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Investigation of a 90 Degree Spherical Deflecting Analyzer Operated in an Asymmetrically Charged Configuration | | Chong-Yu Ruan
; Scott Nguyen
; Manfred Fink
; | | Date: |
12 May 1999 | | Subject: | Optics; Instrumentation and Detectors | physics.optics physics.ins-det | | Abstract: | The electron optics of a 90 degree spherical deflecting analyzer (SDA-90) is investigated with an imaging matrix formalism. As a preanalyzer in the UTA-neutrino experiment, high transmission and reasonable energy resolution are the choices of optimization. The magnification of the source through the analyzer plays the key role in determining the energy resolution. The imaging matrix approach provides graphical information to facilitate such an evaluation. We can demonstrate that in case where the analyzer is asymmetrically charged, the rotation of the image helps increase both transmission probability and resolution. A telefocus electron gun is used to check the numerical result, and to investigate the transverse focusing behavior. | | Source: | arXiv, physics/9905032 | | Services: | Forum | Review | PDF | Favorites | |
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