TY  -  
T1  - The role of ions in new particle formation in the CLOUD chamber 
SN  -  /  
UR  - http://hdl.handle.net/10138/230848 
T3  -  
A1  - Wagner, Robert; Yan, Chao; Lehtipalo, Katrianne; Duplissy, Jonathan; Nieminen, Tuomo; Kangasluoma, Juha; Ahonen, Lauri R.; Dada, Lubna; Kontkanen, Jenni; Manninen, Hanna E.; Dias, Antonio; Amorim, Antonio; Bauer, Paulus S.; Bergen, Anton; Bernhammer, Anne-Kathrin; Bianchi, Federico; Brilke, Sophia; Mazon, Stephany Buenrostro; Chen, Xuemeng; Draper, Danielle C.; Fischer, Lukas; Frege, Carla; Fuchs, Claudia; Garmash, Olga; Gordon, Hamish; Hakala, Jani; Heikkinen, Liine; Heinritzi, Martin; Hofbauer, Victoria; Hoyle, Christopher R.; Kirkby, Jasper; Kurten, Andreas; Kvashnin, Alexander N.; Laurila, Tiia; Lawler, Michael J.; Mai, Huajun; Makhmutov, Vladimir; Mauldin III, Roy L.; Molteni, Ugo; Nichman, Leonid; Nie, Wei; Ojdanic, Andrea; Onnela, Antti; Piel, Felix; Quelever, Lauriane L. J.; Rissanen, Matti P.; Sarnela, Nina; Schallhart, Simon; Sengupta, Kamalika; Simon, Mario; Stolzenburg, Dominik; Stozhkov, Yuri; Trostl, Jasmin; Viisanen, Yrjö; Vogel, Alexander L.; Wagner, Andrea C.; Xiao, Mao; Ye, Penglin; Baltensperger, Urs; Curtius, Joachim; Donahue, Neil M.; Flagan, Richard C.; Gallagher, Martin; Hansel, Armin; Smith, James N.; Tome, Antonio; Winkler, Paul M.; Worsnop, Douglas; Ehn, Mikael; Sipilä, Mikko; Kerminen, Veli-Matti; Petäjä, Tuukka; Kulmala, Markku 
A2  -  
PB  -  
Y1  - 2017 
LA  - eng 
AB  - The formation of secondary particles in the atmosphere accounts for more than half of global cloud condensation nuclei. Experiments at the CERN CLOUD (Cosmics Leaving OUtdoor Droplets) chamber have underlined the importance of ions for new particle formation, but quantifying their effect in the atmosphere remains challenging. By using a novel instrument setup consisting of two nanoparticle counters, one of them equipped with an ion filter, we were able to further investigate the ion-related mech... 
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KW  - ATMOSPHERIC AEROSOL NUCLEATION; GALACTIC COSMIC-RAYS; SULFURIC-ACID; MOLECULAR CLUSTERS; NEUTRAL CLUSTER; SIZE MAGNIFIER; BOREAL-FOREST; GROWTH-RATES; HETEROGENEOUS NUCLEATION; FREE TROPOSPHERE; 114 Physical sciences 
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