1. The study on development and maintain of the national radioactivity standards.

The detectors and instruments designated as the national standards are developed and maintained to carry out the calibration of secondary measurement standards based on measurement traceability of metrology law.

2. Neutron standard

We maintain and disseminate primary national standards of neutron emission rates from Cf-252 and Am-Be RI sources and mono-energetic neutron fluence generated with a Van de Graaff and a Cockcroft-Walton accelerator. We are participating in some international key comparisons held by CCRI or APMP.  Also emphasized is establishment of the quality system based on ISO17025

3. The study on advancement of radioactive standards

The detectors and instruments as the secondary standards are developed to establish advanced dissemination system of radioactive standards based on measurement traceability of Japan

To increase disseminated items and advance the standards, high sensitive radioactivity measurement systems are developed, and the absolute measurement of X-ray release rates and establishment of b-nuclides radioactivity standards are studied.

4. High-energy photon standard

We are preparing to establish a high-energy photon standard with an energy range from 2MeV to 20MeV that has not been well developed.  Developments of photon-generating techniques using Laser anti-Compton effects, and some related measuring and calibration techniques are of interest.

5. Advanced radiation standard

We are preparing to establish both an environmental radioactivity standard and neutron fluence standard with an energy range from 5 to 10MeV that has not been well disseminated.  Developments of neutron-generating techniques using accelerators, and some related measuring techniques are of interest.

6. Development of calibration technology using Internet

It is developed that the remote calibration technique for working standards using interactive video communication technology and remote control technology via Internet.