Post - Prior discrepancies in CDW - EIS calculations for ion impact ionization fully differential cross sections

نویسندگان

  • M F Ciappina
  • W R Cravero
چکیده

In this work we present fully differential cross sections (FDCSs) calculations using post and prior version of CDW–EIS theory for helium single ionization by 100 MeV C 6+ amu −1 and 3.6 MeV amu −1 Au 24+ and Au 53+ ions. We performed our calculations for different momentum transfer and ejected electron energies. The influence of internuclear potential on the ejected electron spectra is taken into account in all cases. We compare our calculations with absolute experimental measurements. It is shown that prior version calculations give better agreement with experiments in almost all studied cases.

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

Doubly differential cross sections for the proton- impact double ionization of helium

A time-dependent close-coupling approach is used to investigate 6 MeV proton-impact double ionization of helium. We extract doubly differential (in the emission angles of both outgoing electrons) cross sections for comparison with recent experimental measurements. Good qualitative agreement is found between our calculations and the measurements. We also present differential cross sections for c...

متن کامل

Comparison of Theoretical and Absolute Experimental Fully - Differential Cross Sections for Ion - Atom Impact - Ionization

We report fully differential cross section (FDCS) calculations and absolute measurements for ion-atom impact ionization. Using the COLTRIMS (cold target recoil ion momentum spectroscopy) method, we have obtained absolute FDCS both in the scattering plane as well as out of the scattering plane for 100 MeV/amu C ionization of helium. FDCS results are presented for different projectile scattering ...

متن کامل

Theoretical ionization and capture cross sections for DNA nucleobases impacted by light ions.

PURPOSE Although DNA lesions are considered of prime importance for describing the post-irradiation cellular survival, they still remain rarely studied on both experimental and theoretical sides. Under these conditions, we here propose different theoretical models for predicting the single ionization and single capture total cross sections for DNA bases impacted by protons. MATERIAL AND METHO...

متن کامل

Strong double K–K transfer channel in near symmetric collision of Si + Ar at intermediate velocity range

We present a combined study of single and double K–K electron transfer cross sections along with the single and double K-shell ionization of Ar induced by Si projectiles in the energy range 0.9–4.0 MeV u−1. The charge-state dependence of the normal and hypersatellite x-rays was used to derive the cross sections for the oneand two-electron processes, respectively. The enhancement in the fluoresc...

متن کامل

Computer Simulations in Ion-Atom Collisions

Computer simulation has become increasingly important over the last 50 years for modelling and solving different ideas within science. One area in science that computer simulation and its applications is extensively used is Ion-Atom collisions. There are many different aspects to these collisions but this poster will concentrate on measuring the Triply Differential Cross Section (TDCS) for sing...

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 2005