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9 Be(n, a ) 6 He production tests for b -beams

T. Stora Target and Ion Source Development (TISD) EN-STI-RBS. 9 Be(n, a ) 6 He production tests for b -beams. From last year. 9 Be(n, a ) 6 He. Actinide targets (ThO, UCx). pure. n-rich. Pure Lanthanide beams. TISD.

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9 Be(n, a ) 6 He production tests for b -beams

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  1. T. Stora Target and Ion Source Development (TISD) EN-STI-RBS 9Be(n,a)6He production testsfor b-beams

  2. From last year 9Be(n,a)6He Actinide targets (ThO, UCx) pure n-rich Pure Lanthanide beams

  3. TISD • Standing Group for Upgrade of ISOLDE (SGUI)Results and Priorities discussed vs proposals from INTC • BeO tests : target material, n-converter for (n,X) • Low work function cavities (GdB6) for Nd beams • UC-x tests (INFN, EURISOL Task#3)

  4. Production of 6He • 1.3 10136He/s 100kW, 40 MeV deuton beam • 2 10136He/s 100kW, 1 GeV proton beam • 10146He/s 200kW, 2 GeV proton beam M. Hass et al., J. Phys. G 35, 014042 (2008); T. Hirsh et al., PoS (Nufact08)090 N. Thiolliere et al., EURISOL-DS, TN03-25-2006-0004 Ø3cm , 15cm Ø3cm , 24cm T. Stora et al., EURISOL-DS, TN03-25-2006-0003

  5. Proton beam focusing on converter • In collaboration with E. Piselli and PSB operator, BE-OP • No tailing detected on SEMGRIDS

  6. Neutron characteristics • Foil activation & Fluka simulations Irradiation permit requested to SC-RP

  7. Neutrons characteristics s E

  8. Neutrons characteristics E. Noah, R. Hodak, P. Delahaye

  9. BeO : A new target material R. Hodak, H. Franberg, V. Kumar

  10. 6He Yields • Also 9Be(n,2p)8He production seen

  11. BeO release properties • Effusion characteristics • 1st order evaluation: teff ~ trise ~ V T-0.5 Online tests team

  12. Nd beams with GdB6 cavity RILIS and TISD developments A=139

  13. Nd beams with GdB6 cavity

  14. 30Si(n,a)27Mg Production 9Be(n,a)6He 30Si(n,a)27Mg 1st estimates : 3-30pA 27Mg+, < 100pA 27Al+ 100 mbarn 130 mbarn 3 MeV 15 MeV

  15. Acknowledgment • Eurisol-DS – Euro n • E. Noah • R. Hodak, B. Crepieux, E. Bouquerel, P. Carbonez, E. Piselli, BE-OP • GANIL (G. Lhersonneau, MG de Saint Laurent, P. Delahaye, H. Franberg, F. de Oliveira)‏ • Weiztman Inst (V. Kumar, T. Hirsh, M. Hass)‏

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