TY  - CONF
A1  - Efthymiopoulos, Ilias
A1  - Berrig, Olav Ejner
A1  - Bohl, Thomas
A1  - Breuker, Horst
A1  - Calviani, Marco
A1  - Manglunki, Django
A1  - Mataguez, Simon
A1  - Maury, Stephan
A1  - Valderanis, Chrysostomos
A1  - Cornelis, Karel
A1  - Spanggaard, Jens
A1  - Cettour-Cave, Stephane
A1  - Gaździcki, Marek
A1  - Seyboth, Peter
A1  - Fodor, Zoltan
A1  - Ströbele, Herbert
A1  - Guber, Fedor
A1  - Ivashkin, Alexander
T1  - Development of fragmented low-Z ion beams for the NA61 fixed-target experiment at the CERN SPS
T2  - Proceedings of IPAC11 Conference, San Sebastián, Spain
N2  - The NA61 ex­per­i­ment, aims to study the prop­er­ties of the onset of de­con­fine­ment at low SPS en­er­gies and to find sig­na­tures of the crit­i­cal point of strong­ly in­ter­act­ing mat­ter. A broad range in T-μB phase di­a­gram will be cov­ered by per­form­ing an en­er­gy (13A-158A GeV/c) and sys­tem size (p+p, Be+Be, Ar+Ca, Xe+La) scan. In a first phase, frag­ment­ed ion beams of 7Be or 11C pro­duced as sec­on­daries with the same mo­men­tum per nu­cle­on when the in­ci­dent pri­ma­ry Pb-ion beam hits a thin Be tar­get will be used. The H2 beam line that trans­ports the beam to the ex­per­i­ment acts as a dou­ble spec­trom­e­ter which com­bined with a new thin tar­get (de­grad­er) where frag­ments loose en­er­gy pro­por­tion­al to the square of their charge al­lows the sep­a­ra­tion of the want­ed A/Z frag­ments. Thin scin­til­la­tors and TOF mea­sure­ment for the low en­er­gy points are used as par­ti­cle iden­ti­fi­ca­tion de­vices. In this paper re­sults from the first test of the frag­ment­ed ion beam done in 2010 will be pre­sent­ed show­ing that a pure Be beam can be ob­tained sat­is­fy­ing the needs of the ex­per­i­ment.
Y1  - 2011
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/36509
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-365098
UR  - http://accelconf.web.cern.ch/AccelConf/IPAC2011/papers/thps051.pdf
N1  - Copyright (c) 2011 by IPAC’11/EPS-AG — cc Creative Commons Attribution 3.0 (CC BY 3.0)
IS  - THPS051
SP  - 3541
EP  - 3543
ER  -