大学共同利用機関法人 高エネルギー加速器研究機構

Formation of a working group for the foundation of an institute for nuclear study.

The Institute of Nuclear Study (INS) was established.

Sep：FF cyclotron was completed.

May：FM cyclotron was completed.

Jun：The first experiment with the FF cyclotron took place.

Oct：The first experiment with the FM cyclotron took place.

Dec：The Electron Synchrotron (ES) accelerated an electron beam to 750 MeV.

Apr：The first experiment with the ES took place.

Apr：Formation of a working group for the foundation of a new research institute for elementary particle physics.

Mar：The ES produced a 1.3 GeV beam.

Apr：National Laboratory for High Energy Physics (KEK) was established.

Mar：The proton synchrotron (PS) produced an 8 GeV beam as designed.

Dec：The PS achieved 12 GeV.

May：The first PS experiment took place.

Dec：Experiments with the SF cyclotron began.

The Booster Synchrotron Utilization Facility and a Photon Factory (PF) were founded.

The Meson Science Facility was established.

Jul：Experiments in the Booster Synchrotron Utilization Facility began.

Mar：The PF succeeded in storing a 2.5 GeV electron beam.

Jun：PF Experiments began.

Jul：The TRISTAN Accumulation Ring (AR) accelerated an electron beam to 6.5 GeV.

Oct：The AR accelerated a positron beam to 5 GeV.

Nov：The TRISTAN Main Ring (MR) accelerated both electron and positron beams to 25.5 GeV.

May：TRISTAN experiments began.

Apr：The Meson Science Facility was reorganized as a Laboratory (MSL).

Nov：The MR energy was upgraded to 30 GeV with the help of superconducting accelerating cavities.

Sep：First electron cooling by TARNII.

Mar：Isotope Separator On-Line (ISOL) was completed.

Jun：KEKB B-factory construction began.

Dec：TRISTAN experiments finished.

The High Energy Accelerator Research Organization was established.

First beam storage at KEKB (KEK B-factory) ring.

The Department of Particle and Nuclear Science was founded in the Graduate University for Advanced Studies.

The Long-baseline Neutrino Oscillation experiment (K2K) began.

The Belle experiment at the KEK B-factory began operation.

Tanashi Branch closed

Construction of High Intensity Proton Accelerators (J-PARC) started

Became the Inter-University Research Institute Corporation High Energy Accelerator Research Organization.

K2K experiment ended

Tokai Campus was opened.

Experiments at PS ended.

J-PARC Center was established.

Experiments at BSF ended.

181MeV proton beam at J-PARC Linac

3 GeV proton beam at J-PARC Rapid Cycling Synchrotron (RCS)

Prof. Makoto Kobayashi, former director of IPNS, won the 2008 Nobel Prize in Physics.

J-PARC construction was completed.

The Belle experiment ended

Construction of the SuperKEKB started

Phase 1 operation of the SuperKEKB started