934:(ILC): A future electron-positron linear collider consisting of superconducting cavities with a length of approximately 31 kilometers in length and two damping rings, for electrons and positrons, with a circumference of 6.7 kilometers. The electron and positron energy will be up to 500 GeV with an option to upgrade to 1 TeV. Nearly 300 laboratories and universities around the world are involved in the ILC: more than 700 people are working on the accelerator design, and another 900 people on detector development. The accelerator design work is coordinated by the Global Design Effort, and the physics and detector work by the World Wide Study.
282:(established in 1955), the National Laboratory for High Energy Physics (established in 1971), and the Meson Science Laboratory of the University of Tokyo (established in 1988). However, the reorganization was not a simple merge of the aforementioned laboratories. As such, KEK was not the only new institute created at that time, because not all of the work of the parent institutions fell under the umbrella of high energy physics; for example, the Center for Nuclear Study, the University of Tokyo, was concurrently established for low energy nuclear physics in a research partnership with
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782:(KEK-DA) is a renovation of the KEK 500 MeV booster proton synchrotron, which was shut down in 2006. The existing 40 MeV drift tube linac and rf cavities have been replaced by an electron cyclotron resonance (ECR) ion source embedded in a 200 kV high-voltage terminal and induction acceleration cells, respectively. A DA is, in principle, capable of accelerating any species of ion in all possible charge states.
32:
91:
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by means of increasing the beam current, focusing the beams at the interaction point and making the electromagnetic beam-beam interactions small. The target luminosity has been set to 8×10 cm s, about 60 times higher than the KEKB's original design value. SuperKEKB has adopted a nano-beam scheme. KEK
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in order to generate the nano scale positron beam. On
October, 2010 the Japanese government formally approved the SuperKEKB project, and in June 2010 an initial budget of 100 million dollars (¥100 = $ 1) for a Very Advanced Research Support Program was assigned for 2010-2012. The total budget is
927:
in the ERL through the beam experiments. The beam commissioning in cERL will be scheduled from 2013 with a 35 MeV electron beam. KEK has a plan that will build 5 GeV ERL, provides ultra-high brightness and ultra-short pulsed synchrotron light, after the cERL
981:
mainly, and these super computers have been shut down in order to introduce a next super computer in the future. Computing
Research Center also manages the other computer systems: KEKCC, B-factory Computer System and Synchrotron Light Computer System.
718:(ATF): A test accelerator is focused on generating a super low-emittance beam. This is one of the essential techniques for realizing a future electron-positron linear collider. The beam energy of electrons is 1.28 GeV in normal operation.
900:
about 315 million dollars (¥100 = $ 1) by the program. The upgrade will be completed, and the first collisions have been conducted in 2018. The highest luminosity will be achieved in 2021.
146:
198:. It was established in 1997. The term "KEK" is also used to refer to the laboratory itself, which employs approximately 695 employees. KEK's main function is to provide the
953:
KEK has computers which are fastest class in Japan, and
Computing Research Center in KEK manages the computer systems. The theoretical operation performance of SR16000, a
865:
Transposable Ring
Intersecting Storage Accelerator in Nippon (TRISTAN): An electron-positron collider had been operated from 1987 to 1995. The main purpose was detecting
869:. The electron and positron energy were 30 GeV. TRISTAN had three detectors: TOPAZ, VENUS and AMY. KEKB was built through the use of the tunnel of TRISTAN.
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and so on. Numerous experiments have been constructed at KEK by the internal and international collaborations that have made use of them.
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388:
799:): An accelerator complex to accelerate protons up to 12 GeV. PS had consisted primarily of a 750 keV pre-accelerator, a 40 MeV
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with the electron beam of 6.5 GeV. The circumferential length is about 377 m. This ring used to be operated as a booster
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also provides 2.5 GeV electrons for PF and 6.5 GeV electrons for PF-AR. The Linac has in recent years been upgraded for
715:
343:: The Transposable Ring Intersecting Storage Accelerator in Nippon (TRISTAN) Accumulation Ring (AR) accelerated an
1151:"A Report on the Ground at KEK: Electrons and Positrons Collide for the first time in the SuperKEKB Accelerator"
1054:
891:
1126:"2 March 2016 - KEK: First turns and successful storage of beams in the SuperKEKB electron and positron rings"
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465:: Became the Inter-University Research Institute Corporation High Energy Accelerator Research Organization.
1014:
492:
227:
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1102:
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408:
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KEK hosted the first web site in Japan on
September 30, 1992. The original web site can still be seen.
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experiments. The circumferential length is about 187 m. The energy of the electron beam is 2.5 GeV.
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for TRISTAN, electron-positron collider, and called TRISTAN Accumulation Ring (AR) originally.
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827:) experiment. PS achieved its design energy of 8 GeV in 1976. PS was shut down in 2007.
