The Width of the 1 ev Resonance in Plutonium-240

B. R. Leonard, Jr</i>.; E. J. Seppi; W. J. Friesen

doi:dx.doi.org/10.13182/NSE59-A27326

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Home / Publications / Journals / Nuclear Science and Engineering / Volume 5 / Number 1

The Width of the 1 ev Resonance in Plutonium-240

B. R. Leonard, Jr., E. J. Seppi, W. J. Friesen

Nuclear Science and Engineering / Volume 5 / Number 1 / January 1959 / Pages 32-35

Technical Paper / dx.doi.org/10.13182/NSE59-A27326

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The total neutron cross section of Pu²⁴⁰ has been measured at the 1 ev resonance using a crystal spectrometer with good resolution. A detailed analysis was made of the shape of the resonance to obtain the Breit-Wigner level width parameter. The level width was determined to be (32.3 ± 1.5) mv, and the resonance energy was (1.056 ± 0.003) ev.