Experimentation Building for Backend Technology Development
Analysis of radioactive waste
◎ Purpose of the facility
The facility was established to analyze samples of low-level radioactive waste generated in the JAEA for their disposal.
◎ Completion year of construction
|1971||The facility was constructed as an attached facility “Dump condenser building” of the Japan Power Demonstration Reactor(JPDR).|
|1996||The name of the facility was changed into "Experimentation Building for Backend Technology Development" due to the change of its purpose after the decommissioning of the JPDR.|
◎ Features of the facility
The facility is granted licenses to use nuclear fuel materials and radioisotopes.
Hoods and various measuring instruments are installed in the facility for radioactivity measurements of alpha-, beta-, and gamma-rays emitting radionuclides and the chemical analysis.
The facility was designed for the usage of nuclear fuel materials and radioisotopes include the following:
|Multiple gamma-ray detection instrument||1 unit|
|Ge semiconductor detector （gamma-rays detector）||3 units|
|Beta-ray spectrometer （pico-beta）||1 unit|
|Liquid scintillation counter （Beta-rays detector）||2 units|
|Gas-flow counter （Alpha/Beta-rays detector）||2 units|
|Si semiconductor detector （Alpha-rays detector）||12 units|
|Inductively-Coupled Plasma Mass Spectrometer（ICP-MS）||2 units|
|Inductively Coupled Plasma-Atomic Emission Spectrometry （ICP-AES）||1 unit|
◎ R&D activities
In order to establish the rational radioactivity concentration evaluation methods for low-level radioactive wastes which are generated from research facilities , we are developing simple and rapid analytical methods of radionuclides in the wastes, and analyzing various waste samples and preparing radioactivity data base.
We analyze various samples collected in the site of Fukushima Daiichi Nuclear Power Plant . The obtained data can contribute to the establishment of treatment and disposal methods for various radioactive wastes generated from its accident on March 11, 2011.