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Study says Fukushima region is safe enough for people to return
Fukushima's ill-fated nuclear power plant may still be so dangerous that it kills robots, but residents are trickling back as officials decide that radiation levels are safe in some areas. But are they safe enough that you'd never have to worry about long-term effects? According to two researchers, the answer is yes. They've published a study indicating that the cesium radiation levels in Date, 37 miles away from the Fukushima plant, have dropped so quickly (60 percent just between 2011 and 2013) that residents shouldn't suffer any harm. In fact, they may be safer than usual. The median lifetime radiation dose (18 millisieverts) should be less than what you typically receive just by living on Earth.
Japan to restart nuclear power tomorrow after energy prices soar
It's been four years since an earthquake and tsunami knocked out the nuclear reactor at Fukushima, causing a meltdown and mass evacuation of the local area. The tragedy eventually saw the shut down of all of the nation's nuclear power plants, with the last facilities closing down in late 2013. This week, the country is going to start one of them back up: tomorrow, Japan will switch on reactor No.1 at the Sendai nuclear power plant.
Fukushima nuclear reactor will get mapped with subatomic particles
Scientists from Los Alamos National Lab have discovered how to look through and map just about anything with a new process: the science-fictionally sounding muon tomography. Even in places like the highly radioactive Fukushima reactor, the method doesn't require any disassembly or any need for x-rays or ultrasound. Instead it logs the movement of muons (of course), a radioactive subatomic particle that exists, well, everywhere. Two giant aluminum sides are put either side of whatever needs looking into, and the system measures the trajectory of these muon particles. From this, the scientists are able sketch the object, given enough of the tiny things.
Toshiba tests robotic quadruped for nuclear plant inspection, hopes to help clean up Fukushima
The cleanup efforts at Fukushima's nuclear facility are been peppered with robotics: packbots, a refitted TALON, even a UAV - but Toshiba figures it could use at least one more. The firm's contribution is known only as the Quadruped walking robot, and it looks somewhat like Boston Dynamics' AlphaDog. Shuffling along on four double-jointed legs, the Quadruped can traverse uneven terrain and stairs at 0.6 mph, and is capable of exploring uninhabitable and irradiated areas for two hours before requiring a recharge. A second robot rides on the Quadruped's back, and can explore tight spaces for up to an hour when tethered to the its mentor. Toshiba is outfitting the duo with cameras and radiation dosimeters, and hopes to use them to help officials survey the damage in the plant's deadlier corners. Check out the machine's official press demonstration in the video after the break.
Bunnie Huang builds open-source geiger counter to help Japanese civilians
Chumby co-creator Andrew "Bunnie" Huang was so moved by the Japanese Earthquake and Fukushima meltdown that he felt compelled to help out. Teaming up with nonprofit organization Safecast, he started work on a radiation monitor that was suitable for everyday civilian use, rather than it remain the sole province of officials. As well as its readings being able to stand up to scientific scrutiny, Huang's counter had to remain functional after a natural disaster, last for ages and be small enough for people to carry around. When he had finished building the reference design, he open-sourced the design so companies like Medcom and individuals could build their own. If you'd like to dabble in the arts of radiation monitoring, head on down to the source link for a fascinating insight into how it's done.
Toshiba's radiation spotting camera means the end of 'nuclear hotspot hide and seek'
Toshiba's developed a camera that will take the guesswork out of finding radiation hotspots. Since the deadly particles / waves gather together in clumps, cleanup crews have to hunt around blind using geiger counters. The "Portable Gamma Camera" overlays data from a radiation sensor onto a live picture -- areas shaded with red pixels have high radiation, yellow and green is medium and blue is low. Simply point it where you think the trouble is and it'll show you exactly where to avoid. A prototype was used during the initial stages of the Fukushima cleanup and this model's around half the size and it can even run on batteries -- giving you three hours of lifesaving radiation detection.
Scosche's RDTX-PRO for iPhone and iPod touch detects radiation
Scosche Industries produces a wide line of accessories for Apple products, ranging from iPad cases and flexible keyboards to screen cleaners and headphones. Now the company has developed and is selling the RDTX-PRO Radiation Detector and app for the iPhone and iPod touch. Primarily designed for those who are affected by radiation from the disaster at the Fukushima Daiichi Nuclear Power Station in Japan, the US$329.99 device will be sold at Synexx in Tokyo beginning in September. The RDTX-PRO can either be plugged into an iPhone or iPod touch via the dock connector or used as a standalone radiation alarm. When being used as a standalone alarm, the device runs on a single AA battery for up to 96 hours. What's unique is that the device requires no calibration at all, but can still detect gamma radiation above 60keV with +/- 5 percent accuracy. The accompanying free radTEST app makes it easy to interpret the readings, showing simple green (safe), yellow (elevated), and red (dangerous) zones on a meter. A digital display is available for advanced users who wish to get exact radiation level readings, and the results can be shared via Facebook and Twitter or viewed on a Google Map. Scosche is donating $10 of each sale to charities that are assisting people affected by the Tohoku Earthquake and Tsunami, with a goal of $1 million within two years.
