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Published August 15, 1991 | public
Journal Article

A recoil separator for use in radioactive ion beam experiments

Abstract

The effectiveness of a recoil separator for the measurement of radiative capture reactions at radioactive ion beam facilities has been examined. A system consisting of velocity, energy, and momentum filters was tested with the ^1H(^(12)C, ^(13)N)γ reaction at the E_(cm) = 422 keV resonance; excitation functions obtained with both the ^(13)N recoils and the capture gamma rays were compared. Projectile ^(12)C fluxes were measured directly with Faraday cups and indirectly with Rutherford backscattering into silicon detectors, while the ^(13)N recoil flux was measured directly with silicon detectors and indirectly by its residual radioactivity. A suppression of the ^(12)C beam particles by a factor of 10^(−10) was observed when the system was tuned for the recoil ^(13)N's. Possible improvements of the system are discussed.

Additional Information

© 1991 Elsevier. Received 1 March 1991. This work was supported in part by NSF grant PHY88-17296. The authors would like to thank T.R. Wang, Bob Carr, Jack Richards, and the Kellogg Staff for assistance.

Additional details

Created:
August 20, 2023
Modified:
October 24, 2023