Accession Number : ADA316045

Title :   (ASSERT) Collisions of Atmospheric Gas Molecules.

Descriptive Note : Final rept. 1 Aug 93-31 Jul 96,

Corporate Author : WISCONSIN UNIV-MADISON DEPT OF PHYSICS

PDF Url : ADA316045

Report Date : 30 SEP 1996

Pagination or Media Count : 2

Abstract : The absolute electron-impact optical emission cross sections of numerous vibrational bands of the second positive band system of the nitrogen molecule have been measured for electron impact energy from threshold up to 600 eV. From the optical data the apparent electron-impact excitation cross sections for five vibrational levels of the C3Pi sub u electronic state of the nitrogen molecule have been determined. We have constructed a new apparatus for measuring the electron-impact optical cross sections for infrared emissions using a Fourier Transform spectrometer for optical detection. This apparatus allows us to study many important infrared emissions which could not be detected previously by our photomultiplier optical detection systems.

Descriptors :   *MOLECULES, *GASES, *COLLISIONS, *ATMOSPHERIC CHEMISTRY, FOURIER TRANSFORMATION, EMISSION, OPTICAL EQUIPMENT, VIBRATION, OPTICAL DETECTION, OPTICAL DATA, NITROGEN, ELECTRON ENERGY, OPTICAL CROSS SECTIONS, ELECTRONIC STATES, INFRARED RADIATION, PHOTOMULTIPLIER TUBES, FOURIER SPECTROMETERS, ELECTRON NUCLEAR CROSS SECTIONS.

Subject Categories : Inorganic Chemistry
      Atmospheric Physics
      Physical Chemistry
      Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE