Author: Gerigk, F.
Paper Title Page
THPFI056 Design Study for a Future LAGUNA-LBNO Long-baseline Neutrino Facility at CERN 3418
 
  • I. Efthymiopoulos, J. Alabau-Gonzalvo, A. Alekou, F. Antoniou, M. Benedikt, M. Calviani, A. Ferrari, R. Garoby, F. Gerigk, S.S. Gilardoni, B. Goddard, A. Kosmicki, C. Lazaridis, J.A. Osborne, Y. Papaphilippou, A.S. Parfenova, E.N. Shaposhnikova, R. Steerenberg, P. Velten, H. Vincke
    CERN, Geneva, Switzerland
 
  A de­sign study for a long base­line neu­trino os­cil­la­tion ex­per­i­ment (LBNO) with a new con­ven­tional neu­trino beam­line fa­cil­ity (CN2PY) at CERN was ini­ti­ated in Sep­tem­ber 2011, sup­ported by EU/FP7 funds. The beam will be aimed at a next gen­er­a­tion deep-un­der­ground neu­trino ob­ser­va­tory lo­cated at the Py­hasalmi (Fin­land) mine at a dis­tance of 2300 km. In an ini­tial phase the CN2PY fa­cil­ity will use a 400 GeV beam ex­tracted from SPS up to a max­i­mum power of 750 kW, and in a sec­ond phase a 2 MW beam of about 50 GeV pro­duced by a new High-Power Pro­ton Syn­chro­tron ac­cel­er­a­tor using the LP-SPL as in­jec­tor also under de­sign. The paper will focus on the de­sign chal­lenges of this MW-class fa­cil­ity and on the op­ti­miza­tion stud­ies of the sec­ondary beam el­e­ments (tar­get and horns) to pro­duce a neu­trino beam spec­trum that matches best the ex­per­i­men­tal re­quire­ments for neu­trino fla­vor os­cil­la­tions and CP-vi­o­la­tion tests. The chal­lenges and bot­tle­necks in the ex­ist­ing CERN ac­cel­er­a­tor com­plex to pro­duce the high-in­ten­sity beams fore­seen for this fa­cil­ity at the ini­tial phase are dis­cussed.  
 
THPWO081 Design Options of a High-power Proton Synchrotron for LAGUNA-LBNO 3948
 
  • Y. Papaphilippou, J. Alabau-Gonzalvo, A. Alekou, F. Antoniou, M. Benedikt, I. Efthymiopoulos, R. Garoby, F. Gerigk, B. Goddard, C. Lazaridis, A.S. Parfenova, E.N. Shaposhnikova, R. Steerenberg
    CERN, Geneva, Switzerland
 
  De­sign stud­ies have been ini­ti­ated at CERN, ex­plor­ing the prospects of fu­ture high-power pro­ton beams for pro­duc­ing neu­tri­nos, within the LA­GUNA-LBNO pro­ject. These stud­ies in­clude the de­sign of a 2 MW high-power pro­ton syn­chro­tron (HP-PS) using the LP-SPL as in­jec­tor. This paper re­sumes the de­sign op­tions under study in order to reach this high power, and their im­pli­ca­tions re­gard­ing lay­out, mag­net tech­nol­ogy beam loss con­trol and RF con­sid­er­a­tions. Op­tics op­ti­miza­tion stud­ies are also pre­sented in­clud­ing beam trans­fer and col­li­ma­tion con­sid­er­a­tions.