Single and double photoionization of Be and Mg
نویسندگان
چکیده
A new version of the time-dependent close-coupling method is used to calculate the single and double photoionization of the Be and Mg atoms. Total cross sections are calculated using an implicit time propagator with a core orthogonalization method on a variable radial mesh. The double to single photoionization cross section ratios are found to be in good agreement with experiment for both Be and Mg. (Some figures may appear in colour only in the online journal)
منابع مشابه
Signature of two-electron interference in angular resolved double photoionization of Mg.
The double photoionization of Mg has been studied experimentally and theoretically in a kinematic where the two photoelectrons equally share the excess energy. The observation of a symmetrized gerade amplitude, which strongly deviates from the Gaussian ansatz, is explained by a two-electron interference predicted theoretically, but never before observed experimentally. Similar to the Cooper min...
متن کاملStructural Analysis of Benzene via Double Photoionization
The double-to-single photoionization cross-section ratios of benzene (C6H6) have been obtained in the photon energy region between 37 and 180 eV. The measurements were carried out on the 6m-TGM (042) beamline using an ion time-of-flight spectrometer. In a previous experiment we have observed a modulation in the double-to-single photoionization ratio of C60, which could be used to determine the ...
متن کاملAbstract Submitted for the DAMOP11 Meeting of The American Physical Society Double Photoionization of Pyrrole, Furan, and Thiophene1 EMILY
Submitted for the DAMOP11 Meeting of The American Physical Society Double Photoionization of Pyrrole, Furan, and Thiophene1 EMILY MAKOUTZ2, Dept. of Physics, Univ. of Wisconsin–La Crosse, TIM HARTMAN, NARAYANA APPATHURAI, RALF WEHLITZ, Synchrotron Radiation Center, Univ. of Wisconsin–Madison — We have studied the double-to-single photoionization ratio for the aromatic molecules pyrrole, furan, ...
متن کاملA New Scaling Law for Double-photoionization Processes
We have measured the double-to-single photoionization ratio of atomic lithium and beryllium using the ion time-of-flight method. The photon beam of the PGM undulator beam line ionizes the vaporized target atoms. The ions created are extracted by a pulsed electric field across the interaction region and are detected by a Z-stack of micro-channel plates [1]. In the figure shown above, we compare ...
متن کاملDouble K-shell photoionization of low-Z atoms and He-like ions
We report on the investigation of the photon energy dependence of double 1s photoionization of light atoms and compare the cross sections for hollow atom and He-like ion production. Measurements of the Kα hypersatellite x-ray spectra of Mg, Al, and Si were carried out using the Fribourg high-resolution x-ray spectrometer installed at the ID21 and ID26 beam lines at the ESRF. The double-to-singl...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2013