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- Bennett, J. R. J., et al.
(författare)
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Measurements of intense beams of Li-11 from a tantalum foil target
- 1999
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Ingår i: Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms. - 0168-583X. ; 155:4, s. 515-517
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Tidskriftsartikel (refereegranskat)abstract
- The yields of Li-11 from a tantalum target, constructed from very thin foils, have been measured at ISOLDE and found to be an order of magnitude greater than those previously measured for a standard roll foil target. The modifications to the existing target designs were based on theoretical modelling calculations. The tantalum foils are 2 mu m thick and the target mass is only one tenth of normal foil targets. (C) 1999 Elsevier Science B.V. All rights reserved.
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- Bennett, J. R. J., et al.
(författare)
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Release studies of a thin foil tantalum target for the production of short-lived radioactive nuclei
- 2002
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Ingår i: Nuclear Physics A. - 0375-9474. ; 701, s. 327C-333C
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Konferensbidrag (refereegranskat)abstract
- Measurements have been made at ISOLDE, of the release curves and yields of radioactive beams of lithium, sodium and beryllium from a target constructed from 2 pm thick foils. The release curves have been analysed by fitting to a mathematical model to determine the coefficients of diffusion of the particles in the foils and effusion through the target and ionizer at several temperatures. Through a better understanding of the rate of transport of the particles, it is possible to design targets and ionizers with improved yields. This is most important for the rare, short-lived isotopes in which there is considerable interest for physics experiments. This target has demonstrated large increases in the yields of Li-11 and Be-12, in agreement with the predictions of the model. (C) 2002 Elsevier Science B.V. All rights reserved.
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