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Monju Sodium leak fire wikileaks https://wikileaks.org/wiki/The_Monju_nuclear_reactor_leak

January 19, 1996: “The official in charge of investigating the cover-up of Japan’s worst nuclear power accident committed suicide on January 13, by leaping from the roof of a Tokyo hotel, police said.http://www.wiseinternational.org/node/1446
Some believe he was pushed: http://juzoitami1997.wordpress.com/2013/09/20/wicked-japans-nuclear-power-mafia-killed-a-monjus-employee/

The Japanese government and other pro-nuclear people seem both lacking in common sense and related folk wisdom. They don’t understand that nuclear is a failed technology and that after so much failure it’s well past time to move along to something else, such as finding new materials to safely store this failed technology, and clean up the land, air and water. It’s time to stop barking up the nuclear tree. While the nuclear industry, especially in Japan, can’t really quit while the going is good, post-Fukushima, they can quit before they make things even worse! As popularized by Kenny Rogers in “The Gambler”: you gotta “Know when to walk away”, and “know when to run.” http://en.wikipedia.org/wiki/The_Gambler_(song) And, now is the time to run quickly away from nuclear. RUN! Hard to imagine but the so-called “plutonium economy” is even more dangerous than regular reactors. Fast Breeders, such as Monju, are designed to produce more plutonium than they consume.

Japan appears to still be counting on its dangerous “Monju” prototype fast breeder reactor, which has undergone an almost endless chain of dangerous failures, including, as recently as this month when one third of its safety cameras were reported broken! http://japansafety.wordpress.com/2014/10/14/one-third-of-safety-cameras-at-monju-reactor-broken-the-japan-times/

But, there is much much more, such as its 1995 sodium leak and fire.

Monju Nuclear

Someone needs to send a copy of “The Gambler” to the Japanese government, because they still don’t “know when to run”! (It’s also the first rule of martial arts.) They need to stop with the dangerous nuclear Monju Mojo and planned reprocessing and MOX fuel production. The world can’t stand any more nuclear hoodoo.

Excerpted from Japan’s “Strategic Energy Plan” April, 2014
Promotion of the nuclear fuel cycle policy
(i) Promotion of reprocessing and plutonium use in LWRs

The basic policy of Japan is to promote a nuclear fuel cycle that reprocesses spent fuels and effectively utilizes the plutonium retrieved,…

Regarding the nuclear fuel cycle, many problems have arisen, including delays in completion of the Rokkasho reprocessing plant and troubles at the Monju prototype fast breeder reactor….

Specifically, GOJ will promote plutonium use in LWRs, and proceed with such measures as completion of the Rokkasho reprocessing plant, construction of a MOX fuel processing plant, and completion of the Mutsu interim storage facility on the underlying premise of ensuring safety. ….

GOJ will reform any aspects of Monju research thoroughly taking into account lessons learnt from previous efforts and aim to compile the research results expected in the Monju research plan. Also GOJ will position Monju as an international research center for technological development,….

Problems related to the nuclear fuel cycle cannot be solved in a short period but require a mid- to long-term approach….” (Emphasis our own) [Japan] “Strategic Energy Plan April, 2014, Corresponding part“, Read the entire thing here: (IAEA, INFCIRC/549/Add.1/17, Date: 10 Oct. 2014, © IAEA, 2014) http://www.iaea.org/Publications/Documents/Infcircs/2014/infcirc549a1-17.pdf


Also based on, “IAEA, INFCIRC/549/Add.1/17, Date: 10 Oct. 2014
General Distribution, Original: English,’Communication received from Japan Concerning its Policies Regarding the Management of Plutonium

The information is dated. The date of the document is Oct. 10, 2014, but the date of the information is December 2013. We have seen this at Scottish EPA and elsewhere. It is totally unacceptable in this day of instant communication. Even in earlier times it would be late! But, it still provides food for thought.

Note that 1 tonne is 1,000 kg and 1 kg is 2.204 pounds (with these large amounts the extra digits make a difference).

