Zobrazeno 1 - 10
of 59
pro vyhledávání: '"Larry V. Knight"'
Publikováno v:
Quantum Electronics. 33:3-6
The results of investigation of a capillary discharge plasma, used as a source of intense VUV radiation and soft X-rays, are presented. The plasma was generated during the discharge of low-inductance condensers in a gas-filled ceramic capillary. Inte
Publikováno v:
Review of Scientific Instruments. 73:3458-3463
A compact focusing crystal spectrometer based on the von Hamos scheme is described. Cylindrically curved mica and graphite crystals with a radius of curvature of R=20 mm are used in the spectrometer. A front illuminated charge-coupled device (CCD) li
Publikováno v:
Quantum Electronics. 31:683-688
Several efficient laser transitions in Ni-like xenon in the 13 — 14-nm range are predicted on the basis of atomic kinetic calculations of the gains. The time characteristics of the gain g(τ) as functions of the electron density, temperature, and t
Autor:
P. W. Moody, S. Cornaby, Hans K. Pew, D C Turner, A. Stradling, T. Hughes, A. Reyes-Mena, Larry V. Knight
Publikováno v:
Measurement Science and Technology. 12:676-683
A breadboard setup constructed at MOXTEK, Inc., is capable of capturing both x-ray diffraction (XRD) and x-ray fluorescence (XRF) information simultaneously using a charge-coupled device (CCD) as the x-ray detector. This preliminary setup will lead t
Publikováno v:
Physica Scripta. 53:653-667
This is a theoretical study of argon plasma under conditions, where Ne- and Na-like ionization stages are dominant. Balance equations are generalized to treat 37 3l states of Ne-like ion and 37 adjacent series of Rydberg states of Na-like ion simulta
Publikováno v:
Journal of Raman Spectroscopy. 26:1039-1043
A constrained non-linear deconvolution method was used to analyse the Raman spectrum of amorphous carbon. The method was tested by applying it to a model spectrum. Before the deconvolution the observed Raman spectrum was smoothed by a least-squares c
Publikováno v:
Physics Letters A. 206:89-95
It is shown that the calculation of atomic constants by some versions of the multi-configurational method, or its relativistic generalizations, violates the principles of a consistent theory based upon the quantum electrodynamic (QED) approach. The c
Publikováno v:
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 12:2581-2585
We have fabricated arrays of silicon field emitters using semiconductor lithography techniques. The density of the tips was 105/cm2. The maximum current that can be extracted from each emitter is limited by resistive heating. We have investigated how
Autor:
Larry V. Knight
Publikováno v:
Journal of X-ray science and technology. 4(2)
Publikováno v:
Nanostructured Materials. 3:419-424
We have produced arrays of 10,000 sharp p-type silicon points using an etch plus oxidation method. These points were used as electron emitters. No high vacuum cesiation or high temperature cleaning was needed to observe the electron emission. These a