Kalium-42

⁴⁰₁₈Ar	⁴¹₁₉K	⁴²₂₀Ca
	$\nwarrow$ $\uparrow$ $\nearrow$
	$\leftarrow$ ⁴²₁₉K $\rightarrow$	⁴³₂₀Ca
	$\swarrow$ $\downarrow$ $\searrow$

Lys van isotope

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Neutronaktivering

Hierdie isotoop word deur neutronvangs uit ⁴¹K gevorm. (⁴¹K(n,γ)⁴²K) Dit is taamlik radioaktief en ondergaan betaverval na ⁴²₂₀Ca wat elektrone met 'n energie van 3,55 en 1,99 MeV vrystel, gevolg deur vrystelling van 'n gammafoton van 1,53 MeV. Hierdie vrystelling kan gebruik word vir die bepaling van kalium in gesteentes met 'n konsentrasie van dpm's. [2]

Verwysings

The NUBASE evaluation of nuclear and decay properties G. Audi, O. Bersillon, J. Blachot, A.H. Wapstra IUPAC
["Neutron activation analysis of potassium in ultrabasic rocks Hiroshi Nagasawa, Hiroshi Wakita Geochemical Journal 1, 1967 149-154" (PDF). Geargiveer vanaf die oorspronklike (PDF) op 21 April 2020. Besoek op 26 Julie 2018. Neutron activation analysis of potassium in ultrabasic rocks Hiroshi Nagasawa, Hiroshi Wakita Geochemical Journal 1, 1967 149-154]

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[nndc-1] The NUBASE evaluation of nuclear and decay properties G. Audi, O. Bersillon, J. Blachot, A.H. Wapstra IUPAC

[2] ["Neutron activation analysis of potassium in ultrabasic rocks Hiroshi Nagasawa, Hiroshi Wakita Geochemical Journal 1, 1967 149-154" (PDF). Geargiveer vanaf die oorspronklike (PDF) op 21 April 2020. Besoek op 26 Julie 2018. Neutron activation analysis of potassium in ultrabasic rocks Hiroshi Nagasawa, Hiroshi Wakita Geochemical Journal 1, 1967 149-154]