Investigation of the dependence of the energy resolution of a hemispherical deflection analyzer on the distance of the position sensitive detector from the focal plane

29th International Conference on Photonic, Electronic, and Atomic Collisions

Nounis, C.^1 ; Laoutaris, A.^1 ; Madesis, I.^2,3 ; Dimitriou, A.^2,3 ; Sise, O.^4 ; Benis, E.P.^5 ; Zouros, T.J.M.^2,3

Dept. of Applied Physics, National Technical University of Athens, Athens

GR 15780, Greece^1

Dept. of Physics, University of Crete, Heraklion

GR 71003, Greece^2

Tandem Accelerator Laboratory, INPP, NCSR Demokritos, Ag Paraskevi

GR 15310, Greece^3

Dept. of Science Education, Faculty of Education, Suleyman Demirel Univ., Isparta

32260, Turkey^4

Dept. of Physics, University of Ioannina, Ioannina

GR 45110, Greece^5

关键词: 2D position-sensitive detectors;    Detection plane;    Energy resolutions;    Focal Plane;    Hemispherical deflector analyzer;    Line shape;    Optimum conditions;    Position-Sensitive Detectors;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/635/5/052063/pdf
DOI  :  10.1088/1742-6596/635/5/052063

来源: IOP

【 摘 要 】

We investigate the energy resolution and line shape of a biased paracentric hemispherical deflector analyzer considering the distance between the exit focal plane and the detection plane. Equipped with a piezoelectrically controlled location of a 2D position sensitive detector we were able to accurately determine the optimum conditions for best energy resolution. The voltages of the injection lens of the spectrometer were also optimized for each location.