Measurement of ultra-fast γ-ray transitions from heavy-ion compound-nucleus reactions

A method for correcting target-thickness-induced Doppler broadening in γ-ray spectra from weakly populated, very short-lived (femtosecond) states is presented. The method is illustrated by an analysis of superdeformed transitions in 152,153Dy for which the validity of the procedure could be verified...

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Veröffentlicht in:	Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 1995, Vol.354 (2), p.591-594
Hauptverfasser:	Cederwall, B., Lee, I.Y., Asztalos, S., Brinkman, M.J., Becker, J.A., Clark, R.M., Deleplanque, M.A., Diamond, R.M., Fallon, P., Farris, L.P., Henry, E.A., Hughes, J.R., Macchiavelli, A.O., Stephens, F.S.
Format:	Artikel
Sprache:	eng
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	A method for correcting target-thickness-induced Doppler broadening in γ-ray spectra from weakly populated, very short-lived (femtosecond) states is presented. The method is illustrated by an analysis of superdeformed transitions in 152,153Dy for which the validity of the procedure could be verified consistently from previous lifetime measurements in 152Dy. Furthermore, estimates of the superdeformed lifetimes, previously not measured in 153Dy, are obtained.
ISSN:	0168-9002 1872-9576 1872-9576
DOI:	10.1016/0168-9002(94)01468-X