Fukushima Unit 2 Containment Repair Research Underway
IRID announced details of work that is now underway to determine if a method for repairing the unit 2 suppression
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torus
IRID Completes Full Scale Fukushima Torus Model
IRID has completed a full sized model of the torus (suppression chamber) based on the damaged reactors at Fukushima Daiichi.
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Fukushima Unit 3 3D Torus Scans Begin
3D inspections of the unit 3 torus room are set to begin December 22nd. This work is expected to investigate
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Fukushima Daiichi Reactors Torus Structures In Need Of Reinforcement
IRID published a call for proposals mid June related to research and development into a way to reinforce the torus structures
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Fukushima Daiichi Updates From IRID Part 2; New Robots & Work
As part of reviewing IRID’s updates on work progress for Fukushima Daiichi, new information about robots to be used and
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IRID Works On Four New Torus Robots For Fukushima Daiichi
IRID has announced ongoing testing work on four new robots to be used to inspect inside reactors at Fukushima Daiichi.
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New Robot Torus Room Inspections Under Preparation In Fukushima Unit 2
Two newer underwater robots are being used to inspect the torus rooms of units 1 and 2. The robots built
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New Unit 1 Findings Indicate Contamination Path
TEPCO’s new reports on the unit 1 torus room already showed that a vacuum breaker caused an issue. Now they
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Fukushima Unit 1 New Torus Room Inspections
What are they doing? TEPCO & Hitachi are apparently looking for damage to the vacuum breaker pipes that run in
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Damage Inside Fukushima Unit 4 Containment
Yomiuri has released a more detailed article after yanking an earlier version. Two Yomiuri reporters were allowed into unit 4’s
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Fukushima Unit 2 Torus Has A Hole In It
Kyodo is reporting a 3cm hole in the unit 2 torus. TEPCO claims that water is leaking out through this
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Fukushima Unit 2 Torus Ultrasound Finds Internal Water Level
The ultrasound robot has been run inside unit 2 to attempt to determine the water level for the torus tube.
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Unit 1 Scans Find Highly Contaminated Vent Pipe
Robots with sophisticated gamma scanning cameras were sent in to unit 1 to establish contaminated areas as decontamination efforts take
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Torus Ultrasound Inspection Being Done On Unit 2
TEPCO has done test runs with the ultrasound robot intended to detect the water level inside the torus tubes at
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TEPCO Fails To Release Portion Of Unit 1 Torus Inspection
TEPCO recently released videos and reports of their work in the unit 1 torus room. The work was split into
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Unit 1 Torus Investigation Nov 2013; Initial Findings
TEPCO has done an inspection of Unit 1’s torus room, this time with a floating robot boat. TEPCO released most
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Unit 1 Leaks Found; We Have The Details
TEPCO has investigated the torus room of unit 1 with the new boat robot. This was an effort to look
Read moreUnit 2 Final Investigation Of Torus
TEPCO has completed the last portion of the investigation of the torus and downcomer pipes in unit 2. The walking
Read moreUnit 2 Torus Inspection March 13, 2013
TEPCO inspected another section of the torus of unit 2 today. It appears TEPCO intends to eventually inspect the entire
Read moreNew Torus Inspection At Unit 2
TEPCO sent the unnamed walker bot back into unit 2’s torus room for another inspection effort. This trip looked at
Read moreUnit 1 Torus Radiation Shows Possible Source Location
TEPCO recently inspected the unit 1 torus room for a second time as we reported here. Workers involved in the
Read moreUnit 1 Torus Inspection Review
New work done around February 21 to 22 has been posted by TEPCO and confirmed by workers. The newest work
Read moreTEPCO Restarts Nitrogen Injection In Unit 1 Suppression Chamber
From today’s TEPCO report, they intend to restart nitrogen injection into the torus (suppression chamber). This has been done frequently
Read moreTEPCO Inspects Unit 2 Torus With Walking Robot
TEPCO did inspection work at Unit 2 in the torus with the Toshiba walker-bot (it doesn’t have a name apparently)
Read moreUnit 1; Post Quake Reaction & Torus Oddity Indicate Larger Problem
We have reported extensively about a phenomenon going on inside unit 1 since the accident. Whenever there is a strong
Read moreHydrogen Stays Elevated At Unit 1 Fukushima Daiichi
Hydrogen in the containment of unit 1 has continued to be elevated as they work to purge hydrogen from the
Read moreTEPCO Trying To Remove Hydrogen From Torus
This was initially reported in a TEPCO roadmap report that they were monitoring a pocket of hydrogen that has developed
Read moreUnit 1 Torus Gas Inspection
TEPCO posted a section in a larger roadmap in Japanese about an investigation into the torus of unit 1 over
Read moreUnit 1, Where The Melted Fuel Is
Update: The source for unit 1 torus radiation had an incorrect link. The correct link has been added to the
Read moreAdditional Analysis Of Unit 1 Containment Inspection
Workers did a brief inspection inside the containment of unit 1 earlier this week. We reported the initial findings yesterday.
Read moreTorus Bellows As Weak Point In Fukushima Reactors
Many penetrations and connections within a reactor vessel can cause weak points where structural failure or corium (melted fuel) leakage
Read moreUnit 1 Torus Inspection: Analysis & New Additional Images
The SimplyInfo team has been reviewing TEPCO’s latest effort to inspect unit 1 at Fukushima Daiichi. Work was done by
Read more140 New Enhanced Images Inside Fukushima Unit 2 Torus Inspection
We have about 140 images from the video investigation of unit 2 on April 18 using the Topy robot. The
Read moreUnit 2 Robot Investigation Of Torus
TEPCO has released two photos and no other details of the robot investigation into the torus room (suppression chamber) area
Read moreUnit 2 Torus Inspection Video: Images And Analysis
Video was also released of the unit 2 torus inspection. The video quality is quite poor compared to the video
Read moreUnit 3 Torus Inspection Video And New Images And Analysis
TEPCO has released a video of the 8 minute trip into unit 3. We have some enhanced still images from
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