(Numbers rounded to 100 kg, unless they are less than 50 kg)

From ANNEX B of IAEA, INFCIRC/549/Add.1/17, Date: 10 Oct. 2014

1. “Unirradiated separated plutonium in product stores at reprocessing plants“:

Japan reports as of 31 December 2013, 4.4 tonnes of plutonium, compared to 4.4 tonnes of plutonium for 2012. That is, there are 4,400 kg of plutonium or 9,698 pounds.

2. “Unirradiated separated plutonium in the course of manufacture or fabrication and plutonium contained in unirradiated semi-fabricated or unfinished products at fuel or other fabricating plants or elsewhere“:

As of 31 December 2013, Japan reports 2.9 tonnes of plutonium, compared to 2.9 tonnes of plutonium for 2012. That is there are 2,900 kg or 6,392 pounds.

3. “Plutonium contained in unirradiated MOX fuel or other fabricated products at reactor sites or elsewhere.”

As of 31 December 2013, 3.1 tonnes of plutonium, compared to 1.6 tonnes of plutonium for 2012. That is, there was 1.5 tonnes (1,500 kg-3,306 pounds) more in December of 2013 than in the previous year.

Was this shipped to Japan from elsewhere? Or where did it come from?

They seem to be from Areva’s Melox plant, as of June 2013: (see: http://www.cnic.jp/english/topics/cycle/MOX/shipment/shipmentmoxjun13.html and and Areva Press Release about its arrival on June 27, 2013)

4. “Unirradiated separated plutonium held elsewhere“:

0.4 tonnes in both years. 400 kg or 882 pounds

Where is it held? At Sellafield, Cumbria, UK? At the Savannah River Site, South Carolina, USA? In France? Is it somewhere within Japan, considering that Note ii. tells us that any of the plutonium listed in lines 1-4 held in other countries is not included?

They put as notes:
i) “Plutonium included in lines 1-4 above belonging to foreign bodies
zero or none.
ii) “Plutonium in any of the forms in lines 1-4 above held in locations in other countries and therefore not included above
The amount was 34.9 tonnes in 2012 and was 36.3 tonnes in December of 2013, i.e. an increase of 1.4 tonnes. Where is this plutonium being held? So, when they speak of reprocessing and fabricating plants in 1 to 4 it is in Japan? And, the amount in ii includes what is at reprocessing and fabricating plants abroad? In France or Sellafield or the USA?
iii) “Plutonium not included that is in international shipment“, none as of December 2013.


1. “Plutonium contained in spent fuel at civil reactor sites

As of 31 December 2013, 134 tonnes of plutonium, compared to 133 tonnes of plutonium for 2012 – an increase of 1 tonne, that is 1,000 kg or 2,204 pounds.

There is no explanation as to where this increase came from. Was it from the Monju reactor? Oi reactor no. 4 stopped in Sept. 2013, May 2012 Tomari NPP reactor in Hokkaido shut down so it may be from them, at least in part.

2. “Plutonium contained in spent fuel at reprocessing plants“.

As of 31 December 2013, 27 tonnes of plutonium, compared to 26 tonnes of plutonium for 2012. That is an extra tonne or 1,000 kg.

3. “Plutonium contained in spent fuel held elsewhere

less than 500 kg plutonium; less than 500 kg plutonium

(i) “The treatment of material sent for direct disposal will need further consideration when specific plans for direct disposal have taken concrete form“.
(ii) “Definitions“:
Line 1: covers estimated amounts of plutonium contained in fuel discharged from civil reactors“.
Line 2: covers estimated amounts of plutonium contained in fuel received at reprocessing plants but not yet processed.” (Emphasis our own)
(Note that the original was a picture file so that our quotes are re-typed and we cannot guarantee that they are error free, even though we double checked. So, if you need the information for anything other than general information, please return to the original IAEA source.) Please see the original here: “IAEA, INFCIRC/549/Add.1/17, Date: 10 Oct. 2014, © IAEA, 2014, http://www.iaea.org/Publications/Documents/Infcircs/2014/infcirc549a1-17.pdf

MONJU REACTOR SAGA from wikipedia.
It’s not in sequential order but is comprehensive.

