Nuclear Reactor/Spent Fuel Cask

Nuclear Reactor/Spent Fuel Cask

iStock_000013003946XXX_MEDNuclear Power Plant Security

Together with Toshiba Corporation and Los Alamos National Laboratory (LANL), Decision Sciences has supported the restoration efforts of the Fukushima Daiichi Nuclear Power Plant site by providing multiple versions of its revolutionary muon tracking detectors. Decision Science designed, manufactured and delivered detector and tube arrays for Toshiba’s work at the Daiichi power plant building. The deployed detector will be part of Toshiba’s overall effort at Fukushima to determine the location and condition of the nuclear fuel inside the reactor buildings.

The information provided by the detectors will assist Toshiba in developing a safe and effective remediation plan. This application assists the restoration project by detecting and identifying nuclear material while securing a safe working environment for personnel. Tokyo Electric Power Company (TEPCO) estimates that images such as those created by Muon Tomography (MT) can shorten Fukushima restoration efforts by 10 years.

Spent Fuel Storage Casks

According to the International Atomic Energy Agency (IAEA) safeguards, a large amount of plutonium is contained in spent fuel assemblies stored in fuel casks worldwide. These assemblies are practically inaccessible for inspection purposes since reopening a cask would require special facilities and is costly. To verify the number of assemblies in the cask, IAEA must use cost effective and reliable containment and surveillance instrumentation. To find a better method to confirm the number of assemblies in a cask is extremely important to the IAEA.

Depiction of detection system for Fukushima restoration.

Depiction of detection system for Fukushima restoration.

 

 

 

 

 

 

Fuel storage casks (Photo courtesy of Nuclear Regulatory Commission.)

Fuel storage casks (Photo courtesy of Nuclear Regulatory Commission.)