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Superconducting RF Test
Facility (STF): A test facility to build and operate a test
387:: Accelerator and Synchrotron Radiation Science departments were established in the
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1024:
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KEK was established in 1997 in a reorganization of the
Institute of Nuclear Study,
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Tokai Campus: 2-4 Shirane
Shirakata, Tokai-mura, Naka-gun, Ibaraki 319-1195, Japan
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Institute of
Particle and Nuclear Studies: Pedestal physics laboratory to study
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complex used to inject 8.0 GeV electrons and 3.5 GeV positrons to KEKB. The
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638:. The circumferential length is about 3.016 km. Large quantities of
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course students of the School of High Energy
Accelerator Science in the
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Applied Research Laboratory: Laboratory used to support research using
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Accelerator Laboratory: Laboratory to study, develop, build and manage
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417:: The High Energy Accelerator Research Organization was established.
293:: National Laboratory for High Energy Physics (KEK) was established.
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740:): A proton accelerator complex consisting primarily of a 600 MeV
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2018: First collisions of SuperKEKB beams inside Belle II detector
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882:: An electron-positron collider, consisting of a 7 GeV electron
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230:, emeritus professor at KEK, is known globally for his work on
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Ministry of Education, Culture, Sports, Science and Technology
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Tsukuba Campus: 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
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2016: First turns and successful storage of beams in the
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830:
Neutrino Beam Line: A beam line to drive neutrinos into
752:. J-PARC was built with a collaboration between KEK and
377:: The MR energy was upgraded to 30 GeV with the help of
156:
729:
cavities, as a prototype of the main linac systems for
1178:
Physical Review Special Topics: Accelerators and Beams
455:: Construction of High Intensity Proton Accelerators (
815:. PS also had provided the 12 GeV proton beam to a
475:: Tokai Campus was opened. Experiments at PS ended.
834:, which is about 250 km away from KEK, and a
667:Photon Factory Advanced Ring (PF-AR): An electron
165:The High Energy Accelerator Research Organization
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175:
923:(ERL). cERL will study the uncertainty of the
363:: The TRISTAN Main Ring (MR) accelerated both
169:
807:and a 12 GeV main ring. PS had been used for
1259:International Linear Collider Official Site
1170:
965:. The theoretical operation performance of
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736:Japan Proton Accelerator Research Complex (
630:. With two storage rings: a 7 GeV electron
561:Institute of Materials Structure Science:
98:
89:
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646:will be generated providing data for the
310:beam as designed. The PS achieved 12 GeV.
16:Japanese high-energy physics organization
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915:(cERL): A test accelerator for a future
842:had been conducted from 1999 to 2004. A
776:(ADS) and a range of other applications.
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609:
600:
582:Graduate University for Advanced Studies
565:laboratory to study material structures.
519:2017: Completed the 'rolling-in' of the
389:Graduate University for Advanced Studies
330:: The PF succeeded in storing a 2.5 GeV
576:Scientists in KEK conduct training for
1271:
1071:
1050:SLAC National Accelerator Laboratory
679:generates high intensity and pulsed
202:and other infrastructure needed for
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969:Solution, a super computer made by
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1236:First web site in Japan (Japanese)
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14:
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1299:Organizations established in 1997
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1171:T. Iwashita; et al. (2011).
190:laboratory in Japan, situated in
1225:Computing Research Center in KEK
30:
535:KEK has four main laboratories
530:
411:, JADE, TOPAZ, VENUS) finished.
177:Kō Enerugī Kasokuki Kenkyū Kikō
1229:
1218:
1207:
1164:
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1118:
1095:
1055:Brookhaven National Laboratory
819:beam line in KEK for a KEK to
45:format but may read better as
1:
1200:10.1103/PhysRevSTAB.14.071301
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1030:International Linear Collider
932:International Linear Collider
731:International Linear Collider
401:B-factory construction began.
1304:1997 establishments in Japan
1284:Research institutes in Japan
1015:Makoto Kobayashi (physicist)
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7:
1294:Physics research institutes
1279:Particle physics facilities
988:
858:) has been conducted using
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548:elementary particle physics
516:electron and positron rings
509:construction was completed.
320:Utilization Facility and a
234:, and was awarded the 2008
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10:
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324:Factory (PF) were founded.
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18:
1173:"KEK digital accelerator"
774:Accelerator-Driven System
716:Accelerator Test Facility
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1103:
917:synchrotron light source
904:will be conducted using
874:Running and future plans
423:: First beam storage at
78:High Energy Accelerator
1264:First Web Site in Japan
780:KEK digital accelerator
485:Center was established.
407:: TRISTAN experiments (
353:: The AR accelerated a
280:the University of Tokyo
54:converting this article
975:quantum chromodynamics
950:
696:
622:: A electron-positron
615:
497:Nobel Prize in Physics
381:accelerating cavities.
259:36.14861°N 140.07694°E
236:Nobel Prize in Physics
1214:ILC-Facts and figures
946:
921:Energy Recovery Linac
913:Energy Recovery Linac
886:and a 4 GeV positron
694:
634:and a 4 GeV positron
613:
601:Particle accelerators
570:particle accelerators
541:particle accelerators
427:(KEK B-factory) ring.