Fukushima technician gives behind-the-scenes look at the cleanup operation
New details about the robotics deployed to help clean up Japan's Fukushima nuclear plant have emerged, thanks to a series of blog posts penned by an anonymous technician. Known only as 'S.H.', the blogger wrote of the effectiveness of the donated iRobot Packbots and Warriors (despite their prolonged exposure to electronics-damaging radiation), while criticizing the Tokyo Electric Power Company for what he saw as inept supervision, unreasonable schedules and disregard for technician safety. S.H., who helped retrofit a vacuum cleaner onto a robot to collect radioactive dust, also revealed technical details about the robots, explaining that they were manipulated with a PlayStation-style controller via a Panasonic Toughbook and that the devices were most effective in pairs, which allowed for better wireless connectivity and faster emergency response. The site was taken down after it began circulating on Twitter but IEEE kept and translated the posts, available for your perusal at the source link, below.
T-Hawk UAV enters Fukushima danger zone, returns with video
We'd love to head on down to Fukushima with a DSLR and some iodide pills, but that's obviously not going to happen. Sending in a flying robot seems to be the next best thing, though, and that's exactly what Tokyo Electric Power (TEPCO) has done. T-Hawk, a US-made MAV (Micro Air Vehicle) commonly used to search for roadside bombs in Iraq, made its Japanese debut last week when it photographed the nuclear plant from above, providing a detailed look at the interior damage a month after iRobot's visit. Small enough to fit in a (rather large) backpack, officially the T-Hawk is named for the tarantula hawk wasp species, but could just as easily have been named for the T. Hawk Street Fighter character, who also swoops in to attack his opponents from above. As expected, things look pretty nasty at ground zero, so head past the break for a video of the damage.
iRobot Packbots enter Fukushima nuclear plant to gather data, take photos, save lives (video)
iRobot recently deployed a pair of robots to the Fukushima Daiichi nuclear plant in Japan, where intense levels of radiation have made it increasingly dangerous for human rescue workers to operate. The remote-controlled Packbots entered one of Fukushima's reactor buildings on Sunday morning, in the hopes of providing authorities with a better idea of what's going on inside the plant's nether regions. Each Packbot entered the facility with an attached video camera, allowing Tokyo Electric Power (TEPCO) to receive live interior images and temperature readings of the troubled reactor building. It would certainly be a daunting task for any human to undertake, but the Packbot is specially designed to cope with hazardous conditions (in the past, it's been used to defuse bombs for the U.S. Army). And the Packbot isn't alone, either. Authorities are also using a mechanical excavator and transporter to wipe away some of the debris outside the plant, while an unmanned helicopter has been hoisted skyward, to take aerial photos of the area. TEPCO has yet to release information on the Packbots' findings, but if Sunday's mission proves to be a success, they'll be sent in to two other reactor buildings, to do it all over again. Check out a video and an extra image of the Packbot, after the break.
TALON robot gets declawed, helps Japan sniff out radiation (video)
Robotics experts at the Department of Energy's Idaho National Laboratory just taught an old war machine some new tricks, namely radiation detection -- a timely acquisition of knowledge, for sure. Swapping out rocket launchers and machine guns for a suite of radiological sensors, digital cameras, and a GPS device, this modified TALON will be used to map the radiation levels (and create a visual output) surrounding the Fukushima nuclear power plant. The newly modified TALON landed in Japan just last week, joining an existing team of robot helpers already in use in the disaster area, including two additional TALONs equipped with sensors that can identify more than 7500 environmental hazards. Guns for Geiger counters seems like a good trade to us; check the video up top to watch the 'bot try out its treads. [Thanks, John]
iRobot, QinetiQ machines to assist in Japan relief effort
A few weeks ago, it looked like robots would play a relatively small role in recovery efforts following the earthquake and subsequent nuclear crisis in Japan, but as concern grows over radiation leaks, robotics companies are positioning their mechanical offspring to do jobs deemed unsafe for humans. We've already heard of Aldebaran's plans for a fleet of rescue bots, and now QinetiQ and iRobot are lending automated assistance to the cause. QinetiQ plans to send in a set of Robotic Applique Kits -- used to convert Bobcat loaders into unmanned vehicles -- along with sensor machines like the TALON and Dragon. Meanwhile, iRobot's enlisted two each of its PackBots and Warriors to help aid in recovery -- the former is used by the US military for bomb disposal. Both companies have already deployed teams to Japan for training.
Monirobo measures radiation following nuclear crisis at Japan's Fukushima Daiichi power plant
According to a report by a Japanese news agency, a radiation monitoring robot, aptly named Monirobo, is the first non-human responder to go on-site following the partial meltdown at the Fukushima Daiichi nuclear power plant. The machine, which was developed by Japan's Nuclear Safety Technology Centre to operate at lethal radiation levels, reportedly began work Friday, enlisting a 3D camera, radiation detector, and heat and humidity sensors to monitor the extent of the damage. A second Monirobo, used to collect samples and detect flammable gases, is expected to join its red counterpart soon -- both robots are operated by remote control from distances up to one kilometer away. They join the US Air Force's Global Hawk drone in unmanned surveillance of the crisis.
