Complex sentence: This emission was obtained by mixing xenon atoms (Xe (P)) with chlorine gas Cl or other chlorinated compounds (NOCl and SOCl); the excitation was provided by a cold cathode discharge, and the total pressure was a few torrs.
Split into simpler sentences: This emission was obtained by mixing xenon atoms (Xe (P)) with chlorine gas Cl or other chlorinated compounds (NOCl and SOCl). The excitation was provided by a cold cathode discharge; the total pressure was a few torrs.