J
Junji Urakawa
Researcher at KEK
Publications - 264
Citations - 2477
Junji Urakawa is an academic researcher from KEK. The author has contributed to research in topics: Laser & Compton scattering. The author has an hindex of 21, co-authored 258 publications receiving 2261 citations. Previous affiliations of Junji Urakawa include Graduate University for Advanced Studies & Kharkov Institute of Physics and Technology.
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The International Large Detector: Letter of Intent
T. Abe,S. Schuwalow,M. Yamauchi,Joern Schaffran,Hirokazu Ikeda,Wenbin Qian,Wolfgang Waltenberger,Zuotang Liang,Andrea Brogna,Marcel Merk,Hongjoo Kim,Klaus Dehmelt,Tomohiko Tanabe,M. Barbi,Philipp Roloff,Keisuke Fujii,Tamaki Yoshioka,Alan J. Campbell,Uwe Renz,H. Nakazawa,E. Delagnes,Manas Maity,Ed Norbeck,Giulio Pellegrini,C.Mikael U. Berggren,Sandra Christen,R. Rossmanith,Elena Ginina,U. Schneekloth,Michael Kobel,Shinhong Kim,D. Moya,Takeo Kawasaki,Didier Imbault,Yongzhao Zhou,Angeles Faus-Golfe,Judita Mamuzic,T. Yoshida,Xavier Vilasis-Cardona,Tatsiana Klimkovich,Evgueny I. Tarkovsky,Marcos Fernandez Garcia,Stefan Roth,Kazutoshi Ito,A. Gellrich,Satoshi Mihara,Otmar Biebel,Stefano Moretti,Burak Bilki,Vaclav Vrba,Björn Lundberg,M. Danilov,Marko Dragicevic,Stefan Tapprogge,Xun Chen,Paolo Mereu,Jean-Charles Vanel,Quan Wang,F. F. Jing,Dirk Krucker,Khaled Belkadhi,Christian Grefe,Christophe De La Taille,Csaba Hajdu,Johannes Blümlein,Jan Scheirich,M. S. Dixit,L. Weuste,Kiyotomo Kawagoe,David Ward,Joel Bouvier,Nobuchika Okada,Cheng Guang Zhu,Adrian Vogel,Yoji Hasegawa,Helmut Eberl,Wolfram Dietrich Zeuner,J. N. Butler,Imad Baptiste Laktineh,K. Kotera,Masaki Asano,Jean-Pierre Martin,Hui Li,Matthieu Jore,Shaomin Chen,Andre Sailer,K. Elsener,R. Dollan,Lars Eklund,I. Valin,Marcel Vos,Isamu Nakamura,D. Karlen,Dorte David,O. Miller,Fabian Moser,H. Kuroiwa,V. Morgunov,Wolfgang Ehrenfeld,H. Henschel,L. Musa,Eduard Boos,Andreas Imhof,K. Itagaki,Masatoshi Saito,M. Piccolo,Pierre Lutz,U. Koetz,K. Seidel,J. D. Burger,Yowichi Fujita,Wataru Ootani,G. W. Wilson,Jan Engels,Hiroaki Ono,Chunxu Yu,Harry van der Graaf,Michael Campbell,Yusuke Suetsugu,Mickael Frotin,Qing He,Iftach Sadeh,Val O'Shea,Ronald Settles,B. Lutz,Dhellot Marc,Peter Speckmayer,M. Merkin,Wolfgang Kiesenhofer,I. Bozovic-Jelisavcic,E.G. Popova,Moritz Beckmann,Roberval Walsh,Alain Bellerive,J.P. Balbuena,Hiroshi Yamaguchi,Bo Liu,H. Matsunaga,P. Luzniak,M. Valentan,Alexei Galkin,Christophe Vescovi,Marek Idzik,Mary-Cruz Fouz,Alexei Raspereza,Takashi Mori,Kenichi Nakashima,Eun-Joo Kim,Els Koffeman,Christophe Evrard,O. Dadoun,Yoshinari Kondou,H. Stoeck,I. Polak,Lodovico Ratti,Yang Gao,Hiroshi