Brown, Frederick4

March 29th, 2011 – Status of 3 Units and 4 pools – Realistic Scenarios

From: Brown, Frederick Sent: Tuesday, March 29, 2011 10:56 PM To: Cheok, Michael; Gibson, Kathy Cc: Ruland, William; Dudes, Laura; Uhle, Jennifer; Hiland, Patrick; Hackett, Edwin; Skeen, David; RST01 Hoc; Hoc, PMT12; McDermott,…


Quantitative Estimation (QPE) and Quantitative Forecasting (QPF) of Precipitation

 Quantitative Precipitation Estimation (QPE) and Quantitative Precipitation Forecasting (QPF) of Japan Meteorological Agency  TYPHOON COMMITTEE Integrated Workshop on Urban Flood Risk Management in a Changing Climate: Sustainable and Adaptation Challenges  Macao, China 06-10…


Average burnup of damaged fuels loaded in Fukushima Reactors – 134Cs/137Cs

134Cs/137Cs ratio method Numerical analysis Analysis of actually measured 134Cs/137Cs ratio contaminated soils within the range of 100km from the 1F NPPs Discussion Overview of 1F NPPs accident Station blackout accompanied with loss…


Overview of Deterministic Safety Analysis: Areas of Analysis and Computer Codes

Lesson: IV 2_1 Purpose: To present and explain the different areas of analysis (thermal-hydraulic, neutronics, etc.) and the computer codes used Learning objectives: To be aware of different evaluation methodologies applied in safety…

Enformable Primary Parameters of Fukushima Daiichi Unit 1 (As of 12-13)_Page_2

Primary Parameters of Fukushima Daiichi Unit 1 as of December 13th, 2011

Primary Parameters of Fukushima Daiichi Unit 1 (As of 12/13)

Enformable ENGNEWS01_1323932399P_Page_4

Environmental impacts of the Fukushima Nuclear Accident (as of December 15, 2011)

  Environmental Impact of the Fukushima Nuclear Accident Environmental impacts of the Fukushima Nuclear Accident are updated in a Table. The attached map summarizes the concentrations of radioactive materials in the soil and the…

Enformable handouts_111215_01-j_Page_06

Effects of aging at Fukushima Daiichi Reactor 1

  December 15, 2011Impact of aging in Fukushima Daiichi Nuclear Power Plant Accident No. 1 reactor in Fukushima Daiichi Nuclear Power Station (1.79MB)

Lee, Richard6

March 27th, 2011 – Salt effects on molten core materials – Effects on energetics

From: Lee, Richard To: Hoxie, Chris; Uhle, Jennifer Cc: Gibson, Kathy Sent: Sun Mar 27 10:35:35 2011 Subject: RE: Brian’s Q Consulted both Mike and Dana on the matter – Salt effects on…

Sheron, Brian3

March 26th, 2011 – Melt that relocates to lower head will be mixed with a lot of sea salt

From: Sheron, Brian To: Lee, Richard Cc: Uhle, Jennifer; Gibson, Kathy Sent: Sat Mar 26 16:40:11 2011 Subject: RE: Sharing info. with DOE Science Council Remember that the lower head is filled with…

Lee, Richard5

March 26th, 2011 – Fuel Coolant Interaction Analysis – Worse Case Melt Scenario

From: Lee, Richard To: Gibson, Kathy Sent: Sat Mar 26 09:09:19 2011 Subject: Sharing info. with DOE Science Council Dear Kathy: Sud and I had asked Mike Corradini to perform an assessment on…

Tinkler, Charles3

March 26th, 2011 – Mark 1 hydrogen explosion damaging torus/suppression pool

From: Tinkler,’Charles To: Gibson, Kathy Sent: Sat Mar 26 13:23:10 2011 Subject: RE: Mark I failure There was speculation that hydrogen explosion in the reactor building may have damaged the torus/suppression pool. However,…

Tinkler, Charles

March 26th, 2011 – Mark 1 containment vulnerable to melt through – SBO

From: Tinkler, Charles To: Gibson, Kathy Sent: Sat Mar 26 12:42:22 2011 Subject: Mark I failure The Mark I containment is relatively vulnerable to drywell shell/liner melt thru – if the reactor vessel…

Tinkler, Charles2

March 26th, 2011 – Mark 1 liner failure during severe accidents – Some made changes

From: Tinkler, Charles To: Gibson, Kathy Sent: Sat Mar 26 13:03:47 2011 Subject: RE: Mark I failure Sure, I will set up briefing More background : Mark I liner failure during severe accidents…

West side of Reactor 4 prior to debris removal

Fukushima Prefecture to Suspend Applications for Nuclear Subsidies

Fukushima Prefecture will no longer apply for government subsidies for hosting nuclear power plants. The Fukushima prefectural government concluded it will not apply for about three billion yen, or nearly 38-million dollars in…


Palisades Nuclear Station – Loss of both main feedpumps

Power Reactor Event Number: 47523 Facility: PALISADES Region: 3 State: MI Unit: [1] [ ] [ ] RX Type: [1] CE NRC Notified By: MIKE LEE HQ OPS Officer: VINCE KLCO Notification Date: 12/14/2011 Notification Time:…


If enriching Uranium and Plutonium is profitable – Why is Japan dumping them as waste?

The Japanese government admitted Thursday that nuclear substances have been found in the waste of domestic facilities subject to International Atomic Energy Agency inspection, but left unreported to the U.N. nuclear watchdog. Top…

Stutzke, Martin4

March 24th, 2011 – Core Damage Frequencies – GI-199 – Staff will re-examine some or all

From: Stutzke, Martin Sent: Thursday, March 24, 2011 6:06 PM To: Boska, John; Coe, Doug; Beasley, Benjamin Subject: RE: question on core damage frequency The seismic CDFs do not assume that the earthquake…

Enformable Pages from ML11322A172-9_Page_1

March 23rd, 2011 – NRC Directions on Continuing Agency Response on Fukushima

March 23, 2011 NUCLEAR REGULATORY COMMISSION DIRECTS STAFF ON CONTINUING AGENCY RESPONSE TO JAPAN EVENTS; ADJUSTS COMMISSION SCHEDULE The Nuclear Regulatory Commission has voted to launch a two-pronged review of U.S. nuclear power…

Enformable Pages from ML11322A172-8_Page_1

March 21st, 2011 – International Items of Interest – Fukushima

INTERNATIONAL ITEMS OF INTEREST OFFICE OF INTERNATIONAL PROGRAMS Week of March 21, 2011 OIP Vision: To expand nuclear safety and security worldwide through lasting partnerships. Our Mission: OIP enhances nuclear safety and security…

Enformable Sandia Letter Reports_Page_02

March 18th, 2011 – Accident progression at Fukushima Reactor 4 SFP MELCOR Request

From: Dehn, Jeff Sent: Friday, March 18, 2011 11:39 AM To: Gauntt, Randall Cc: Wagner, Katie; Lee, Richard; Sangimino, Donna-Marie Subject: RE: Fukushima Attachments: SFP Reports.docx Hi Randy, We’ve discussed internally, and the documents are approved for distribution to…

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