| 1954 |
|
Formation of a working group for the foundation of an institute for nuclear study. |
| 1955 |
|
The Institute of Nuclear Study (INS) was established. |
| 1957 |
Sep |
FF cyclotron was completed. |
| 1958 |
May
Jun |
FM cyclotron was completed.
The first experiment with the FF cyclotron started. |
| 1960 |
Oct |
The first experiment with the FM cyclotron started. |
| 1961 |
Dec |
An Electron Synchrotron (ES) succeeded in accelerating an electron beam up to 750 MeV. |
| 1963 |
Apr |
The first experiment with the ES started. |
| 1964 |
Apr |
Formation of a working group for the foundation of a new research institute for elementary particle physics. |
 |
| 1966 |
Mar |
The ES achieved a 1.3 GeV beam. |
| 1971 |
|
|
Apr |
National Laboratory for High Energy Physics (KEK) was established. |
| 1976 |
|
|
Mar |
A proton synchrotron (PS) produced an 8 GeV beam as designed. |
| |
Dec |
|
|
The PS achieved 12 GeV. |
| 1977 |
May |
|
|
The first PS experiment started. |
| |
|
Experiments with the SF cyclotron started. |
Dec |
|
| 1978 |
|
Meson Science Facility was established. |
|
A Booster Synchrotron Utilization Facility and a Photon Factory (PF) were founded. |
| 1980 |
|
|
Jul |
Experiments with Booster Synchrotron Utilization Facility started. |
| 1982 |
|
|
Mar |
The PF succeeded in storing a 2.5 GeV electron beam. |
| 1983 |
|
|
Jun |
PF Experiments started. |
| 1984 |
|
|
Jul |
The TRISTAN Accumulator Ring (AR) accelerated an electron beams up to 6.5 GeV. |
| 1985 |
|
|
Oct |
The AR accelerated a positron beam up to 5 GeV. |
| 1986 |
|
|
Nov |
The TRISTAN Main Ring (MR) succeeded in accelerating both electron and positron beam to 25.5 GeV. |
| 1987 |
|
|
May |
TRISTAN experiments started. |
| 1988 |
|
Meson Science Facility was reorganized as Laboratory(MSL) |
Nov |
The MR energy was upgraded to 30 GeV with the help of superconducting accelerating cavities. |
| 1989 |
Sep |
First electron cooling by TARNII |
|
Accelerator and Synchrotron Radiation Science departments were established in the Graduate University for Advanced Studies |
| 1993 |
Mar |
Isotope Separator On-Line (ISOL) was completed. |
|
|
| 1994 |
|
|
Jun |
The KEKB B-factory construction started. |
| 1995 |
|
|
Dec |
TRISTAN experiments finished. |
| 1997 |
|
High Energy Accelerator Research Organization was established. |
| 1998 |
|
First beam storage at KEKB (KEK B-factory) ring |
| 1999 |
Apr |
Department of Particle and Nuclear Science was founded in the Graduate University for Advanced Studies |
| |
May |
Long-baseline Neutrino Oscillation experiment (K2K) started |
| |
Jun |
Belle experiment at KEK B-factory began the operation |
| 2000 |
|
Tanashi Branch closed |
| 2001 |
|
Construction of High Intensity Proton Accelerators (J-PARC) started |
| 2004 |
Apr
Nov |
Became the Inter-University Research Institute Corporation High Energy Accelerator Research Organization.
K2K experiment ended |
| 2005 |
Apr
Dec |
Tokai Campus was opened.
Experiments at PS ended. |
| 2006 |
Feb
Mar
|
J-PARC Center was established.
Experiments at BSF ended. |
| 2007 |
Jan
Oct |
181MeV proton beam at J-PARC Linac.
3 Gev proton beam at J-PARC Rapid Cycling Synchrotron (RCS). |
| 2008 |
Oct |
Prof. Makoto Kobayashi, former director of IPNS won the 2008 Nobel Prize in Physics. |
| 2009 |
Mar |
J-PARC construction was completed. |