Monju (もんじゅ?) is a Japanese sodium-cooled fast reactor, located in Tsuruga, Fukui Prefecture… Monju is a sodium cooled, MOX-fueled, loop-type reactor with three primary coolant loops, producing 280 MWe from 714 MWt. It has a breeding ratio of approximately 1.2.[1]

Monju location
An accident in December 1995, in which a sodium leak caused a major fire, forced a shutdown. A subsequent scandal involving a cover-up of the scope of the accident delayed its restart until May 6, 2010, with renewed criticality reached on May 8, 2010.[2]

In August 2010 another accident, involving dropped machinery, shut down the reactor again. As of June 2011, the reactor has only generated electricity for one hour since its first testing two decades prior.[3]

As of the end of 2010, total funds spent on the reactor amounted to ¥1.08 trillion. An estimated ¥160-170 billion would be needed to continue to operate the reactor for another 10 years.[4]

As of 2014, the plant had cost 1 trillion yen ($9.8 billion).[5]

The plant is located on a site that spans 1.08 km2 (267 acres), the buildings occupy 28,678 m2 (7 acres), and it has 104,680 m2 of floor space. It employs 368 workers.[6]

Monju sodium leak and fire

On December 8, 1995, the reactor suffered a serious accident. Intense vibration caused a thermowell inside a pipe carrying sodium coolant to break, possibly at a defective weld point, allowing several hundred kilograms of sodium to leak out onto the floor below the pipe. Upon contact with air, the liquid sodium reacted with oxygen and moisture in the air, filling the room with caustic fumes and producing temperatures of several hundred degrees Celsius. The heat was so intense that it warped several steel structures in the room.[7] An alarm sounded around 7:30 p.m., switching the system over to manual operations, but a full operational shutdown was not ordered until around 9:00 p.m., after the fumes were detected. When investigators located the source of the spill they found as much as three tons of solidified sodium.

The leak occurred in the plant’s secondary cooling system, so the sodium was not radioactive. However, there was massive public outrage in Japan when it was revealed that Power Reactor and Nuclear Fuel Development Corporation (PNC), the semigovernmental agency then in charge of Monju, had tried to cover up the extent of the accident and resulting damage. This coverup included falsifying reports and the editing of a videotape taken immediately after the accident, as well as issuing a gag order that aimed to stop employees revealing that tapes had been edited.

“In‐Vessel Transfer Machine” falling accident

On August 26, 2010, a 3.3-tonne “In‐Vessel Transfer Machine” fell into the reactor vessel when being removed after a scheduled fuel replacement operation.[8] In October 13, 2010, an unsuccessful attempt was made to retrieve the machine.[9] The JAEA tried to recover the device used in fuel exchange but failed as it had become misshapen, preventing its retrieval through the upper lid.[10]

The JAEA began preparatory engineering work on May 24, 2011 to set up equipment to be used to retrieve the IVTM that fell inside the vessel.[10] The fallen device was successfully retrieved from the reactor vessel on June 23, 2011.[11]

Sodium-heater failure

In the first weekend June 2012 the sodium heater, that keeps sodium molten as a secondary coolant for the reactor, halted half an hour from about 4:30 p.m. Sunday 2 June. The power-supply was checked, but insufficient information in the service manual, caused the heater to stop, causing a fall of about 40 C from 200 C of the sodium temperature. Although – under the internal rules of JAEA – the failure was regarded a too minor incident to report it to the authorities, the day after the Nuclear Regulation Authority and local governments were informed about the incident. But it was not made public.[12]

New Director of the JAEA appointed

On 31 May 2013 science and technology minister Hakubun Shimomura announced that Shojiro Matsuura, (77 year) the former chairman of the Nuclear Safety Commission, would be the next president of JAEA on Monday 3 June . In this function he would reorganize the JAEA, with safety as a top priority. Former[citation needed] functions of Matsuura:[13]
November 1998 President, JAERI (After experience as Vice President)
April 2000 Chairman, Nuclear Safety Commission
Present functions:
November 2012 Chairman, Japan Nuclear Safety Institute
June 2013 President, Japan Atomic Energy Agency [14]

Safety inspections June 2013

During safety inspections conducted by the NRA between 3 and 21 June 2013, it was revealed that the safety-inspections on another 2,300 pieces of equipment had been omitted by JAEA.[15]