224:nuclear transmutation
200:particle accelerators
157:http://www.kek.jp/en/
80:Research Organization
1130:www.interactions.org
890:, to achieve higher
844:neutrino oscillation
836:neutrino oscillation
803:, a 500 MeV booster
435:Neutrino Oscillation
433:: The Long-baseline
306:(PS) produced an 8 G
19:For other uses, see
1191:2011PhRvS..14g1301I
1000:Belle II experiment
979:accelerator physics
925:accelerator physics
902:Belle II experiment
725:with high-gradient
700:KEK e+/e- Linac: A
648:Belle II experiment
521:Belle II experiment
264:36.14861; 140.07694
255: /
204:high-energy physics
85:
1107:(in Japanese). KEK
1005:KEKB (accelerator)
951:
793:Proton Synchrotron
756:, and is used for
702:linear accelerator
697:
675:experiments. This
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523:in Tsukuba, Japan.
371:beams to 25.5 GeV.
212:structural biology
196:Ibaraki prefecture
77:
56:, if appropriate.
895:will build a new
846:experiment named
838:experiment named
673:synchrotron light
662:synchrotron light
656:(PF): A electron
469:experiment ended.
220:computing science
162:
161:
138:Masanori Yamauchi
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75:
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1289:Tsukuba, Ibaraki
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1252:Official website
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1010:Belle experiment
832:Super-Kamiokande
813:particle physics
787:Shutdown complex
762:particle physics
493:Makoto Kobayashi
449:began operation.
443:Belle experiment
347:beam to 6.5 GeV.
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228:Makoto Kobayashi
208:material science
188:particle physics
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134:Director General
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83:高エネルギー加速器研究機構
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39:This article
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1155:. Retrieved
1145:
1134:. Retrieved
1132:. March 2016
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1109:. Retrieved
1097:
1086:. Retrieved
984:
952:
928:experiments.
897:damping ring
888:storage ring
884:storage ring
796:
792:
671:is used for
669:storage ring
660:is used for
658:storage ring
636:storage ring
632:storage ring
575:
556:astrophysics
534:
531:Organization
437:experiment (
277:
240:
232:CP-violation
183:
164:
163:
143:Affiliations
115:Headquarters
110:1 April 1997
63:
58:Editing help
40:
862:since 2009.
805:synchrotron
750:synchrotron
748:and 50 GeV
746:synchrotron
685:synchrotron
677:accelerator
318:Synchrotron
304:synchrotron
262: /
250:140°04′37″E
182:, known as
107:Established
66:August 2024
1273:Categories
1157:2018-05-29
1136:2016-08-10
1111:2016-08-12
1088:2016-08-12
1066:References
892:luminosity
744:, a 3 GeV
459:) started.
247:36°08′55″N
1082:"History"
995:SuperKEKB
967:Blue Gene
961:, is 46 T
948:Blue Gene
939:Computers
906:SuperKEKB
880:SuperKEKB
867:top quark
772:science,
768:science,
710:SuperKEKB
642:and anti-
620:SuperKEKB
514:SuperKEKB
218:science,
216:radiation
1040:Fermilab
989:See also
957:made by
911:Compact
817:neutrino
644:B-mesons
640:B-mesons
624:collider
588:Location
491:: Prof.
369:positron
365:electron
355:positron
345:electron
332:electron
1187:Bibcode
959:Hitachi
852:Kamioka
821:Kamioka
809:nuclear
770:neutron
445:at the
274:History
192:Tsukuba
153:Website
123:Ibaraki
119:Tsukuba
1020:J-PARC
919:named
860:J-PARC
738:J-PARC
733:(ILC).
507:J-PARC
483:J-PARC
457:J-PARC
322:Photon
301:proton
299:: The
41:is in
1104:各種データ
1084:. KEK
963:FLOPS
848:Tokai
801:linac
742:linac
723:linac
706:linac
681:X-ray
284:RIKEN
127:Japan
47:prose
1045:DESY
1035:CERN
811:and
766:muon
754:JAEA
628:KEKB
554:and
503:2009
489:2008
479:2006
473:2005
463:2004
453:2001
447:KEKB
431:1999
425:KEKB
421:1998
415:1997
405:1995
399:KEKB
395:1994
385:1989
375:1988
367:and
361:1986
351:1985
341:1984
335:beam
328:1982
314:1978
297:1976
291:1971
43:list
1195:doi
971:IBM
856:T2K
850:to
840:K2K
825:K2K
578:PhD
467:K2K
439:K2K
409:AMY
184:KEK
21:Kek
1275::
1193:.
1183:14
1181:.
1175:.
1128:.
1073:^
797:PS
764:,
760:,
584:.
550:,
505::
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397::
308:eV
286:.
238:.
222:,
214:,
210:,
206:,
194:,
174:,
125:,
121:,
1203:.
1197::
1189::
1160:.
1139:.
1114:.
1091:.
908:.
854:(
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650:.
572:.
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543:.
499:.
391:.
337:.
180:)
168:(
68:)
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50:.
23:.
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