Measuring atmospheric ion bursts and their dynamics using mass spectrometry

Show full item record



Permalink

http://hdl.handle.net/10138/165314

Citation

Junninen , H , Duplissy , J , Ehn , M , Sipilä , M , Kangasluoma , J , Franchin , A , Petäjä , T , Manninen , H E , Kerminen , V-M , Worsnop , D & Kulmala , M 2016 , ' Measuring atmospheric ion bursts and their dynamics using mass spectrometry ' , Boreal Environment Research , vol. 21 , no. 3-4 , pp. 207-220 .

Title: Measuring atmospheric ion bursts and their dynamics using mass spectrometry
Author: Junninen, Heikki; Duplissy, Jonathan; Ehn, Mikael; Sipilä, Mikko; Kangasluoma, Juha; Franchin, Alessandro; Petäjä, Tuukka; Manninen, Hanna E.; Kerminen, Veli-Matti; Worsnop, Douglas; Kulmala, Markku
Contributor: University of Helsinki, Department of Physics
University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Department of Physics
University of Helsinki, Department of Physics
University of Helsinki, Department of Physics
University of Helsinki, Department of Physics
University of Helsinki, Department of Physics
University of Helsinki, Department of Physics
University of Helsinki, Department of Physics
University of Helsinki, Department of Physics
University of Helsinki, Department of Physics
Date: 2016-05-23
Language: eng
Number of pages: 14
Belongs to series: Boreal Environment Research
ISSN: 1239-6095
URI: http://hdl.handle.net/10138/165314
Abstract: Atmospheric ions are produced after a cascade of reactions starting from initial ionization by high energetic radiation. Such ionization bursts generate ions that rapidly react and generate a suite of ion products. Primary ions are in the atmosphere originate from radioactive decay, gamma radiation from the soil or cosmic ray events. In this work, we modified an existing instrumentation and developed a novel setup for detecting ion bursts. The setup consists of a continuous flow ionization chamber coupled to Atmospheric Pressure interface Time-Of-Flight (APi-TOF) mass spectrometer. The APi-TOF sampling rate was set to 100 Hz in order to detect individual ion bursts from ionization events. Besides counting the individual ionization events, the developed setup is able to follow the rapidly changing chemical composition of ions during ion burst cascade. The setup can give us insights into the primary ionization mechanisms and their importance in atmospheric ion and aerosol dynamics.
Subject: GALACTIC COSMIC-RAYS
PARTICLE FORMATION
AEROSOL NUCLEATION
NEUTRAL CLUSTER
BOREAL FOREST
SULFURIC-ACID
AIR
IONIZATION
NAIS
RECOMBINATION
114 Physical sciences
1172 Environmental sciences
Rights:


Files in this item

Total number of downloads: Loading...

Files Size Format View
ber21_207.pdf 726.1Kb PDF View/Open

This item appears in the following Collection(s)

Show full item record