Danilkin, M.; Vitukhnovsky, A.; Kolymagin, D.; Perevedentseva, E.; Gritsienko, A.; Tokunov, Y.; Zakharchuk, I.; Primenko, A.; Prutskov, G. Do the Laser-Printed 3D-Structures Withstand the X-ray Synchrotron Radiation Beam?. Preprints2023, 2023110747. https://doi.org/10.20944/preprints202311.0747.v1
APA Style
Danilkin, M., Vitukhnovsky, A., Kolymagin, D., Perevedentseva, E., Gritsienko, A., Tokunov, Y., Zakharchuk, I., Primenko, A., & Prutskov, G. (2023). Do the Laser-Printed 3D-Structures Withstand the X-ray Synchrotron Radiation Beam?. Preprints. https://doi.org/10.20944/preprints202311.0747.v1
Chicago/Turabian Style
Danilkin, M., Alexei Primenko and Grigory Prutskov. 2023 "Do the Laser-Printed 3D-Structures Withstand the X-ray Synchrotron Radiation Beam?" Preprints. https://doi.org/10.20944/preprints202311.0747.v1
Abstract
The radiation stability of polymer test objects fabricated by direct laser writing is studied. The two groups of 6 cubes (50×50×50 μm3) were printed on a common silicon substrate. 6 cubes were irradiated with X-rays in the synchrotron radiation beam (12 keV, 1010 photons/mm2/s), the other 6 kept non-irradiated for the reference. In each group, the fabrication parameters (laser power and slicing step) were uniformly varied from cube to cube. Each irradiated cube was exposed with the dose of 1013 X-ray photons. The calibration of this dose in the radiological units (Gy) was carried out using the tissue-equivalent thermoluminescent detectors (TLD-800). The corresponding exposition dose was estimated as 30 kGy for each cube. The radiation effects were evaluated by Raman spectroscopy and by morphological changes observed with the raster electron microscope. The primary radiation effect appears in the essential increase of the polymerization degree with consuming carbon-carbon double bonds in favor of the polymer cross-linking. Only one cube of 6 has changed the size and shape due to this effect, while the others retained the initial shape. Morphological changes are connected with the improper fabrication parameters (laser power and slicing step). Properly fabricated objects withstand the X-rays of the synchrotron radiation beam.
Keywords
Additive manufacturing; direct laser writing; X-ray optics; radiation effects in polymer materials; thermoluminescent radiation detectors
Subject
Physical Sciences, Applied Physics
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
