Research Reactor Safety


  • NAKAJIMA, Kene-mail: nakajima<atmark>

Associate Professors

  • ISHI, Yoshihiro, e-mail: ishi<atmark>
  • TAKAHASHI, Toshiharue-mail: takahasi<atmark>
  • YAMAMOTO, Toshihiro, e-mail: tyama<atmark>
  • HORI, Jun-ichi, e-mail: hori<atmark>

Assistant Professors

  • UESUGI, Tomonori, e-mail: touesugi<atmark>
  • KURIYAMA, Yasutoshi, e-mail: kuriyama<atmark>
  • SANO, Tadafumi, e-mail: t-sano<atmark>

* replace <atmark> with

The Kyoto University Research Reactor (KUR) is a light water moderated, tank-type nuclear reactor, to utilize for general nuclear researchers cooperated by all Japanese university researchers. It is used as a strong neutron source, which is applicable for a broad range of research fields. Besides the KUR, a 46 MeV electron linear accelerator (LINAC) is used as a pulsed neutron source. Also, a new type of Fixed Field Alternating Gradient (FFAG) proton accelerator which has successfully demonstrated the world first accelerator driven system (ADS) at this institute is under development for increasing the capability and availability for many applications.
Using these three facilities, we are conducting the following research works:

1)Reactor physics and criticality safety
Experimental research of reactor physics and criticality safety are conducted by the KUR and critical assembly. In addition, improvements of numerical methods for reactor physics and theoretical research of next generation reactor are also conducted.
2) Measurement of nuclear reaction data (nuclear cross section)
The nuclear cross sections of minor actinides and long-lived fission products are measured using the LINAC or the KUR, which are basic and important data for the researchers on nuclear reactors and nuclear transmutation.
3) Development of Non-destructive Methods Adopted for Integrity Test for next generation nuclear fuels
Development of non-destructive method for next generation nuclear fuels using a pulsed neutron source is conducted. Researchers can identify and quantify target nuclides in the nuclear fuels and observe temperature distribution in the nuclear fuels.
4)Research and development of high-power THz synchrotron radiation source
Development of THz synchrotron source using the LINAC as the general-purpose quantum beam generation equipment is conducted.
5)Research and development of FFAG accelerator and applications
The accelerator based on FFAG principle has a unique feature to utilize non-linear electric and magnetic fields efficiently. The interesting subjects in FFAG accelerator are non-linear beam dynamics and ionization beam cooling

herenkov light at KUR core
The proton FFAG accelerator complex which has demonstrated the world first ADS experiment at KURRI. The accelerator consists of three FFAG rings (injector, booster and main ring) and accelerates protons up to 150 MeV.