Measurement of line overlap for resonant photopumping of transitions in neonlike ions by nickel-like ions

Journal Article · Mon Feb 01 04:00:00 EST 1993 · Physical Review A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.47.1403· OSTI ID:6748838

Elliott, S; Beiersdorfer, P; Nilsen, J ^[1]

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1. University of California, Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)

A measurement is made of the 3[ital d]-4[ital f] transition energies in the Ni-like ions Re[sup 47+], Ir[sup 49+], Pt[sup 50+], Au[sup 51+], and Bi[sup 55+] and the 2[ital p]-4[ital d] transition energies in the Ne-like ions Br[sup 25+], Kr[sup 26+], Rb[sup 27+], and Y[sup 29+] using the Livermore electron-beam ion trap. The ions studied are candidates for an x-ray laser scheme based on resonant photopumping which predicts lasing among the 3[ital p]-3[ital s] transitions in a Ne-like ion. The results of the measurements are compared to multiconfiguration Dirac-Fock calculations and systematic differences are found. The best resonance is found for the Pt-Rb pair at 2512 eV, whose energies differ by 0.4[plus minus]0.1 eV, that is, by only 160 ppm.

• OSTI ID: 6748838
• Journal Information: Physical Review A; (United States), Journal Name: Physical Review A; (United States) Vol. 47:2; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
426002 -- Engineering-- Lasers & Masers-- (1990-)
664200* -- Spectra of Atoms & Molecules & their Interactions with Photons-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
BISMUTH IONS
BROMINE IONS
CHARGED PARTICLES
ENERGY-LEVEL TRANSITIONS
GOLD IONS
IONS
IRIDIUM IONS
KRYPTON IONS
LASERS
MULTICHARGED IONS
OPTICAL PUMPING
PLATINUM IONS
PUMPING
RHENIUM IONS
RUBIDIUM IONS
X-RAY LASERS
YTTRIUM IONS