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伊方原発1号機の廃炉計画を認可 原子力規制委 via 朝日新聞

原子力規制委員会は28日、四国電力伊方原発1号機(愛媛県)の廃炉計画を認可した。伊方1号機は今年9月で、運転開始から40年を迎える。東京電力福島第一原発の事故後、原発の運転期間が原則40年に制限されて以降、廃炉が認可されるのは6基目。解体する原子炉や配管など廃炉で出る放射性廃棄物の量は約3千トンとみられるが、その処分先は決まっていない。

計画によると、廃炉完了は2056年度。今年度から26年度にかけて解体工事の準備にかかり、27年度から撤去作業を始めるという。解体費用は約407億円と見込む。放射性廃棄物を含む廃棄物の総量は、約4万2千トンにのぼるとみられる。

[…]

原発の廃炉は今年4月、日本原子力発電敦賀原発1号機(福井県)と九州電力玄海原発1号機(佐賀県)、関西電力美浜原発1、2号機(福井県)、中国電力島根原発1号機の4原発5基で認可されている。(石塚広志)

 

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北海道電力が株主総会 株主側から「原発方式排除」の議案提案も via 産経ニュース

北海道電力は28日、札幌市中央区のホテルで株主総会を開いた。定款に「原子力発電方式は排除する」との文言を加えることを求める議案など、株主側が計7本を提案。会社側はいずれも反対している。

会社側は「低炭素社会の実現に配慮しながら低廉な電気を安定的に供給するために、原子力は不可欠」と主張している。

会社側は2年連続の配当実施など3議案を提案している。

 

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全社で株主から脱原発提案 電力8社が一斉に総会via 産経ニュース

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Ex-Tepco execs to go on trial over Fukushima disaster via the Japan Times

Three former Tokyo Electric Power Co. executives are set to stand trial this week on the only criminal charges laid in connection to the 2011 Fukushima No. 1 nuclear power plant disaster, as thousands remain unable to return to their homes near the shuttered facility.

The hearing on Friday comes more than a year after ex-Tepco chairman Tsunehisa Katsumata, 77, former vice presidents Sakae Muto, 66, and Ichiro Takekuro, 71, were formally charged with professional negligence resulting in death and injury.

The tsunami-sparked reactor meltdowns at the plant set off the worst nuclear accident since 1986’s Chernobyl incident.

“We hope the trial will shed light on where the responsibility for this accident … lies,” Ruiko Muto, who heads a group that pushed for the trial, said. “The accident hasn’t been resolved. There is nuclear waste from the cleanup efforts everywhere in Fukushima and there are still many unresolved problems.”

The trial follows a prolonged battle over whether or not to indict the Tepco executives.

Prosecutors had twice refused to press charges, citing insufficient evidence and little chance of conviction.

But a judicial review panel composed of ordinary citizens ruled in 2015 — for the second time since the accident — that the trio should be put on trial.

That decision compelled prosecutors to press on with the criminal case.

[…]

Tepco declined to comment on the trial, saying the men “have already left the company.”

The three are expected to plead not guilty, and argue it was impossible to have predicted the size of the massive tsunami that slammed into the country’s northeast coast following a huge undersea earthquake.

However, a 2011 government panel report said Tepco simulated the impact of a tsunami on the plant in 2008 and concluded that a wave of up to 15.7 meters (52 feet) could hit the plant if a magnitude 8.3 quake occurred off the coast of Fukushima.

Executives at the company — which is facing huge cleanup and liability costs — allegedly ignored the internal study.

[…]

 

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Nuclear Weapons Site Alarms Shut Off, Scientists Inhale Uranium via Scientific American

Most scientists were not told of risks for months after 2014 incident; investigation shows more mishaps at Nevada and New Mexico nuclear sites

[….]

The government scientists didn’t know they were breathing in radioactive uranium at the time it was happening. In fact, most didn’t learn about their exposure for months, long after they returned home from the nuclear weapons research center where they had inhaled it.

The entire event was characterized by sloppiness, according to a quiet federal investigation, with multiple warnings issued and ignored in advance, and new episodes of contamination allowed to occur afterward. All of this transpired without public notice by the center.

