TY - JOUR A1 - Salcedo, D. A1 - Onasch, T. B. A1 - Canagaratna, M. R. A1 - Dzepina, K. A1 - Huffman, J. A. A1 - Jayne, J. T. A1 - Worsnop, D. R. A1 - Kolb, C. E. A1 - Weimer, S. A1 - Drewnick, F. A1 - Allan, J. D. A1 - Delia, A. E. A1 - Jimenez, J. L. T1 - Technical Note: Use of a beam width probe in an Aerosol Mass Spectrometer to monitor particle collection efficiency in the field JO - Atmos. Chem. Phys. J1 - ACP VL - 7 IS - 2 SP - 549 EP - 556 Y1 - 2007/01/30 PB - Copernicus Publications SN - 1680-7324 UR - http://www.atmos-chem-phys.net/7/549/2007/ L1 - http://www.atmos-chem-phys.net/7/549/2007/acp-7-549-2007.pdf DO - 10.5194/acp-7-549-2007 ER -