Sendai,Danuta Kisielewska,Joel Goldstein,Kirsten Kschioneck,Toshiaki Tauchi,J. Cvach,Amparo Lopez Virto,Yoshio Kamiya,Ziping Zhang,Valerio Re,Liyuan Han,J. David,Richard Stromhagen,A. Frey,H. J. Schreiber,Hiroshi Yamaoka,Y. Sato,Frank Gaede,B. Gaur,Shoichi Shimazaki,M. Postranecky,V. Drugakov,J. Baudot,Ralf Hertenberger,Y. Kato,Mogens Dam,B. Pawlik,W. G. Ma,Akihiro Maki,Kazuya Tauchi,Jiawei Zhao,Tim Greenshaw,Supratik Mukhopadhyay,Zhenwei Yang,James Ballin,Takashi Kohriki,Gilles Claus,Petr Sicho,Rick J. Van Kooten,H. Mathez,Chiara Cappellini,Klaus Mönig,Lee Sawyer,V. Saveliev,Muriel Vander Donckt,R. Yonamine,M. A. Thomson,Markus Schumacher,Hyunok Kim,A. Moll,Nigel Watson,Ivan Marchesini,J. Timmermans,Intae Yu,Xuan Zhang,J. Ciborowski,Hongfang Chen,Andrei Dorokhov,E. Teodorescu,P. H. Hansen,Andre Sopczak,G.A. Blair,Paulo Mora De Freitas,L. Morin,Xianglei Zhu,F. Suekane,Hanna Kluge,Zizong Xu,Zhiqing Zhang,Christian Zeitnitz,D. Käfer,Marc Imhoff,Kieffer Robert,Bart Hommels,Kaloyan Krastev,Hideo Itoh,Akira Yamaguchi,Frédéric Morel,Kristian Harder,Valery Galkin,Ingrid-Maria Gregor,R. Sefri,Miguel Ullan,Richard Bates,Francois Corriveau,Byunggu Cheon,Sandip Sarkar,Claus Kleinwort,W. S. Hou,Thorsten Lux,Stanislav Nemecek,Yanxi Zhang,Yusuke Kamai,J. Fleury,N. Meyners,C. Clerc,Ting Li,Gisele Martin-Chassard,Evert Stenlund,Patrick Cornebise,G. Eigen,Martin Grunewald,Lennart Österman,Sabine Riemann,Kazutaka Sumisawa,Xingtao Huang,Daniel Jeans,L. Zawiejski,Peter Buchholz,Koji Yanagida,Wilfrid da Silva,H. Takeda,Tsunehiko Omori,Hideyo Kodama,S. J. Aplin,Meng Wang,J. Yang,Jean-Charles Fontaine,Erika Garutti,Takeo Higuchi,Ian Brock,Alexei Buzulutskov,K. Buesser,Xiaoliang Wang,S. W. Nam,Jan Kuhlmann,Ulf Mjörnmark,Michele Faucci Giannelli,Takeshi Matsuda,Carlos Marias,Diego Gamba,Dirk Zerwas,Kirk T. McDonald,W. Lohmann,Hwanbae Park,Il Hung Park,Shohei Nishida,Dezso Horvath,Hans-Gunther Moser,L. Dumitru,Eric Lagorio,Angel Dieguez,Auke Colijn,Nicolo De Groot,Robert Kieffer,Toshinori Ikuno,Jordi Riera-Babures,C. Soldner,A. Schälicke,Thanh Hung Pham,Chris Damerell,Junji Urakawa,Minori Watanabe,Norbert Wermes,Jan Smolik,Hubert Gerwig,Risto Orava,Choong Sun Kim,M. Bergholz,A. Calcaterra,Halina Abramowicz,Francois Richard,Zbynek Drasal,Nikolai Shumeiko,Tatjana Jovin,Jean Francois Huppert,Philip Bechtle,Joachim Mnich,Go Iwai,Alexey Lyapin,Yulan Li,Liang Zhong,D. Stöckinger,Markus Wobisch,Wolfgang Lange,Alexander Petrov,Richard Jaramillo Echeverria,Hans-Christian Schultz-Coulon,Manuel Lozano,H. Videau,M. Ohlerich,Satoru Yamashita,Masanori Kawai,Peter Wienemann,Peter Schade,Boris Dolgoshein,Fatah-Ellah Rarbi,D. Grondin,Akira Sugiyama,C. Niebuhr,Mila Pandurovic,Celeste