Experimental and theoretical investigation of plasma radiation Semiannual status report, Sep. 1969 - Feb. 1970
Stark broadening of argon and neon resonance lines
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Stark broadening of argon and neon resonance lines
Rotational excitation cross sections of nitrogen by neon impact
Cross section scattering and polarization data of 18 MeV protons from neon 20
Polarization of Lyman alpha radiation in proton collisions with helium, argon, and neon atoms
Helium-neon laser and power supply for spacecraft
Electron temperature dependence of molecular neon ions recombination with electrons using microwave afterglow/mass spectrometer, obtaining recombination coefficient
Line strength and radiative lifetimes for Ne II determined from spontaneous emission data obtained from CW neon laser discharge
Design for space qualified helium-neon laser
Measuring intermittent enhancement of blinking effect upon addition of neon to imaging gas in helium-tungsten field-ion microscope
Long-term performance tests of neon gas filled, high-temperature ceramic voltage-regulator tubes
Space electric rocket test thruster performance with xenon, krypton, argon, neon, nitrogen, helium, and carbon dioxide ion source gases and magnetic spectroscopy of ion emissions
Analysis of helium-neon and carbon dioxide laser beam propagation in atmospheric turbulence
Neon, argon, and helium density and flux distributions in lunar atmosphere
Microscopic coupled-channel analysis of proton inelastic scattering from neon and magnesium ions
Performance tests of electron bombardment ion thrustor, using xenon, krypton argon, neon, nitrogen, helium and carbon dioxide
Lunar atmospheric contributions from solar wind, meteoric volatilization, internal degassing and rocket gases, discussing day and night neon concentrations
Testing device measures simple and disjunctive reaction time of human subject to light stimuli. Tester consists of reaction key, logic card, panel mounted neon indicators, and interconnecting wiring. Device is used for determining reaction times of patients undergoing postoperative neurological therapy.
The stagnation-point convective heat transfer to an axisymmetric blunt body for arbitrary gases in chemical equilibrium was investigated. The gases considered were base gases of nitrogen, oxygen, hydrogen, helium, neon, argon, carbon dioxide, ammonia, and methane and 22 gas mixtures composed of the base gases. Enthalpies ranged from 2.3 to 116.2 MJ/kg, pressures ranged from 0.001 to 100 atmospheres, and the wall temperatures were 300 and 1111 K. A general equation for the stagnation-point convective heat transfer in base gases and gas mixtures was derived and is a function of the mass fraction, the molecular weight, and a transport parameter of the base gases. The relation compares well with present boundary-layer computer results and with other analytical and experimental results. In addition, the analysis verified that the convective heat transfer in gas mixtures can be determined from a summation relation involving the heat transfer coefficients of the base gases. The basic technique developed for the prediction of stagnation-point convective heating to an axisymmetric blunt body could be applied to other heat transfer problems.