LEADER 03600nam 2200505 450 001 9910818794003321 005 20231027140432.0 010 $a1-119-51041-4 010 $a1-119-47694-1 010 $a1-119-51042-2 035 $a(CKB)3840000000342493 035 $a(MiAaPQ)EBC5301762 035 $a(PPN)235345946 035 $a(EXLCZ)993840000000342493 100 $a20180308h20182018 uy 0 101 0 $aeng 135 $aurcnu|||||||| 181 $2rdacontent 182 $2rdamedia 183 $2rdacarrier 200 10$aScreening constant by unit nuclear charge method $edescription and application to the photoionization of atomic systems /$fIbrahima Sakho 210 1$aLondon, England ;$aHoboken, New Jersey :$cISTE :$cWiley,$d2018. 210 4$dİ2018 215 $a1 online resource (406 pages) $cillustrations (some color) 225 1 $aWaves Series 311 $a1-78630-273-X 320 $aIncludes bibliographical references and index. 327 $aPart 1: Different photoionization processes, rydberg series -- Experimental and theoretical methods of photoionization -- General formalism of the screening constant by unit nuclear charge method applied to photoionization -- Part 2. Applications in the calculations of energies and natural widths of the resonance states of multi-electron atomic systems: Application to the calculation of energies of two-electron atomic systems (helium-like systems) -- Calculating the energies of three-electron atomic systems (lithium-like systems) -- Application in the resonant photoionization of atomic systems of atomic numbers z = 4-12 -- Resonant photoionization of sulfur (S) and Ar+, Se²+ and Kr+ ions. 330 $a"Experimental studies on the photoionization of atomic systems have been further developed by the launch of satellites observing astrophysical plasmas (Chandra and XMM Newton, for example). However, one of the challenges inherent to these studies is the very low density of target ions and thus low count rates. In order to compensate for this, excessively long acquisition times are required which are often incompatible with the experiment times possible in synchrotron radiation centers. It has therefore become necessary, before the experiments, to attain the most precise estimation possible of photon energies in order to research photoexcitation responses. This is where the Screening Constant by Unit Nuclear Charge method shows its strength. Thanks to an extremely simple formalism, it quickly and precisely provides the position of excitation resonances as well as their width. This book offers a clear explanation of the Screening Constant by Unit Nuclear Charge method and explores its application to numerous domains of physics related to atomic spectroscopy. Various exercises are proposed in the book for the calculations of resonance energies and widths of Rydberg series for he-like systems, Li-like systems, Be-like systems, B-like systems and for more complex atomic systems such as sulfur, argon, selenium and Kr"--Page 4 of cover 410 0$aWaves series. 606 $aPhotoionization 606 $aCollisions (Nuclear physics) 606 $aPolarization (Nuclear physics) 615 0$aPhotoionization. 615 0$aCollisions (Nuclear physics) 615 0$aPolarization (Nuclear physics) 676 $a539.6 700 $aSakho$b Ibrahima$01217444 801 0$bMiAaPQ 801 1$bMiAaPQ 801 2$bMiAaPQ 906 $aBOOK 912 $a9910818794003321 996 $aScreening constant by unit nuclear charge method$94088202 997 $aUNINA