Author: Seeman, J.T.
Paper Title Page
TUPZ041 Site Studies for the SuperB Collider and Synchrotron Radiation Facility Project 1900
 
  • S. Tomassini, M.E. Biagini, P. Raimondi, C. Sanelli
    INFN/LNF, Frascati (Roma), Italy
  • B. Bolzon
    CERN, Geneva, Switzerland
  • G. Deleglise, A. Jeremie
    IN2P3-LAPP, Annecy-le-Vieux, France
  • J.T. Seeman
    SLAC, Menlo Park, California, USA
  
  The Su­perB pro­ject aims at the con­struc­tion of a very high lu­mi­nos­i­ty (1036 cm-2 s−1) asym­met­ric elec­tron-positron col­lid­er. Due to its large beam cur­rent (~2 A) high en­er­gy (~7 GeV) and low ver­ti­cal emit­tance (less than 10-11 m) the fa­cil­i­ty looks very at­trac­tive as an x-ray syn­chrotron ra­di­a­tion source, and there­fore few beam lines are also fore­seen. Pos­si­ble lo­ca­tions are the cam­pus of the Uni­ver­si­ty of Rome Tor Ver­ga­ta or near an­oth­er Ital­ian INFN lab­o­ra­to­ry site. This paper pre­sents and de­scribes the sta­tus of the pre­lim­i­nary de­sign of the civil in­fras­truc­ture lay­out and re­lat­ed site is­sues.  
 
THPZ003 The SuperB Project: Accelerator Status and R&D 3684
 
  • M.E. Biagini, S. Bini, R. Boni, M. Boscolo, B. Buonomo, T. Demma, E. Di Pasquale, A. Drago, L.G. Foggetta, S. Guiducci, S.M. Liuzzo, G. Mazzitelli, L. Pellegrino, M.A. Preger, P. Raimondi, U. Rotundo, C. Sanelli, M. Serio, A. Stecchi, A. Stella, S. Tomassini, M. Zobov
    INFN/LNF, Frascati (Roma), Italy
  • M.A. Baylac, O. Bourrion, J.-M. De Conto, N. Monseu, C. Vescovi
    LPSC, Grenoble, France
  • K.J. Bertsche, A. Brachmann, Y. Cai, A. Chao, M.H. Donald, R.C. Field, A.S. Fisher, D. Kharakh, A. Krasnykh, K.C. Moffeit, Y. Nosochkov, A. Novokhatski, M.T.F. Pivi, J.T. Seeman, M.K. Sullivan, S.P. Weathersby, A.W. Weidemann, U. Wienands, W. Wittmer, G. Yocky
    SLAC, Menlo Park, California, USA
  • S. Bettoni
    PSI, Villigen, Switzerland
  • A.V. Bogomyagkov, I. Koop, E.B. Levichev, S.A. Nikitin, I.N. Okunev, P.A. Piminov, D.N. Shatilov, S.V. Sinyatkin, P. Vobly
    BINP SB RAS, Novosibirsk, Russia
  • B. Bolzon, M. Esposito
    CERN, Geneva, Switzerland
  • F. Bosi
    INFN-Pisa, Pisa, Italy
  • L. Brunetti, A. Jeremie
    IN2P3-LAPP, Annecy-le-Vieux, France
  • A. Chancé
    CEA, Gif-sur-Yvette, France
  • P. Fabbricatore, S. Farinon, R. Musenich
    INFN Genova, Genova, Italy
  • E. Paoloni
    University of Pisa and INFN, Pisa, Italy
  • C. Rimbault, A. Variola
    LAL, Orsay, France
  • Y. Zhang
    IHEP Beijing, Beijing, People's Republic of China
  
  The Su­perB col­lid­er pro­ject has been re­cent­ly ap­proved by the Ital­ian Gov­ern­ment as part of the Na­tion­al Re­search Plan. Su­perB is a high lu­mi­nos­i­ty (1036 cm-2 s-1) asym­met­ric e+e− col­lid­er at the Y(4S) en­er­gy. The de­sign is based on a “large Pi­win­s­ki angle and Crab Waist” scheme al­ready suc­cess­ful­ly test­ed at the DAΦNE Phi-Fac­to­ry in Fras­cati, Italy. The pro­ject com­bines the chal­lenges of high lu­mi­nos­i­ty col­lid­ers and state-of-the-art syn­chrotron light sources, with two beams (e+ at 6.7 and e- at 4.2 GeV) with ex­treme­ly low emit­tances and small beam sizes at the In­ter­ac­tion Point. As unique fea­tures, the elec­tron beam will be lon­gi­tu­di­nal­ly po­lar­ized at the IP and the rings will be able to ramp down to col­lide at the tau/charm en­er­gy thresh­old with one tenth the lu­mi­nos­i­ty. The rel­a­tive­ly low beam cur­rents (about 2 A) will allow for low run­ning (power) costs com­pared to sim­i­lar ma­chines. The in­ser­tion of beam lines for syn­chrotron ra­di­a­tion users is the lat­est fea­ture in­clud­ed in the de­sign. The lat­tice has been re­cent­ly mod­i­fied to ac­com­mo­date in­ser­tion de­vices for X-rays pro­duc­tion. A sta­tus of the pro­ject and a de­scrip­tion of R&D in progress will be pre­sent­ed.  
 
THPZ024 Updated Design of the Italian SuperB Factory Injection System 3738
 
  • S. Guiducci, M.E. Biagini, R. Boni, M.A. Preger, P. Raimondi
    INFN/LNF, Frascati (Roma), Italy
  • J. Brossard, O. Dadoun, P. Lepercq, C. Rimbault, A. Variola
    LAL, Orsay, France
  • A. Chancé
    CEA, Gif-sur-Yvette, France
  • J.T. Seeman
    SLAC, Menlo Park, California, USA
  
  The ultra high lu­mi­nos­i­ty B-fac­to­ry (Su­perB) pro­ject of INFN re­quires a high per­for­mance and re­li­able in­jec­tion sys­tem, pro­vid­ing elec­trons at 4 GeV and positrons at 7 GeV, to ful­fill the very tight re­quire­ments of the col­lid­er. Due to the short beam life­time, con­tin­u­ous in­jec­tion of elec­trons and positrons in both HER and LER rings is nec­es­sary to keep the av­er­age lu­mi­nos­i­ty at a high level. An up­dat­ed ver­sion of the in­jec­tion sys­tem, op­ti­mized at high­er rep­e­ti­tion fre­quen­cy is pre­sent­ed. This scheme in­cludes a po­lar­ized elec­tron gun, a positron pro­duc­tion scheme with elec­tron/positron con­ver­sion at low en­er­gy 0.6 GeV, and a 1 GeV damp­ing ring to re­duce the in­ject­ed emit­tance of the positron beam.