Here’s how it happened: In April and May 2014, an elite group of 97 nuclear researchers from as far away as the U.K. gathered in a remote corner of Nye County, Nev., at the historic site where the U.S. had exploded hundreds of its nuclear weapons. With nuclear bomb testing ended, the scientists were using a device they called Godiva at the National Criticality Experiments Research Center to test nuclear pulses on a smaller and supposedly safe scale.

But as the technicians prepared for their experiments that spring—under significant pressure to clear a major backlog of work and to operate the machine at what a report called Godiva’s “upper energy range”—they committed several grievous errors, according to government reports.

The machine had been moved to Nevada nine years earlier from Los Alamos, N.M. But a shroud, descriptively called Top Hat, which should have covered the machine and prevented the escape of any loose radioactive particles, was not reinstalled when it was reassembled in 2012.

[…]

On June 16, 2014, a month after the experiments were completed, technicians doing routine tests made an alarming discovery—radioactive particles were in the anteroom. They then checked the room holding Godiva, and found radiation 20 times more intense there. The Nevada site’s managers, who work for a group of private, profit-making contractors—like most U.S. nuclear weapons personnel—ordered the rooms decontaminated. But they didn’t immediately check exposures among the scientists and researchers who had gathered for the tests, many of whom had already gone back to their own labs.

None had any clue about the mishap until two months after the experiments, on July 17, when one of them—a researcher from Lawrence Livermore National Laboratory nuclear weapons lab in California—got the results from his routine radiation monitoring. His urine tested positive for exposure to enriched uranium particles.

National Security Technologies,, LLC (NSTec), the lead contractor that runs the Nevada site, subsequently collected urine specimens from its own workers who’d been in the room with Godiva during the experiments. It discovered three of its technicians also had inhaled highly-enriched uranium.

News of trouble spread–but only among the scientists and their bosses, who were accustomed to a shroud of official secrecy covering their work. No public announcement was made. According to an initial U.S. Department of Energy (DoE) investigative report dated April 28, 2015, calls eventually went out to test the 97 people present for the Godiva experiments. But for reasons that remain unclear the testing went very slowly, and not until 2016 did the DoE state that 31 were discovered to have inhaled uranium.

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浜岡原発再稼働「反対」 静岡知事、初めて明言 via 山陰中央新聞

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川勝氏はこれまで、浜岡原発の再稼働に慎重姿勢を示し、3選を決めた知事選でも「再稼働できる状況にない」などと主張していたが、「反対」と明言したのは初めて。

川勝氏は、中部電が原子炉格納容器の劣化具合などを調べるIAEAのプロジェクトに参画している点を挙げ「浜岡原発は(再稼働よりも)安全のための文化、技術への取り組みに軸足を移した」との見解を示した。

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原子力規制委 東海第2防潮堤「液状化懸念」対策求める via 毎日新聞

 日本原子力発電が東海第2原発(茨城県)の津波対策で建設を計画している防潮堤について、原子力規制委員会は27日の臨時会で地盤に液状化の懸念があると指摘し、対策を求める考えを示した。原電は「液状化しない」と反論したが、同原発の再稼働には運転開始から40年となる来年11月までに運転延長の認可を得る必要があり、液状化の議論が長引けば、審査が間に合わない可能性が出てくる。

[…]

日本原子力発電が東海第2原発(茨城県)の津波対策で建設を計画している防潮堤について、原子力規制委員会は27日の臨時会で地盤に液状化の懸念があると指摘し、対策を求める考えを示した。原電は「液状化しない」と反論したが、同原発の再稼働には運転開始から40年となる来年11月までに運転延長の認可を得る必要があり、液状化の議論が長引けば、審査が間に合わない可能性が出てくる。

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「保養」に公的支援を〜福島の母親ら政府に訴え via Our Planet TV

放射能を気にせずに、屋外で思い切り、子どもを遊ばせたいー。
そんな保護者のニーズに応え、福島第一原発事故以降、福島県やその近隣県の子どもたちを受け入れ、自然体験活動を行ってきた「保養団体」のメンバーや利用者らが26日、「保養プログラム」に対して公的支援を行うよう、文部科学省などに申しいれた。

申し入れを行ったのは、福島原発事故以降、市民レベルで保養活動を展開してきた108団体。事故から7年目を迎えてもなお、年間にのべ9000人以上が保養に参加している一方で、受け入れている保養団体が財政的に疲弊し、支援の継続が困難になっていると主張。「原発事故子ども・被災者支援法」に基づき、「保養」を国の制度に位置付けることや、民間団体が実施している保養プログラムを公的支援するよう要望した。

