Welcome to JLC FFIR Subgroup Home Page

Japanese version of the JLC FFIR Subgroup Home Page is here .

What's New? | Introducton | Getting Started | Calendar | Library | FFIR issues | Soken-dai: Summer School

What's New

• February 1, 2000 abstract("Beams and Detectors") for JPS-JLC symposium is added in Report-japanese
• July 27, 1999 Some transparencies of ISG4-WG6 are available in ISG-WG6 reports.
• July 27, 1999 ABEL is updated in "useful program".
• July 7, 1999 memo of JLC-structure meeting is added in library.
• Jan.13, 1999Transparencies of Maruyama's talk(Beam related backgrounds at NLC and JLC) is added in "Transparencies Used in FFIR-related Meetings".
• Jan.13, 1999Transparencies of Tauchi's talk (Detector Overview, presented at the 1st ACFA workshop on physics/detector at the linear collider) is added in "Transparencies Used in FFIR-related Meetings".
• Nov. 9, 1998A list of FFIR issues (HTML file) is prepared. The file is updated daily.
• Nov. 9, 1998 List of papers was updated to include a proceedings and transparencies of a talk on "Physics Plan at JLC" presented at Hadron Structure'98, September 1998, Slovakia.
• July 22, 1998 ISG-WG6 reports was added in the Library.
• May.28, 1997 Chapter 14 of JLC Design Report was added in the Lists of Papers.
• Feb.20, 1997 Links to the other home pages was added, where TRC(Technical Review Committee) home page can be found.
• Feb.4, 1997 List of papers was updated to include HTML files.
• Apr.26, 1996 Lecture notes was updated to add two lecture notes of "Physics at Linear Colliders" and "History of High Energy Physics" by T.Tauchi.
• Apr.26, 1996 List of papers was updated to add a proceedings of LCWS95, that is "Experimentation at e+e- Linear Collider" by T.Tauchi.
• April, 1996 CAIN20 was added to "available program".
• Dec. 4, 1995 The final version of TRC-WG6 report is here.
• Nov. 16, 1995 publication list is updated to add one paper on "scaling of luminosity on RF frequency" by K.Oide.
• Oct. 9, 1995 List of reports written in Japanese is updated to add a lecture note of "IR issues(around detector)" written by T.Tauchi.
• June 2, 1995 List of reports written in Japanese is updated to add a lecture note of "Introduction to beam dynamics" written by K.Oide.
• May 24, 1995 available computer program list is added to the Library, where ABEL(Analysis of Beam-beam Effects in Linear colliders) can be transfered by ftp or as a html document.
• May 8, 1995 publication list is updated to add two papers on beam-beam interactions.
• Apr. 7, 1995 New mailing list of jlcffir@jlcux1.kek.jp is available and publication list is updated to include minijets. Now you can send your message to tauchi@jlcux1.kek.jp.
• Mar. 23, 1995 The Japanese JLC FFIR subgroup home page is now available.
• Mar. 20, 1995 Reports written in japanese are added in Library.
• Mar. 18, 1995 The JLC FFIR subgroup home page is updated.

Introduction

• Keisuke Fujii KEK fujiik@jlcux1.kek.jp
• Setsuya Kawabata KEK kawabata@minami.kek.jp
• Takayuki Matsui KEK matsui@kekvax.kek.jp
• Akiya Miyamoto KEK miyamoto@kekux1.kek.jp
• Yoshihito Namito KEK namito@kekvax.kek.jp
• Tsunehiko Omori KEK omori@kekvax.kek.jp
• Toshiaki Tauchi KEK tauchi@jlcux1.kek.jp
• Shunichi Kanda Hawaii univ. skanda@kekvax.kek.jp
• Katsunobu Oide KEK oide@kekvax.kek.jp
• Noboru Yamamoto KEK yamamoto@kekvax.kek.jp
• Hiroshi Yamaoka KEK hiroshi.yamaoka@kek.jp
• Kaoru Yokoya KEK yokoya@kekvax.kek.jp

The FFIR subgroup is unique compared to the other groups since it has members from experimentalists and accerelator physicists. This place is also "interaction region" colliding experiment and accerelator. The major issues are backgrounds with high luminosity, which have to be compromized each other. The most significant result is a very flat beam comprizing multiple bunches at Interaction Point(IP), where a typical aspect ratio of transverse beam profile and a number of bunches are 85 and 72,respectively, for a luminosity of 1 x 10^34/cm^2/s at Ecm=500GeV (JLC-I). This group investigates these issues in order to realize experimental requirements with a realistic accerelator.
• Backgrounds
• Beam-beam effect
• Beam profile monitor
• Final Focus System:optics and non-linear collimation
• IR design
• future options

Getting Started

Please see also "Reports written in Japanese"(Library) which have introductory reports for Japanese.

• jlcffir@jlcux1.kek.jp : mail within FFIR subgroup for activities and announcements

FFIR Subgroup Calendar

• November 15-19, INSTR99 7th International Conference on Instrumentation for Colliding Beam Physics, Hamamatsu, November 15-19, 1999
• November 4-6, ACFA-LC workshop The 2nd ACFA workshop on physics and detectors at linear collider will be held at Seoul National University in November 4-6.
• October 21-26, LC99 The VIII INTERNATIONAL WORKSHOP ON LINEAR COLLIDERS will be held at the Frascati National Laboratories of INFN, on October 21-26, 1999.
• October 16-19, ECFA/DESY workshop the fifth workshop in the 2nd ECFA/DESY Study on Physics and Detectors for a Linear Electron-Positron Collider is going to be held at Obernai (near Strasbourg), France.
• October 17, 13:30-, 1995 FFIR meeting at TRISTAN control building. K.Oide will review a ground motion measurement and alignment tolerance etc. .
• October 18, 10:30-, 1995 ATF-alignment meeting at TRISTAN control building. Y.Takeuchi will review a present status of ATF-alignemnt work.

Library

• Reports
• List of Papers (PS,HTML)
• List of Reports written in Japanese
• Minutes of JLC-structure meetings
• Minutes of FFIR meetings
• Transparencies Used in FFIR-related Meetings
• Figures and Pictures for Transparencies
• Tutorials, Texts, Manuals, etc.
• Available computer programs
• Reports from WG6 (FFIR, Beam delivery system) group in ISG.

Links to the other home page

• Linear Collider Project Committee at KEK
• TRC home page

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