New Measurements of the Lifetimes of Excited States of Mn-55 Below 2.7 MeV

Journal Article · Mon Sep 14 00:00:00 EDT 2009 · Physical Review. B, Condensed Matter and Materials Physics

DOI:https://doi.org/10.1103/PhysRevC.80.037302· OSTI ID:967197

Caggiano, Joseph A. ^[1]; Hasty, R. ^[2]; Korbly, Steve ^[2]; Park, William H. ^[2]; Warren, Glen A. ^[1]

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1. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
2. Passport System, Inc., Billerica, MA (United States)

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.

• Research Organization: Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 967197
• Report Number(s): PNNL-SA-64998; NN2001000; TRN: US0904273
• Journal Information: Physical Review. B, Condensed Matter and Materials Physics, Vol. 80, Issue 3; ISSN 1098-0121
• Publisher: American Physical Society (APS)
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
MANGANESE 55
LIFETIME
EXCITED STATES
RESONANCE FLUORESCENCE
ALUMINIUM
Nuclear Resonance Fluorescence
NRF
Mn
cross section
thick targets