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Search Publications by: Joshua M. Pomeroy (Fed)

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Displaying 51 - 70 of 70

Accurate Modeling of Benchmark X-ray Spectra from Highly-Charged Ions of Tungsten

October 26, 2006
Author(s)
Y Ralchenko, Joseph N. Tan, John D. Gillaspy, Joshua M. Pomeroy, E Silver
We present detailed collisional-radiative modeling for the benchmark x-ray spectrum of highly-charged tungsten ions in the range between 3 \AA \ and 10 \AA produced in an Electron Beam Ion Trap (EBIT) with a beam energy of 4.08 keV. Remarkably good

Critical Nucleus Phase Diagram for the Cu(100) Surface

June 1, 2006
Author(s)
Joshua M. Pomeroy, Joel D. Brock
An experimental exploration of island nucleation dynamics during epitaxial film growth on the Cu(100) surface is presented that connects previous results from other groups at low temperatures with the room temperature regime. The steady-state balance of

Low Jitter Metal Vapor Vacuum Arc Ion Source for EBIT Injections

June 27, 2005
Author(s)
G Holland, Craig N. Boyer, J Seely, Joseph N. Tan, Joshua M. Pomeroy, John D. Gillaspy
A metal vapor vacuum arc (MeVVA) ion source having eight different cathodes that are individually selectable via the control electronics and having low trigger jitter (200 ns) is described. The arc plasma is produced by means of a 26 kV, 125 A, 30 s pulse