The decay of ($J^{\pi }$ in parentheses) ${}_{}{}^{52}{}_{}{}^{}\mathrm{V}$($3^{+}$), ${}_{}{}^{52}{}_{}{}^{}\mathrm{Mn}_{}^m{}_{}{}^{}\left(2^{+}\right)$, and ${}_{}{}^{52}{}_{}{}^{}\mathrm{Mn}_{}^g{}_{}{}^{}\left(6^{+}\right)$ has been studied in order to clarify the number and nature of levels in ${}_{}{}^{52}{}_{}{}^{}\mathrm{Cr}$ below 5 MeV. The levels of ${}_{}{}^{52}{}_{}{}^{}\mathrm{Cr}$ that are populated in these $\beta$ decays are ($J^{\pi }$ in parentheses) ground state ($0^{+}$), 1434.08 ($2^{+}$), 2369.60 ($4^{+}$), 2767.68 ($4^{+}$), 2964.77 ($2^{+}$), 3113.82 ($6^{+}$), 3161.63 ($2^{+}$), 3415.27 ($4^{+}$), 3472.2 ($3^{+}$), 3615.84 ($5^{+}$), 3771.8 ($2^{+}$), 3951 (($1^{+}$)), 4015.42 ($5^{+}$), (4208 (-)), 4563 ($3^{-}$), 4627.1 ($5^{+}$), and 4815.7 keV ($2^{+}$). A single level at 3472.2 keV ($3^{+}$) replaces the previously proposed doublet at 3469 and 3473 keV.

RADIOACTIVITY Chemically separated sources; measured $E_{\gamma }$, $I_{\gamma }$, deduced ${}_{}{}^{52}{}_{}{}^{}\mathrm{Cr}$ levels $J$, $\pi$; Compton suppression.

• Received 28 March 1977

DOI:https://doi.org/10.1103/PhysRevC.16.1581