Additional Associates Elena Wildner for WP 4 263

Additional Associates Elena Wildner for WP 4 26/3 2009 EUROnu Annual Meeting 1

New Associates I n Small Group from Physikalisches Institut B, Rheinisch-Westfaelische Technische Hochschule in Aachen q q n Work Focus q q n Achim Stahl Students Realization of beta beam in the Hera Tunnel (Desy) Physics studies Added Value q q 26/3 2009 New Site Option More flexibility for a realization of a beta beam (“green field”? ) EUROnu Annual Meeting Courtesy Achim Stahl 2

Physics Driven Choice of Site Possible realization with one detector only (price): nm-beam: SPL: <En> = 260 Me. V Lopt = 134 km CERN – Frejus: 130 km ne-beam: g = 150 Lopt = 300 km g = 500 Lopt = 1000 km 3 -Flavor Oscillation needs two significantly different baselines to disentangle CP and matter effects 26/3 2009 EUROnu Annual Meeting CERN – Frejus: 130 km DESY – Frejus: 960 km Courtesy Achim Stahl 3

Conceptual Layout New ring in the HERA tunnel for final acceleration and as decay ring 12 T Dipole 35 m long Source & pre-accel. „Halle West“ HERA rebuilt as RCL with RF replacing experimental inserts in straight sections 4. 7 Ge. V preacceleration (new) Ion source (new) 12 T Dipole 2 x 35 m long 26/3 2009 EUROnu Annual Meeting Courtesy Achim Stahl 4

New Associates II n Weizmann Institue of Science, Revohot q q q n Work Focus q q q n Michael Hass Partners: GANIL and Soreq Collaboration with Aachen (exchange of students) produce light radioactive isotopes also for beta beams secondary neutrons from an intense, 40 Me. V d beam (6 He and 8 Li) and direct production with 3 He or 4 He beams (18 Ne). Use of superconducting LINACs such as SARAF at Soreq (Israel) and the driver for SPIRAL-II (GANIL). Added Value q To produce strong beta beam ion candidates or production methods not in EUROnu Courtesy Micha Hass 26/3 2009 EUROnu Annual Meeting 5