Methods and new techniques in neutron capture gamma-ray spectroscopy

1 December 1988

journal article
Published by IOP Publishing in Journal of Physics G: Nuclear Physics

Vol. 14 (S) , S143-S160
https://doi.org/10.1088/0305-4616/14/s/015

Abstract

Neutron capture gamma -ray spectroscopy now employs the most sophisticated techniques to study nuclear structure, yet efforts are continuing to improve still further sensitivity and resolving power of the spectrometers used. The combination of precise measurements of primary gamma -transitions with the precision obtained to date with curved and flat crystal and conversion electron spectrometers has considerably extended the possibilities in the study of nuclear structure. Techniques are also available for the investigation of multiple neutron capture leading to nuclei which are up to three neutrons beyond stability. The nearly perfect resolution obtained with the most modern double flat crystal spectrometers allow the measurement of lifetimes of excited nuclear states in the range -12 s via the observation of the Doppler-broadening of gamma -rays due to the recoil of the nucleus following emission of a primary gamma -ray.

Keywords

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