EURISOL Instrumentation Reaching the drip lines Best way to reach drip lines: fragmentation or in-flight fission e.g. 48 Ni, 100 Sn, 78 Ni etc  fragment.

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Presentation transcript:

EURISOL Instrumentation Reaching the drip lines Best way to reach drip lines: fragmentation or in-flight fission e.g. 48 Ni, 100 Sn, 78 Ni etc  fragment separator  fragmentation of radioactive beams

EURISOL Instrumentation Beta-decay studies super-allowed 0 +  0 + decays: CVC, CKM matrix b-delayed decays: ,  p,  2p,  3p,  n,  2n,  3n Isobar separator Ion source Transfer tube Target Driver accelerator + Tape transport system

EURISOL Instrumentation NuclidesT 1/2,ms xn P xn,% 11 Li8.52n 3n 4.1(4) 1.9(2) 14 Be14.52n 3n 0.80(8) 0.2(2) 15 B10.42n0.4(2) 17 B5.12n 3n 4n 11(7) 3.5(7) 0.4(3) 30 Na482n1.17(16) 32 Na13.52n8(2) 34 Na5.52n~ 50 Beta-delayed neutron detection  2n: neutron-neutron correlation  two-neutron radioactivity neutron knockout reactions: e.g. 28 Ne  26 O, 30 Ne  28 O  high-efficiency neutron detector: - TONNERE type - DEMON type  sweeper magnet

EURISOL Instrumentation Neutron detection E. Sokol, Flerov Laboratory, Dubna 3 He detectors: Zero energy threshold Zero cross-talk High efficiency Low  sensitivity Low internal background Easy to use

EURISOL Instrumentation Beta-delayed neutron detection Buta A. et al., NIM A 455 (2000) pp SCINTILLATOR MODULES Collaboration LPC Caen - IFIN Bucarest beam

EURISOL Instrumentation Two-proton radioactivity: Ground-state decay  2p decays

EURISOL Instrumentation Two-proton radioactivity Silicon cube, CENBG

EURISOL Instrumentation Two-proton radioactivity: Time projection chamber

EURISOL Instrumentation MUST SPEG Target 9 Be 20 Mg 19 Mg Mass 18 Na+p 17 Ne+2p 19 Mg 17 Ne p p SISSI Two-proton radioactivity: short lived emitters High-energy proton detectors:  MUST1/2 High-resolution spectrometer:  S800 / SPEG / PRISMA