Systematics of K and L x-ray satellite spectra V. Horvat and R. L. Watson Multiple inner-shell ionization of an atom in a heavy-ion collision and the vacancy rearrangement

ثبت نشده
چکیده

Multiple inner-shell ionization of an atom in a heavy-ion collision and the vacancy rearrangement that follows are fundamental processes that so far have not been adequately described theoretically. The only fundamental theory of multiple inner-shell ionization whose results are widely available is the geometrical model [1]. It predicts that in central collisions (i.e. collisions restricted to small impact parameters) the average fraction of vacancies produced in the shell having principal quantum number n is given by [1]

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

Molecular Orbital Effects in Near-symmetric Collisions of 10 A MeV Heavy Ions with Solid Targets

Cross sections for target atom K vacancy production have been measured recently, using solid targets of Cu, Mo, Ag, Sn, Sm, and Ta bombarded by 10 A MeV beams of H, Ne, Ar, Cr, Kr, Xe, and Bi [1]. It was found that the target K x-ray production cross section becomes enhanced as the target atomic number Z2 approaches the atomic number Z1 of the projectile. The purpose of the work presented here ...

متن کامل

Ultrafast charge rearrangement and nuclear dynamics upon inner-shell multiple ionization of small polyatomic molecules.

Ionization and fragmentation of methylselenol (CH(3)SeH) molecules by intense (>10(17) W/cm(2)) 5 fs x-ray pulses (ħω=2 keV) are studied by coincident ion momentum spectroscopy. We contrast the measured charge state distribution with data on atomic Kr, determine kinetic energies of resulting ionic fragments, and compare them to the outcome of a Coulomb explosion model. We find signatures of ult...

متن کامل

Relativistic calculations of x-ray emission following a Xe-Bi83+ collision

Experimental investigations aimed at the comprehensive study of various processes in low-energy heavy ion-atom collisions are anticipated at GSI and FAIR facilities (Darmstadt, Germany) [1, 2, 3] and require the corresponding theoretical calculations. In a recent experiment [4], the intensities of the post-collisional x-ray emissions have been resolved for collisions of Bi ions with Xe target a...

متن کامل

X-ray production by ion bombardment

2014 The available experimental and theoretical results on ion induced X-rays are briefly surveyed. From experimental data it may be concluded that the mechanism for inner shell excitation by heavy ion-atom collisions is different from that for proton-atom collisions. The latter are described successfully in Plane Wave Born Approximation (PWBA) and in classical Binary Encounter Approximation (B...

متن کامل

Deep inner-shell multiphoton ionization by intense x-ray free-electron laser pulses.

We have investigated multiphoton multiple ionization dynamics of xenon atoms using a new x-ray free-electron laser facility, SPring-8 Angstrom Compact free electron LAser (SACLA) in Japan, and identified that Xe(n+) with n up to 26 is produced at a photon energy of 5.5 keV. The observed high charge states (n≥24) are produced via five-photon absorption, evidencing the occurrence of multiphoton a...

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 2008