rpp2010-rev-hep-collider-params

rpp2010-rev-hep-collider-params - 26. High-energy collider...

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Unformatted text preview: 26. High-energy collider parameters 1 HIGH-ENERGY COLLIDER PARAMETERS: e + e- Colliders (I) Updated in early 2010 with numbers received from representatives of the colliders (contact J. Beringer, LBNL). For existing (future) colliders the latest achieved (design) values are given. Quantities are, where appropriate, r.m.s.; H and V indicate horizontal and vertical directions; s.c. stands for superconducting. Parameters for the defunct SPEAR, DORIS, PETRA, PEP, SLC, TRISTAN, and VEPP-2M colliders may be found in our 1996 edition (Phys. Rev. D54 , 1 July 1996, Part I). VEPP-2000 (Novosibirsk) VEPP-4M (Novosibirsk) BEPC (China) BEPC-II (China) DANE (Frascati) Physics start date 2008 1994 1989 2008 1999 Physics end date 2005 2013 Maximum beam energy (GeV) 1.0 6 2.2 1.89 (2.3 max) 0.700 Luminosity (10 30 cm 2 s 1 ) 100 20 12.6 at 1.843 GeV/beam 5 at 1.55 GeV/beam 330 450 (1000 achievable) Time between collisions ( s) 0.04 0.6 0.8 0.008 0.0027 Full crossing angle ( rad) 2 . 2 10 4 5 10 4 Energy spread (units 10 3 ) 0.64 1 0.58 at 2.2 GeV 0.52 0.40 Bunch length (cm) 4 5 5 1.3 low current: 1 high current: 2 Beam radius (10 6 m) 125 (round) H : 1000 V : 30 H : 890 V : 37 H : 380 V : 5 . 7 H : 800 V : 4 . 8 Free space at interaction point (m) 1 2 2.15 0.63 . 40 Luminosity lifetime (hr) continuous 2 712 1.5 0.3 Turn-around time (min) continuous 18 32 26 3 Injection energy (GeV) 0.21.0 1.8 1.55 1.89 on energy Transverse emittance (10 9 rad-m) H : 250 V : 250 H : 200 V : 20 H : 660 V : 28 H : 144 V : 2 . 2 H : 260 V : 0 . 52 , amplitude function at interaction point (m) H : 0 . 06 . 11 V : 0 . 06 . 10 H : 0 . 75 V : 0 . 05 H : 1 . 2 V : 0 . 05 H : 1 . V : 0 . 015 H : 0 . 25 V : 0 . 009 Beam-beam tune shift per crossing (units 10 4 ) H : 750 V : 750 500 350 200 250 RF frequency (MHz) 172 180 199.53 499.8 368 Particles per bunch (units 10 10 ) 16 15 20 at 2 GeV 11 at 1.55 GeV 3.6 e : 3.3 e + : 2.4 Bunches per ring per species 1 2 1 93 120 (incl. 10 bunch gap) Average beam current per species (mA) 150 80 40 at 2 GeV 22 at 1.55 GeV 580 e : 1800 e + : 1300 Circumference or length (km) 0.024 0.366 0.2404 0.23753 0.098 Interaction regions 2 1 2 1 1 Magnetic length of dipole (m) 1.2 2 1.6 Outer ring: 1.6 Inner ring: 1.41 1 Length of standard cell (m) 12 7.2 6.6 Outer ring: 6.6 Inner ring: 6.2 12 Phase advance per cell (deg) H : 738 V : 378 65 60 6090 non-standard cells 360 Dipoles in ring 8 78 40 + 4 weak 84 + 8 weak 8 Quadrupoles in ring 20 150 68 134+2 s.c. 48 Peak magnetic field (T) 2.4 0.6 0.903 at 2.8 GeV Outer ring: 0.677 Inner ring: 0.766 1.7 2 26. High-energy collider parameters HIGH-ENERGY COLLIDER PARAMETERS: e + e- Colliders (II) Updated in early 2010 with numbers received from representatives of the colliders (contact J. Beringer, LBNL). For existing (future) colliders the latest achieved (design) values are given. Quantities are, where appropriate, r.m.s.;the latest achieved (design) values are given....
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This note was uploaded on 06/07/2011 for the course PHYS 4132 taught by Professor Kutter during the Spring '11 term at University of Florida.

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rpp2010-rev-hep-collider-params - 26. High-energy collider...

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