Monte Carlo investigation of cell defects on detection properties in radial packed square-pore micro-channel optics

Hua Cai; Kangsheng Huang; Jiuwang Wang; Yong Sun; Hui Liu; Tiezhu Bo; Qing Li; Xiaoxuan Shi; Chang Liu; Caili Wang; Juan Liu; Shiyong Xie; Jinsheng Jia

doi:10.1117/12.2503896

12 December 2018 Monte Carlo investigation of cell defects on detection properties in radial packed square-pore micro-channel optics

Hua Cai, Kangsheng Huang, Jiuwang Wang, Yong Sun, Hui Liu, Tiezhu Bo, Qing Li, Xiaoxuan Shi, Chang Liu, Caili Wang, Juan Liu, Shiyong Xie, Jinsheng Jia

Author Affiliations +

Proceedings Volume 10848, Micro-Optics and MOEMS; 1084805 (2018) https://doi.org/10.1117/12.2503896
Event: International Symposium on Optoelectronic Technology and Application 2018, 2018, Beijing, China

Abstract

Micro-channel optics (MPO) is a two dimensional arrays of capillary channel EUV/X-ray imaging precision optics. Imaging quality and detection efficiency are crucial to EUV/X-ray detection. Radial packed square-pore type micro-channel optics (RPMPO) is a novel MPO, which is preferable to the cruciform focus of Square packed square-pore micro-channel optics (SPMPO, namely Lobster eye optics) geometry. Cell defects of micro-channel affect the imaging quality and detection efficiency seriously, however, which were inevitable in the MPO manufacturing. In this paper, characteristics of focusing images for standard and defect states RPMPOs were compared by ray trace method of Monte Carlo algorithm. Three main cell defects, such as Taper, Twist and Nonsquare, were investigated in the influence on the imaging quality and detection efficiency under different cell flaw sizes. Results indicated that under a constant illumination, Nonsquare defects of cell affected the detection efficiency most, twist defects did less, and taper defects did least. Besides, twist defects of cell affected the quality of focal image most, nonsquare defects did less, and taper defects did least. The detection efficiency decreasing obeyed the Boltzmann, Bidoseresp and Lorentz function as the increasing of conical degree, twist angle and fillet radius in taper, twist and nonsquare defect, respectively. The focal imaging quality deteriorating obeyed Expdec1, Expdec3 and Langevin distribution with the increasing of conical degree, twist angle and fillet radius in taper, twist and nonsquare defect, respectively.This results supplied a significant support for the future researches on curved MPO and EUV/X-ray optical system based on MPO.

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Hua Cai, Kangsheng Huang, Jiuwang Wang, Yong Sun, Hui Liu, Tiezhu Bo, Qing Li, Xiaoxuan Shi, Chang Liu, Caili Wang, Juan Liu, Shiyong Xie, and Jinsheng Jia "Monte Carlo investigation of cell defects on detection properties in radial packed square-pore micro-channel optics", Proc. SPIE 10848, Micro-Optics and MOEMS, 1084805 (12 December 2018); https://doi.org/10.1117/12.2503896

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KEYWORDS

Monte Carlo methods

X-ray imaging

X-ray optics

X-rays

Channel projecting optics

Image quality

Optics manufacturing

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