Elsevier

Nuclear Physics

Volume 5, January–March 1958, Pages 595-602
Nuclear Physics

X-ray photoexcitation of Li7

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Abstract

The level width and lifetime of the 477-keV level in Li7 have been measured by photoexcitation using the continuous radiation from an X-ray tube. The level width has been calculated from an absolute measurement of the scattered radiation in an angle of 120 degrees and from a self-absorption experiment. The measured level width is Γ = 6.2 × 10−3 eV giving the lifetime τ = (1.1±0.3) × 10−13 sec. The result is in agreement with earlier measurements by means of the Doppler-broadening of the gamma-line following the reaction B10 (nα)Li7.

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