The Yohkoh satellite has registered X-ray spectra of two solar flares with a linelike feature in the region 400-500 keV. Analysis shows that this feature can be interpreted as gamma-ray lines from excited ~7Li and ~7Be produced from α + α reactions. The ~7Li production rate in the solar atmosphere is estimated from these observations. The lower limit on the flare-produced ~7Li abundance on the Sun is determined. This value is several times less than that obtained from optical observations of the solar atmospheric ~7Li.
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