Cold Cathode Flat Panel X-ray Source for Talbot–Lau Grating Interferometer using Zinc Oxide Nanowire Field Emitter Arrays and Periodic Microstructured Anode
Source abstract
Abstract
The X-ray phase contrast imaging using a Talbot–Lau grating interferometer (GI) can achieve high resolution of low-contrast objects such as soft tissues. The periodic microstructured X-ray source is the key to achieving this technology. We have prepared a vacuum-encapsulated cold cathode periodic microstructured flat-panel X-ray source (FPXS) using zinc oxide (ZnO) nanowire field emitter arrays and microarrays of a Mo thin film transmission target. The device has an operating voltage of 40 kV and a current of 684 μA. A radiation dose rate of 428 μGy/s was measured at a distance of 10 cm from the periodic microstructured FPXS. The X-ray emission distribution is characterized by optical images and radiochromic film, and the localized X-ray emission was confirmed. The X-ray imaging capability was validated by using projection imaging. Our device has potential applications in Talbot–Lau GI phase-contrast imaging.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Advanced X-ray Imaging Techniques · Advanced Electron Microscopy Techniques and Applications · Advancements in Photolithography Techniques
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, Sun Yat-sen University, Guangzhou 510275, China
School of Biomedical Engineering, Southern Medical University, Guangzhou 510515, China
Funding
National Key Research and Development Program of China · Fundamental Research Funds for the Central Universities · National Natural Science Foundation of China · State Key Laboratory of Optoelectronic Materials and Technologies
References (32)
Show source-provided references
1. 10.1016/j.foodcont.2015.08.03910.1016/j.foodcont.2015.08.039 ↗
2. 10.1108/0260228081088253510.1108/02602280810882535 ↗
3. 10.1016/j.crhy.2008.02.00310.1016/j.crhy.2008.02.003 ↗
4. 10.1016/j.nima.2017.05.03410.1016/j.nima.2017.05.034 ↗
5. 10.1016/j.ejmp.2020.07.02110.1016/j.ejmp.2020.07.021 ↗
6. 10.1038/nphoton.2010.24010.1038/nphoton.2010.240 ↗
7. 10.1002/adfm.20230585810.1002/adfm.202305858 ↗
8. 10.1021/acsenergylett.3c0158110.1021/acsenergylett.3c01581 ↗
9. 10.1143/JJAP.45.525410.1143/JJAP.45.5254 ↗
10. 10.1016/j.ejmp.2020.11.00310.1016/j.ejmp.2020.11.003 ↗
11. 10.3390/app1107297110.3390/app11072971 ↗
12. 10.1038/nphys26510.1038/nphys265 ↗
13. 10.1038/nmat209610.1038/nmat2096 ↗
14. 10.1073/pnas.210312611810.1073/pnas.2103126118 ↗
15. 10.1364/OPEX.13.00629610.1364/OPEX.13.006296 ↗
16. 10.1002/pssa.20118427610.1002/pssa.201184276 ↗
17. 10.1143/JJAP.48.07651210.1143/JJAP.48.076512 ↗
18. 10.1364/OE.19.02266910.1364/OE.19.022669 ↗
19. 10.1088/1361-6560/ab26ce10.1088/1361-6560/ab26ce ↗
20. 10.1016/j.apsusc.2019.04.16910.1016/j.apsusc.2019.04.169 ↗
21. 10.1016/j.carbon.2015.07.04410.1016/j.carbon.2015.07.044 ↗
22. 10.1039/C8NR08984A10.1039/C8NR08984A ↗
23. 10.1007/s11664-022-09516-810.1007/s11664-022-09516-8 ↗
24. 10.1063/1.234582910.1063/1.2345829 ↗
25. 10.1063/1.493800610.1063/1.4938006 ↗
26. 10.1016/j.vacuum.2017.08.01510.1016/j.vacuum.2017.08.015 ↗
27. 10.1063/5.006133210.1063/5.0061332 ↗
28. Li, Y.; Duan, J.; Zhi, S.; Cai, J.; Mou, X. Multi-energy CT image restoration algorithm based on the flat-panel X-ray source. In ISICDM 2020: The Fourth International Symposium on Image Computing and Digital Medicine, Shenyang, China, December 5–7, 2020; pp 5–9. 10.1145/3451421.345142310.1145/3451421.3451423 ↗
29. Bowen, D. K.; Cameron, J. D.; Dirckx, C.; Edwards, P.; Fohler, M.; Gomes, I. A.; Mavalankar, A. M.; Phillips, S.; Renforth, K. L.; Richards, S. P.; Soloviev, V. Y.; Sottini, S.; Valero, A. T.; Yumnam, N.; Wells, S. G. Application of a novel addressable-array X-ray source to medical imaging of extremeties. In 2023 IEEE 36th International Vacuum Nanoelectronics Conference (IVNC); IEEE, Cambridge, MA, USA July 10–13, 2023; pp 192–194. 10.1109/IVNC57695.2023.1018901010.1109/IVNC57695.2023.10189010 ↗
30. 10.1109/TNS.2023.332790410.1109/TNS.2023.3327904 ↗
31. 10.1098/rspa.1928.009110.1098/rspa.1928.0091 ↗
32. 10.1116/1.59134010.1116/1.591340 ↗