\begin{table}
\caption{\label{tab:referencevals} Coincidence time resolution values for two identical polished $2\times2\times5$ mm$^3$ Ca-co-doped LSO:Ce wrapping in PTFE tape for standard and DOI measurements.}
\begin{tabular}{cccccccc}
%\begin{tabular}{p{1.8cm}p{2.3cm}p{2.3cm}p{1.7cm}p{2.2cm}cc}
Coincidence Apparatus & Left Energy Resolution (\%) & Right Energy Resolution (\%) & Detected $\gamma\gamma$ Events & Valid $\gamma\gamma$ Events & Delay Peak Centroid (ps) & $\sigma_\textrm{ref}$ (ps) & CTR (ps)\\
\hline
Standard &   7.8$\pm$0.1 &   9.8$\pm$0.1 &    8533$\pm$92 &   637$\pm$25 &  -77.5$\pm$2.3 &   39.3$\pm$1.2 &  131.0$\pm$3.9 \\
DOI &  10.5$\pm$0.1 &  12.7$\pm$0.1 &  18894$\pm$137 &  1498$\pm$39 &  -14.0$\pm$1.6 &   39.6$\pm$0.9 &  132.0$\pm$3.0 \\
\hline
\end{tabular}
\end{table}