Photodissociation of the free BeC₆^2- dianion

BERKOVITS, D.; HEBER, O.; KLEIN, J.; MITNIK, D.; PAUL, M.

NUCLEAR INSTRUMENTS AND METHODS IN PHYSICS RESEARCH SECTION B: BEAM INTERACTIONS WITH MATERIALS AND ATOMS

Elsevier

Año: 2000 vol. 172 p. 350 - 354

0168-583X

We have confirmed the existence of the BeC62− dianion produced in a Cs-sputter negative ion source with a cathode of mixed Be metal and graphite powder. Using our laser-accelerator mass spectrometry (AMS) system, we have studied the photoelectric interaction of the dianion and show that it is bound by more than 1.165 eV relative to any photodetachment or dissociation channel. The total cross-section leading to either of the channels for 2.33 eV photons is 6 Mb.