Recent content by marwood

  1. M

    Japan Earthquake: Nuclear Plants at Fukushima Daiichi

    On Wednesday U.S. Nuclear Regulatory Commission Chairman Gregory Jaczko stated at a congressional hearing in Washington: ''Now, in addition to the three reactors that were operating at the time of the incident, a fourth reactor is also right now under concern. This reactor was shut down...
  2. M

    Japan Earthquake: Nuclear Plants at Fukushima Daiichi

    The reports are indicating that hydrogen escaping into the outer shell of the reactor building caused the explosion which blew off the top of reactor building 1. The steel frame atop the reactor building 1 is visible to the right in the photo at...
  3. M

    Japan Earthquake: Nuclear Plants at Fukushima Daiichi

    Informative? or opinion piece? Dr. Josef Oehman is not trained nor an expert in nuclear plant operation or technology. His academic biography states: ''The main research interest of Dr. Josef Oehmen is risk management in the value chain, with a special focus on lean product development. Risk...
  4. M

    Japan Earthquake: Nuclear Plants at Fukushima Daiichi

    Summary of each Fukushima Daiichi NPP reactor as of late Tue 15th Tokyo time. http://www.jaif.or.jp/english/news_images/pdf/ENGNEWS01_1300189582P.pdf Looks like No.2 is being cooled with seawater -- so will be non-recoverable.
  5. M

    Japan Earthquake: Nuclear Plants at Fukushima Daiichi

    DrDu doesn't seem very impressed with the ''scientific data'' being presented on the nei.cachefly.net site. The reported decline in radiation levels to 60millirems/hr is over 2000 x background radiation levels, suggesting ?? ongoing emissions from the No.2 reactor steam venting? or from a...
  6. M

    Japan Earthquake: Nuclear Plants at Fukushima Daiichi

    ''When planes lands they shake off accumulated contamination (Cs-137 and other radionuclide's) from their high altitude flights ..." Is the contamination distribution denser at high altitudes (and up into the jet stream) or do the planes come back with greater contamination because of their...
  7. M

    Japan Earthquake: Nuclear Plants at Fukushima Daiichi

    NHK TV showing video of smoke rising from Fukushima Daichi No 3 http://www.kcet.org/disasterinjapan/
  8. M

    Japan Earthquake: Nuclear Plants at Fukushima Daiichi

    21 microsievrts per hour according to the linked reference ''Tohoku Electric Power said, Onagawa (I long to) from a nuclear power plant (town Onagawa, Miyagi Prefecture Ishinomaki) on-site radiation monitoring system, the reference value of the reporting obligations prescribed by a Nuclear...
  9. M

    Japan Earthquake: Nuclear Plants at Fukushima Daiichi

    update from WNN at http://www.world-nuclear-news.org/RS_Venting_at_Fukushima_Daiichi_3_1303111.html