Articles you may be interested inComparative electron temperature measurements of Thomson scattering and electron cyclotron emission diagnostics in TCABR plasmasa) Rev. Sci. Instrum. 81, 10D529 (2010); 10.1063/1.3494379 Measurement of electron temperature and density in an argon microdischarge by laser Thomson scattering Appl.A comparison of spectroscopic and Thomson scattering measurements of electron densities and temperatures in a transient expanding plasma flow Electron temperature T, and density n, in the source region of an electron cyclotron resonance discharge have been measured by incoherent Thomson scattering of the beam from a 0.5 J yttrium aluminum garnet laser. This is the first experiment in which this technique, routinely used on fusion plasmas, has been applied to a processing plasma. Measurements were made in an argon discharge at pressures from 0.3 to 2 mTorr and microwave powers from 250 to 1000 W. Velocity distributions were measured both parallel and perpendicular to the magnetic field and a slight anisotropy of electron temperature was observed for low-pressure discharges. Temperatures in the range of l-5 eV and densities in the range of 2-10x 10" rnd3 were measured. T, and n, were found to strongly depend on pressure but only weakly on the input power and discharge magnetic field. No deviations from a Maxwellian velocity distribution were observed.
Enthalpies of mixing of some α,ω-alkanediol monoalkyl ether(ADAE)+heptane systems were measured at 298 K, and limiting partial molar excess enthalpies of ADAE at infinite dilution, x→0lim HE⁄x(1−x), were estimated. The ADAE used were CH3O(CH2)nOH (n=2, 3, 4), C2H5O(CH2)nOH (n=2, 3), C3H7O(CH2)nOH (n=2, 3), and C4H9O(CH2)2OH. The values of x→0lim HE⁄x(1−x), obtained were compared with those of normal alcohols, and discussed in the light of the intramolecular hydrogen bond contained in ADAE. The enthalpic contribution due to the intramolecular hydrogen bond in ADAE is estimated to be about 10 kJ mol−1.
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