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- W72122561 startingPage "2036" @default.
- W72122561 abstract "The spontaneous emission of $^{14}mathrm{C}$ from $^{223}mathrm{Ra}$, recently discovered by Rose and Jones, has been confirmed, and the mass of the emitted particles unambiguously identified. The present measurement was performed with a $^{227}mathrm{Th}$ source containing 9.2 mCi of $^{223}mathrm{Ra}$. An Enge split-pole magnetic spectrograph was used to suppress the intense alpha radiation and to identify the $^{14}mathrm{C}$ particles. The spectrograph was calibrated with tandem-accelerated beams of $^{14}mathrm{C}$, $^{13}mathrm{C}$, and $^{12}mathrm{C}$. In six days of decay counting, twenty-four $^{14}mathrm{C}$ events were observed yielding a branching ratio of (4.7ifmmodepmelsetextpmfi{}1.3)ifmmodetimeselsetexttimesfi{}${10}^{mathrm{ensuremath{-}}10}$ for the emission of $^{14}mathrm{C}$ from $^{223}mathrm{Ra}$ relative to that of alpha particles. The value is in fair agreement with the result of Rose and Jones, (8.5ifmmodepmelsetextpmfi{}2.5)ifmmodetimeselsetexttimesfi{}${10}^{mathrm{ensuremath{-}}10}$, and with more recent measurements from other laboratories." @default.
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- W72122561 date "1985-12-01" @default.
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- W72122561 title "Spontaneous<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi mathvariant=normal>C</mml:mi></mml:mrow><mml:mprescripts /><mml:mrow /><mml:mrow><mml:mn>14</mml:mn></mml:mrow><mml:mrow /><mml:mrow /></mml:mmultiscripts></mml:mrow></mml:math>emission from<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi mathvariant=normal>Ra</mml:mi></mml:mrow><mml:…" @default.
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- W72122561 doi "https://doi.org/10.1103/physrevc.32.2036" @default.
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