Recombination of W19+ ions with electrons: Absolute rate coefficients from a storage-ring experiment and from theoretical calculations

نویسندگان

  • N. R. Badnell
  • K. Spruck
  • C. Krantz
  • O. Novotný
  • A. Becker
  • D. Bernhardt
  • M. Grieser
  • M. Hahn
  • R. Repnow
  • D. W. Savin
  • A. Wolf
  • A. Müller
  • S. Schippers
چکیده

N. R. Badnell,1,* K. Spruck,2,3 C. Krantz,3 O. Novotný,4 A. Becker,3 D. Bernhardt,2 M. Grieser,3 M. Hahn,4 R. Repnow,3 D. W. Savin,4 A. Wolf,3 A. Müller,2 and S. Schippers2,5 1Department of Physics, University of Strathclyde, Glasgow G4 0NG, United Kingdom 2Institut für Atomund Molekülphysik, Justus-Liebig-Universität Gießen, Leihgesterner Weg 217, 35392 Giessen, Germany 3Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany 4Columbia Astrophysics Laboratory, Columbia University, 550 West 120th Street, New York, New York 10027, USA 5I. Physikalisches Institut, Justus-Liebig-Universität Gießen, Heinrich-Buff-Ring 16, 35392 Giessen, Germany (Received 16 March 2016; published 9 May 2016)

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Dielectronic recombination of xenonlike tungsten ions

Dielectronic recombination (DR) of xenonlike W20+ forming W19+ has been studied experimentally at a heavy-ion storage ring. A merged-beams method has been employed for obtaining absolute rate coefficients for electron-ion recombination in the collision-energy range 0–140 eV. The measured rate coefficient is dominated by strong DR resonances even at the lowest experimental energies. At plasma te...

متن کامل

Recombination of W18+ ions with electrons: Absolute rate coefficients from a storage-ring experiment and from theoretical calculations

K. Spruck,1 N. R. Badnell,2 C. Krantz,3 O. Novotný,4 A. Becker,3 D. Bernhardt,1 M. Grieser,3 M. Hahn,4 R. Repnow,3 D. W. Savin,4 A. Wolf,3 A. Müller,1 and S. Schippers1,* 1Institut für Atomund Molekülphysik, Justus-Liebig-Universität Giessen, Leihgesterner Weg 217, 35392 Giessen, Germany 3Department of Physics, University of Strathclyde, 107 Rottenrow, Glasgow G4 0NG, United Kingdom 4Max-Planck...

متن کامل

Photorecombination and Photoionization Experiments at Heavy-Ion Storage-Rings and Synchrotron-Light Sources

Recent experimental work on the photorecombination and the photoionization of astrophysically relevant atomic ions employing the merged-beams technique at heavy-ion storage-rings and synchrotron-light sources, respectively, is summarized. The resulting absolute photoionization cross sections and recombination rate coefficients benchmark corresponding theoretical calculations and are needed for ...

متن کامل

Recombination rate coefficients for astrophysical applications from storage - ring experiments

The basic approach for measuring electron-ion recombina-tion rate coefficients in merged-beams electron-ion collision experiments at heavy-ion storage rings is outlined. As an example experimental results for the low temperature recombination of C iv ions are compared with the recommended theoretical rate coefficient by Mazzotta et al. The latter deviates by factors of up to 5 from the experime...

متن کامل

Absolute rate coefficients for the recombination of open f - shell tungsten ions

We have carried out direct measurements of the absolute recombination rate coefficients of four charge states of tungsten in the range from W to W in a heavy ion storage ring. We find that the rich atomic fine structure of the open f -shell leads to very high resonant enhancement of the recombination rate at energies below ∼50 eV. Even in the higher energy domain relevant to fusion plasma this ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2016