Download or read book Preparation of Anhydrous Deuterium Fluoride by Direct Combination of the Elements written by S. T. Benton and published by . This book was released on 1964 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Infrared Spectrum and Molecular Constants of Deuterium Fluoride written by Hoyt McCoy Kaylor and published by . This book was released on 1949 with total page 41 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Hydrogen Fluoride Polymer Spectrum Hexamer and Tetramer written by D. F. Smith and published by . This book was released on 1957 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hydrogen Fluoride and Deuterium Fluoride Lasers written by and published by . This book was released on 1979 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Thermal Conductivities of Ordinary and Deuterated Gaseous Hydrogen Fluoride and Their Equimolar Mixture written by Charles E. Baker and published by . This book was released on 1967 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Vibrational Matrix Elements and Dipole Moment Function of Hydrogen Fluoride and Deuterium Fluoride by Overtone Emission Spectroscopy written by Richard Nicholas Sileo and published by . This book was released on 1974 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Hydrogen Fluoride Deuterium Fluoride Laser at the Naval Postgraduate School written by William Ted Funk and published by . This book was released on 1977 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt: A small scale hydrogen fluoride (HF) or deuterium fluoride (DF) laser was constructed for the Atmospheric Optical Propagation Program at the Naval Postgraduate School. The laser, with almost forty individually selectable wavelengths between 2.5 and 4.1 micrometers, will prove to be a valuable instrument for the continued studies of laser propagation. In the HF mode, a multiline power out of seven watts was acheived with a confocal cavity arrangement. In the single-line HF mode, fifteen separate wavelengths were distinguished. Three watts of multiline power was achieved in the DF mode while eighteen separate single-line wavelengths were obtained including 160 milliwatts at 3.8007 micrometers, the P2(8) transition. This wavelength is of particular interest to the Navy because of its excellent propagation characteristics in the marine boundary layer. (Author).

Download or read book Vibrational Excitation of Deuterium Fluoride and Hydrogen Fluoride by Atomic and Diatomic Species written by Jay A. Blauer and published by . This book was released on 1971 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: The vibrational excitations of HF and DF and the energy transfer efficiencies for various collision partners were investigated over the temperature range of 1400K to 4100K. The extent of excitation was determined as a function of time by continuously monitoring the infrared emission intensity at the center of the 1-0 vibration-rotation band of the molecule. Collisional efficiencies of HF, N2, O2, F, Cl, and DF in relaxing HF and of DF, HF, and N2 in relaxing DF are reported. A comparison of relaxation data for pure HF taken at elevated temperatures with data currently available from studies near room temperature suggests that long-range attractive forces are, mechanistically, of major importance in the relaxation process. The very high efficiency of atomic chlorine in relaxing HF is discussed in terms of the previous result for atomic fluorine. (Author).

Download or read book Low Temperature Deuterium Fluoride Vibrational Energy Transfer Kinetics written by J. K. Hancock and published by . This book was released on 1976 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt: The development of high-energy DF chemical lasers at operational temperatures below 300 K has prompted the need for detailed kinetic studies of DF in this low-temperature regime. The purpose of this memorandum is to report the investigation of DF relaxation measurements at low temperatures using the laser excited vibrational fluorescence technique. The authors have extensively studied the DF(v=1) self-relaxation rate and the HF(v=1) quenching rate by DF at: 198, 209, 232, 264 and 296 K. In addition to the above measurements, upper limits have been established to the DF(v=1) quenching rate in the presence of argon at each temperature.

Download or read book Hydrogen Fluoride and Deuterium Fluoride Lasers written by United States. National Technical Information Service and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mechanisms of Energy Transfer in Deuterium Fluoride Systems written by Roger L. Wilkins and published by . This book was released on 1978 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: A three-dimensional trajectory study has been employed to determine temperature-dependent rate coefficients for the important energy-transfer and deactivation processes that occur in DF(v1) + DF(v2) collisions. From this study, it was predicted that the v to v energy-transfer processes occur by means of delta v = + or - 1 transitions and that the rate coefficients for the v to v processes DF(v1 = 1) + DF(v2) to DF(v1' = 0) + DF(v2' = v2 + 1) with v2 = 1 through 5, respectively, decrease with increasing vibrational quantum number v.

Download or read book The Rates of Relaxation in the Upper Vibrational Levels of Hydrogen Fluoride and Deuterium Fluoride written by Yolanda Dawn Jones and published by . This book was released on 1981 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Measurement of the deuterium concentration in water samples using a CW chemical deuterium fluoride laser written by Martin Trautmann and published by . This book was released on 1979 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Measurement of the Deuterium Concentration in Water Samples Using a CW Chemical Deuterium Fluoride Laser written by M. Trautmann and published by . This book was released on 1979 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Absorption of Deuterium Fluoride Laser Radiation by the Atmosphere written by Frank Schriver Mills and published by . This book was released on 1975 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt: Absorption of deuterium fluoride (DF) laser radiation by atmospheric gases was measured for five absorbers and 8 laser lines using a single frequency, pulsed DF laser and a large multipass absorption cell. N2O, CH4, C2O, HDO and H2O absorption was investigated for the 2-1 P(6), P(7), P(8), P(10), and P(11) lines and the 3-2 P(6), P(7), and P(8) lines of the DF laser. For the mid-latitude summer sea level atmospheric model (14.3 torr H20, 1.6 ppm CH4, 0.28 ppm N2O, temperature 296K, total pressure 760 torr) the total molecular absorption coefficients are between 0.318 per km and 0.116 per km corresponding to a transmittance over a 10 km path of from 31 to 73 percent. Assuming the mid-latitude summer model atmosphere, the water vapor continuum absorption coefficient for the eight lines is approximately 0.02 per km. The measured HDO absorption coefficients vary from 0.006 per km to 0.095 per km for the lines studied and the N2O absorption coefficients vary from .002 per km to 0.45 per km. The CH4 absorption coefficients were found to be on the order of 0.0001 or 0.0001 per km. The accuracy of the measured absorption coefficients is + or -5%. Measurements of H2O absorption at 24 C with 14.3 torr H2O and 760 torr total pressure confirm the water continuum absorption coefficients obtained by extrapolating the high temperature measurements.

Download or read book Laser Induced Chemical Reaction written by Robert Shiu Fuh Chang and published by . This book was released on 1976 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Rotational Energy Transfer in Highly Vibrationally Excited Hydrogen Fluoride and Deuterium Fluoride written by F. Fleming Crim and published by . This book was released on 1983 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: Overtone vibration-laser double resonance measurements have provided new data on vibrational and rotational relaxation in HF(v = 2). These experiments determine the magnitudes of the total vibrational relaxation rate constants for HF(v = 1 and 2) as well as their temperature dependences. Rotational relaxation data come from these measurements as well. The temporal evolution of individual rotational states observed in the double resonance studies provides level-to-level energy transfer rate constants when analyzed using an iterative fitting scheme which incorporates scaling relations among the rate constants.