title: Dissociation study of tellurium cluster ions, Te(n)(+) (n = 25-85) using secondary ion mass spectrometry.
abstract: Dissociation pathways of tellurium clusters, Te(n)(+) (n = 25-85), were investigated by secondary ion mass spectrometry. Positively charged ions were generated from a tellurium sheet by bombardment with 10 keV xenon ion beam. Mass analyses of cluster ions were performed using a grand-scale sector mass spectrometer. In the first field-free region, Te(n)(+) (n = 25-80) had a large dissociation probability with five- and six-atom emission and Te(n)(+) (n = 50-85) had a slightly large dissociation probability with 10- and 11-atom emission. Five- and six-atom dissociation in the second field-free region could be also observed. These results were most likely due to the cluster emission processes for Te(n)(+), although sequential atom emission and cluster emission could not be distinguished by this type of experiments.
authors.affiliation: Department of Physics, Graduate School of Science, Osaka University, Machikaneyama 1-16, Toyonaka Osaka 560-0043, Japan. ito@phys.wani.osaka-u.ac.jp
authors.forename: H
authors.initials: H
authors.lastname: Ito
authors.forename: T
authors.initials: T
authors.lastname: Matsuo
authors.forename: T
authors.initials: T
authors.lastname: Sato
authors.forename: T
authors.initials: T
authors.lastname: Ichiharai
authors.forename: I
authors.initials: I
authors.lastname: Katakuse
mesh_terms: D018629:Spectrometry, Mass, Secondary Ion / Q000379:methods*; D013691:Tellurium / Q000737:chemistry*
chemical_list: D013691:Tellurium