Polarization and pressure dependence of 2p-1s transitions in He-like and Li-like neon recoil ions

Journal Article · Sun Feb 15 04:00:00 EST 1987 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.35.1510· OSTI ID:6011452

Watson, R L; Palinkas, J; Pedrazzini, G J; Bandong, B; Can, C; Church, D A; Kenefick, R A

The pressure dependences of 2p-1s transitions in He-like and Li-like neon recoil ions produced in collisions with 1.4-MeV/amu Ar ions were studied for the purpose of assessing effects of polarization and nonstatistical population mechanisms on the relative intensities of prompt and metastable lines. A Johansson-type curved-crystal spectrometer was employed as an x-ray polarimeter by taking spectra with the plane of the focal circle oriented both parallel and perpendicular to the Ar-ion beam. The data indicate that the He-like /sup 1/P and /sup 3/P lines are only slightly polarized and that the intensity ratio I( /sup 1/P)/I( /sup 3/P) is not a linear function of pressure. Both of these results appear to be a direct consequence of serious contamination of the spectral region of interest by unresolved spectator-electron transitions.

• Research Organization: Cyclotron Institute and Department of Chemistry, Texas AandM University, College Station, Texas 77843
• OSTI ID: 6011452
• Journal Information: Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 35:4; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
ARGON IONS
CHARGED PARTICLES
COLLISIONS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
ION COLLISIONS
ION-ION COLLISIONS
IONS
MEV RANGE
MEV RANGE 10-100
NEON IONS
POLARIZATION
PRESSURE DEPENDENCE
RECOILS