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Wednesday, July 22, 2020 | History

3 edition of A photoionization study of OH and OD from 680⁰A to 950⁰A found in the catalog.

A photoionization study of OH and OD from 680⁰A to 950⁰A

A photoionization study of OH and OD from 680⁰A to 950⁰A

an analysis of the Rydberg series

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  • 15 Currently reading

Published by National Aeronautics and Space Administration, National Technical Information Service, distributor in [Washington, D.C, Springfield, Va .
Written in English

    Subjects:
  • Atomic excitations.,
  • Heavy water.,
  • Hydroxyl radicals.,
  • Ionic reactions.,
  • Photodissociation.,
  • Photoionization.,
  • Rydberg series.,
  • Spectrum analysis.,
  • Water.

  • Edition Notes

    StatementJ.N. Cutler, Z.X. He, and J.A.R. Samson.
    SeriesNASA contractor report -- NASA CR-196970.
    ContributionsHe, Z. X., Samson, James A. R., United States. National Aeronautics and Space Administration.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL15411665M

    Review from Practice Test study guide by KassieSeavy includes 27 questions covering vocabulary, terms and more. Quizlet flashcards, activities and games help you improve your grades. OH = 0 v OH = 1 v OH = 2 v OH = 3 v OH = 4 v OH = 5 v OH = 6 2ν 1 ν 1 3ν 1 ν 1 2ν 1 3ν Ex. 1: Near-infrared excitation of 2ν 1 overtone in HOONO will break it into OH and NO 2 Ex. 2: Visible excitation of 6ν 1 in HNO 3 will also break it into OH and NO 2 Such overtone dissociation is a very indirect process involving highly inefficient.

    PHOTOIONIZATION CROSS SECTIONS (Updates: Nahar)) The ab initio calculations are carried out in the close coupling approximation using the R-matrix method as employed in the Opacity Project, and the Iron Project.. The high-energy cross sections, including inner-shell ionization, are complemented by Relativistic Distorted Wave calculations using a Dirac-Fock treatment (Zhang ). dependent close-coupling equations were used by Parker et al () to study harmonic generation and double ionization of helium at a photon energy of eV. The time-dependent close-coupled equations are solved by discretization of all radial wavefunctions and operators on a two-dimensional lattice. For easy implementation on.

      The Stieltjes‐imaging method is applied to the spectrum of CH which is computed by SCF–MO–CI calculations on single excitation series. The calculations use basis sets of up to 50 Slater atomic orbitals. The continuum cross sections obtained are lower than the previous results of Walker and Kelly who used a perturbation theoretical approach. Our computations indicate strong Rydberg series.   The photoionization of atoms is still an emerging field with a foundation in laboratories and journals, yet much in the field is unknown. Photoionization is the phenomenon of an incident photon on a gaseous atom causing the ejection of an electron, and therefore, the atom becomes an ion. The photoelectric effect is a similar but broader term dealing with atoms in all forms: solid, liquid, gas.


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A photoionization study of OH and OD from 680⁰A to 950⁰A Download PDF EPUB FB2

A Photoionization Study of OH and OD from A_ to A.: An Analysis of the Rydberg Series. J.N. Cutler, Z.X. He and J.A.R. Samson 1 Department of Physics University of Nebraska-Lincoln Lincoln, NE (NASA-CR) A PHOTOIONIZATION STUDY OF OH ANO OO FROM A TO ANALYSIS OF THE RYDBERG.

Get this from a library. A photoionization study of OH and OD from °A to °A: an analysis of the Rydberg series. [J N Cutler; Z X He; James A R Samson. Joseph Berkowitz, in Atomic and Molecular Photoabsorption, Volume 1, This author has had numerous requests for absolute photoabsorption and photoionization cross sections of transient molecular species such as OH, NH n (n = 1, 2) and CH n (n = 1–3).

While some data are available in limited spectral regions, they are deemed insufficient for fruitful application of sum rules. G.K. Liu, in Encyclopedia of Materials: Science and Technology, Photoionization and Gated SHB. Selective photoionization that induces persistent hole burning in an inhomogeneous line often involves two sequential optical transitions.

In the first transition, a narrow band laser induces selective excitation at the frequency of the hole burning; in the second transition, a photon from. Cross section. Not every interaction between a photon and an atom, or molecule, will result in photoionization.

The probability of photoionization is related to the photoionization cross-section of the species, which depends on the energy of the photon (proportional to its wavenumber) and the species being considered. In the case of molecules, the photoionization cross-section can be estimated.

PID survey protocol. A systematic head-to-toe survey protocol was developed and pilot-tested for use by the study participants. The protocol was modified from a well established radiation survey protocol.

8 The protocol which was developed calls for the body of the victim to be divided into several segments (see Figure 1).In order to increase recall of the protocol each section was allotted.

