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Search Publications by: Yuri Ralchenko (Fed)

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Displaying 76 - 100 of 105

Spectra of W 39+ -W 47+ in the 12 nm to 20 nm Region Observed With an EBIT Light Source

October 14, 2007
Author(s)
Yuri Ralchenko, Joseph Reader, Joshua M. Pomeroy, Joseph N. Tan, John D. Gillaspy
We observed spectra of highly ionized tungsten in the extreme ultraviolet with an electron beam ion trap (EBIT) and a grazing incidence spectrometer at the National Institute of Standards and Technology. Stages of ionization were distinguished by varying

Density Dependence of the Forbidden Lines Ni-Like Tungsten

June 14, 2007
Author(s)
Yuri Ralchenko
The magnetic-octupole (M3) and electric-quadrupole (E2) transitions between theground state $3d^{10}~^1S_0$ and the lowest excited $3d^94s$ $(5/2,1/2)$ J = 3and J = 2 states in the Ni-like tungsten are shown to exhibit a strongdependence on electron

Is There a High Energy Particle Population in the Quiet Solar Corona?

December 6, 2006
Author(s)
Yuri Ralchenko, Uri Feldman, G. A. Doschek
A study of spectra emitted by the quiet solar corona indicates that the majority of line intensities originating in low-lying levels are consistent with isothermal plasma of ~1.3 106 K. Nevertheless, a number of line intensities and in particular those

Large-Scale Calculation of Dielectronic Recombination Parameters for Mg-Like Fe

June 20, 2006
Author(s)
I Murakami, T Kato, D Kato, U I. Safronova, T E. Cowan, Yuri Ralchenko
Energy levels, radiative transition probabilities, and autoionization rates for $1s^22s^22p^63l'nl$ ($n$=3-12, $l \le n-1$) and $1s^22s^22p^64l'nl$ ($n$=4-7, $l \le n-1$) states in Mg-like iron (Fe$^14+}$) are calculated by the Hartree-Fock-Relativistic

NIST Atomic Spectra Database (2006)

January 1, 2006
Author(s)
Yuri Ralchenko, Jeffrey R. Fuhr, F -. Jou, William C. Martin, Larissa Podobedova, Joseph Reader, Jean E. Sansonetti, Wolfgang L. Wiese

NIST Atomic Spectra Database

January 1, 2005
Author(s)
Yuri Ralchenko, F -. Jou, Daniel E. Kelleher, Alexander Kramida, Arlene Musgrove, Joseph Reader, Wolfgang L. Wiese, Karen J. Olsen

Plasma Dynamics in Pulsed Strong Magnetic Fields

January 1, 2004
Author(s)
R Doron, R Arad, K Tsigutkin, D Osin, A Weingarten, A Starobinets, V. A. Bernshtam, E. Stambulchik, Yuri Ralchenko, Y Maron, A Fruchtman, A Fisher, J D. Huba, M Roth