TY - GEN
T1 - Characterization of diethylene glycol-condensation particle counters for detection of sub-3 nm particles
AU - Wimmer, Daniela
AU - Lehtipalo, Katrianne
AU - Franchin, Alessandro
AU - Kangasluoma, Juha
AU - Kreissl, Fabian
AU - Kürten, Andreas
AU - Kupc, Agnieszka
AU - Metzger, Axel
AU - Mikkilä, Jyri
AU - Petäjä, Tuukka
AU - Riccobono, Francesco
AU - Vanhanen, Joonas
AU - Kulmala, Markku
AU - Curtius, Joachim
PY - 2013
Y1 - 2013
N2 - The counting efficiencies of 2 different types of diethylene-glycol (DEG) based Condensation Particle Counters (CPCs) is described and discussed. The development of two laminar flow CPCs, sensitive in the size range below 3 nm is described. The two types used are a modified TSI 3776 laminar diffusion-type CPC operating with DEG instead of butanol (DEG-CPC) and a turbulent mixing Particle Size Magnifier (PSM) A09 from Airmodus. For each of the two types two different systems with slightly different settings have been investigated, respectively. The two laminar flow CPCs were operated at different temperature settings, where one of the mixing type systems was running at a fixed saturation ratio and therefore had a fixed cut-off diameter and the other one was opaerated in scanning mode. Various different test aerosols have been generated to obtain cut-off curves for all four different CPCs. The main focus was on measuring the counting efficiencies under well controlled laboratory conditions. Therefore a high resolution mass spectrometer was used in the setup as well.
AB - The counting efficiencies of 2 different types of diethylene-glycol (DEG) based Condensation Particle Counters (CPCs) is described and discussed. The development of two laminar flow CPCs, sensitive in the size range below 3 nm is described. The two types used are a modified TSI 3776 laminar diffusion-type CPC operating with DEG instead of butanol (DEG-CPC) and a turbulent mixing Particle Size Magnifier (PSM) A09 from Airmodus. For each of the two types two different systems with slightly different settings have been investigated, respectively. The two laminar flow CPCs were operated at different temperature settings, where one of the mixing type systems was running at a fixed saturation ratio and therefore had a fixed cut-off diameter and the other one was opaerated in scanning mode. Various different test aerosols have been generated to obtain cut-off curves for all four different CPCs. The main focus was on measuring the counting efficiencies under well controlled laboratory conditions. Therefore a high resolution mass spectrometer was used in the setup as well.
KW - CPC
KW - calibration
KW - counting efficiencies
KW - nano-aerosol
UR - https://www.scopus.com/pages/publications/84877333518
U2 - 10.1063/1.4803239
DO - 10.1063/1.4803239
M3 - Conference contribution
AN - SCOPUS:84877333518
SN - 9780735411524
T3 - AIP Conference Proceedings
SP - 204
EP - 207
BT - Nucleation and Atmospheric Aerosols - 19th International Conference
T2 - 19th International Conference on Nucleation and Atmospheric Aerosols, ICNAA 2013
Y2 - 23 June 2013 through 28 June 2013
ER -