\begin{table}%T2
\caption{\label{table1}The relative intensity enhancement~d$I/I$ of each of the 7~blobs (columns) as a percentage of the background intensity. The intensity enhancements are calculated at~8~different positions along the track (rows).}
%\centering
\par
\begin{tabular}{l| c c c c c c c}
\hline \hline  
Position (pixels)& B1 & B2 & B3 & B4 & B5 & B6 & B7 \\
% &  &  & &  &  &  &  \\
\hline 
 606 (A) & / & 15 & 18 & 17 & 6 & / & 48.6 \\  
 514 & 8.7 & 19 & 10.8 & 12.7 & (17.5) & (22.4) & 42 \\  
 438 (B) & 10 & 12 & / & 5.7 & / & 51.9 & 31 \\  
 361 & 13 & 19 & / & 13.4 & / & 69.1 & 43 \\  
 280 (C) & 8 & / & 6.7 & 4.6 & 44.4 & 43.8 & 24 \\  
 208 & 6 & / & 8.3 & 9.5 & 36.2 & 33.1 & 22 \\  
 120 (D) & / & / & 5.5 & 14.5 & 38 & 27.5 & 14 \\  
 45 & / & / & / & 15 & 24.5 & 17.3 & 6 \\  
\hline  
mean & 9.1 & 16.3 & 9.9 & 11.6 & 27.8 & 37.9 & 28.8 \\ 
st.dev & 2.6 & 3.4 & 5.0 & 4.5 & 14.4 & 18.3 & 15.0 \\ 
\hline 
d$n/n$ & 4.6 & 8.1 & 4.9 & 5.8 & 13.9 & 18.9 & 14.4 \\ 
\hline
\end{tabular}
\end{table}