Fleta,A. Kaplan,J. Sekaric,Matthew Wing,Albert De Roeck,Rei Sasaki,Alberto Ruiz-Jimeno,Toru Tsuboyama,Philippe Luc Yves Gris,H. Przysiezniak,Marc Anduze,David Attié,Arnulf Quadt,Yuji Yamazaki,Lukasz Maczewski,Sameen Ahmed Khan,Kohei Yoshida,Enrique Calvo Alamillo,Fabian Zomer,C. Carloganu,Sebastian Frank,Manqi Ruan,Christopher Parkes,F. Gournaris,David Decotigny,Anders Nils Erik Oskarsson,Dieter Schlatter,L. Gallin-Martel,G. Bonvicini,Tohru Takahashi,Malgorzata Worek,Tord Riemann,Benno List,F. Lehner,Victoria Jane Martin,P. Colas,Yasuhiro Sugimoto,Tohru Takeshita,Lluis Garrido Beltran,Toshiya Sanami,Haijun Yang,Olga Igonkina,Zdenek Dolezal,Leif J. Jönsson,Kazuo Nakayoshi,C. I. Ciobanu,Carsten Hensel,Frank Filthaut,Gérald Grenier,Tony Doyle,M. Orlandea,Jason Abernathy,P. Lebrun,V. Bartsch,Satoru Uozumi,Dhiman Chakraborty,Yasuhiro Ide,Gui Nyun Kim,H. Albrecht,Christoph Bartels,Alexandre Charpy,Sudeb Bhattacharya,P. Chang,Yorgos Voutsinas,Jiwoo Nam,Bernward Krause,Klaus Kurt Desch,K. Ueno,N. Meyer,Philippe Repain,Marcus Niechciol,Jenny List,B. C. Choudhary,J. Zalesak,Isa Heinze,Winfried Mitaroff,Nuno Filipe Castro,Valery I. Telnov,Juan Fuster,X. Prudent,Ladislav Andricek,Wojciech Wierba,M. Fleischer,Simonetta Gentile,L.I. Shechtman,Ge Jing,O. Nitoh,John Marshall,Igor Emeliantchik,Veronique Boisvert,Wim De Boer,Pablo Vazquez Regueiro,Yosuke Takubo,Jean-Yves Hostachy,Roger Barlow,M. Mudrinic,Mihai-Octavian Dima,A. Besson,A. Gallas,J.F. Genat,F. Kajino,Marc Winter,Bing Li,Ghislain Patrick,Dmitri Ossetski,Alexander Olchevski,G. Faber,Riccardo Fabbri,N. Katayama,Sijbrand J. de Jong,Imma Riu,D. Peterson,Ivor Fleck,M. Regler,Marek Adamus,K.Peter Schuler,Bernardo Adeva,M. Reinhard,Derek J. Attree,Andrea Gaddi,R. Ingbir,Hana Hlucha,Yukiko Ikemoto,Kazurayama Hironori,Per Osland,Frank Simon,Arno Straessner,John A. Wilson,Aura Rosca,Yasar Onel,Eckhard Elsen,Carmen Alabau Pons,Ivan Smiljanic,Makoto Kobayashi,Aurore Savoy-Navarro,Ivan Vila,J. C. Brient,Alexander Kaukher,Kezhu Song,Julien Giraud,Shunsuke Tozuka,N. Wattimena,Jose Repond,A. Himmi,Leonid Gladilin,Diana Linzmaier,Lea Hallermann,Thomas Bergauer,Nebojsa Smiljkovic,Ralf Diener,Yasuhiro Makida,Li Bo,Allen Caldwell,David Bailey,L. K. Gibbons,A.E. Bondar,Zhi Deng,K. Afanaciev,Juan Antonio Aguilar-Saavedra,V. Korbel,B. Foster,C. Padilla,A. Ishikawa,Dmitri Ryzhikov,F. Kircher,L. Raux,Renyou Zhang,Cornelius Martens,C. Combaret,Shiro Suzuki,Tomonori Kusano,F. L. Linde,Mitsuaki Nozaki,Raimund Ströhmer,E. Kielar,Min-Zu Wang,DongHee Kim,R. Schwierz,Antonio Pellegrino,Carmen Iglesias Escudero,C. Kiesling,Vishnu Zutshi,Daniel Dzahini,Atul Gurtu,Katsumasa Ikematsu,Baojun Zheng,Anthony Hartin,Craig Buttar,Vincent Boudry,Marcel Vreeswijk,Eiji