Note: A simple detection method for helium droplet spectroscopy experiments.
Helium droplet methods are currently established as a premier experimental technique for the production and spectroscopic study of novel clusters and complexes. Unfortunately, some of the essential equipment required to perform the experiments, such as the detector used to monitor photon-induced depletion of the helium droplet beam, can be relatively large, complex, and expensive. Most often this detector is a quadrupole mass spectrometer (QMS). In this report, we describe the development and evaluation of an extremely simple, straightforward, small, and inexpensive droplet beam detector for use in helium droplet spectroscopy experiments and compare its performance to that of a QMS by recording the infrared spectra of helium droplets doped with either13CO2or CD4.
U.S. Food and Drug Administration, Division of Pharmaceutical Analysis, St. Louis, Missouri 63110, USA.
Brandon J
BJ
Thomas
Energy Technology and Materials Division, University of Dayton Research Institute, Dayton, Ohio 45469, USA.
Barbara A
BA
Harruff-Miller
U.S. Air Force Research Laboratory, Aerospace Systems Directorate, Wright-Patterson AFB, Ohio 45433, USA.
William K
WK
Lewis