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Instrument

PALMS
Particle Analysis By Laser Mass Spectrometry

The Particle Analysis by Laser Mass Spectrometry (PALMS) is a laser ionization mass spectrometer owned and operated by NOAA. PALMS provides in situ measurements of aerosol particles and their chemical composition by using a pulse from a UV laser (193 nm) to generate ions. These ions are then analyzed with a time-of-flight mass spectrometer to provide the mass spectrum of each particle which can be used to classify the individual aerosol particles. PALMS has an aerosol size range of 0.2 to 3 microns and has a typical data rate around 1 to 10 Hz. It can be utilized for either airborne or laboratory measurements of aerosols.

PALMS instrument in the lab
NASA's DC-8 flying laboratory passes Antarctica's tallest peak, Mount Vinson, on Oct. 22, 2012, during a flight over the continent to measure changes in the massive ice sheet and sea ice. Credit: NASA/Michael Studinger (Photography courtesy NASA Images)

Instrument Details

Spectrometer/Radiometer
Earth Science > Atmosphere > Aerosols > Chemical Composition
Earth Science > Atmosphere > Aerosols
Lower Stratosphere, Troposphere
1-10 Hz
N/A
564 THz, 1553 THz
Currently unavailble
ACCENT

Atmospheric Chemistry of Combustion Emissions Near the Tropopause

1999—2000
Southern United States
view all deployment dates
3 Deployments
· 0 Data Products

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External Link10.3334/ORNLDAAC/1581
External Link10.3334/ORNLDAAC/1618
External Link10.3334/ORNLDAAC/1684