deletions | additions       diff --git a/sectionFACILITY_OPER.tex b/sectionFACILITY_OPER.tex  index 33298a1..979337c 100644  --- a/sectionFACILITY_OPER.tex  +++ b/sectionFACILITY_OPER.tex 
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\subsection{Elettra}   Elettra~\cite{Bocchetta_1995} operates for about 75\% of user dedicated time at 2$\,$GeV while for the remaining 25\% at 2.4$\,$GeV; being the only facility to operate at two energies in top-up.   The main operating modes are multibunch multi-bunch  with a dark gap of 42$\,$ns and hybrid (at 20\% of the total user beam time) with a single bunch in the middle of the dark gap.   The operating intensities are 310$\,$mA at 2$\,$GeV and 160$\,$mA at 2.4$\,$GeV with a 5$\,$mA single bunch added when in hybrid mode.   Also the single bunch is automatically refilled by the top-up routine with a delta of 0.5$\,$mA.  
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\subsection{PETRA III}  PETRA III~\cite{Weckert_2005}, with a circumference of 2.3$\,$km and an RF frequency of 500$\,$MHz, has a harmonic number of 3840.  For about 50\% of the user time PETRA III is operated in a continuous filling mode; the rest of the user time is used for timing modes. All modes are in top-up operation at 100$\,$mA. In the continuous filling modes either every fourth bucket (960 bunches), or every eighth (480 bunches) is filled;  in timing mode we fill either 40 bunches (192$\,$ns bunch spacing) or 60 bunches (128$\,$ns bunch spacing).  The four modes are called "Continuous 960", "Continuous 480", "Timing 40" and "Timing 60". 
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\begin{tabular}{ c c c }  \textbf{Facility} & \textbf{Number of modes}& \textbf{Comments}\\   ALBA & 1 & Multi bunch, top-up \\   BESSY II & 4 & Multi- and single bunch, low -\alpha$, low-$\alpha$,  ``PTB'' \\ Elettra & 2 & Beam energies 2.0 and 2.4 GeV \\   LNLS-UVX & 2 & Multi bunch and single bunch \\   PETRA III & 4 & 40 to 960 bunches at 100 mA \\