Further Incidents

On 16 February 2012 NISA reported that a sodium-detector malfunctioned. About 3 p.m local time the alarm went off. And a ventilator that should cool a pipe stopped. According to NISA no leakage was found, and there was no damage to the environment. Repairs were planned.[16]

On 30 April 2013 an operating error rendered two of the three emergency reactors unusable. During the monthly testing of the emergency diesel generators, staff forgot to close six of the twelve valves they had opened before testing, releasing thick black smoke. JAERI reported it to the Nuclear Regulation Authority as a breach of security regulations.[17]

On Monday 16 September 2013 before 3 a.m. the data transmission of the reactor stopped to the government’s Emergency Response Support System. Whether this was caused by the powerful typhoon, that went through Japan that day, was unknown. At that moment it was not possible to restore the connection, because the reactor site in Tsuruga was inaccessible due to mudslides and fallen trees caused by the typhoon.[18]


On November 24, 2000, Japan Atomic Energy Agency announced their intention to restart the Monju reactor. This decision was met with resistance by the public, resulting in a series of court battles. On January 27, 2003, the Nagoya High Court’s Kanazawa branch made a ruling reversing its earlier 1983 approval to build the reactor, but then on May 30, 2005, Japan’s Supreme Court gave the green light to reopen the Monju reactor.

The nuclear fuel was replaced for the restart. The original fuel loaded was mixed plutonium-uranium oxide with plutonium content of around 15-20%, but by 2009, due to natural radioactive decay, the fuel had only half of the original plutonium-241 content. This made achieving criticality impossible, requiring fuel replacement.[2]

The restart was scheduled for October 2008, having been moved back five months.[19] A restart date of February 2009 was again delayed due to the discovery of holes in the reactor’s auxiliary building; in August 2009 it was announced that restart might be in February 2010.[20]

In February 2010, JAEA obtained official approval to restart the reactor from the Japanese Government. The restart was definitely scheduled for the end of March.[21] In late February, JAEA requested Fukui Prefecture and Tsuruga City for deliberations aimed at resuming test operation. Having obtained the go-ahead from both entities, JAEA started criticality testing, after which it took some months before commercial operation could resume – as for any new nuclear plant.[22]

Operators started withdrawing control rods on May 6, 2010, marking the restart of the plant. The Fukui Prefecture governor, Issei Nishikawa asked the METI for additional stimulus to the prefecture including an expansion of the Shinkansen in turn for the restart of the plant. Monju achieved criticality on May 8, at 10:36 AM JST. Test runs were to continue until 2013, at which point the reactor could have started to feed power into the electric grid, being “full fledged” operation.[23]

In September 2011 the ministry of education, science and technology asked for the fiscal year of 2012 only 20 to 30 percent of the budget to maintain and manage the Monju reactor for the year 2011. The uncertainty about Japan’s future energy policy caused the ministry to conclude that the project could not proceed.[24]

The test run of the reactor, in which the reactor’s output would be raised to 40 percent of its capacity by the end of March 2012, was postponed on September 29, 2011, by the Japanese Government because the uncertainty over the future of nuclear energy. After the disaster in Fukushima, the Atomic Energy Commission of Japan made a start with a review of Japan’s long term energy policy. An outline of this policy would be published within 12 months. On September 30, officials of the Science and Technology ministry explained their decision not to start the test-run at meetings in the city of Tsuruga and Fukui Prefecture.[25]

The local Fukui edition of the Asahi Shinbun reported on June 22, 2012 that the reactor would restart in July 2012.[26]

After it was revealed in November 2012, that regular safety-checks had been omitted, the Nuclear Regulation Authority ordered JAEA to change its maintenance rules and inspection plans.

