Differential ionization measurements using positron impact

Autor:	C. Doudna, Robert D. DuBois, Kh. Khayyat, C. Lloyd
Rok vydání:	2002
Předmět:	Nuclear and High Energy Physics Photon Argon Chemistry Double ionization Shell (structure) chemistry.chemical_element Photoionization Positron Ionization Physics::Atomic and Molecular Clusters Physics::Atomic Physics Atomic physics Instrumentation Energy (signal processing)
Zdroj:	Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 192:63-66
ISSN:	0168-583X
DOI:	10.1016/s0168-583x(02)00707-3
Popis:	This paper describes techniques being used at the University of Missouri-Rolla for the purpose of obtaining differential ionization information for positron impact. Data are presented for single and multiple ionization of argon as a function of energy loss by positrons scattered in the forward direction. The impact energy is 750 eV. The data and their ratios are used to provide insights into which ionization channels are active. For large energy losses the double ionization ratios are found to be very similar to those obtained for photon impact energies where only outer shell ionization is possible
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a693f90c29c048e952e807e1a8beacf1 https://doi.org/10.1016/s0168-583x(02)00707-3 Zobrazit plný text záznamu Full Text from ScienceDirect