| Autor: |
Schomas, D., Rendler, N., Krull, J., Richter, R., Mudrich, M. |
| Rok vydání: |
2017 |
| Předmět: |
|
| Zdroj: |
The Journal of Chemical Physics 147, 013942 (2017) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1063/1.4984076 |
| Popis: |
We present a compact design for a velocity-map imaging spectrometer for energetic electrons and ions. The standard geometry by Eppink and Parker [A. T. J. B. Eppink and D. H. Parker, Rev. Sci. Instrum. 68, 3477 (1997)] is augmented by just two extended electrodes so as to realize an additional einzel lens. In this way, for a maximum electrode voltage of 7 kV we experimentally demonstrate imaging of electrons with energies up to 65 eV. Simulations show that energy acceptances of <270 and <1,200 eV with an energy resolution of dE / E <5% are achievable for electrode voltages of <20 kV when using diameters of the position-sensitive detector of 42 and 78 mm, respectively. |
| Databáze: |
arXiv |
| Externí odkaz: |
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