JAEA had failed to perform periodical safety checks on nearly 10,000 out of 39,000 pieces of equipment at the plant before the deadlines were met. Half May 2013 not all details were worked out, and under the rules set by the NRA, it was not allowed to change nuclear fuel rods or move the control rods. Therefore the restart of the reactor was not permitted.[27]

On 16 May the NRA ordered JAEA President Atsuyuki Suzuki to comply with their decisions and planned a meeting on May 23 to explain their reasoning, making it very likely that the NRA would block the reactivation of the reactor. In reaction to this Suzuki told reporters, “It takes nearly one year for preparation and it is physically quite difficult (to restart the reactor before March 2013).” [28]

Because the criticism of the NRA on the sloppy safety-controls Atsuyuki Suzuki resigned as President of JAEC on May 17. Although the resign was accepted by the government, the move was a surprise, because on May 16 Susuki had spoken on a meeting in the Japanese parliament, the Diet, and to the NRA secretariat and had pleaded to restore the public’s trust in the JAEC. The NRA commented, that Suzuki’s resignation had not solved fundamental problems and that there was a need to restructure the JAEA as an organization.

Suzuki (born 1942) was an authority on the nuclear fuel cycle, and became President of the JAEA in August 2010. Before this he was a professor at the University of Tokyo and the chairman of the former Nuclear Safety Commission. Yonezo Tsujikura, vice president of the JAEA, served as acting president until a successor was chosen.[29]

Restart officially prohibited

On 29 May 2013, the NRA made its decision official: restarting the fast-breeder reactor was prohibited. The NRA called the safety culture at the plant “deteriorated”, because the problems at the plant were not addressed, while the people were aware of the delayed inspections. Besides this, the NRA announced that an assessment would be made, whether geologic faults at the premises of the Monju facility are active. At that moment the NRA had similar plans for survey’s at six facilities all over Japan. On top of this, the NRA demanded, that JAEA should rebuild and complete a maintenance and management system by appropriately allocating funds and human resources to prevent the recurrence of coolant leakages and other problems, before it could plan a restart of the reactor.[30]

Decommissioning plans

On 21 October 2011 the Japanese government installed a commission to study ways to cut wasteful expenditures, one possibility would be decommissioning the Monju prototype fast-breeder reactor. The Government Revitalization Unit took up this issue, because the calls to abolish this reactor were growing after the nuclear crisis in Fukushima. As the crisis at the Fukushima Daiichi power plant made it difficult, if not impossible, to build new nuclear power plants, the government panel would also review subsidies for localities with atomic power plants as well as functions of related entities such as the Japan Atomic Energy Agency.[31]

On 27 November nuclear disaster minister Goshi Hosono said that scrapping the Monju-fast-breeder reactor is an option that will be given serious thought. The remark was made after a visit to the plant. Politicians and private-sector experts of the ruling Democratic Party of Japan made proposals for a thorough operational and budgetary review in the government’s energy policy screening session earlier in the week before his visit.

Hosono said: “There are various opinions and (the government) should consider them including such a possibility. The long-running Monju program has come to a ‘crossroad.'”

At the same time a committee of the House of Representatives was planning to demand in December 2011 a review of the Monju-program.[32]

2012 budget

At the end of the fiscal year 2011, a budget of 29 million dollars was asked to continue the Monju project. This money would cover the costs of maintenance and the costs of the test-run, planned in the summer of 2012. On 20 November a seven member Japanese government commission decided that the future of the Monju-reactor should be thoroughly reviewed before a decision could be made for this 2012 budget. Some members of the commission thought that there would be only little public support to restart the fast-breeder project, and that it was uncertain that the reactor could be taken into commercial service in 2050 as originally planned. Other members said that the Monju project should be stopped completely, and that all efforts should be put into the international fusion-reactor project ITER instead. Decisions about the 2012-budget would be taken after the discussions in a panel of cabinet members about the nuclear policy of Japan, including the fast-breeder reactor project, would be complete.[33]

2013 review

Reports in 2012 indicated that plans to generate electricity at Monju would be abandoned, and the plan repurposed into a research centre for handling spent nuclear fuel.[5][34]

Seismic research in 2011, 2012 and 2013

On 5 March 2012 a group of seismic researchers revealed the possibility of a 7.4M (or even more potent) earthquake under the Tsuruga Nuclear Powerplant. Before this date the Japanese governmental Earthquake Research Committee and Japan Atomic Power had calculated that the Urasoko fault under the plant, combined with other faults connected to it, was around 25 km long. and could cause a 7.2M quake and a 1.7 meter displacement. On top of this, the presence of the oceanic faults were not taken into account by NISA and JAP in the assessment of the safety of the Tsuruga nuclear power plant.