Inoue,G. Grzelak,Rita de Masi,Stephan Haensel,Hitoshi Yamamoto,Peter Kvasnicka,Hiroki Kawahara,Aleksander Filip Zarnecki,Wolfgang Mader,Angela Isabela Lucaci-Timoce,Philippe Doublet,Toshinori Mori,Andriy Ushakov,Jochen Kaminski,Krzysztof Swientek,Deepak Kar,Stevan Jokic,Manfred Krammer,Volker Prahl,Marco Verzocchi,T. Lesiak,Q. Yue,Toshiyuki Iwamoto,Yi Wang,D. Bassignana,Giuseppe Giraudo,M. Hauschild,C. Colledani,Jesus Puerta-Pelayo,M. Tanaka,Christoph Rosemann,Takashi Matsushita,M. Titov,Giomataris Ioannis,Miho Nishiyama,Christian Helebrant,Yoshiji Yasu,Zeno Dixon Greenwood,Thorsten Krautscheid,C. Coca,Yuji Sudo,G. Doziere,Masaya Iwabuchi,Massimo Caccia,Tobias M. Haas,Yutaka Ushiroda,Gudrid Moortgat-Pick,Satoshi Tanaka,Paul de Jong,Matthew Warren,Stan Bentvelsen,R. Schmidt,N. Seguin-Moreau,F. Sefkow,Marina Chadeeva,Aharon Levy,Cunfeng Feng,David J. Miller,Celso Martinez Rivero,Guenter Eckerlin,Jin Min Yang,Nicola D'Ascenzo,Tadashi Nagamine,G. Musat,Jordi Duarte Campderros,Yu Ping Kuang,Oliver Schäfer,Günther Dissertori,Blanka Sobloher,Junpei Fujimoto,Sebastian Schmitt,Taikan Suehara,T. Sanuki,Antoine Mathieu,B. Olivier,Nick Lumb,Martin Harz,F. Dulucq,Vladimir Rusinov,Nicolas Fourches,O. Wendt,Xavier Llopart Cudie,Wenbiao Yan,Takashi Watanabe,Guilherme Lima,S. Caiazza,G. Raven,Juan J. Saborido,Kenichi Tanaka,Markus Ball,Stefania Xella,Ties Behnke,R. Cornat,Takahiro Fusayasu,Marc Besancon,Peter Kluit,Nils Feege,Guillaume Daubard,P. Ruzicka,J.Ritchie Patterson,Aidan Robson,Michal Marcisovsky,F. Kapusta,Jeannine Beck,Carlos Lacasta Llacer,Robert Volkenborn,J. Zacek,Alain Hervé,S. V. Morozov,Junping Tian,D. Hedin,Zhengguo Zhao,F. Gastaldi,R. Poeschl,Sabine Kraml,Ming Shao,Tomiyoshi Haruyama,Peter Kodys,Klaus Sinram,B. Bouquet,M. Bedjidian,Bruce Schumm,S. Callier,Georgios Mavromanolakis,Suyong Choi,Francisco Javier Gonzalez Sanchez,K. Oliwa,Hajrah Tabassam,Christine Hu-Guo,P. Niezurawski,Brian van Doren,S. Lu,Yoshio Arai,Janusz Rosiek,Takayuki Sakuma,A. Ignatenko,H. U. Martyn,Y. Onuki,Nayana Majumdar,Vincent Hedberg,Eiichi Nakano,Takeshi Murakami,Michal Czakon,Sachio Komamiya,Werner Bernreuther,Martin Killenberg,B. Bhuyan,Hirofumi Fujii,H. Miyata,L. Linssen,Gobinda Majumder,Takanori Hara,Akiya Miyamoto,Editha P. Jacosalem,Maria Elena Castro Carballo,Antonio Bulgheroni,Yoshimasa Ono,J. Ferencei,Yasuyuki Horii,K. Wichmann,Mahfoud Yamouni,Katsuo Tokushuku,Jik Lee,Christophe Royon,W. Daniluk,Eriko Kato +702 more
TL;DR: The International Large Detector (ILD) is a concept for a detector at the International Linear Collider, ILC as discussed by the authors, which will collide electrons and positrons at energies of initially 500 GeV, upgradeable to 1 TeV.
