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Points from Foregoing Letters

Nature volume 143, page 644 (15 April 1939) | Download Citation



L. MBITNER has collected recoil nuclei resulting from the fission of thorium and has found that some of the fission products are chemically analogous to those fission products of uranium which have formerly been assigned to elements beyond uranium. The decay of the new fission products has been analysed into two exponentials with 40 minutes and 14–5 hours half-value period.

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