Analysis of sonic survey and other data provided by Japan Atomic Power analysed by a panel of experts of Nuclear and Industrial Safety Agency showed the presence of multiple faults existing within 2 to 3 km from the Urasoko fault. According to Sugiyama, a member of this group of scientists, these faults were highly likely to be activated together, and this would extend the length of the Urasoko fault to 35 km.

Computer-simulations calculating the length of a fault based on its displacement, showed the Urasoko fault to be 39 km long, a result close to the length estimated by the sonic survey data, and the fault could cause some 5 meter displacement when activated together with other faults.

Yuichi Sugiyama, the leader of this research group of the National Institute of Advanced Industrial Science and Technology, warned that – as other faults on the south side of the Urasoko fault could become activated together – “The worst-case scenario should be taken into consideration”

According to the experts there were many other faults located under one reactor on the west side of the Urasoku fault that could move also simultaneously. If this would be confirmed, the location of the Tsuruga nuclear plant would be disqualified.[35]

On 6 March 2012 NISA asked Japan Atomic Power Co. to reassess the worst-case scenario for earthquakes at the Tsuruga Nuclear Power Plant. What damage this could do to the buildings on the site, because the Urazoko fault, running around 250 meters from the reactor buildings, could have a serious impact on the earthquake resistance of the power plant. NISA was also planning to send similar instructions to two other nuclear power plant operators in the Fukui area: Kansai Electric Power Company, and Japan Atomic Energy Agency. Because the Mihama Nuclear Power Plant and the Monju fast-breeder reactor could also be affected by a possible earthquake caused by the Urazoko fault.[36]

On 17 July 2013 a commission of 5 experts led by NRA commissioner Kunihiko Shimazaki started the investigations on the geological activity of 8 zones of crushed rock under the reactor. Whether these old fault-lines could move in conjunction with the active fault-line situated half a kilometer from the reactor-site, and would constitute a hazard for the reactor-safety. One of the experts, Chiba University professor Takahiro Miyauchi,[37] did not take part in the two-day survey, but would visit the site afterwards.[38] On Thursday 18 July Kunihiko Shimazaki told reporters, that his team could not yet reach a conclusion, further research was needed. Another acoustic survey of the grounds was planned by Japan Atomic Energy Agency and a geological examination to determine the age of the clay and stones in the faults. This could take a couple of months to finish, The assessment was planned at the end of August 2013.[39]

Other FBR programs in Japan

Jōyō is a test fast breeder reactor located in Ōarai, Ibaraki. The reactor was built in the 1970s for the purpose of experimental tests and the development of FBR technologies. The reactor remains in operation today.

The successor to Monju is expected to be a larger demonstration plant that will be completed around 2025, built by the newly formed Mitsubishi FBR Systems company.[40]” (Emphasis our own) http://en.wikipedia.org/wiki/Monju_Nuclear_Power_Plant

[See also: https://wikileaks.org/wiki/The_Monju_nuclear_reactor_leak, http://juzoitami1997.wordpress.com/2013/09/20/wicked-japans-nuclear-power-mafia-killed-a-monjus-employee/, “The Monju accident fall-out, (January 19, 1996)http://www.wiseinternational.org/node/1446 http://www.nytimes.com/1996/01/14/world/japanese-suicide-linked-to-nuclear-plant-leak.html%5D

