James Radney

Publications

Simultaneous Transmission and Absorption Photometry of Carbon-Black Absorption from Drop-Cast Particle-Laden Filters

March 19, 2019

Author(s):

Cary Presser, Matthew Jordon, James G. Radney, Christopher D. Zangmeister, Ashot Nazarian

Simultaneous transmissivity and absorptivity measurements were carried out in the visible at a laser wavelength of 532 nm on drop-cast, carbon-black-laden...

Comparing Aerosol Refractive Indices Retrieved from Full Distribution and Size- and Mass- Selected Measurements

September 01, 2018

Author(s):

James G. Radney, Christopher D. Zangmeister

Refractive index retrievals (also termed inverse Mie methods or optical closure) have seen considerable use as a method to extract the refractive index of...

NIST Interlaboratory Study of Aerosol Absorption Measurements using Photoacoustic Spectroscopy

April 27, 2018

Author(s):

Christopher D. Zangmeister, James G. Radney

The National Institute of Standards and Technology coordinated an interlaboratory study for laboratories that use photoacoustic spectroscopy to measure and...

Measured In-situ Mass Absorption Spectra for Nine Forms of Highly-absorbing Carbonaceous Aerosol

April 23, 2018

Author(s):

Christopher D. Zangmeister, Rian You, Elizabeth M. Lunny, Arne Jacobson, Mitchio Okumura, Michael R. Zachariah, James G. Radney

Mass absorption coefficient spectra were measured between λ = 500 nm and 840 nm for nine forms of highly-absorbing carbonaceous aerosol: five samples...

Direct In-Situ Mass Specific Absorption Spectra of Biomass Burning Particles Generated from Smoldering Hard and Softwoods

April 28, 2017

Author(s):

Rian You, James G. Radney, Christopher D. Zangmeister, Michael R. Zachariah

Particles from smoldering biomass burning (BB) represent a major source of carbonaceous aerosol in the terrestrial atmosphere. In this study, mass specific...