Design optimization of one-dimensional aberration-free x-ray gradually focusing lenses
In our previous work, we proposed a new design method for an aberration-free x-ray refractive focusing lens based on an ideal Cartesian oval shape to solve the aberration problem in x-ray compound refractive focusing. In this paper, we propose an optimization method for this new lens. By reducing th...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2023-01-01
|
| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/5.0135532 |
| _version_ | 1811172665975635968 |
|---|---|
| author | Yuanze Xu He Lin Futing Yi Jing Liu |
| author_facet | Yuanze Xu He Lin Futing Yi Jing Liu |
| author_sort | Yuanze Xu |
| collection | DOAJ |
| description | In our previous work, we proposed a new design method for an aberration-free x-ray refractive focusing lens based on an ideal Cartesian oval shape to solve the aberration problem in x-ray compound refractive focusing. In this paper, we propose an optimization method for this new lens. By reducing the aperture of each lens, we achieve the objective of increasing the effective aperture and improving the focusing performance of the lens. The simulation of the beam propagation method shows that the focusing performance of the optimized lenses is better in compound refractive lens shape but worse in the kinoform shape. This is different from the results obtained with the conventional kinoform lens. After further comparison, we found that this is because the step height of the kinoform lens is small when the lens aperture is very small, resulting in a strong diffraction effect that weakens the focusing performance of the lens. Further modifications to the structure of the kinoform lens are needed to improve this phenomenon. |
| first_indexed | 2024-04-10T17:34:05Z |
| format | Article |
| id | doaj.art-f72a0061e141493d9d465fe2444e1a85 |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-04-10T17:34:05Z |
| publishDate | 2023-01-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-f72a0061e141493d9d465fe2444e1a852023-02-03T16:42:06ZengAIP Publishing LLCAIP Advances2158-32262023-01-01131015023015023-710.1063/5.0135532Design optimization of one-dimensional aberration-free x-ray gradually focusing lensesYuanze Xu0He Lin1Futing Yi2Jing Liu3Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, ChinaShanghai Synchrotron Radiation Facility, Shanghai, ChinaInstitute of High Energy Physics, Chinese Academy of Sciences, Beijing, ChinaInstitute of High Energy Physics, Chinese Academy of Sciences, Beijing, ChinaIn our previous work, we proposed a new design method for an aberration-free x-ray refractive focusing lens based on an ideal Cartesian oval shape to solve the aberration problem in x-ray compound refractive focusing. In this paper, we propose an optimization method for this new lens. By reducing the aperture of each lens, we achieve the objective of increasing the effective aperture and improving the focusing performance of the lens. The simulation of the beam propagation method shows that the focusing performance of the optimized lenses is better in compound refractive lens shape but worse in the kinoform shape. This is different from the results obtained with the conventional kinoform lens. After further comparison, we found that this is because the step height of the kinoform lens is small when the lens aperture is very small, resulting in a strong diffraction effect that weakens the focusing performance of the lens. Further modifications to the structure of the kinoform lens are needed to improve this phenomenon.http://dx.doi.org/10.1063/5.0135532 |
| spellingShingle | Yuanze Xu He Lin Futing Yi Jing Liu Design optimization of one-dimensional aberration-free x-ray gradually focusing lenses AIP Advances |
| title | Design optimization of one-dimensional aberration-free x-ray gradually focusing lenses |
| title_full | Design optimization of one-dimensional aberration-free x-ray gradually focusing lenses |
| title_fullStr | Design optimization of one-dimensional aberration-free x-ray gradually focusing lenses |
| title_full_unstemmed | Design optimization of one-dimensional aberration-free x-ray gradually focusing lenses |
| title_short | Design optimization of one-dimensional aberration-free x-ray gradually focusing lenses |
| title_sort | design optimization of one dimensional aberration free x ray gradually focusing lenses |
| url | http://dx.doi.org/10.1063/5.0135532 |
| work_keys_str_mv | AT yuanzexu designoptimizationofonedimensionalaberrationfreexraygraduallyfocusinglenses AT helin designoptimizationofonedimensionalaberrationfreexraygraduallyfocusinglenses AT futingyi designoptimizationofonedimensionalaberrationfreexraygraduallyfocusinglenses AT jingliu designoptimizationofonedimensionalaberrationfreexraygraduallyfocusinglenses |