Pfeiffer Vacuum (Nashua, N.H.; released its 2005-2007 Mass Spectrometer Catalog. The 116-p catalog contains information on the complete Pfeiffer Vacuum MS (mass spectrometer) product offering from Prisma™ RGA (residual gas analyzer) to mass spectrometers for gas and ion analysis. The catalog covers mass spectrometry fundamentals including how mass spectrometer systems work, mass filter theory and ion source design. It also describes measurements of externally generated ions, such as plasma diagnostics and SIMS (secondary ion mass spectrometer) applications. Various pumping options are depicted along with different inlet arrangements covering a large range of mass spectrometry applications.