Wikipedia References

1. http://www.jaea. go.jp/04/monju/EnglishSite/contents02-1.html
2. Tsutomu Yanagisawa (4 March 2011). “Monju, modified”. Nuclear Engineering International. Retrieved 28 January 2012.
3. TABUCHI, HIROKO (June 17, 2011). “Japan Strains to Fix a Reactor Damaged Before Quake”. The New York Times.
4. Kyodo News, “Monju costs far surpass usual nukes”, Japan Times, 4 July 2012, p. 3
5. “Japan to abandon troubled fast breeder reactor”. phys.org, Agence France-Presse (AFP). 7 February 2014. Archived from the original on 24 July 2014. Retrieved 24 July 2014.
6. JAEA (Japanese). Facilities Quick View.
8. “高速増殖原型炉もんじゅ燃料交換片付け作業中における炉内中継装置の落下について(中間報告)”. Turuga Head Office, JAEA (in Japanese). 1 October 2010. Retrieved 14 March 2011.
9. もんじゅ、装置回収また中断 ふたに引っ掛かる?. October 14, 2010.
10. The Mainichi Daily News. Agency gears up to retrieve device fallen inside Monju reactor.[dead link] May 24, 2011.[dead link]
11. Fallen device retrieved from Japan fast-breeder reactor June 23, 2011.
12. The Mainichi Shimbun (08 June 2013) Monju reactor’s sodium heater temporarily halted by error
13. Japan Atomic Energy Agency: Board of directors board of directors June 2013
14. The Mainich Shimbun (31 May 2013) Matsuura named to head Japan Atomic Energy Agency
15. The Mainichi Shimbun (22 June 2013) Monju operator skipped inspections of another 2,300 devices
16. The Mainichi Daily News (17 February 2012)Monju fast breeder reactor’s sodium detector hits trouble
17. Japan Today (2 May 2013) Black smoke detected from Monju reactor during test operations
18. The Mainichi Shimbun (16 September 2013) Data transmission from Monju reactor stopped
19. World Nuclear News. Monju enters extended testing. Aug 31, 2007.
20. Reuters. Japan fast-breeder reactor may restart in Feb. Aug 12, 2009.
21. The Yomiuri Online. Monju reactor clears hurdle to restart.[dead link] Feb 23, 2010.[dead link]
22. The Denki Shinbun. First step toward resuming test operation of Monju.[dead link] Feb 26, 2010.[dead link]
23. “Monju nuclear reactor reaches criticality after 14-year shutdown”. The Mainichi Daily News. 8 May 2010. Archived from the original on 2010-05-10.
24. JAIF (26 September 2011) Earth-quake-report 217: Japan to freeze fast-breeder reactor project
25. JAIF(September 29, 2011)Earthuake-report 219: Japan to postpone test to restart Monju reactor
26. Asahi Shinbun Fukui local edition (July 4 2012)
27. The Mainichi Shimbun (13 May 2013) Nuclear authority not to allow restart of Monju reactor
28. The Mainichi Shimbun(17 May 2013)Monju reactor unlikely to resume operations by next March: JAEA
29. The Mainichi Shimbun (17 May 2013) Head of operator of trouble-plagued fast-breeder reactor resigns
30. “Monju to stop restart”. http://fukushima-is-still-news.over-blog.com/. 30 May 2013. Archived from the original on 28 July 2014. Retrieved 28 July 2014. “Monju operator ordered to stop restart preparation, Regulators effectively ban Monju reactor from restarting”
31. Mainichi Japan (22 October 2011) Gov’t cost-cutting unit to study Monju reactor’s abolition
32. The Mainichi Daily News (28 November 2011) Gov’t to consider scrapping of Monju reactor as option: Hosono
33. NHK-world (20 November 2011) Govt panel seeks to revise nuclear projects
34. “Monju may be relegated to site for waste radiation-reduction studies”. The Japan Times. 7 February 2014. Retrieved 9 February 2014.
35. The Mainichi Shimbun (5 March 2012)Fault under Tsuruga nuclear plant could trigger M7.4 quake: research
36. The Mainichi Shimbun (7 March 2012) Quake severity estimate for Tsuruga nuclear plant to be reassessed
37. The Mainichi Shimbun (19 July 2013) Govt’s nuclear fuel cycle policy teeters on edge as onsite Monju inspection completed
38. The MainichiShimbun (17 July 2013) Panel starts investigation on geologic faults at Monju reactor site
39. The Mainichi Shimbun (19 July 2013) Conclusion on faults under Monju reactor will take time: survey team
40. “New fast breeder reactor for Japan”. Nuclear Engineering International. 6 June 2006. Retrieved 16 March 2011. http://en.wikipedia.org/wiki/Monju_Nuclear_Power_Plant (Wikipedia article was Last modified 27 August 2014)