Resonant-line overlap for photopumping and spoiling of x-ray lasing transitions in neonlike Fe XVII and Cu XX

Journal Article · Fri Apr 01 00:00:00 EST 1994 · Physical Review A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.49.3123· OSTI ID:5061922

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

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

High-precision measurements (25--175 ppm) have been performed of selected 2[ital p]-3[ital s] and 2[ital p]-4[ital d] transitions in neonlike Fe and Cu that are of possible use in resonant photopumping x-ray lasing experiments. A marginal resonance of 600 ppm is found for the 2[ital p]-4[ital d] transition in neonlike Fe with the 1[ital s]-2[ital p] transition in hydrogenic Ne. By contrast, an excellent resonance of 200 ppm is determined for photopumping of the 2[ital p]-4[ital d] transition in neonlike Cu with the 1[ital s]-2[ital p] transition in heliumlike Mg, suggesting that the Cu-Mg pair is a good candidate for resonant photopumping experiments. Moreover, the separation of the 2[ital p]-3[ital s] transition in neonlike Fe and the 1[ital s]-2[ital p] transition in heliumlike F is measured to assess the resonance for use in a scheme to spoil x-ray lasing. The overlap (2000 ppm), however, appears insufficient.

• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5061922
• Journal Information: Physical Review A; (United States), Vol. 49:4; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
COPPER IONS
ENERGY-LEVEL TRANSITIONS
IRON IONS
MULTICHARGED IONS
MAGNESIUM IONS
OPTICAL PUMPING
PHOTON-ION COLLISIONS
POPULATION INVERSION
RESONANCE
X-RAY LASERS
CHARGED PARTICLES
COLLISIONS
ION COLLISIONS
IONS
LASERS
PHOTON COLLISIONS
PUMPING
426002* - Engineering- Lasers & Masers- (1990-)