加速器の基本概念 V : 高周波加速の基礎

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1 .... V : KEK koji.takata@kek.jp

2 1 2 (1) 3 (2) ERL: Energy Recovery Linac LCLS: Linac Coherent Light Source LC : µ-µ Koji Takata (KEK) IV / 13

3 Energy Recovery Linac (1) KEK-PF-ERL KEK : 1.3 GHz (0.1 ps 3 ps) 3 GeV 3 GeV 3GeV ERL rf /2 path-length changer 6 (7) GeV Al 2 O 3 (00030) T=0.997 R 1 = m undulator Al 2 O 3 (00030) T=0.997 R 1 =0.92 T 1 = KeV X-rays XFEL-O in 2nd stage Koji Takata (KEK) IV / 13

4 ERL: Energy Recovery Linac (2) 3 GeV Koji Takata (KEK) IV / 13

5 SLAC LCLS (LINAC COHERENT LIGHT SOURCE) Undulator (SASE) SASE: Self Amplification of Spontaneous Emission SLAC Koji Takata (KEK) IV / 13

6 SLAC LCLS LCLS II Koji Takata (KEK) IV / 13

7 LC : e + e 1 TeV γ 4 Koji Takata (KEK) IV / 13

8 206.7 γ 4 1 TeV τ µ = 2.2 µs Proton Linacs Synchrotron Target Solenoid Li/Be Absorbers Linac Recirculation Collider Linac Linac cf. R. Palmer and R. Fernow: An Overview of Muon Colliders, Beam Dynamics Newsletter 55 (ICFA, Aug. 2011) p.22. Koji Takata (KEK) IV / 13

9 (1) cf. C. Joshi and T. Katsouleas : Physics Today, June 2003, p GeV Koji Takata (KEK) IV / 13

10 (2) cf. C. Joshi and T. Katsouleas : Physics Today, June 2003, p.47. Koji Takata (KEK) IV / 13

11 10 17 M. S. Livingston & J. P. Blewett: Particle Accelerators, p.6, MacGraw Hill, Accelerator Energy (ev) PeV 1TeV 1GeV Collider (Equivalent Energy) Proton Synchrotron Electron Linac Electron Synchrotron Synchro-cyclotron Proton Linac 1MeV Electrostatic Accelerator Betatron Cyclotron DC Generator : GeV (2000, CERN LEP) : 2 7 TeV (2010, CERN LHC) ILC (International e + e Linear Collider) : GeV? (2030?) Koji Takata (KEK) IV / 13

12 (1) Segrè, E. : From X-rays to Quarks (W. H. Freeman and Company, 1980). Historical introduction to the evolution of high energy physics and accelerator science Chao, A. W. and Tigner, M. (ed.) : Handbook of Accelerator Physics and Engineering (World Scientific, 1999). Compact encyclopedia of accelerator science and technology Edwards, D. A. and Syphers, M. J. : An Introduction to the Physics of High Energy Accelerators (Wiley, 1993). Concise text book on accelerator physics Wiedemann, H. : Particle Accelerator Physics I, II (Springer, 1999). Text book on accelerator physics Courant, E. D. and Snyder, H. S.: Annals of Physics, 3 (1958) p.1. A classical paper on the theory of the strong focusing Koji Takata (KEK) IV / 13

13 (2) Schwinger, J. : Physical Review, 75 (1949) p A classical paper on the theory of the synchrotron radiation Gilmour, A. S. : Microwave Tubes (Artech House, 1986). Text book on the electron tube technology London, F. : Superfluids, vol. 1 (Dover 1961). Treatise on Superconductivity and London Equations Padamsee, H., Knobloch, J. and Hays, T. : RF Superconductivity for Accelerators (John Wiley & Sons, 1998). Text book on RF superconductivity and its application to high energy accelerators!!!! OHO!!!! ( ( Koji Takata (KEK) IV / 13

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