\begin{table}%t1
\caption{\label{Table1}Details of experiments performed and discussed in this work.}
\small \begin{tabular}{l c c c c}                                             \hline\hline                                                                Sample & Substrate & $T$(K) & Ion & $E$(keV) \\
\hline                 
CO:SO$_2$ = 5:1 mixture & Si & 16 & H$^+$ & 200 \\                         % 
 CO/SO$_2$ layer & Si & 16 & H$^+$ & 200 \\
 CO:H$_2$S = 10:1 mixture & Si & 20 & H$^+$ & 200 \\
 CO:H$_2$S = 1:10 mixture & KBr & 20 & H$^+$ & 200 \\
 CO/H$_2$S layer & KBr & 20 & H$^+$ & 200 \\
\hline       
\end{tabular}
\end{table}