Structural design method of the meridional lobster-eye lens with optimal efficiency
| Autor: | Yeming Han, Wenjun He, Mingzhao Ouyang, Zhao Xuan, Ma Shizhang, Yuegang Fu, Yuan Hu, L. Yang |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Physics
Channel (digital image) business.industry X-ray optics X-ray telescope Zonal and meridional 01 natural sciences Atomic and Molecular Physics and Optics law.invention 010309 optics Lens (optics) Wavelength Optics law 0103 physical sciences Reflection (physics) Electrical and Electronic Engineering Constant (mathematics) business Engineering (miscellaneous) |
| Zdroj: | Applied Optics. 58:9033 |
| ISSN: | 2155-3165 1559-128X |
| DOI: | 10.1364/ao.58.009033 |
| Popis: | Lobster-eye optics has been proposed as a high-energy detection device with great potential for astronomical observation and safety inspection due to its large-field-of-view (FOV) focusing ability. In this paper, we study the relationship between the optimal structural parameters of the meridional lobster-eye lens and focusing efficiency. The maximum odd-reflection component, which relates only to the FOV and the channel ratio of depth to width, has been found. Furthermore, the structural constant C, which determines the optimal efficiency structure of the meridional lobster-eye lens, is revealed for hard x-rays. Meanwhile, by introducing accurate reflectivity of iridium in soft x-rays, the constraint of the effective FOV with respect to x-ray wavelength is analyzed. The research results can help to design the optimal structure of the lobster-eye lens in multiple spectra. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|