Photoelectron imaging of size-selected metal cluster anions in a quasi-continuous mode
-
- Horio, Takuya
- Department of Chemistry, Faculty of Science, Kyushu University
-
- Minamikawa, Kento
- Department of Chemistry, Faculty of Science, Kyushu University
-
- Nishizato, Tasuku
- Department of Chemistry, Faculty of Science, Kyushu University
-
- Hashimoto, Haruki
- Department of Chemistry, Faculty of Science, Kyushu University
-
- Matsumoto, Kazuaki
- Department of Chemistry, Faculty of Science, Kyushu University
-
- Arakawa, Masashi
- Department of Chemistry, Faculty of Science, Kyushu University
-
- Terasaki, Akira
- Department of Chemistry, Faculty of Science, Kyushu University
Search this article
Description
We present a novel high-repetition-rate photoelectron imaging (PEI) apparatus for exploring electronic structures of metal cluster anions. A continuous beam of mass-selected metal cluster anions, generated by a magnetron-sputtering cluster-ion source coupled with a quadrupole mass filter, is chopped into sub-megahertz ion bunches using a high-voltage pulser. The quasi-continuous anion beam is introduced into a PEI spectrometer, where the anions are photodetached using a 404 nm (3.07 eV) continuous-wave laser diode. As a demonstration, we acquire photoelectron images for size-selected Ag cluster anions, Ag_N̄ (N = 3, 7, 14), and show that each image can be obtained in a short accumulation time (50 s) with a kinetic energy resolution (ΔE/E) of 4% at E = 1.77 eV. The quasi-continuous PEI technique enables high-count-rate, space-charge-free acquisition of photoelectron spectra and angular distributions not only from size-selected metal cluster anions but also from anions prepared by other continuous ion sources, such as electrospray ionization.
Journal
-
- Review of Scientific Instruments
-
Review of Scientific Instruments 93 (8), 083302-, 2022-08-23
AIP Publishing
- Tweet
Details 詳細情報について
-
- CRID
- 1050861482657152384
-
- NII Book ID
- AA12442307
-
- ISSN
- 10897623
- 00346748
-
- HANDLE
- 2324/4822554
-
- Text Lang
- en
-
- Article Type
- journal article
-
- Data Source
-
- IRDB
- Crossref
- KAKEN