保養支援団体「リフレッシュサポート」の疋田香澄さんは、住宅支援の打ち切りや避難解除により、福島県内に戻る家族が増加する中、今まで以上に希望者が増えていると説明。これらの家族が福島で安心して暮らすために、保養プログラムは大変重要な機会であると述べた。

子どもたちを屋外でのびのび遊ばせるために、子どもたちを、福島市から山形県米沢までバスで連れて行き、保育を行っている「NPO法人青空保育たけの子」の代表・辺見妙子さんは、事故から6年経っても、震災前と同じ線量にはもどっていないとした上で、子どもたちの外遊びを制限するなどした結果、子どもたちに様々な影響が出ていると指摘した。

(略)

また県南地域に住む母親も、最近出産した母親の中に、新たに「保養」の情報を求める人が増えているとして、保養に公的な支援を求めた。

全文は「保養」に公的支援を〜福島の母親ら政府に訴え 

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Connecticut Hospital Association Confronts Radiation Dosage via Hospitals and Health Networks

New data repository system is tracking and aggregating statewide radiation exposure in patients and will be evaluated this summer

Amid concern from U.S. health organizations over the last few years, the Connecticut Hospital Association is taking steps to implement a statewide data repository of how much radiation a patient is being exposed to during such radiological procedures as CT scans. The repository could lead toward benchmarking appropriate levels of radiation dosage nationwide.

The CHA claims its dose management repository is the first of its kind in the United States. Regions of Canada and Europe, where the government controls health care, have systems in place, according to Mary Reich Cooper, M.D., chief quality officer of the CHA and senior vice president of clinical services.

She says awareness of radiation dosage became prominent around four years ago, when organizations such as the American College of Radiology and the American Board of Internal Medicine and its Choosing Wisely initiative were presenting radiation dose guidelines to help patients navigate potential overuses of care. Risks of overexposure include a potential of cancer as well as injury to the epidermis, such as skin erythema. The ECRI Institute, which guides its hospital members on how to use medical devices safely, labeled radiation dose a “Top 10 Health Technology Hazard” in 2013 and 2014.

[…]

Jason Launders, director of operations in the Health Devices Group at the ECRI Institute, says tracking software is a step in the right direction, but there are issues to address. For one, there aren’t standard names for the protocols. If one hospital reports dosage as a  “head scan” and the other a “brain scan,” it reads differently in the databases even though it’s the same thing.

Also, it is hard to measure what are recommended levels of appropriate radiation dosage. A heavier patient, for example, may require more radiation to penetrate through their skeletal system or any fat surrounding their organs. “If I give less radiation and am unable to visualize the tumor, that’s much more of a consequence than my giving more radiation and, over time, increasing the risk of radiation-related cancer,” Cooper says. 

Launders calls the reporting “a data-mining research project of gigantic proportions,” so there’s an issue of manpower. And lastly, there’s variability between new and old radiology machines.

Mani Adib, senior project officer in the Health Devices Group at ECRI Institute, says newer machines produce images with lower doses of radiation but doctors have become accustomed to the high-quality images on older machines, asking to increase dosage.

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UPDATE 1-S.Korea to suspend construction of 2 nuclear reactors while decides fate via Reuters

* Will gather public opinion on the two reactors

* New president wants to address public concern over atomic safety

* Country’s oldest reactor was permanently closed last Monday (Adds detail, background)

SEOUL, June 27 South Korea’s government said on Tuesday it would suspend construction of two partially-completed nuclear reactors while it gathers public opinion on the facilities and decides whether they should be scrapped.

The government said in a statement that it would form a committee that would spend about three months deciding whether or not construction of the plants should continue.

[…]

The part-completed Shin Kori No.5 and Shin Kori No.6 are located near the city of Busan, some 300 km (186 miles) southeast of Seoul. They were scheduled to be completed by March 2021 and March 2022 respectively.

If construction was scrapped, potential costs including compensation would be about 2.6 trillion won ($2.3 billion), South Korea’s Office for Government Policy and Coordination said in the statement.

Read more at UPDATE 1-S.Korea to suspend construction of 2 nuclear reactors while decides fate

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5 Nuclear Meltdowns You Were Never Told About via Dark5

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