New measurements of the lifetimes of excited states of Mn 55 below 2.7 MeV

New measurements of the lifetimes of excited states of Mn 55 below 2.7 MeV

The lifetimes of the excited states of 55 Mn between 1.5 and 2.7 MeV were measured using nuclear resonance fluorescence. The absolute lifetimes of the excited levels were determined from simultaneous measurements of manganese and aluminum. In this approach, the precisely known aluminum states serves...

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Veröffentlicht in:Physical review. B, Condensed matter and materials physics Condensed matter and materials physics, 2009-09, Vol.80 (3), Article 037302
Hauptverfasser: Caggiano, J. A., Hasty, R. D., Korbly, S. E., Park, W. H., Warren, G. A.
Format: Artikel
Sprache:eng
Schlagworte:
ALUMINIUM
cross section
EXCITED STATES
LIFETIME
MANGANESE 55
NRF
NUCLEAR PHYSICS AND RADIATION PHYSICS
Nuclear Resonance Fluorescence
RESONANCE FLUORESCENCE
thick targets
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Beschreibung
Zusammenfassung:The lifetimes of the excited states of 55 Mn between 1.5 and 2.7 MeV were measured using nuclear resonance fluorescence. The absolute lifetimes of the excited levels were determined from simultaneous measurements of manganese and aluminum. In this approach, the precisely known aluminum states serves as a means to normalize the results. Our findings differ from the evaluated level lifetimes in ENSDF, but agree with earlier nuclear resonance fluorescence measurements.
ISSN:0556-2813
1098-0121
1089-490X
1550-235X
DOI:10.1103/PhysRevC.80.037302