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ISOLDE contribution to task 11 8.Prediction of secondary beam intensities

ISOLDE contribution to task 11 8.Prediction of secondary beam intensities. M7.1 The ISOLDE yield database  January 2006 M7.2 Extrapolation of release efficiencies  June 2006. Pierre Delahaye for the ISOLDE collaboration. EURISOL DS Task 11 kick-off meeting, GSI, Darmstadt 18/03/05.

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ISOLDE contribution to task 11 8.Prediction of secondary beam intensities

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  1. ISOLDE contribution to task 118.Prediction of secondary beam intensities M7.1 The ISOLDE yield database  January 2006M7.2 Extrapolation of release efficiencies  June 2006 Pierre Delahaye for the ISOLDE collaboration EURISOL DS Task 11 kick-off meeting, GSI, Darmstadt 18/03/05

  2. The ISOLDE yield database

  3. Release profile ISOLDE t=0: production of radioisotopes by 2 ms short proton pulse 80Rb release 80Rb release logarithmic linear • Pulsed driver beam • Yield determination requires measurement of entire release curve  lengthy! • Release curve provides additional information on performance of target and ion source unit.

  4. Empiric release formula Release = Diffusion + Desorption+Effusion. 80Rb release 80Rb release Empiric 4-parameter formula: F(t) = N ·(1-exp(-t/trise)) ·(a · exp(-t/tfast) +(1-a) · exp(-t/tslow)) J. Lettry et al., Nucl. Instr. Meth. B126 (1997) 130.

  5. Status

  6. DeliverablesSecond year of EURISOL • M7.1 The ISOLDE database extension will be considered as completed with the release of the updated database as part of the Targisol project in January 2006 • M7.2 The extrapolation of the ISOLDE yields for the EURISOL-like targets will be done with the help of the participants of task 3

  7. M7.2 Extrapolation of yields for the EURISOL-type targets • Specification of the future target units from the target groups (task 3): maximum impinging proton intensity • Scaling of the yield according to • ISOLDE measured yields • maximum proton intensity • Expected progress in ionizing techniques (ECR ion source, upgraded RILIS)

  8. Conclusions • The deliverable M7.1 (ISOLDE database) is on tracks, almost completed • The deliverable M7.2 (Yield extrapolation) needs input from the task 3 participants. It is expected to be reached on time for the 100kW targets. • Thank you to Ulli for his useful support Thank you for your attention!

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