deletions | additions       diff --git a/sectionNeon__A_comme.tex b/sectionNeon__A_comme.tex  index fbe72c2..30745be 100644  --- a/sectionNeon__A_comme.tex  +++ b/sectionNeon__A_comme.tex 
...
\section{Experiments with a Neon Tube}  A commercial apparatus containing Neon atoms was used. The tube contained a cathode, two mesh-type control grids ($G_{1}$ and $G_{2}$) , and a collector electrode. The distance between grid 1 and grid 2 was about 5mm. The distance between the cathode and grid 1 and the distance between the collector electrode and grid 2 was approximately 2 mm. The cathode was kept at a constant current ($135 mA$), and grid 1 and grid 2 were kept at constant voltages. ($4.8V$ and $11.6V$ respectively.) The anode current, (converted into $V_{out}$), oscillates as accelerating voltage $U_{2}$ increases. The final Franck-Hertz curve for Neon shown in Figure 3 contained 3 dips of the anode current. Close observation of the peaks and dips indicates a systematic substructure, but poor data quality meant that it could not which can  be analyzed quantitatively. At explained by  the very end excitation  of additional energy levels of neon above  the graph (about $V_{acc}<80V$), lowest excited state. Figure 2 taken from \cite{Rapior_2006} shows 14 excited levels of Neon divided into two groups, $E_{a1}$ and $E_{a2}$. If  the data looks linear. This mean free path  is consistent with significant, electrons will gain addition energy over $\lambda$, and will excite states in $E_{a2}$ and well as exciting  the expected behavior of Neon after it ionizes. lowest energy level.