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  • 1
    Electronic Resource
    Electronic Resource
    The electron affinity of platinum (1993)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 98 (1993), S. 5104-5105 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The electron affinity of platinum has been measured to be 17 125(9) cm−1. A pulsed dye laser beam perpendicular to an ion beam photodetached the Pt−. The relative cross section near threshold was measured by detecting the fast neutrals. The threshold was determined by fitting the cross section to the Wigner law.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.464935
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  • 2
    Electronic Resource
    Electronic Resource
    A radiometric investigation of low-pressure rf sulfur discharges (1996)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 79 (1996), S. 7523-7528 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: This investigation focuses on low-pressure S2 molecular rf discharges for use as diffuse radiators. Cylindrical fused silica S2–Ar and S2–Ne lamps have been tested at 13.56 MHz and the absolute radiative efficiencies have been measured. The radiation is emitted primarily between 2800 and 3500 A(ring). The UV radiative efficiencies were studied as a function of input power, buffer gas pressure, discharge radius, and applied external cooling. The maximum observed efficiency for a low power density, diffuse rf discharge is 7%. The measured UV efficiencies of the 13.56 MHz discharges are somewhat lower than those of low-pressure S2–Ar dc discharges. A reentrant lamp design has been tested as well and no improvements in efficiency were observed. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.362424
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  • 3
    Electronic Resource
    Electronic Resource
    A radiometric and electrical characterization of low pressure dc positive column sulfur discharges (1996)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 79 (1996), S. 86-92 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The dc positive column sulfur (S) and S–Ar discharges have been studied over a wide range of operating conditions. Even though the equilibrium partial pressure of S2 is low in the 50 °C–200 °C temperature range investigated here, the primary radiating molecule in these discharges is S2. Electronic collisions dissociate S8 to produce the radiating S2 molecules at densities far in excess of the equilibrium density. The majority of the spectral emission occurs in the 2800–3500 A(ring) range. The spectrum observed from these discharges corresponds nicely to that obtained from dc discharges at much higher temperatures. The radiation output has been studied as a function of input power, wall temperature, buffer gas pressure, discharge radius, and cold spot temperature. The absolute efficiency of the discharge in generating near-ultraviolet radiation has been measured and the results are presented for many areas of the multidimensional parameter space. The maximum efficiency of ultraviolet and visible emission obtained was approximately 17%. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.360794
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  • 4
    Electronic Resource
    Electronic Resource
    Investigations of the 147 nm radiative efficiency of Xe surface wave discharges (1997)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 81 (1997), S. 1087-1092 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The radiative efficiency of the 147 nm resonance radiation of Xe excited in a low pressure, high-frequency surface wave sustained plasma has been investigated. The radiative UV power has been obtained from optical absorption spectroscopic measurements of the Xe resonance level population and from Monte Carlo calculations of the effective decay rate of this level. Precise measurements of the rf power absorbed by the plasma enable the determination of the absolute vacuum ultraviolet discharge efficiency for the Xe surface wave discharge. Results show efficiencies up to more than 80(±11)% . © 1997 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.363851
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  • 5
    Electronic Resource
    Electronic Resource
    On the formation of H(n=3)dipole moments in collisions of protons on rare gas atoms (1995)
    Springer
    The European physical journal 35 (1995), S. 231-233 
    Details
    ISSN: 1434-6079
    Keywords: 34.50.Fa ; 34.70.+e
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We have investigated proton-rare gas atom charge transfer collisions in the energy range from 20 to 100 keV and have extracted the electrostatic dipole moments (EDMs) of the collisionally produced H(n=3) atoms from the optical data. The results show that the EDM decreases with increasing atomic number of the rare gas atoms. Our data provide experimental evidence that post-collisional electrostatic forces do not influence the formation of the EDMs.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01745524
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