05/15/2011 7:02:33 AM PDT · by TigerLikesRooster · 12 replies
    Japan Times ^ | 05/15/11
    Radiation seen as too high immediately after temblor Quake hurt reactors before tsunami: data Kyodo High radiation readings taken in the No. 1 reactor building the night of March 11 suggest it was the quake rather than the loss of cooling that critically damaged the Fukushima No. 1 power plant, a utility source said Saturday. The belated disclosure could trigger a review of quake-preparedness at nuclear facilities across the country. Many have been focusing on increasing defenses against tsunami, which knocked out the plant's poorly placed emergency power generators. On March 11, the nuclear plant shut down automatically just after...
  • Japan: Evacuation begins from widened no-go zone near Fukushima plant

    05/15/2011 6:59:14 AM PDT · by TigerLikesRooster · 18 replies
    IBN Live ^ | 05/15/11
    Evacuation begins from widened no-go zone near Fukushima plant PTI | 05:05 PM,May 15,2011 Fukushima, May 15 (Kyodo) Residents in Kawamata and Iitate began leaving their homes today after their living areas were included in an evacuation radius the government widened last month around the radiation-leaking Fukushima nuclear power plant. Kawamata Mayor Michio Furukawa met with some 50 residents in the first group of evacuees, including babies and toddlers, telling them, "I know you are worried but we will overcome difficulties together."
  • Japan: Original plan to cool Fukushima nuclear reactor to be scrapped

    05/15/2011 6:56:11 AM PDT · by TigerLikesRooster · 27 replies
    Original plan to cool Fukushima nuclear reactor to be scrapped TOKYO (Kyodo) -- An adviser to Prime Minister Naoto Kan indicated Sunday that a plan to flood and cool the No. 1 reactor's containment vessel at the crippled Fukushima Daiichi nuclear plant with water will be abandoned as holes have been created by melted nuclear fuel at the bottom of the pressure vessel. Goshi Hosono, tasked with handling the nuclear crisis, told TV programs, however, that the government will keep intact the "road map" devised by plant operator Tokyo Electric Power Co. to bring the Nos. 1 to 3 reactors...
  • Trouble delayed cold shutdown of Hamaoka nuke reactor

    05/15/2011 6:52:17 AM PDT · by TigerLikesRooster · 6 replies
    Kyodo News ^ | 05/15/11
    Trouble delayed cold shutdown of Hamaoka nuke reactor SHIZUOKA, Japan, May 15, Kyodo Chubu Electric Power Co. said Sunday that cooling system trouble delayed the 'cold shutdown' of the No. 5 reactor at its Hamaoka power plant in Shizuoka Prefecture for about two hours earlier in the day, while ruling out any external release of radioactive substances.
  • Meltdown occurred at Fukushima No. 1 reactor 16 hrs after March 11 quake

    05/15/2011 6:47:13 AM PDT · by TigerLikesRooster · 23 replies
    Kydodo News ^ | 05/15/11
    Meltdown occurred at Fukushima No. 1 reactor 16 hrs after March 11 quake TOKYO, May 15, Kyodo A nuclear fuel meltdown at the No. 1 reactor of the crisis-hit Fukushima Daiichi power plant is believed to have occurred around 16 hours after the March 11 quake and tsunami crippled the complex in northeastern Japan, Tokyo Electric Power Co. said Sunday.
  • Trident: plans to buy state-of-the-art reactors

    05/14/2011 9:55:40 PM PDT · by Rabin · 4 replies
    Guardian.co.uk, ^ | Saturday 14 May 2011 20.28 BST | Daniel Boffey and Toby Helm
    America provided Britain with one nuclear reactor for HMS Dreadnought in the 1960s.. Derived Submarine - New PWR3 (Pressurized Water Reactor 3), propulsion system "based on a US design but using UK reactor technology".. A new form of reactor, using a passive cooling system, was developed for Ohio & Virginia class Trident submarines.