Journal ArticleDOI
Search for neutral particles in electron-beam-dump experiment.
A. Konaka,K. Imai,H. Kobayashi,Akira Masaike,Kozo Miyake,T. Nakamura,N Nagamine,Noboru Sasao,Atsushi Enomoto,Yasutaka Fukushima,Eiji Kikutani,Haruyo Koiso,Halina Matsumoto,K. Nakahara,Satoshi Ohsawa,Takashi Taniguchi,I. Sato,Junji Urakawa +17 more
TL;DR: In this article, an experiment to search for the production of neutral penetrating particles decaying into electron-positron pairs was performed with a 2.5-GeV electron beam.
Journal ArticleDOI
Efficient propagation of polarization from laser photons to positrons through compton scattering and electron-positron pair creation.
Tsunehiko Omori,Masafumi Fukuda,T. Hirose,Yoshimasa Kurihara,Ryunosuke Kuroda,Ryunosuke Kuroda,Masahiro Nomura,A. Ohashi,T. Okugi,Kazuyuki Sakaue,Tomonori Saito,Junji Urakawa,Masakazu Washio,I. Yamazaki +13 more
TL;DR: It is demonstrated for the first time the production of highly polarized short-pulse positrons with a finite energy spread in accordance with a new scheme that consists of two-quantum processes, such as inverse Compton scattering and electron-positron pair creation.
Journal ArticleDOI
Observation of the second harmonic in Thomson scattering from relativistic electrons.
Marcus Babzien,Ilan Ben-Zvi,Karl Kusche,I. V. Pavlishin,Igor Pogorelsky,D. P. Siddons,Vitaly Yakimenko,David B. Cline,F. Zhou,T. Hirose,Yoshio Kamiya,T. Kumita,Tsunehiko Omori,Junji Urakawa,Kaoru Yokoya +14 more
TL;DR: The present experiment characterized the second harmonic of Thomson x-ray scattering using the counterpropagation of a 60 MeV electron beam and a subterawatt CO2 laser beam to achieve elevated laser intensity.
Journal ArticleDOI
Performance of a high resolution cavity beam position monitor system
S. Walston,Stewart Boogert,C. Chung,P. Fitsos,J.C. Frisch,J. Gronberg,Hitoshi Hayano,Yosuke Honda,Yury Kolomensky,Alexey Lyapin,S. Malton,J. May,D. McCormick,Robert Meller,David Miller,Toyoko J. Orimoto,Toyoko J. Orimoto,Marc Ross,Marc Ross,M. Slater,Steve Smith,Tonee Smith,Nobuhiro Terunuma,M. A. Thomson,Junji Urakawa,V. Vogel,David Ward,Glen White +27 more
TL;DR: In this article, a triplet comprised of these BPMs was installed in the extraction line of the Accelerator Test Facility (ATF) at the High Energy Accelerator Research Organization (KEK) for testing with its ultra-low emittance beam.