Prospects of ion-mobility measurements in superheavy element research

Autor:	M. Laatiaoui, K Schmid, Dietrich Habs, M. Sewtz
Rok vydání:	2007
Předmět:	Physics Electron density Atomic electron transition Electric field Expectation value Electronic structure Electron configuration Atomic physics Wave function Atomic and Molecular Physics and Optics Ion
Zdroj:	The European Physical Journal D. 45:139-145
ISSN:	1434-6079 1434-6060
DOI:	10.1140/epjd/e2007-00179-4
Popis:	The element specific electron configuration of ions directly reflects the two quantum mechanical observables 〈r2〉 and rmax, which denote the r2 expectation value of the electron density and the principle maximum of the wave function of the outermost electron orbital, respectively. Thus, the determination of these observables may present a new access to element identification of single superheavy nuclides. In this paper, we discuss how these observables are related to ionic radii deduced from ion-mobility data using the most simple hard sphere model and semi-empirical (n,6,4) model potentials for the interaction of heavy ions with noble gases. A concept for a high resolution ion-mobility spectrometer is presented. Optimum extraction efficiency of the ions will be achieved by decoupling the ion motion from the electric field drift by the friction force of the suitably shaped gas flow at the exit nozzle.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5dcc612f002ad89a701509860d114465 https://doi.org/10.1140/epjd/e2007-00179-4 Zobrazit plný text záznamu Full text from SpringerLink