Updated the manual.

doc/latexuguide/biblio-mad.bib

@@ -538,11 +538,31 @@ @TechReport{lebedev2010
   note =         {\url{http://cern.ch/madx/doc/1748-0221_5_10_P10010.pdf}}}
 
 @TechReport{kapin2013,
-	author        = "Valery Kapin and Frank Schmidt",
-	title         = "{MADX-SC Flag Description}",
-	month         = "Nov",
-	year          = "2013",
-	number        = {CERN-ACC-NOTE-2013-0036}}
+  author        = "Valery Kapin and Frank Schmidt",
+  title         = "{MADX-SC Flag Description}",
+  month         = "Nov",
+  year          = "2013",
+  number        = {CERN-ACC-NOTE-2013-0036}}
+
+@article{Helm1973,
+  author = {R. H. Helm and M. J. Lee and P.L. Morton and M. Sands},
+  title = "{Evaluation of synchrotron radiation integrals}",
+  number = {SLAC-PUB-1193},
+  journal = {IEEE Trans. Nucl. Sci.},
+  pages = {900-901},
+  year = {1973},
+  note =         {\href{https://www.slac.stanford.edu/pubs/slacpubs/1000/slac-pub-1193.pdf}{PDF}}}
+}
+
+@article{Jowett1986,
+  author        = {J. M. Jowett},
+  title         = {Introductory statistical mechanics for electron storage rings},
+  journal       = {AIP Conf. Proc.},
+  number        = {SLAC-PUB-4033},
+  pages         = {864-970},
+  year          = {1986},
+  note =         {\href{http://cds.cern.ch/record/175614}{PDF}}}
+}
 
 %% EOF
 

doc/latexuguide/conventions.tex

@@ -740,7 +740,9 @@ \subsection{Variables in the SUMM Table}
 	\ttitem{SYNCH\_2} Second synchrotron radiation integral  
 	\ttitem{SYNCH\_3} Third synchrotron radiation integral  
 	\ttitem{SYNCH\_4} Fourth synchrotron radiation integral  
-	\ttitem{SYNCH\_5} Fifth synchrotron radiation integral  
+	\ttitem{SYNCH\_5} Fifth synchrotron radiation integral    
+	\ttitem{SYNCH\_6} Sixth synchrotron radiation integral  
+	\ttitem{SYNCH\_8} Eighth synchrotron radiation integral  
 \end{madlist}
 
 Notice that in \madx, PT substitutes DELTAP as longitudinal
@@ -751,6 +753,24 @@ \subsection{Variables in the SUMM Table}
 number of time equal to the order of the derivative to find the
 functions given in the literature. 
 
+The first five radiation integrals, SYNCH\_1 through to SYNCH\_5, 
+are defined and computed using the expressions in~\cite{Helm1973}. 
+It should be noted that these integrals assume that the beam traverses 
+through the centre of each element and does not take into account effects 
+from non-zero closed orbits, including orbits resulting from chromatic effects. 
+These integrals are therefore useful for estimating various radiation 
+properties of an ideal machine but the EMIT module should be used for 
+a more general case. 
+
+The integrals six and eight,  SYNCH\_6 and SYNCH\_8, as defined 
+in~\cite{Jowett1986} have been implemented to capture phenomena 
+not considered by the first five integrals. Integral six is required 
+for computing the radiation in the quadrupoles and integral eight 
+can be used to understand how the partition function varies for off 
+momentum beams as detailed in~\cite{Jowett1986}. Again, these 
+estimates should be used with caution and the EMIT module should 
+be used for precise computations.
+
 \subsection{Variables in the TRACK Table}
 \label{subsec:tables-track}
 The command RUN writes tables with the following variables: