The doubly inelastic contribution to electron loss: H0and He0(0.5 MeV u-1) in collision with Ar

Autor:	B. W. Farmery, R. Maier, M. Kuzel, M.W. Lucas, O. Heil, D.H. Jakubassa-Amundsen, K. O. Groeneveld
Rok vydání:	1992
Předmět:	Nuclear physics Physics Projectile Ionization Inelastic collision Electron Atomic physics Condensed Matter Physics Collision Atomic and Molecular Physics and Optics Electron ionization Beam (structure) Coincidence
Zdroj:	Journal of Physics B: Atomic, Molecular and Optical Physics. 25:1839-1851
ISSN:	1361-6455 0953-4075
DOI:	10.1088/0953-4075/25/8/017
Popis:	The authors have measured absolute doubly differential cross sections for electron loss from the simple structured projectiles H0 and He0 in collision with Ar. By counting electrons in coincidence with the individual charge states of the transmitted beam they are able to separate the contributions from projectile ionization and target ionization, thereby showing the importance of events where both projectile and target are ionized in a single collision: the 'doubly inelastic' events. They should like to draw attention to two possible mechanisms within the doubly inelastic channel and give a theoretical description of the dominant one, making a second Born evaluation and including it within the electron impact approximation. This can result in some overprediction of the absolute cross sections. Better numerical agreement is often achieved by calculating only the singly inelastic contribution but the authors' experiments show that such a model is not conceptually correct.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a48a26a39caabf0f7d21268363fc9711 https://doi.org/10.1088/0953-4075/25/8/017 Zobrazit plný text záznamu