JY

Jy or JY may refer to:

People

  • Jimmy Young (disc jockey) (born 1921), former BBC radio broadcaster
  • James Young (American musician) (born 1949), guitarist for Styx
  • Joey Yung (born 1980), Hong Kong cantopop singer
  • Other uses

  • Air Turks and Caicos, IATA airline designator JY
  • Jansky (symbol Jy), a non-SI unit of spectral flux density
  • Japanese yen, a currency unit
  • Jia Yu Channel, a 24-hour Mandarin subscription channel founded in Malaysia
  • Joyo

    Joyo may refer to:

  • Joyo (tribe) in Pakistan
  • Jōyō, Kyoto, a city in Japan
  • Jōyō, Fukuoka, a former town in Japan
  • Jōyō kanji, a set of characters used in Japanese writing
  • Joyo Bank, a banking company in Japan
  • Joyo.com, a Chinese website acquired by Amazon.com
  • Jōyō (nuclear reactor), a liquid metal research reactor
  • Jōyō (nuclear reactor)

    Jōyō (常陽) is a test sodium-cooled fast reactor located in Ōarai, Ibaraki, Japan, operated by the Japan Atomic Energy Agency. The name comes from the previous country name of the area around Ibaraki.

    It was made with the purpose of doing tests on and advancing the development of that type of reactor, as an irradiation test facility for construction materials. It also does tests with the nuclear fuel as well as activation experiments.

    The reactor has gone through 3 different core changes.

  • MK-I April 24, 1977 - January 1, 1982 (the power was 50-75 MWt)
  • MK-II November 22, 1982 - September 12, 1997. This core surpassed 50,000 hours of operating time with 100 MWt.
  • MK-III July 2, 2003–2007 (140-150 MWt).
  • The current core provides the neutron flux of 4×1015 cm−2s−1 for E>0.1 MeV.

    After an incident in 2007, the reactor is suspended for repairing, recovery works were planned to be completed in 2014.

    See also

  • Monju
  • Nuclear power in Japan
  • External links

  • Official site
  • T. Soga, W. Itagaki, Y. Kihara, Y. Maeda. Endeavor to improve in-pile testing techniques in the experimental fast reactor Joyo. / In-pile testing and instrumentation for development of generation-IV fuels and materials. Proceedings of a technical meeting held in Halden, Norway, 21–24 August 2012. - IAEA, 2013. - P. 107-122.
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