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Published 1983 | Published
Book Section - Chapter Open

An Accelerator Test of Semi-Empirical Cross-Sections


We compare experimentally measured yields of isotopes of elements from _(12)Mg to _(19)K resulting from the fragmentation of ^(40)Ar with calculated yields based on semi-empirical cross-section formulae. The measurements, made at the LBL Bevalac using a beam of 287 MeV / amu ^(40)Ar incident on a CH_2 target, achieve excellent mass resolution (σ_m ≤ 0.2 amu) through the use of a Si(Li) detector telescope. The general agreement between calculation and experiment is good (rms difference ≃ 24%), but some significant differences are reported.

Additional Information

© 1983 INSDOC. Provided by the NASA Astrophysics Data System. We are grateful to the Heckman/Greiner group at LBL, especially Hank Crawford, for assisting with the calibrations. We thank E. C. Stone for advice and support. This work was supported in part by NASA under contracts NAS5-20721, NAS7-918, and NAS5-20995, and grants NGR 05-002-160 and NAG 5-308.

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