\relax \@writefile{toc}{\contentsline {section}{\numberline {2.7}{Proportional Chambers}}{38}{section.2.7}} \@writefile{toc}{\contentsline {section}{\numberline {2.8}{DC and PC Calibrations}}{38}{section.2.8}} \@writefile{toc}{\contentsline {section}{\numberline {2.9}{Gas System}}{39}{section.2.9}} \@setckpt{chap2-pc}{ \setcounter{page}{40} \setcounter{equation}{2} \setcounter{enumi}{0} \setcounter{enumii}{0} \setcounter{enumiii}{0} \setcounter{enumiv}{0} \setcounter{footnote}{0} \setcounter{mpfootnote}{0} \setcounter{part}{1} \setcounter{chapter}{2} \setcounter{section}{9} \setcounter{subsection}{0} \setcounter{subsubsection}{0} \setcounter{paragraph}{0} \setcounter{subparagraph}{0} \setcounter{figure}{10} \setcounter{table}{0} \setcounter{NAT@ctr}{0} \setcounter{Item}{0} \setcounter{Hfootnote}{0} \setcounter{section@level}{1} }