Photo-ionization, the interaction of electromagnetic radiation with matter resulting in the dissociation of that matter into electrically charged particles.

The simplest example, the photoelectric effect (q.v.), occurs when light shines on a piece of metal, causing the ejection of electrons. photoionization detectors offer the combination of speed of response, ease of use and maintenance, small size, and ability to detect low levels, including most volatile organic compounds (voCs).

PIDs rely upon ionization as the basis of detection. When sampled gas absorbs energy from. Photoionization Characteristics of Selected Compounds Molar Sensitivity Relative Ionization to Benzene (= ) Compound Alternate Alternate Potential with Different Lamps Name Name Name eV eV eV eV 2, 2-dimethyl propane Dimethyl disulfide N, N Dimethyl formamide 3, 5-dimethylheptanone the end of this book.

Following are examples of gases detectable using different lamps: 1. Gases detected by eV lamp such as benzene, aromatic compounds, amines. Gases detected between eV and eV such as ammonia, ethanol, acetone. Gases detected between eV and eV such as acetylene, formaldehyde, methanol.

Photoionization Study of Cl II, Ar II and Kr II Ions Using the Modified Atomic Orbital Theory Article (PDF Available) in Journal of Modern Physics 09(14) January with 30 Reads. CF3OH and OH, suggesting that the O–H bond energy in CF3OH must be comparable to that in water, i.e., D~CF3O–H. kcal/mol.

This surprisingly high value seems to be corroborated by a number of theoretical studies.7,12–18 However, as Benson19 pointed out, there is a significant volume of experimental data20 which, when com.

Photoionization of the I + ion in the energy range of the 4d giant resonance has been studied using our recently developed open-shell random phase approximation with exchange (RPAE) method. Photoionization cross sections for the I + 4d– f, p, 5s– p, 5p– s, d have been obtained for each term of the ground configuration.

Calculations include all the intra-shell and inter-shell coupling. Introduction to Photoionization. A Photo-Ionization Detector (PID) measures real-time concentrations of organic and inorganic vapors in low levels from parts-per-billion (ppb) up to 10, parts-per-million (ppm).A PID is a very sensitive instrument used in a wide variety of applications such as.

Hazardous waste sites; Clean-up of spills; Protecting workers from toxic vapors. A photoionization mode is a mode of interaction between a laser beam and matter involving photoionization. General considerations. Laser light affects materials of all types through fundamental processes such as excitation, ionization, and dissociation of atoms and.

CRF researchers have pioneered the use of multiplexed mass spectrometry (simultaneously detecting many masses) in combination with photoionization by tunable synchrotron radiation—which provides isomeric specificity through the photoionization spectroscopy—as a powerful tool for investigating elementary reaction kinetics and the chemistry of low-pressure flames.

INTRODUCTION. The photoactive yellow protein (PYP) is a small, amino acid-containing, water-soluble protein found in the bacterium Halorhodospira halophila and is responsible for triggering the negative phototaxis response of the organism to blue light (Sprenger et al., ; Cusanovich and Meyer, ; Hellingwerf et al., ).PYP contains an intrinsic chromophore, p-coumaric acid, which.

Photoionization Detector FSOP (Febru ) Ohio EPA Division of Environmental Response and Revitalization Scope and Applicability The photoionization detector (PID) is a portable instrument used to detect the real-time presence and relative concentration of certain ionizable compounds in gaseous or vapor states.

Using photoionization detectors to measure toxic VOCs AP_10_10_13 Tel: () or () Fax: () E-mail: [email protected] Website: VOCs present multiple potential threats in the workplace environment. Many VOC vapors are heavier than air, and can. PHOTOEXCITATION AND PHOTOIONIZATION OF THE ARGON ATOM AND THE HYDROGEN BROMIDE MOLECULE Ximao Feng, Ph.D.

Western Michigan University, Interaction between synchrotron radiation with inner-shell electrons is a fundamental method to study the structure and dynamics of atoms and molecules. Correlated photoionization processes in H2 M.

S. Pindzola and F. Robicheaux Department of Physics, Auburn University, Auburn, Alabama ~Received 16 April ! Correlated photoionization processes in H2 are calculated by a numerical solution of the time-dependent Schro¨dinger equation on a partitioned lattice.Toxic Vapor Analyzers utilize both Flame Ionization Detector (FID) and Photoionization Detector (PID) technology to monitor potentially hazardous organic/inorganic vapors for the gas survey industry.

(We previously wroted about FID,) PID consists of an ultraviolet (UV) lamp of a specific energy and an ionization chamber (see Figure 1–2). Compounds passing through the chamber are excited.r: Peterson, K.

I. en_US: r: Dao, P. D. en_US: r: Farley, R. W. en_US: r: Castleman, A. W., Jr. en_US: ioned: