Details

Autor(en) / Beteiligte

• BEIERSDORFER, P
• OSTERHELD, A. L
• CHEN, M. H
• HENDERSON, J. R
• KNAPP, D. A
• LEVINE, M. A
• MARRS, R. E
• REED, K. J
• SCHNEIDER, M. B
• VOGEL, D. A

Titel

Indirect X-ray line formation processes in highly charged barium

Ist Teil von

• Physical review letters, 1990-10, Vol.65 (16), p.1995-1998

Ort / Verlag

Ridge, NY: American Physical Society

Erscheinungsjahr

1990

Link zum Volltext

Quelle

American Physical Society Journals

Beschreibungen/Notizen

• We have studied indirect excitation processes contributing to the x-ray line emission of neonlike barium (Ba{sup 46+}) interacting with an electron beam. Techniques are presented which resolve the contributions due to electron capture by fluorinelike ions and inner-shell ionization of sodiumlike ions from contributions due to direct electron-impact excitation and radiative cascades. The strength of resonance excitation of the 2{ital p}--3{ital s} magnetic quadrupole line through intermediate levels 4{ital lnl}{prime} ({ital n}=5,6) is measured to equal {ital S}=(2.8{plus minus}0.8){times}10{sup {minus}19} cm{sup 2} eV.