SEARCH Articles Figures Tables Double focusing Double mass spectrometer Double-focusing mass Double-focusing sector Double-focusing sector field Double-focusing sector field mass Double-focusing sector field mass spectrometer Double-focusing sector mass Double-focusing sector mass spectrometer Double-focusing spectrometer Focusing geometry Mass spectrometer Mattauch-Herzog Mass spectrometer sector field Mattauch Mattauch-Herzog Mattauch-Herzog double-focusing Mattauch-Herzog geometry Mattauch-Herzog geometry double-focusing mass spectrometers with Sector Sector field Sector mass spectrometers Sectorization